grepcent / static financial knowledge base

AKAMAI TECHNOLOGIES INC (AKAM)

CIK: 0001086222. SIC: 7389 Services-Business Services, NEC. Latest 10-K as of: 2026-02-20.

SIC breadcrumb: Services > Business Services > SIC 7389 Services-Business Services, NEC

SEC company page: https://www.sec.gov/edgar/browse/?CIK=1086222. Latest filing source: 0001086222-26-000022.

Informational only - descriptive public-record data, not investment advice.

Selected Fundamentals

MetricValueUnitFYFiled
Revenue4,208,175,000USD20252026-02-20
Net income452,031,000USD20252026-02-20
Assets11,479,643,000USD20252026-02-20

Financials

Annual standardized facts from SEC companyfacts as of latest extracted filing date 2026-02-20. Source: https://data.sec.gov/api/xbrl/companyfacts/CIK0001086222.json. Derived margins, ratios, and free cash flow are computed from the extracted annual SEC facts.

Flow metrics use full-year FY periods from 10-K/10-K/A filings; balance-sheet metrics use FY-end instants. Free cash flow = operating cash flow - capital expenditures. Missing metrics are omitted rather than fabricated.

Metric2016201720182019202020212022202320242025
Revenue2,347,988,0002,489,035,0002,714,474,0002,893,617,0003,198,149,0003,461,223,0003,616,654,0003,811,920,0003,991,168,0004,208,175,000
Net income320,727,000222,766,000298,373,000478,035,000557,054,000651,642,000523,672,000547,629,000504,918,000452,031,000
Operating income466,510,000314,289,000362,499,000548,918,000658,534,000783,148,000676,274,000637,338,000533,411,000566,944,000
Diluted EPS1.821.291.762.903.373.933.263.523.273.07
Operating cash flow871,812,000800,983,0001,008,327,0001,058,304,0001,215,000,0001,404,563,0001,274,676,0001,348,439,0001,519,171,0001,518,765,000
Capital expenditures180,949,000254,146,000217,609,000359,667,000514,313,000328,969,000241,266,000457,909,000390,433,000507,786,000
Share buybacks373,794,000361,194,000750,000,000334,519,000193,588,000522,255,000608,010,000654,046,000557,468,000799,963,000
Assets4,373,146,0004,648,916,0005,461,770,0007,006,886,0007,764,130,0008,138,673,0008,303,400,0009,900,037,00010,368,785,00011,479,643,000
Liabilities1,148,776,0001,286,447,0002,269,910,0003,348,928,0003,512,834,0003,608,659,0003,943,213,0005,302,882,0005,490,428,0006,502,272,000
Stockholders' equity3,270,218,0003,362,469,0003,191,860,0003,657,958,0004,251,296,0004,530,014,0004,360,187,0004,597,155,0004,878,357,0004,977,371,000
Cash and cash equivalents324,169,000313,382,0001,036,455,000393,745,000352,917,000536,725,000542,337,000489,468,000517,707,000930,231,000
Free cash flow690,863,000546,837,000790,718,000698,637,000700,687,0001,075,594,0001,033,410,000890,530,0001,128,738,0001,010,979,000

Ratios

ROE and ROA use period-end equity/assets. Liabilities / equity uses total liabilities divided by stockholders' equity. Current ratio uses current assets divided by current liabilities when both are reported.

Metric2016201720182019202020212022202320242025
Net margin13.66%8.95%10.99%16.52%17.42%18.83%14.48%14.37%12.65%10.74%
Operating margin19.87%12.63%13.35%18.97%20.59%22.63%18.70%16.72%13.36%13.47%
Return on equity9.81%6.63%9.35%13.07%13.10%14.38%12.01%11.91%10.35%9.08%
Return on assets7.33%4.79%5.46%6.82%7.17%8.01%6.31%5.53%4.87%3.94%
Liabilities / equity0.350.380.710.920.830.800.901.151.131.31
Current ratio3.502.952.093.222.542.432.412.161.232.36

Financial Charts

Quarterly

Quarterly standardized facts from SEC companyfacts as of latest extracted filing date 2026-05-08. Source: https://data.sec.gov/api/xbrl/companyfacts/CIK0001086222.json.

Flow metrics use discrete quarter-length periods from 10-Q/10-Q/A filings. Q4 revenue and net income are derived only when annual FY and nine-month YTD facts exist for the same fiscal year; derived Q4 values are labeled. EPS Q4 is not derived.

QuarterEnd DateRevenueNet IncomeDiluted EPSMethod
2022-Q22022-06-300.74reported discrete quarter
2022-Q32022-09-300.68reported discrete quarter
2023-Q12023-03-310.62reported discrete quarter
2023-Q22023-06-30935,721,000128,816,0000.84reported discrete quarter
2023-Q32023-09-30965,484,000160,542,0001.04reported discrete quarter
2023-Q42023-12-31995,017,000161,165,000derived Q4 = FY annual - nine-month YTD
2024-Q12024-03-31986,970,000175,418,0001.11reported discrete quarter
2024-Q22024-06-30979,580,000131,688,0000.86reported discrete quarter
2024-Q32024-09-301,004,679,00057,907,0000.38reported discrete quarter
2024-Q42024-12-311,019,939,000139,905,000derived Q4 = FY annual - nine-month YTD
2025-Q12025-03-311,015,139,000123,171,0000.82reported discrete quarter
2025-Q22025-06-301,043,494,000103,618,0000.71reported discrete quarter
2025-Q32025-09-301,054,630,000140,170,0000.97reported discrete quarter
2025-Q42025-12-311,094,912,00085,072,000derived Q4 = FY annual - nine-month YTD
2026-Q12026-03-311,073,610,000106,319,0000.71reported discrete quarter

Quarterly Charts

Macro Cross-References

Latest quarter (10-Q)

Latest 10-Q source: 0001086222-26-000058.

Extracted structurally from real Item 2 body heading to real Item 3/4 boundary. Published MD&A gate trimmed front/tail over-capture. Confidence: high. Filing date: 2026-05-08. Report date: 2026-03-31.

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

This quarterly report on Form 10-Q, particularly Management’s Discussion and Analysis of Financial Condition and Results of Operations set forth below, and notes to our unaudited interim condensed consolidated financial statements included herein contain “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 regarding future events and the future results of Akamai Technologies, Inc., which we refer to as “we,” “us,” or the “Company.” All statements other than statements of historical facts are statements that could be deemed forward-looking statements. These statements are subject to risks and uncertainties and are based on the beliefs and assumptions of our management as of the date hereof based on information currently available to our management. Use of words such as “believes,” “could,” “expects,” “anticipates,” “intends,” “plans,” “seeks,” “projects,” “estimates,” “should,” “would,” “forecasts,” “if,” “continues,” “goal,” “likely,” “may,” “will,” variations of such words or similar expressions are intended to identify a forward-looking statement. Forward-looking statements are not guarantees of future performance and involve risks, uncertainties and assumptions. Actual results may differ materially from the forward-looking statements we make as a result of various factors, including, but not limited to: potential slowing revenue growth, global economic and geopolitical conditions, including changes in customer spending and inflation, tariffs, trade restrictions, export controls and retaliatory measures, our ability to acquire or develop new solutions, our ability to compete effectively, including our ability to continue to grow our artificial intelligence ("AI") infrastructure, compute services and solutions, including risks that our AI initiatives may not be successful or may introduce operational, security or regulatory risks, security risks stemming from ineffective information technology systems or cybersecurity breaches, risks of maintaining global operations, including physical attacks on or destruction of data centers and critical infrastructure in regions affected by armed conflict, regulatory developments, supply chain disruptions, significant increases in server, memory and co-location costs due to market dynamics, intellectual property claims or disputes, investment related risks and maintaining an effective system of internal controls. See “Risk Factors” elsewhere in this quarterly report on Form 10-Q and in our other reports filed with the Securities and Exchange Commission for a discussion of certain risks associated with our business. We disclaim any obligation to update any forward-looking statements as a result of new information, future events or otherwise, including the potential impact of any mergers, acquisitions, divestitures or other events that may be announced after the date hereof.

Our management’s discussion and analysis of our financial condition and results of operations is based upon our unaudited interim condensed consolidated financial statements included elsewhere in this quarterly report on Form 10-Q, which we have prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP"), for interim periods and with Regulation S-X promulgated under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). The preparation of these unaudited interim condensed consolidated financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses and related items, including, but not limited to, revenue recognition, accounts receivable and related reserves, valuation and impairment of marketable securities, goodwill and acquired intangible assets, capitalized internal-use software development costs, impairment and useful lives of long-lived assets, income taxes and stock-based compensation. We base our estimates and judgments on historical experience and on various other assumptions that we believe to be reasonable under the circumstances at the time they are made. Actual results may differ from our estimates. See the section entitled “Application of Critical Accounting Policies and Estimates” in our annual report on Form 10-K for the year ended December 31, 2025 for further discussion of our critical accounting policies and estimates.

Overview

We develop and provide solutions for global enterprises to build, secure and accelerate their applications and digital experiences through our massively distributed global infrastructure, which underpins our security, delivery and other cloud applications and cloud infrastructure services solutions, and is central to our financial success. Together, these solutions are positioned to benefit from the rapid evolution of AI. The key factors that influence our financial success are our ability to build on recurring revenue commitments across our product portfolios, increase traffic on our network, continue to develop, scale and successfully bring to market our cloud infrastructure services, including Akamai Inference Cloud ("AIC") and compute-to-edge solutions, that meet the needs of professional users and enterprises, including with respect to reliability, effectively manage the prices we charge for our solutions considering the market dynamics on our cost structure driven by hyperscalers, continuously develop new and existing products and appropriately manage our capital spending and other operational expenses. The purpose of this discussion and analysis section is to provide material information relevant to an assessment of our financial condition and results of operations from management’s perspective, including to describe and explain key trends, events and other factors that impacted our reported results and that are likely to impact our future performance.

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Revenue

We primarily derive revenue from the sale of services to customers pursuant to contracts having terms of one year or longer, which allows us to have a consistent and predictable base level of revenue. Services included in our contracts consist of security solutions, the delivery of content, applications and software over the internet, cloud infrastructure solutions and professional services. In addition to a base level of revenue, we are also dependent on our ability to increase our product offerings and to cross-sell additional services to our new and existing customers, particularly for our security and cloud infrastructure services portfolios. Our revenue is also impacted by customer renewals and the pricing for such renewals, the rate of adoption and timing of customer offerings, variability of one-time events, usage of cloud computing services and the amount of traffic we serve on our network. Geopolitical, economic and other developments that impact our customers' businesses can also impact our ability to attract new customers or continue to cross-sell additional services to existing customers and traffic levels for customers with variable usage. Over the longer term, our ability to continually develop and expand our product portfolio, to successfully bring those products to market and to effectively manage the prices we charge for our solutions considering the market dynamics on our cost structure driven by hyperscalers, are key factors impacting our revenue growth.

We have observed the following trends related to our revenue in recent years:

•Increased sales of our security solutions, led by application security solutions and microsegmentation solutions, and increased sales of our cloud infrastructure services solutions, attributable to enhanced services on our platform, have made a significant contribution to revenue growth. Our security and cloud infrastructure services solutions continue to contribute to a large portion of our revenue. We plan to continue to invest in these areas with a focus on AI applications for our security products and cloud infrastructure services, including expanding our platform, to further advance our product portfolios and sales capabilities.

•Traffic growth on our network has improved, but remains moderated as compared to prior years. We, and the industry more broadly, are seeing growth at a slower pace than we have experienced in the past. In particular, customers in verticals such as media and gaming have optimized their traffic to manage through underlying business challenges at a time of global macroeconomic and geopolitical headwinds. Some of our customers' businesses have been impacted by these headwinds, and as a result, they may continue to reduce their spending or optimize their traffic, which would reduce traffic on our network and revenue. In prior years we also experienced incremental traffic growth from past asset acquisitions. We expect the moderation of traffic growth trends to continue for the remainder of 2026.

•The prices paid by some of our delivery and security customers have declined in recent years at contract renewal due to competition, which negatively impacts our revenue growth rates. We have been able to mitigate some of the negative impacts to our revenue growth rates by upselling incremental solutions to our existing customers. We are taking steps upon contract renewals to sign customers to multi-year contracts that reflect the significant cost increases we have experienced from hyperscaler market dynamics and their traffic volumes to better align unit pricing.

•Revenue from our international operations continues to grow, particularly from new customer acquisition and cross-selling of incremental solutions. Because we publicly report in U.S. dollars, our reported revenue results are negatively impacted when the U.S. dollar strengthens and benefit when the U.S. dollar weakens.

•We have experienced variations in certain types of revenue from quarter-to-quarter. These quarterly variations in revenue are attributable to, among other things, the timing of large customer contract signings and renewals; the frequency and timing of purchases of custom solutions or licensed software; the nature and timing of software and gaming releases by our customers; holiday season activity; and whether there are large live sporting or other events or situations that impact the amount of media traffic on our network.

Expenses

Our level of profitability is impacted by our expenses, including direct costs to support our revenue such as bandwidth and co-location costs, which includes energy to power our network. We have observed the following trends related to our profitability in recent years:

•Co-location costs are a significant portion of our cost of revenue. As we continue to scale our cloud infrastructure services, including our platform to support AI applications, we have experienced a significant increase in our co-location costs, particularly as competition for data center space has continued to increase, including from hyperscalers. We have entered into, and expect to continue to enter into, longer term leases that include certain financial

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commitments. The costs of the financial commitments are expensed ratably over the lease term, and, as a result, in some cases, we are incurring costs in advance of these locations being fully utilized. We continue to improve our internal-use software and remain disciplined in managing our hardware deployments, which enables us to use servers more efficiently. We will need to continue to effectively manage our co-location costs to maintain or improve current levels of profitability.

•Network bandwidth costs are also a significant portion of our cost of revenue. We have been able to manage these costs through investment in internal-use software development to improve the performance and efficiency of our network and, more recentl

[Excerpt truncated for page length; source filing is linked above.]

Latest 10-K MD&A

Extracted structurally from real Item 7 body heading to real Item 7A/8 boundary. Confidence: high. Filing date: 2026-02-20. Report date: 2025-12-31.

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

This Management’s Discussion and Analysis of Financial Condition and Results of Operations ("MD&A"), should be read in conjunction with our consolidated financial statements and notes thereto that appear elsewhere in this annual report on Form 10-K. See “Risk Factors” elsewhere in this annual report on Form 10-K for a discussion of certain risks associated with our business. The following discussion contains forward-looking statements. The forward-looking statements do not include the potential impact of any mergers, acquisitions, divestitures or other events that may be announced after the date hereof.

Overview

We develop and provide solutions for global enterprises to build, secure and accelerate their applications and digital experiences through our massively distributed global infrastructure, which underpins our security, delivery and cloud computing solutions, and is central to our financial success. The key factors that influence our financial success are our ability to build on recurring revenue commitments across our security, delivery and cloud computing product portfolios, increase traffic on our network, continue to develop, scale and successfully bring to market our compute platform, including AIC and compute-to-edge solutions, that meet the needs of professional users and enterprises, including with respect to reliability, effectively manage the prices we charge for our solutions considering the market dynamics on our cost structure driven by hyperscalers, continuously develop new and existing products and appropriately manage our capital spending and other operational expenses. The purpose of this discussion and analysis section is to provide material information relevant to an assessment of our financial condition and results of operations from management’s perspective, including to describe and explain key trends, events and other factors that impacted our reported results and that are likely to impact our future performance.

Revenue

We primarily derive revenue from the sale of services to customers pursuant to contracts having terms of one year or longer, which allows us to have a consistent and predictable base level of revenue. Services included in our contracts consist of security solutions, the delivery of content, applications and software over the internet, cloud computing solutions and professional services. In addition to a base level of revenue, we are also dependent on our ability to increase our product offerings and to cross-sell additional services to our new and existing customers, particularly for our security and cloud

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computing solutions portfolios. Our revenue is also impacted by customer renewals and the pricing for such renewals, the rate of adoption and timing of customer offerings, variability of one-time events, usage of cloud computing services and the amount of traffic we serve on our network. Geopolitical, economic and other developments that impact our customers' businesses can also impact our ability to attract new customers or continue to cross-sell additional services to existing customers and traffic levels for customers with variable usage. Over the longer term, our ability to continually develop and expand our product portfolio, to successfully bring those products to market and to effectively manage the prices we charge for our solutions considering the market dynamics on our cost structure driven by hyperscalers, are key factors impacting our revenue growth.

We have observed the following trends related to our revenue in recent years:

•Increased sales of our security solutions, led by application security solutions and our microsegmentation solutions, and increased sales of our cloud computing solutions, attributable to enhanced services on our compute platform, and growth in our Cloud Infrastructure Services, have made a significant contribution to revenue growth. Our security and cloud computing solutions continue to contribute to a large portion of revenue. We plan to continue to invest in these areas with a focus on higher growth security products and Cloud Infrastructure Services to further advance our product portfolios and sales capabilities.

•Traffic growth on our network has improved, but remains moderated as compared to prior years. We, and the industry more broadly, are seeing growth at a slower pace than we have experienced in the past. In particular, customers in verticals such as media and gaming have optimized their traffic to manage through underlying business challenges at a time of global macroeconomic and geopolitical headwinds. Some of our customers' businesses have been impacted by these headwinds, and as a result, they may continue to reduce their spending or optimize their traffic, which would reduce traffic on our network and revenue. However, we are seeing incremental traffic from contracts acquired as part of our recent asset acquisitions. We expect these traffic growth trends to continue in 2026.

•The prices paid by some of our delivery and security customers have declined in recent years at contract renewal due to competition, which negatively impacts our revenue growth rates. We have been able to mitigate some of the negative impacts to our revenue growth rates by upselling incremental solutions to our existing customers. We continue to take steps upon contract renewals to sign customers to multi-year contracts and to optimize how we charge customers to maintain alignment between customer traffic volumes, significant cost increases we have experienced due to market dynamics driven by hyperscalers and unit pricing.

•Revenue from our international operations continues to grow, particularly from new customer acquisition and cross-selling of incremental solutions. Because we publicly report in U.S. dollars, our reported revenue results are negatively impacted when the U.S. dollar strengthens and benefit when the U.S. dollar weakens.

•We have experienced variations in certain types of revenue from quarter-to-quarter. These quarterly variations in revenue are attributable to, among other things, the timing of large customer contract renewals; the frequency and timing of purchases of custom solutions or licensed software; the nature and timing of software and gaming releases by our customers; holiday season activity; and whether there are large live sporting or other events or situations that impact the amount of media traffic on our network.

Expenses

Our level of profitability is impacted by our expenses, including direct costs to support our revenue such as bandwidth and co-location costs, which includes energy to power our network. We have observed the following trends related to our profitability in recent years:

•Co-location costs are a significant portion of our cost of revenue. As we continue to build out our new compute locations to provide us with the ability to scale our platform, we have experienced a significant increase in our co-location costs due to the market dynamics driven by the hyperscalers. We have entered into, and expect to continue to enter into, longer term leases that include certain financial commitments. The costs of the financial commitments are expensed ratably over the lease term, and, as a result, in some cases, we are incurring costs in advance of these compute locations being fully utilized. We continue to improve our internal-use software and remain disciplined in managing our hardware deployments, which enables us to use servers more efficiently. We will need to continue to effectively manage our co-location costs to maintain or improve current levels of profitability.

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•Network bandwidth costs are also a significant portion of our cost of revenue. We have been able to manage these costs through investment in internal-use software development to improve the performance and efficiency of our network and, more recently, improved pricing on contract renewals with our bandwidth providers. We will need to continue to focus on effectively managing our bandwidth costs to maintain or improve current levels of profitability.

•Network build-out and supporting service costs represent another significant portion of our cost of revenue. These costs include maintenance and supporting services, as well as partner program costs, incurred as we continue to build out our compute platform and maintain our global network, and costs of third-party cloud providers used for some of our operations. We have seen some of these costs increase in recent years as a result of our network expansion, and particularly the build out of our compute platform. While we have previously experienced increased costs from third-party cloud providers, we have been able to manage those costs by migrating to our own compute solutions. We will need to continue to effectively manage our network build-out and supporting service costs in an effort to control costs.

•Our employees are core to the operations of our business, and payroll and related costs, including stock-based compensation, is our largest expense. It is important to the success of our operations that we offer competitive compensation packages. However, we are focused on remaining disciplined in allocating our resources to support our faster growing security and cloud computing solutions, including maintaining operational efficiencies to mitigate the rising cost of talent. Over the past few years, we redesigned some of our compensation programs by shifting certain plans from a cash-based to stock-based program, such as our employer 401(k) match program in 2025. These programs are designed to better align employee incentives with the interests of our stockholders, which has increased our stock-based compensation.

•Depreciation expense related to our network equipment also contributes to our overall expense levels. In recent years, we have invested in our network, particularly as part of building out our compute infrastructure, which increased our capital expenditures and resulting depreciation expense. We plan to continue investing in our faster growing Cloud Infrastructure Services, including support for a new enterprise cloud computing customer and our new AIC. With the build out of our compute platform, we are experiencing a significant increase in server and memory costs due to market dynamics driven by hyperscalers. These cost increases will increase our future capital expenditures and resulting depreciation expense.

•Growth in our international operations incrementally increases our exposure to foreign currency fluctuations. Because we publicly report in U.S. dollars, our expenses are positively impacted when the U.S. dollar strengthens and are negatively impacted when the U.S. dollar weakens.

Recent Acquisitions

We acquired Fermyon in November 2025. With this acquisition we plan to deepen the integration between the edge functions platform and our performance and security products. The resulting cloud computing platform aims to make it even faster and easier for developers to build, deploy and secure applications at the edge that outperform cloud-native applications, for less money, the same way they can in core data centers today.

We acquired certain customer contracts from Edgio, Inc. ("Edgio") in December 2024 as part of a bankruptcy process. This acquisition is intended to further strengthen our existing delivery and other businesses as we transition the acquired customers to our platform and offer our portfolio of other services to them. We also acquired Noname Security in June 2024. Noname Security is intended to expand our existing API Security offering by providing more flexible deployment options, extensive vendor integrations and enhanced attack analysis. We believe this acquisition will accelerate our ability to meet increasing customer and market demand.

We acquired certain customer contracts from Lumen Technologies, Inc. ("Lumen") in October 2023 and from StackPath, LLC ("StackPath") in August 2023. These acquisitions are intended to further strengthen our existing delivery and other businesses as we transition the acquired customers to our platform and offer our portfolio of other services to them. We also acquired Neosec in May 2023, which is intended to complement our application and API security portfolio by extending its visibility into the rapidly growing API threat landscape, and StorageOS, Inc. ("StorageOS"), also known as Ondat, in March 2023, which is intended to strengthen our compute offerings.

Revenue and earnings generated from these acquisitions are included in our financial results since the dates of the acquisitions, but were not material. However, delivery revenue was positively impacted by customer contracts acquired from Edgio, Lumen and Stackpath. Additionally, of note, we added approximately 200 employees from the acquisition of Noname Security.

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Global Economic Conditions

Global macroeconomic and geopolitical conditions continue to impact our customers, as well as our business and revenue growth rates. We, along with our customers, continue to manage through an uncertain period of fluctuating inflation, regulatory policies and resources that may negatively impact business, economic and political uncertainty, decreased consumer confidence and pressure on prices during contract renewals, uncertain energy supplies, heightened geopolitical tensions and conflict, potential for supply chain disruptions, changes in legislation and regulations, including U.S. and international tax laws, volatility and increasing tensions related to changing trade policies, including announced or expected tariffs, fluctuations in foreign exchange rates and elevated interest rates. To the extent these macroeconomic conditions continue, the impact may adversely affect our business, operations and financial results.

Results of Operations

The following sets forth, as a percentage of revenue, consolidated statements of income data for the years indicated:

202520242023
Revenue100%100%100%
Costs and operating expenses:
Cost of revenue (exclusive of amortization of acquired intangible assets shown below)414140
Research and development121211
Sales and marketing141414
General and administrative161616
Amortization of acquired intangible assets322
Restructuring charge121
Total costs and operating expenses (1)878783
Income from operations (1)131317
Interest and marketable securities income, net231
Interest expense(1)(1)
Other expense, net
Income before provision for income taxes (1)141517
Provision for income taxes(4)(2)(3)
Gain from equity method investment
Net income (1)11%13%14%

(1) Amounts may not foot due to rounding.

Revenue

Revenue by solution category during the periods presented was as follows (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20252024% Change% Change at Constant Currency20242023% Change% Change at Constant Currency
Security$2,243,404$2,042,66110%9%$2,042,661$1,765,26716%16%
Delivery1,256,7211,318,131(5)(5)1,318,1311,542,434(15)(14)
Cloud computing708,050630,3761212630,376504,2192525
Total revenue$4,208,175$3,991,1685%5%$3,991,168$3,811,9205%5%

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The increases in our revenue in 2025 as compared to 2024, and 2024 as compared to 2023, were primarily the result of continued growth in sales of our security and cloud computing solutions, partially offset by a decline in revenue from our delivery solutions due to downward pricing of renewals.

The increases in security solutions revenue for 2025 as compared to 2024, and 2024 as compared to 2023, were due to growth of sales in key products in our security solutions portfolio, including our API security, web application and Guardicore segmentation solutions.

The decreases in delivery solutions revenue for 2025 as compared to 2024, and 2024 as compared to 2023, were due to downward pricing of contract renewals. Additionally, we believe macroeconomic headwinds are causing some customers to increase their focus on cost optimization, which negatively impacted traffic on our network and had a negative impact on delivery revenue. In 2024, these headwinds caused a large social media customer to increase their focus on cost optimization and "do-it-yourself" solutions, which additionally reduced traffic on our network. The decrease for 2025 as compared to 2024 was partially offset by incremental revenue from contracts acquired as part of our asset acquisitions, such as Edgio in December 2024.

The increase in cloud computing solutions revenue in 2025 as compared to 2024 was due to growth in Cloud Infrastructure Services, which includes compute, storage, cloud-native and networking solutions, along with the Akamai EdgeWorkers serverless products and partner solutions running on our compute platform. The increase in cloud computing revenue in 2024 as compared to 2023 was due to growth in sales of Cloud Infrastructure Services, as well as cloud optimization solutions, to new and existing customers.

Revenue derived in the U.S. and internationally during the periods presented is as follows (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20252024% Change% Change at Constant Currency20242023% Change% Change at Constant Currency
U.S.$2,139,173$2,075,5333%3%$2,075,533$1,968,7795%5%
As a percentage of revenue51%52%52%52%
International2,069,0021,915,635871,915,6351,843,1414%5
As a percentage of revenue49%48%48%48%
Total revenue$4,208,175$3,991,1685%5%$3,991,168$3,811,9205%5%

For each of the years ended December 31, 2025, 2024 and 2023, no single country outside of the U.S. accounted for 10% or more of revenue. Changes in foreign currency exchange rates positively impacted our revenue by $13.7 million in 2025 as compared to 2024, and negatively impacted our revenue by $22.5 million in 2024 as compared to 2023.

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Cost of Revenue

Cost of revenue consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20252024% Change20242023% Change
Co-location costs$349,191$308,31413%$308,314$256,06220%
Bandwidth fees192,875233,100(17)233,100228,0382
Network build-out and supporting services236,644193,60722193,607215,557(10)
Payroll and related costs340,991334,2152334,215325,8513
Acquisition-related costs3,190(100)
Stock-based compensation, including amortization of prior capitalized amounts123,617100,70523100,70573,78636
Depreciation of network equipment328,221282,10616282,106231,50022
Amortization of internal-use software155,974168,746(8)168,746177,079(5)
Total cost of revenue$1,727,513$1,620,7937%$1,620,793$1,511,0637%
As a percentage of revenue41%41%41%40%

The increase in cost of revenue for 2025 as compared to 2024 was primarily due to:

•co-location costs and depreciation of network equipment as a result of investment in our network, particularly as we build out our compute platform to support future growth and scalability;

•network build-out and supporting services, particularly due to our partner program costs related to our cloud computing solutions; and

•payroll and related costs, including stock-based compensation, as a result of headcount growth, annual merit increases and increased achievement of our performance-based compensation plans; additionally, stock-based compensation increased due to the shift in some of our compensation programs from cash-based to stock-based for certain employees, including our employer 401(k) match program, effective in 2025, which partially offset the increase in payroll and related costs.

These increases were partially offset by lower bandwidth fees, resulting from improved pricing and operational efficiencies on our network.

The increase in cost of revenue for 2024 as compared to 2023 was primarily due to:

•co-location costs and depreciation of network equipment as a result of investment in our network, particularly as we are building out our compute platform to support future growth and scalability; and

•payroll and related costs, including stock-based compensation, as a result of headcount growth from our strategic initiatives and annual merit increases, as well as the shift in timing of our performance-based compensation. Additionally, stock-based compensation increased due to a shift in our compensation programs from cash-based to stock-based for certain employees.

The increase in cost of revenue for 2024 as compared to 2023 was partially offset by lower network build-out and supporting services due to a decrease in third-party cloud costs as we have migrated third-party cloud services onto our own compute platform and have focused on optimizing third-party cloud spending.

During 2026, we expect our cost of revenue to increase as compared to 2025. In particular, our co-location costs, bandwidth fees, depreciation of network equipment and amortization of internal-use software is expected to increase as we continue to invest in our compute platform to provide us the ability to scale. Due to the market dynamics driven by the hyperscalers, we are also experiencing price increases for co-location, server and memory costs, which will increase our co-location costs and depreciation of network equipment. Additionally, we expect network build-out and supporting services to increase due to our partner programs to support the growth of our cloud computing solutions.

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Research and Development Expenses

Research and development expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20252024% Change20242023% Change
Payroll and related costs$601,288$562,2867%$562,286$494,80314%
Stock-based compensation169,404152,11411152,114123,89623
Capitalized salaries and related costs(286,816)(272,320)5(272,320)(239,928)14
Acquisition-related costs721(100)
Other expenses29,68428,796328,79626,5568
Total research and development$513,560$470,8769%$470,876$406,04816%
As a percentage of revenue12%12%12%11%

The increase in research and development expenses for 2025 as compared to 2024 was primarily due to higher payroll and related costs, including stock-based compensation, as a result of headcount growth from our strategic initiatives, annual merit increases and the increased achievement of our performance-based compensation plans. Additionally, stock-based compensation increased due to a shift in our employer 401(k) match program from cash-based to stock-based, effective in 2025, which partially offset the increase in payroll and related costs.

The increase in research and development expenses for 2024 as compared to 2023 was primarily due to higher payroll and related costs, including stock-based compensation, as a result of headcount growth from our strategic initiatives and annual merit increases, as well as the shift in timing of our performance-based compensation. These increases were partially offset by increases in capitalized salaries and related costs as we had additional resources focused on development activities related to our platform and solutions.

Research and development costs are expensed as incurred, other than certain internal-use software development costs eligible for capitalization. Capitalized development costs consist of payroll and related costs for personnel and external consulting expenses involved in the development of internal-use software used to deliver our services and operate our network. For the years ended December 31, 2025, 2024 and 2023, we capitalized $114.8 million, $99.6 million and $77.0 million, respectively, of stock-based compensation. These capitalized internal-use software development costs are amortized to cost of revenue over their estimated useful lives, ranging from two to ten years based on the software developed and its expected useful life.

We expect our research and development costs to increase in 2026, in particular payroll and related costs, including stock-based compensation, in support of our faster growing security and cloud computing solutions. We also expect stock-based compensation to increase in 2026 as a result of a new stock-based retirement program effective in 2026. However, we plan to continue to carefully manage costs in an effort to manage our operating margins.

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Sales and Marketing Expenses

Sales and marketing expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20252024% Change20242023% Change
Payroll and related costs$388,555$393,584(1)%$393,584$376,3055%
Stock-based compensation90,19877,5931677,59366,45317
Marketing programs and related costs57,20253,893653,89359,151(9)
Acquisition-related costs1,387(100)
Other expenses38,34731,7112131,71129,9306
Total sales and marketing$574,302$556,7813%$556,781$533,2264%
As a percentage of revenue14%14%14%14%

The increase in sales and marketing expenses for 2025 as compared to 2024 was primarily due to higher stock-based compensation as a result of the increased achievement of our performance-based compensation plans and a shift in our employer 401(k) match program from cash-based to stock-based, effective in 2025. Other expenses also increased as a result of professional service fees associated with our go-to-market transformation initiative.

The increase in sales and marketing expenses for 2024 as compared to 2023 was due to higher payroll and related costs, including stock-based compensation, as a result of annual merit increases and employees acquired through the Noname Security acquisition, as well as the shift in timing of our performance-based compensation. These increases were partially offset by a reduction in marketing programs and related costs as a result of the timing of events and advertising campaigns.

During 2026, we expect our sales and marketing expenses to increase as compared to 2025, in particular payroll and related costs, including stock-based compensation, primarily due to our reinvestment in headcount as part of our go-to-market strategy to drive acquisition of new customers for our faster growing security and cloud computing solutions. However, we plan to continue to carefully manage costs in an effort to manage our operating margins.

General and Administrative Expenses

General and administrative expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20252024% Change20242023% Change
Payroll and related costs$232,671$225,6873%$225,687$218,2723%
Stock-based compensation122,624102,49420102,49494,3169
Depreciation and amortization66,90966,184166,18465,8171
Facilities-related costs86,08186,671(1)86,67190,061(4)
Provision for doubtful accounts6,3243,919613,9191,649138
Acquisition-related costs3,2477,502(57)7,5028,050(7)
Software and related service costs70,36156,5572456,55755,7142
Other expenses68,52272,771(6)72,77166,9729
Total general and administrative$656,739$621,7856%$621,785$600,8513%
As a percentage of revenue16%16%16%16%

The increase in general and administrative expenses for 2025 as compared to 2024 was primarily due to higher stock-based compensation as a result of the increased achievement of our performance-based compensation plans, an increase in the number of participants in the equity compensation program, as well as a shift in our employer 401(k) match program from cash-based to stock-based effective in 2025, which increased stock-based compensation and partially offset the increase in payroll and related costs. Additionally, software and related service costs increased as we transition to and expand usage of cloud-based

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applications to support our operations.

The increase in general and administrative expenses for 2024 as compared to 2023 was primarily due to higher payroll and related costs, including stock-based compensation, as a result of annual merit increases and the shift in timing of our performance-based compensation. Additionally, other expenses increased due to professional service fees to support our business. These increases were partially offset by decreased facilities-related costs as we exited certain facilities in connection with our FlexBase program.

During 2026, we expect our general and administrative expenses to increase as compared to 2025, to support the operations of the business. In particular, we expect stock-based compensation to increase in 2026 as a result of a new stock-based retirement program effective in 2026. However, we plan to continue to carefully manage costs in an effort to manage our operating margins.

Amortization of Acquired Intangible Assets

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20252024% Change20242023% Change
Amortization of acquired intangible assets$111,066$92,08121%$92,081$66,75138%
As a percentage of revenue3%2%2%2%

The increase in amortization of acquired intangible assets for 2025 as compared to 2024, and 2024 as compared to 2023, was the result of amortization of acquired intangible assets related to our recent acquisitions. Based on acquired intangible assets as of December 31, 2025, future amortization is expected to be $100.2 million, $85.6 million, $79.0 million, $74.0 million and $66.7 million for the years ending December 31, 2026, 2027, 2028, 2029 and 2030, respectively.

Restructuring Charge

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20252024% Change20242023% Change
Restructuring charge$58,051$95,441(39)%$95,441$56,64368%
As a percentage of revenue1%2%2%1%

The restructuring charge in 2025 was primarily driven by management's commitment to an action to restructure certain parts of the company to align investments and simplify organizational structure to long-term growth priorities. The charge included severance and related expenses for certain headcount reductions, as well as impairments of acquired intangible assets and capitalized internal-use software. We do not expect to incur material additional charges related to this action.

The restructuring charge in 2024 was primarily driven by management's commitment to an action with the primary intent to redeploy resources to support our strategic investments and as a result of our completed acquisitions. The restructuring charge included severance and related expenses for certain headcount reductions, as well as impairments of acquired intangible assets and capitalized internal-use software. We do not expect to incur material additional charges related to this action.

The restructuring charge in 2023 was primarily driven by our FlexBase program as we exited certain facilities that were no longer needed, resulting in impairments of right-of-use-assets and leasehold improvements. We do not expect to incur material additional charges related to the FlexBase program. Additionally, the restructuring charge in 2023 included the result of certain actions initiated in the first quarter of 2023. Management's commitment to an action to restructure certain parts of the company was to enable the prioritization of investments in the fastest growing areas of the business. The restructuring charge for this action includes severance and related expenses for certain headcount reductions. We do not expect to incur material additional charges related to these actions.

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Non-Operating Income (Expense)

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20252024% Change20242023% Change
Interest and marketable securities income, net$70,808$100,280(29)%$100,280$45,194122%
As a percentage of revenue2%3%3%1%
Interest expense$(30,759)$(27,117)13%$(27,117)$(17,709)53%
As a percentage of revenue(1)%(1)%(1)%%
Other expense, net$(4,588)$(19,561)(77)%$(19,561)$(12,296)59%
As a percentage of revenue%%%%

Interest and marketable securities income, net primarily consists of interest earned on invested cash and marketable securities balances and income and losses on mutual funds that are associated with our employee non-qualified deferred compensation plan. The decrease to interest and marketable securities income, net for 2025 as compared to 2024, was due to a reduction of cash and marketable securities balances and re-positioning our investments to cash equivalents, yielding lower interest, in 2025 in order to repay our $1,150.0 million convertible senior notes that became due in May 2025. This decrease was partially offset by interest earned as a result of purchases of new marketable securities with the proceeds of our convertible senior notes that were issued in May 2025. The increase to interest and marketable securities income, net for 2024 as compared to 2023, was the result of increased cash, cash equivalents and marketable securities balances received from our August 2023 issuance of $1,265.0 million in par value of convertible senior notes due 2029 and higher interest rates, as well as increased gains associated with the non-qualified deferred compensation plan.

Interest expense is related to our debt transactions, which are described in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K. The increase to interest expense for 2025 as compared to 2024 was primarily due to the May 2025 issuance of $1,725.0 million in par value of convertible senior notes due 2033. The increase to interest expense for 2024 as compared to 2023 was primarily due to the August 2023 issuance of $1,265.0 million in par value of convertible senior notes due 2029.

Other expense, net primarily represents net foreign exchange gains and losses mainly due to foreign exchange rate fluctuations on the remeasurement of monetary assets and liabilities that are not denominated in the functional currency as well as other non-operating expense and income items. Other expense, net for 2025 and 2024 also includes a net gain of $9.4 million and impairments of $5.1 million, respectively, from cost method investments. Other expense, net may fluctuate in the future based on changes in foreign currency exchange rates or other events.

Provision for Income Taxes

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20252024% Change20242023% Change
Provision for income taxes$150,374$82,09583%$82,095$106,373(23)%
As a percentage of revenue4%2%2%3%
Effective income tax rate25%14%14%16%

The increase in the provision for income taxes for 2025 as compared to 2024 was mainly due to a shortfall in the tax benefit related to stock-based compensation, the benefit from an intercompany sale of intellectual property in 2024 that did not recur in 2025, revaluation of deferred tax assets and a decrease in the benefit of U.S. federal and state research and development credits.

The decrease in the provision for income taxes for 2024 as compared to 2023 was mainly due to the benefit from an intercompany sale of intellectual property, an increase in the excess tax benefit related to stock-based compensation, lower profitability and an increase in the benefit of U.S. federal and state research and development credits. These amounts were partially offset by a decrease in foreign income taxed at lower rates, an increase in non-deductible transfer pricing and an increase in certain tax reserves.

For the year ended December 31, 2025, our effective income tax rate was higher than the federal statutory tax rate due to non-deductible stock-based compensation, revaluation of deferred tax assets and a shortfall in the tax benefit related to stock-

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based compensation. These amounts were partially offset by foreign income taxed at lower rates and the benefit of U.S. federal, state and foreign research and development credits.

For the year ended December 31, 2024, our effective income tax rate was lower than the federal statutory tax rate due to the benefit of U.S. federal, state and foreign research and development credits, an intercompany sale of intellectual property, foreign income taxed at lower rates and the excess tax benefit related to stock-based compensation. These amounts were partially offset by non-deductible stock-based compensation and non-deductible transfer pricing.

For the year ended December 31, 2023, our effective income tax rate was lower than the federal statutory tax rate due to foreign income taxed at lower rates and the benefit of U.S. federal, state and foreign research and development credits. These amounts were partially offset by non-deductible stock-based compensation and the tax on global intangible low-taxed income.

Our effective income tax rate may fluctuate between fiscal years and from quarter to quarter due to items arising from discrete events, such as tax benefits from the settlement of employee equity awards, tax law changes and settlements of tax audits and assessments. Our effective income tax rate is also impacted by, and may fluctuate in any given period because of, the composition of income in foreign jurisdictions where tax rates differ depending on the local statutory rates. The OECD and participating OECD member countries continue to work toward the enactment of a 15% global minimum corporate tax rate for large multinational enterprise groups, also known as "Pillar Two." Many of the participating countries have enacted legislation that became effective beginning in 2024, while other countries continue to work on defining the underlying rules and administrative procedures. Although the enactment and effective legislation in many countries was applicable to us beginning on January 1, 2024, and increased our effective income tax rate, the increase did not have a material impact on our overall results of operations or cash flows.

In July 2025, the One Big Beautiful Bill Act ("OBBBA") was enacted into law. The OBBBA includes significant provisions, such as the permanent extension of certain expiring provisions of the Tax Cuts and Jobs Act, modifications to the international tax framework and the restoration of favorable tax treatment for certain business provisions. The legislation has multiple effective dates, with certain provisions effective in 2025 and others to be implemented through 2027. The OBBBA did not have a material impact on our consolidated financial statements for the annual period ending December 31, 2025.

Gain from Equity Method Investment

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20252024% Change20242023% Change
Gain from equity method investment$$%$$(1,475)100%
As a percentage of revenue%%%%

The gain from equity method investment relates to our investment with MUFG in a joint venture, GO-NET. GO-NET intended to operate a blockchain-based online payment network. However, GO-NET operations were suspended in February 2022, and ultimately liquidated in August 2023. The gain from equity method investment in 2023 was related to the liquidation and disbursement of our portion of GO-NET's remaining assets, which were previously impaired. We do not expect additional activity related to this investment.

Use of Non-GAAP Financial Measures

In addition to providing financial measurements based on generally accepted accounting principles in the United States of America ("GAAP") we provide additional financial metrics that are not prepared in accordance with GAAP ("non-GAAP financial measures"). Management uses non-GAAP financial measures, in addition to GAAP financial measures, to understand and compare operating results across accounting periods, for financial and operational decision making, for planning and forecasting purposes, to measure executive compensation and to evaluate our financial performance. These non-GAAP financial measures are non-GAAP income from operations, non-GAAP operating margin, non-GAAP net income, non-GAAP net income per diluted share, Adjusted EBITDA, Adjusted EBITDA margin and impact of foreign currency exchange rates, as discussed below.

Management believes that these non-GAAP financial measures reflect our ongoing business in a manner that allows for meaningful comparisons and analysis of trends in the business, as they facilitate comparison of financial results across accounting periods and to those of our peer companies. Management also believes that these non-GAAP financial measures enable investors to evaluate our operating results and future prospects in the same manner as management. These non-GAAP

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financial measures may exclude expenses and gains that may be unusual in nature, infrequent or not reflective of our ongoing operating results.

The non-GAAP financial measures do not replace the presentation of our GAAP financial measures and should only be used as a supplement to, not as a substitute for, our financial results presented in accordance with GAAP.

The non-GAAP adjustments, and our basis for excluding them from non-GAAP financial measures, are outlined below:

•Amortization of acquired intangible assets – We have incurred amortization of intangible assets, included in our GAAP financial statements, related to various acquisitions we have made. The amount of an acquisition's purchase price allocated to intangible assets and term of its related amortization can vary significantly and is unique to each acquisition; therefore, we exclude amortization of acquired intangible assets from our non-GAAP financial measures to provide investors with a consistent basis for comparing pre- and post-acquisition operating results.

•Stock-based compensation and amortization of capitalized stock-based compensation – Stock-based compensation is an important aspect of the compensation paid to our employees which includes long-term incentive plans to encourage retention, performance-based plans to encourage achievement of specified financial targets, short-term incentive awards with a one year vest and shares issued as part of a retirement savings program. The grant date fair value of the stock-based compensation awards varies based on the stock price at the time of grant, varying valuation methodologies, subjective assumptions and the variety of award types. This makes the comparison of our current financial results to previous and future periods difficult to interpret; therefore, we believe it is useful to exclude stock-based compensation and amortization of capitalized stock-based compensation from our non-GAAP financial measures in order to highlight the performance of our core business and to be consistent with the way many investors evaluate our performance and compare our operating results to peer companies.

•Acquisition-related costs – Acquisition-related costs include transaction fees, advisory fees, due diligence costs and other direct costs associated with strategic activities, as well as certain additional compensation costs payable to employees acquired from the Linode acquisition if employed for a certain period of time. The additional compensation cost was initiated by and determined by the seller and is in addition to normal levels of compensation, including retention programs, offered by Akamai. Acquisition-related costs are impacted by the timing and size of the acquisitions, and we exclude acquisition-related costs from our non-GAAP financial measures to provide a useful comparison of operating results to prior periods and to peer companies because such amounts vary significantly based on the magnitude of our acquisition transactions and do not reflect our core operations.

•Restructuring charge – We have incurred restructuring charges from programs that have significantly changed either the scope of the business undertaken by us or the manner in which that business is conducted. These charges include severance and related expenses for workforce reductions, impairments of long-lived assets that will no longer be used in operations (including acquired intangible assets, right-of-use assets, other facility-related property and equipment and internal-use software) and termination fees for any contracts cancelled as part of these programs. We exclude these items from our non-GAAP financial measures when evaluating our continuing business performance as such items vary significantly based on the magnitude of the restructuring action and do not reflect expected future operating expenses. In addition, these charges do not necessarily provide meaningful insight into the fundamentals of current or past operations of our business.

•Amortization of debt issuance costs and capitalized interest expense – The issuance costs of our convertible senior notes are amortized to interest expense and are excluded from our non-GAAP results because management believes the non-cash amortization expense is not representative of ongoing operating performance.

•Gains and losses on cost method investments – We have recorded gains and losses from the disposition, changes to fair value and impairment of cost method investments. We believe excluding these amounts from our non-GAAP financial measures is useful to investors as the types of events giving rise to these gains and losses are not representative of our core business operations and ongoing operating performance.

•Legal settlements – We have incurred losses related to the settlement of legal matters. We believe excluding these amounts from our non-GAAP financial measures is useful to investors as the types of events giving rise to them are not representative of our core business operations.

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•Gains and losses from equity method investment – We record income or losses on our share of earnings and losses from our equity method investment, and any gains from returns of investments or impairments. We exclude such income and losses because we do not have direct control over the operations of the investment and the related income and losses are not representative of our core business operations.

•Income tax effect of non-GAAP adjustments and certain discrete tax items – The non-GAAP adjustments described above are reported on a pre-tax basis. The income tax effect of non-GAAP adjustments is the difference between GAAP and non-GAAP income tax expense. Non-GAAP income tax expense is computed on non-GAAP pre-tax income (GAAP pre-tax income adjusted for non-GAAP adjustments) and excludes certain discrete tax items (such as the impact of intercompany sales of intellectual property related to our acquisitions), if any. We believe that applying the non-GAAP adjustments and their related income tax effect allows us to highlight income attributable to our core operations.

The following table reconciles GAAP income from operations to non-GAAP income from operations and non-GAAP operating margin for the years ended December 31, 2025, 2024 and 2023 (in thousands):

202520242023
Income from operations$566,944$533,411$637,338
Amortization of acquired intangible assets111,06692,08166,751
Stock-based compensation459,402393,378328,467
Amortization of capitalized stock-based compensation and capitalized interest expense50,89042,91032,981
Restructuring charge58,05195,44156,643
Acquisition-related costs3,2477,50213,345
Legal settlements4,0002,500
Non-GAAP income from operations$1,253,600$1,167,223$1,135,525
GAAP operating margin13%13%17%
Non-GAAP operating margin30%29%30%

The following table reconciles GAAP net income to non-GAAP net income for the years ended December 31, 2025, 2024 and 2023 (in thousands):

202520242023
Net income$452,031$504,918$547,629
Amortization of acquired intangible assets111,06692,08166,751
Stock-based compensation459,402393,378328,467
Amortization of capitalized stock-based compensation and capitalized interest expense50,89042,91032,981
Restructuring charge58,05195,44156,643
Acquisition-related costs3,2477,50213,345
Legal settlements4,0002,500
Amortization of debt issuance costs7,0536,5215,341
(Gain) loss on cost method investments, net(9,370)5,066(311)
Gain from equity method investment(1,475)
Income tax effect of above non-GAAP adjustments and certain discrete tax items(89,945)(154,735)(89,364)
Non-GAAP net income$1,046,425$995,582$960,007

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The following table reconciles GAAP net income per diluted share to non-GAAP net income per diluted share for the years ended December 31, 2025, 2024 and 2023 (in thousands, except per share data):

202520242023
GAAP net income per diluted share$3.07$3.27$3.52
Adjustments to net income:
Amortization of acquired intangible assets0.760.600.43
Stock-based compensation3.122.552.11
Amortization of capitalized stock-based compensation and capitalized interest expense0.350.280.21
Restructuring charge0.390.620.36
Acquisition-related costs0.020.050.09
Legal settlements0.030.02
Amortization of debt issuance costs0.050.040.03
(Gain) loss on cost method investments, net(0.06)0.03
Gain from equity method investment(0.01)
Income tax effect of above non-GAAP adjustments and certain discrete tax items(0.61)(1.00)(0.58)
Adjustment for shares (1)0.030.02
Non-GAAP net income per diluted share (2)$7.12$6.48$6.20
Shares used in GAAP per diluted share calculations147,023154,346155,397
Impact of benefit from note hedge transactions (1)(744)(574)
Shares used in non-GAAP per diluted share calculations (1)147,023153,602154,823

(1) Shares used in non-GAAP per diluted share calculations have been adjusted for the years ended December 31, 2024 and 2023, for the benefit of our note hedge transactions. During these periods, our average stock price was in excess of $95.10, which is the initial conversion price of our convertible senior notes which matured in May 2025. See further definition below.

(2) Amounts may not foot due to rounding.

Non-GAAP net income per diluted share is calculated as non-GAAP net income divided by weighted average diluted common shares outstanding. Diluted weighted average common shares outstanding are adjusted in non-GAAP per share calculations for the shares that would be delivered to us pursuant to the note hedge transactions entered into in connection with the issuances of our convertible senior notes. Under GAAP, shares delivered under hedge transactions are not considered offsetting shares in the fully-diluted share calculation until they are delivered. However, we would receive a benefit from the note hedge transactions and would not allow the dilution to occur, so management believes that adjusting for this benefit provides a meaningful view of operating performance. With respect to the convertible senior notes due in each of 2033, 2029 and 2027, and those that matured in 2025, unless our weighted average stock price is greater than $93.01, $126.31, $116.18 and $95.10, respectively, the initial conversion prices, there will be no difference between GAAP and non-GAAP diluted weighted average common shares outstanding.

We consider Adjusted EBITDA to be another important indicator of the operational strength and performance of our business and a good measure of our historical operating trends. Adjusted EBITDA eliminates items that we do not consider to be part of our core operations. We define Adjusted EBITDA as GAAP net income excluding the following items: interest and marketable securities income and losses; income taxes; depreciation and amortization of tangible and intangible assets; stock-based compensation; amortization of capitalized stock-based compensation; acquisition-related costs; restructuring charges; legal settlements; foreign exchange gains and losses; interest expense; amortization of capitalized interest expense; gains and losses on cost method investments; gains and losses from equity method investments; and other non-recurring or unusual items that may arise from time to time. Adjusted EBITDA margin represents Adjusted EBITDA stated as a percentage of revenue.

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The following table reconciles GAAP net income to Adjusted EBITDA and Adjusted EBITDA margin for the years ended December 31, 2025, 2024 and 2023 (in thousands):

202520242023
Net income$452,031$504,918$547,629
Amortization of acquired intangible assets111,06692,08166,751
Stock-based compensation459,402393,378328,467
Amortization of capitalized stock-based compensation and capitalized interest expense50,89042,91032,981
Restructuring charge58,05195,44156,643
Acquisition-related costs3,2477,50213,345
Legal settlements4,0002,500
Interest and marketable securities income, net(70,808)(100,280)(45,194)
Interest expense30,75927,11717,709
Provision for income taxes150,37482,095106,373
Depreciation and amortization548,012514,455472,035
(Gain) loss on cost method investments, net(9,370)5,066(311)
Gain from equity method investment(1,475)
Other expense, net13,95814,49512,607
Adjusted EBITDA$1,801,612$1,681,678$1,607,560
Net income margin11%13%14%
Adjusted EBITDA margin43%42%42%

Impact of Foreign Currency Exchange Rates

Revenue and earnings from our international operations have historically been an important contributor to our financial results. Consequently, our financial results have been impacted, and management expects they will continue to be impacted, by fluctuations in foreign currency exchange rates. For example, when the local currencies of our international subsidiaries weaken, generally our consolidated results stated in U.S. dollars are negatively impacted.

Because exchange rates are a meaningful factor in understanding period-to-period comparisons, management believes the presentation of the impact of foreign currency exchange rates on revenue and earnings enhances the understanding of our financial results and evaluation of performance in comparison to prior periods. The dollar impact of changes in foreign currency exchange rates presented is calculated by translating current period results using monthly average foreign currency exchange rates from the comparative period and comparing them to the reported amount. The percentage change at constant currency presented is calculated by comparing the prior period amounts as reported and the current period amounts translated using the same monthly average foreign currency exchange rates from the comparative period.

Liquidity and Capital Resources

To date, we have financed our operations primarily through public and private sales of debt and equity securities and cash generated by operations. As of December 31, 2025, our cash, cash equivalents and marketable securities, which are detailed in Note 3 to the consolidated financial statements included elsewhere in this annual report on Form 10-K, totaled $1.9 billion. We place our cash investments in instruments that meet high-quality credit standards, as specified in our investment policy. Our investment policy is also designed to limit the amount of our credit exposure to any one issue or issuer and seeks to manage these assets to achieve our goals of preserving principal and maintaining adequate liquidity at all times.

Changes in cash, cash equivalents and marketable securities are dependent upon changes in, among other things, working capital items such as accounts receivable, deferred revenue, accounts payable, various accrued expenses and operating lease obligations, as well as changes in our capital and financial structure due to common stock repurchases, debt repayments and issuances, purchases and sales of marketable securities, cash paid for acquisitions and similar events. We believe our strong balance sheet, cash position and access to funds available under our revolving credit facilities are important competitive

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differentiators that provide the financial stability and flexibility to enable us to continue to make investments at opportune times. We expect to continue to evaluate strategic investments to strengthen our business.

As of December 31, 2025, we had cash and cash equivalents of $382.7 million held in accounts outside the U.S. The U.S. Tax Cuts and Jobs Act establishes a territorial tax system in the U.S., which provides companies with the potential ability to repatriate earnings with minimal U.S. federal income tax impact. As a result, our liquidity is not expected to be materially impacted by the amount of cash and cash equivalents held in accounts outside the U.S.

Cash Provided by Operating Activities

For the Years Ended December 31,
(in thousands)202520242023
Net income$452,031$504,918$547,629
Non-cash reconciling items included in net income1,239,8111,048,595931,507
Changes in operating assets and liabilities(173,077)(34,342)(130,697)
Net cash provided by operating activities$1,518,765$1,519,171$1,348,439

The decrease in cash provided by operating activities for 2025 as compared to 2024 was due to timing of customer collections and severance payments occurring in 2025 related to our restructuring action in the third quarter of 2024, as well as higher income tax payments driven by intercompany sales of intellectual property. These decreases were partially offset by the shift of our employer 401(k) match program from cash-based to stock-based effective in 2025.

The increase in cash provided by operating activities for 2024 as compared to 2023 was due to increased collections from customers as a result of increased revenue and timing of customer collections. The increase was also due to the shift in our performance-based compensation program from cash-based to stock-based, which led to cash performance-based program payments in 2023 that did not recur in 2024.

Cash Used in Investing Activities

For the Years Ended December 31,
(in thousands)202520242023
Cash paid for business acquisitions, net of cash acquired$(55,112)$(434,066)$(106,171)
Cash paid for asset acquisitions(29,930)(132,835)(120,985)
Purchases of property and equipment and capitalization of internal-use software development costs(819,500)(685,267)(730,040)
Net marketable securities activity369,093449,516(884,973)
Other, net(5,294)3,973(6,069)
Net cash used in investing activities$(540,743)$(798,679)$(1,848,238)

The decrease in cash used in investing activities in 2025 as compared to 2024 was due to:

•the acquisitions of Noname Security and Edgio in 2024; and

•a decrease in net marketable securities activity, primarily due to higher purchases compared to maturities and sales, which resulted from net proceeds from our convertible senior notes activities.

These decreases were partially offset by higher purchases of property and equipment related to network expansion, primarily for our compute infrastructure.

The decrease in cash used in investing activities in 2024 as compared to 2023 was due to an increase in cash proceeds from net marketable securities activity to fund the acquisition of Noname Security in 2024 and a reduction of purchases of property and equipment related to our compute platform build-out. Additionally, cash used in investing activities in 2023 included an increase in purchases of marketable securities with the proceeds from our August 2023 issuance of convertible senior notes. These decreases were partially offset by cash paid for the acquisition of Noname Security.

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Cash (Used in) Provided by Financing Activities

For the Years Ended December 31,
(in thousands)202520242023
Net convertible senior notes activity$276,245$$1,101,028
Activity related to stock-based compensation(61,320)(111,663)(3,243)
Repurchases of common stock(799,963)(557,468)(654,046)
Other, net(2,998)(10,504)(360)
Net cash (used in) provided by financing activities$(588,036)$(679,635)$443,379

The decrease in cash used in financing activities in 2025 as compared to 2024 was primarily due to net convertible senior notes activity and decreased employee taxes paid in 2025 driven by a reduction in stock price. During 2025, we issued $1,725.0 million in par value of convertible senior notes and repaid $1,150.0 million in convertible senior notes which were due in May 2025. These decreases were partially offset by the increase in repurchases of our common stock as part of our share repurchase program.

The increase in cash used in financing activities in 2024 as compared to 2023 was due to the net proceeds received in 2023 from our convertible senior notes due 2029 that did not recur in 2024 and increased employee taxes paid in 2024 related to vesting of stock awards driven by the shift in our performance-based compensation program from cash-based to stock-based and an increase in stock price. These increases were partially offset by a reduction in repurchases of our common stock as part of our share repurchase program.

In October 2021, our board of directors authorized a $1.8 billion share repurchase program that was effective from January 2022 through December 2024. In May 2024, our board of directors authorized a new $2.0 billion share repurchase program, effective May 2024 through June 2027, which was in addition to amounts remaining under the January 2022 program. As of December 31, 2025, the January 2022 program was fully utilized and $1.2 billion remains available for repurchase on the May 2024 program. During 2025, 2024 and 2023, we repurchased 10.0 million, 5.6 million and 7.8 million shares of our common stock, respectively, at an average price per share of $79.77, $99.14 and $83.83, respectively. Our goals for the share repurchase programs are to offset the dilution created by our employee equity compensation programs over time and provide the flexibility to return capital to stockholders as business and market conditions warrant, while still preserving our ability to pursue other strategic opportunities. The timing and amount of any future share repurchases will be determined by our management based on its evaluation of market conditions and other factors.

Convertible Senior Notes

In May 2025, we issued $1,725.0 million in principal amount of convertible senior notes due 2033 and entered into related convertible note hedge and warrant transactions. We intend to use a portion of the net proceeds to repay at maturity our $1,150.0 million outstanding aggregate principal amount of convertible senior notes due in 2027. Additionally, we used a portion of the net proceeds to repay $250.0 million in borrowings made in April 2025 under our revolving credit agreement entered into in November 2022 ("2022 Credit Agreement") and for share repurchases.

As of December 31, 2025, we had $4,140.0 million of convertible senior notes outstanding that are senior unsecured obligations and bear interest payable semi-annually in arrears. These notes mature between September 2027 and May 2033. The terms of the notes and hedge and warrant transactions are discussed more fully in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K.

Revolving Credit Facilities

In January 2025, we entered into a $150.0 million uncommitted revolving credit agreement ("2025 Credit Agreement"). Any outstanding borrowings are secured by collateral, consisting primarily of available-for-sale marketable securities. The 2025 Credit Agreement does not expire but is cancellable at any time and any borrowings can be due on demand. Borrowings under the 2025 Credit Agreement will bear a specified interest rate, based on the Secured Overnight Financing Rate, and interest period at the time of the confirmed borrowing. There were no outstanding borrowings under the 2025 Credit Agreement as of December 31, 2025.

In November 2022, we entered into a $500.0 million, five-year revolving credit agreement ("2022 Credit Agreement"), which allows us to borrow up to $500.0 million at various interest rates and contains customary representations and warranties,

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affirmative and negative covenants and events of default. The 2022 Credit Agreement was amended in May 2025 to increase the aggregate revolving commitments from $500.0 million to $1.0 billion and to extend the expiration one year to November 2028. As of December 31, 2025, we were in compliance with all covenants. There were no outstanding borrowings under the 2022 Credit Agreement as of December 31, 2025.

The terms of the revolving credit agreements are discussed more fully in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K.

Operating Leases

We have entered into operating leases for real estate assets related to office space and co-location assets related to space or racks at co-location facilities and related equipment for our servers and other networking equipment. In addition, we have entered into an operating lease with a data center operator for space in the Virginia area that we contemporaneously subleased to an affiliate of a large social media customer. A portion of the space at the subleased data center commenced in 2025, with the remainder of the space commencing in January 2026. Both the lease payments and associated sublease income are expected to substantially offset each other.

As of December 31, 2025, the total obligation under these agreements was $1,865.9 million, of which $560.3 million is for the subleased data center. In the next 12 months, $342.5 million of the total obligation is payable, including $43.6 million for the subleased data center obligation. We have also executed additional operating leases of $465.1 million, of which substantially all are expected to commence in 2026, including $187.1 million for the subleased data center. The operating lease terms and maturities are discussed more fully in Note 12 to the consolidated financial statements included elsewhere in this annual report on Form 10-K.

Purchase Commitments

We enter into long-term agreements with network and internet service providers for bandwidth, as well as execute purchase orders for the purchase of goods or services in the ordinary course of business, which may contain minimum commitments. These minimum commitments may vary from period to period depending on the timing and length of contract renewals with our vendors, and on our plans for network expansion, including our expansion plans related to our compute locations.

Liquidity Outlook

Based on our present business plan, we expect our current cash, cash equivalents and marketable securities balances and our forecasted cash flows from operations to be sufficient to meet our foreseeable cash needs for at least the next 12 months. Our foreseeable cash needs, in addition to our recurring operating costs, include our expected capital expenditures, investments in information technology, potential strategic acquisitions, anticipated share repurchases, lease and purchase commitments and settlements of other liabilities.

Off-Balance Sheet Arrangements

We have entered into indemnification agreements with third parties, including vendors, customers, landlords, our officers and directors, stockholders of acquired companies, joint venture partners and third parties to which we license technology. Generally, these indemnification agreements require us to reimburse losses suffered by a third party due to various events, such as lawsuits arising from patent or copyright infringement or our negligence. These indemnification obligations are considered off-balance sheet arrangements in accordance with the authoritative guidance for guarantor’s accounting and disclosure requirements for guarantees, including indirect guarantees of indebtedness of others. See Note 13 to our consolidated financial statements included elsewhere in this annual report on Form 10-K for further discussion of these indemnification agreements. The fair value of guarantees issued or modified during 2025 and 2024 was determined to be immaterial.

Significant Accounting Policies and Estimates

See Note 2 to the consolidated financial statements included elsewhere in this annual report on Form 10-K for information regarding recent and newly adopted accounting pronouncements.

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Application of Critical Accounting Policies and Estimates

Overview

Our MD&A is based upon our consolidated financial statements, which have been prepared in accordance with GAAP. These principles require us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, cash flow and related disclosure of contingent assets and liabilities. Our estimates include those related to revenue recognition, accounts receivable and related reserves, valuation and impairment of marketable securities, capitalized internal-use software development costs, goodwill and acquired intangible assets, income tax reserves, impairment and useful lives of long-lived assets and stock-based compensation. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances at the time such estimates are made. Actual results may differ from these estimates. For a complete description of our significant accounting policies, see Note 2 to our consolidated financial statements included elsewhere in this annual report on Form 10-K.

Definitions

We define our critical accounting policies as those policies that require us to make subjective estimates and judgments about matters that are uncertain and are likely to have a material impact on our consolidated financial statements. Our estimates are based upon assumptions and judgments about matters that are highly uncertain at the time an accounting estimate is made and applied and require us to assess a range of potential outcomes.

Review of Critical Accounting Policies and Estimates

Revenue Recognition

Our contracts with customers sometimes include promises to transfer multiple services to a customer. Determining whether services are distinct performance obligations often requires the exercise of judgment by management. Advanced features that enhance a main product or service and are highly interrelated are generally not considered distinct; rather, they are combined with the service they relate to into one performance obligation. Different determinations related to combining services into performance obligations could result in differences in the timing and amount of revenue recognized in a period.

Determination of the standalone selling price ("SSP") for each distinct performance obligation in a contract also requires the exercise of judgment by management. SSP is based on observable inputs such as the price we charge for the service when sold separately, or the discounted list price per management’s approved price list. In cases where services are not sold separately or price list rates are not available, a cost-plus-margin approach or adjusted market approach is used to determine SSP. Changes to SSP could result in differences in the allocation of transaction price among performance obligations, which could result in differences in the timing and amount of revenue recognized in a period.

From time to time, we enter into contracts to sell services or license technology to unrelated enterprises at or about the same time that we enter into contracts to purchase products or services from the same enterprises. Consideration payable to a customer is reviewed as part of the transaction price. If the payment to the customer does not represent payment for a distinct service, revenue is recognized only up to the net amount of consideration after customer payment obligations are considered. Different determinations on whether a payment represents a distinct service could result in differences in the amount of revenue recognized.

We may also resell licenses or services of third parties. If we are acting as an agent in an arrangement with a customer to provide third party services, the transaction price reflects only the net amount to which we will be entitled, after accounting for payments made to the third party responsible for satisfying the performance obligation. Different determinations on whether we are acting as an agent or a principal could change the amount of revenue recognized.

Accounts Receivable and Related Reserves

Trade accounts receivable are recorded at the invoiced amounts and do not bear interest. In addition to trade accounts receivable, our accounts receivable balance includes unbilled accounts that represent revenue recorded for customers that is typically billed within one month. We record allowances against our accounts receivable balance, primarily for current expected credit losses. Increases and decreases in the allowance for current expected credit losses are included as a component of general and administrative expense in the consolidated statements of income.

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Estimates are used in determining our allowance for current expected credit losses using historical loss rates for the previous twelve months as well as expectations about the future where we have been able to develop forecasts to supports our estimates. In addition, the allowance for current expected credit losses considers outstanding balances on a customer-specific, account-by-account basis. We assess collectability based upon a review of customer receivables from prior sales with collection issues where we no longer believe that the customer has the ability to pay for services previously provided. We also perform ongoing credit evaluations of our customers. If such an evaluation indicates that payment is no longer reasonably assured for services provided, any future services provided to that customer will result in the creation of a cash basis reserve until we receive consistent payments.

Valuation and Impairment of Marketable Securities

We measure the fair value of our financial assets and liabilities at the end of each reporting period. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. We have certain financial assets and liabilities recorded at fair value (principally cash equivalents and short- and long-term marketable securities) that have been classified as Level 1, 2 or 3 within the fair value hierarchy. Fair values determined by Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that we can access at the reporting date. Fair values determined by Level 2 inputs utilize data points other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Fair values determined by Level 3 inputs are based on unobservable data points for the asset or liability.

Marketable securities, which consist primarily of securities available-for-sale, are evaluated for impairment when the fair value declines below the cost basis. We periodically evaluate whether the decline is due to credit losses by considering available evidence regarding these investments including, among other factors, the extent to which, the fair value is less than the cost basis; the financial health of, and business outlook for, the issuer, including industry and sector performance and operational and financing cash flow factors. Additionally, we consider our intent and ability to retain our investment in the security for a period of time sufficient to allow for an anticipated recovery in market value. Assessing the above factors involves inherent uncertainty. If a portion of the unrealized loss is due to credit losses or we do not have the intent or ability to retain our investment in the security, an impairment will be recorded in interest and marketable securities income, net. Impairments, if recorded, could be materially different from the actual market performance of marketable securities in our portfolio if, among other things, relevant information related to our investments was not publicly available or other factors not considered by us would have been relevant to the determination of impairment.

Impairment of Long-Lived Assets

We review our long-lived assets, such as property and equipment, operating lease right-of-use assets and acquired intangible assets, for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Events that would trigger an impairment review include a change in the use of the asset or forecasted negative cash flows related to the asset. When such events occur, we compare the carrying amount of the asset to the undiscounted expected future cash flows related to the asset. If this comparison indicates that impairment is present, the amount of the impairment is calculated as the difference between the carrying amount and the fair value of the asset. If a readily determinable market price does not exist, fair value is estimated using discounted expected cash flows attributable to the asset. The estimates required to apply this accounting policy include forecasted usage of the long-lived assets, the useful lives of these assets and expected future cash flows. Changes in these estimates could materially impact results from operations.

Goodwill and Acquired Intangible Assets

We test goodwill for impairment on an annual basis, as of December 31, or more frequently if events or changes in circumstances indicate that the asset might be impaired. We have concluded that we have one reporting unit and that our chief operating decision maker is our chief executive officer and the executive management team. We have assigned the entire balance of goodwill to our one reporting unit. The fair value of the reporting unit was based on our market capitalization as of each of December 31, 2025 and 2024, and it was substantially in excess of the carrying value of the reporting unit at each date.

Acquired intangible assets consist of completed technologies, customer relationships, trademarks and trade names, non-compete agreements and acquired license rights. We engage third party valuation specialists to assist us with the initial measurement of the fair value of acquired intangible assets. Fair value and amortization period determinations may be based on, among other factors, estimates of future expected cash flows, royalty cost savings and appropriate discount rates used in calculating present values. The value of our acquired intangible assets could be different if we had used different assumption. Acquired intangible assets, other than goodwill, are amortized over their estimated useful lives based upon the estimated

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economic value derived from the related intangible assets.

Income Taxes

Our provision for income taxes is comprised of a current and a deferred portion. The current income tax provision is calculated as the estimated taxes payable or refundable on tax returns for the current year. The deferred income tax provision is calculated for the estimated future tax effects attributable to temporary differences and carryforwards by using expected tax rates in effect in the years during which the differences are expected to reverse or the carryforwards are expected to be realized.

We currently have net deferred tax assets, comprised of net operating loss ("NOL") carryforwards, tax credit carryforwards and deductible temporary differences. Our management periodically weighs the positive and negative evidence to determine if it is more-likely-than-not that some or all of the deferred tax assets will be realized. In determining our net deferred tax assets and valuation allowances, annualized effective tax rates and cash paid for income taxes, management is required to make judgments and estimates about domestic and foreign profitability, the timing and extent of the utilization of NOL carryforwards, applicable tax rates, transfer pricing methodologies and tax planning strategies. Judgments and estimates related to our projections and assumptions are inherently uncertain; therefore, actual results could differ materially from our projections.

We have recorded certain tax reserves to address potential exposures involving our income tax positions. These potential tax liabilities result from the varying application of statutes, rules, regulations and interpretations by different taxing jurisdictions. Our estimate of the value of our tax reserves contains assumptions based on past experiences and judgments about the interpretation of statutes, rules and regulations by taxing jurisdictions. It is possible that the costs of the ultimate tax liability or benefit from these matters may be more or less than the amount that we estimated.

Uncertainty in income taxes is recognized in our consolidated financial statements using a two-step process to determine the amount of tax benefit to be recognized. First, the tax position must be evaluated to determine the likelihood that it will be sustained upon external examination. If the tax position is deemed more-likely-than-not to be sustained based on technical merit, the tax position is then assessed to determine the amount of benefit to recognize in the financial statements. The amount of the benefit that may be recognized is the largest amount that we believe has a greater than 50% likelihood of being realized upon ultimate settlement.

Stock-Based Compensation

We issue stock awards as part of our compensation program which includes restricted stock, restricted stock units, deferred stock units and employee stock purchases related to our employee stock purchase plan. For equity classified awards, we measure the fair value of these awards at the grant date and recognize such fair value as expense over the vesting period. For liability classified awards, the fair value is determined each reporting period beginning at the grant date until final vesting. We have selected the Black-Scholes option pricing model to determine the fair value of stock awards issued under our 1999 Employee Stock Purchase Plan and the Monte Carlo simulation model to determine the fair value of market-based restricted stock unit awards. Determining the fair value of stock-based awards at the grant date requires judgment, including estimating the expected life of the stock awards and the volatility of the underlying common stock. Our assumptions may differ from those used in prior periods. Changes to the assumptions may have an impact on the fair value of stock awards, which could have an impact on our financial statements. Judgment is also required in estimating the number of stock awards that are expected to be forfeited. Should our actual forfeiture rates differ significantly from our estimates, our stock-based compensation expense and results of operations could be materially impacted. In addition, for awards that vest and become exercisable only upon achievement of specified performance conditions, we make judgments and estimates each quarter about the probability that such performance conditions will be met or achieved. Changes to the estimates we make from time to time may have an impact on our stock-based compensation expense and our results of operations.

Capitalized Internal-Use Software Costs

We capitalize salaries and related costs, including stock-based compensation, of employees and consultants who devote time to the development of internal-use software development projects, as well as interest expense related to our outstanding debt. Capitalization begins during the application development stage, once the preliminary project stage has been completed. If a project constitutes an enhancement to previously-developed software, we assess whether the enhancement creates additional functionality to the software, thus qualifying the work incurred for capitalization. Once the project is available for general release, capitalization ceases and we estimate the useful life of the asset and begin amortization. We periodically assess whether triggering events are present to review internal-use software for impairment. Changes in our estimates related to internal-use software would increase or decrease operating expenses or amortization recorded during the period.

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MD&A history

Prior-year 10-K MD&A spans are extracted from SEC filings with the same bounded parser used for the latest filing. The latest 10-K appears above; prior years are below.

FY 2024 10-K MD&A

SEC filing source: 0001086222-25-000028.

Extracted structurally from real Item 7 body heading to real Item 7A/8 boundary. Confidence: high. Filing date: 2025-02-24. Report date: 2024-12-31.

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

This Management’s Discussion and Analysis of Financial Condition and Results of Operations ("MD&A"), should be read in conjunction with our consolidated financial statements and notes thereto that appear elsewhere in this annual report on Form 10-K. See “Risk Factors” elsewhere in this annual report on Form 10-K for a discussion of certain risks associated with our business. The following discussion contains forward-looking statements. The forward-looking statements do not include the potential impact of any mergers, acquisitions, divestitures or other events that may be announced after the date hereof.

Overview

We develop and provide solutions for global enterprises to build, secure and accelerate their applications and digital experiences through our massively distributed global network, which underpins our security, delivery and compute solutions, and is central to our financial success. The key factors that influence our financial success are our ability to build on recurring revenue commitments, increase traffic on our network, continue to develop, scale and successfully bring to market our compute platform and compute-to-edge solutions that meet the needs of professional users and enterprises, including with respect to reliability, effectively manage the prices we charge for our solutions, develop new products and appropriately manage our capital spending and other expenses. The purpose of this discussion and analysis section is to provide material information relevant to an assessment of our financial condition and results of operations from management’s perspective, including to describe and explain key trends, events and other factors that impacted our reported results and that are likely to impact our future performance.

Revenue

We primarily derive revenue from the sale of services to customers pursuant to contracts having terms of one year or longer, which allows us to have a consistent and predictable base level of revenue. Services included in our contracts consist of security solutions, the delivery of content, applications and software over the internet, compute solutions and professional services. In addition to a base level of revenue, we are also dependent on our ability to increase our product offerings and to cross-sell additional services to our new and existing customers, particularly for our security and compute solutions portfolios.

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Our revenue is also impacted by customer renewals and the pricing for such renewals, the rate of adoption and timing of customer offerings, variability of one-time events, usage of compute services and the amount of traffic we serve on our network. Geopolitical, economic and other developments that impact our customers' businesses can also impact our ability to attract new customers or continue to cross-sell additional services to existing customers and traffic levels for customers with variable usage. Over the longer term, our ability to expand our product portfolio and to effectively manage the prices we charge for our solutions are key factors impacting our revenue growth.

We have observed the following trends related to our revenue in recent years:

•Increased sales of our security solutions, led by application security solutions and segmentation solutions from our acquisition of Guardicore Ltd., and increased sales of our compute solutions, attributable to our acquisition of Linode Limited Liability Company ("Linode") and enhanced services on our compute platform, have made a significant contribution to revenue growth. Our security and compute solutions represented over two-thirds of our total revenue during 2024. We plan to continue to invest in these areas with a focus on further advancing our product portfolios and sales capabilities.

•Traffic on our network has moderated as compared to prior years. We, and the industry more broadly, are seeing growth at a slower pace than we have experienced in the past. In particular, we are seeing traffic growth slowing in verticals such as media and gaming, as these customers optimize their traffic and manage through underlying business challenges at a time of global economic and geopolitical headwinds. For instance, a large social media customer has taken steps to lower costs and reduce reliance on U.S. providers by optimizing its platform, including using a “do-it-yourself” component, which has reduced traffic on our network and negatively impacted our revenue in 2024. We expect this trend to continue in 2025. If our customers' businesses continue to be impacted by economic and geopolitical headwinds, they may reduce their spending, optimize their traffic or may increase their reliance on “do-it-yourself” solutions, which may negatively impact traffic on our network and revenue.

•The prices paid by some of our delivery and security customers have declined in recent years due to competition and contract renewals, which negatively impacts our revenue growth rates. We have been able to mitigate some of the negative impacts to our revenue growth rates by upselling incremental solutions to our existing customers. We continue to take steps upon contract renewals to sign customers to multi-year contracts and to optimize how we charge certain high-volume traffic customers to maintain alignment between customer traffic volumes and unit pricing.

•Revenue from our international operations continues to grow, particularly from new customer acquisition and cross-selling of incremental solutions. Because we publicly report in U.S. dollars, our reported revenue results are negatively impacted when the dollar strengthens and benefit when the dollar weakens.

•We have experienced variations in certain types of revenue from quarter-to-quarter. These quarterly variations in revenue are attributable to, among other things, the timing of large customer contract renewals; the frequency and timing of purchases of custom solutions or licensed software; the nature and timing of software and gaming releases by our customers; holiday season activity; and whether there are large live sporting or other events or situations that impact the amount of media traffic on our network.

Expenses

Our level of profitability is impacted by our expenses, including direct costs to support our revenue such as bandwidth and co-location costs, which includes energy to power our network. We have observed the following trends related to our profitability in recent years:

•Co-location costs are a significant portion of our cost of revenue. As we continue to build out our new compute locations to provide us with the ability to scale our platform, we have entered into, and expect to continue to enter into, longer term leases that include certain financial commitments in order to achieve more favorable unit economics. The costs of the financial commitments are expensed ratably over the lease term, and, as a result, in some cases, we are incurring costs in advance of these compute locations being fully utilized. We continue to improve our internal-use software and remain disciplined in managing our hardware deployments, which enables us to use servers more efficiently. We will continue to effectively manage our co-location costs.

•Network bandwidth costs are also a significant portion of our cost of revenue. Historically, we have been able to mitigate increases in these costs through investment in internal-use software development to improve the performance and efficiency of our network. We will continue to effectively manage our bandwidth costs.

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•Network build-out and supporting service costs represent another significant portion of our cost of revenue. These costs include maintenance and supporting services incurred as we continue to build out our compute platform and maintain our global network, and costs of third-party cloud providers used for some of our operations. We have seen these costs increase in recent years as a result of our network expansion, and particularly the build out of our compute platform. We previously experienced increased costs from third-party cloud providers, but continue to mitigate those costs by migrating to our own compute solutions and working to optimize third-party cloud spend. We will continue to effectively manage our network build-out and supporting service costs and continue to migrate third-party cloud services to our compute platform in an effort to manage costs.

•Our employees are core to the operations of our business, and payroll and related costs, including stock-based compensation, is our largest expense. It is important to the success of operations that we offer competitive compensation packages. However, we are focused on remaining disciplined in allocating our resources to support our faster growing security and compute solutions, including maintaining operational efficiencies to mitigate the rising cost of talent. In 2023 we redesigned one of our non-executive short-term incentive compensation programs by shifting certain employees from a cash-based to stock-based program, and in 2024 we transitioned more employees to this program. During 2023, we also introduced a non-executive incentive program tied to our initiative to migrate certain third-party cloud services onto Akamai's platform. These programs were designed to better align employee incentives with the interests of our stockholders, which increased our stock-based compensation.

•Depreciation expense related to our network equipment also contributes to our overall expense levels. In recent years, we have invested in our network, particularly as part of building out our compute infrastructure, which increased our capital expenditures and resulting depreciation expense. We are also experiencing an increase in certain server component costs that support the continued build out of our compute platform. We plan to continue to make investments in capital expenditures, including to support recently acquired contracts, and focus investments on our faster growing compute solutions, including support for a new enterprise compute customer.

•Growth in our international operations incrementally increases our exposure to foreign currency fluctuations. Because we publicly report in U.S. dollars, our expenses are positively impacted when the dollar strengthens and are negatively impacted when the dollar weakens.

Recent Acquisitions

We acquired certain customer contracts from Edgio, Inc. ("Edgio") in December 2024 as part of a bankruptcy process. This acquisition is intended to further strengthen our existing delivery and other businesses as we transition the acquired customers to our platform and offer our portfolio of other services to them. We also acquired Noname Gate Ltd. ("Noname Security") in June 2024. Noname Security is intended to expand our existing API Security offering by providing more flexible deployment options, extensive vendor integrations and enhanced attack analysis. We believe this acquisition will accelerate our ability to meet increasing customer and market demand. As part of the acquisition, we integrated approximately 200 Noname Security employees primarily within sales and marketing and research and development.

We acquired certain customer contracts from Lumen Technologies, Inc. ("Lumen") in October 2023 and from StackPath, LLC ("StackPath") in August 2023. These acquisitions are intended to further strengthen our existing delivery and other businesses as we transition the acquired customers to our platform and offer our portfolio of other services to them. We also acquired Neosec, Inc ("Neosec") in May 2023, which is intended to complement our application and API security portfolio by extending its visibility into the rapidly growing API threat landscape, and StorageOS, Inc. ("StorageOS"), also known as Ondat, in March 2023, which is intended to strengthen our compute offerings. Neither Neosec or Ondat included a significant number of employees when we completed the acquisitions.

In March 2022, we acquired Linode, an infrastructure-as-a-service platform provider, which allows for developer-friendly cloud computing capabilities. The acquisition was intended to enhance our compute services by enabling us to create a unique cloud platform to build, run and secure applications from the cloud to the edge. Linode had approximately 250 employees when we completed the acquisition.

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Global Economic Conditions

Global macroeconomic and geopolitical conditions continue to impact our customers, as well as our business and revenue growth rates. We, along with our customers, continue to manage through an uncertain period of fluctuating inflation, regulations that may negatively impact business, economic and political uncertainty, uncertain energy supplies, heightened geopolitical tensions and conflict, potential for supply chain disruptions, changes in U.S. and international tax laws, changes in tariffs, fluctuations in foreign exchange rates and elevated interest rates. To the extent these macroeconomic conditions continue, we expect that it may adversely affect our business, operations and financial results.

Results of Operations

The following sets forth, as a percentage of revenue, consolidated statements of income data for the years indicated:

202420232022
Revenue100.0%100.0%100.0%
Costs and operating expenses:
Cost of revenue (exclusive of amortization of acquired intangible assets shown below)40.639.638.3
Research and development11.810.710.8
Sales and marketing14.014.013.9
General and administrative15.615.816.2
Amortization of acquired intangible assets2.31.81.8
Restructuring charge2.41.50.4
Total costs and operating expenses86.783.481.4
Income from operations13.416.618.6
Interest and marketable securities income, net2.51.20.1
Interest expense(0.7)(0.5)(0.3)
Other expense, net(0.5)(0.3)(0.3)
Income before provision for income taxes14.717.018.1
Provision for income taxes(2.1)(2.8)(3.5)
Gain (loss) from equity method investment(0.2)
Net income12.7%14.2%14.4%

Revenue

Revenue by solution category during the periods presented was as follows (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20242023% Change% Change at Constant Currency20232022% Change% Change at Constant Currency
Security$2,042,661$1,765,26715.7%16.4%$1,765,267$1,541,94114.5%14.7%
Delivery1,318,1311,542,434(14.5)(14.0)1,542,4341,669,257(7.6)(7.1)
Compute630,376504,21925.025.4504,219405,45624.424.7
Total revenue$3,991,168$3,811,9204.7%5.3%$3,811,920$3,616,6545.4%5.8%

The increases in our revenue in 2024 as compared to 2023, and 2023 as compared to 2022, was primarily the result of continued growth in sales of our security and compute solutions and the acquisition of Linode in March 2022 which contributed to the growth in our compute solutions. These increases were partially offset by a decline in revenue from our delivery solutions due to impacts from economic and geopolitical uncertainty our customers are facing which resulted in slower traffic growth rates and the continued downward pricing of renewals.

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The increase in security solutions revenue for 2024 as compared to 2023, and 2023 as compared to 2022, was due to growth in a number of key products in our security solutions portfolio, including our segmentation and web application solutions, and the growth in certain products that combine elements of our security and delivery offerings to provide robust security solutions.

The decrease in delivery solutions revenue for 2024 as compared to 2023, and 2023 as compared to 2022, was due to our customers' economic and geopolitical headwinds which resulted in slower traffic growth rates and the continued downward pricing of renewals. In 2024, these headwinds caused a large social media customer to increase their focus on cost optimization and "do-it-yourself" solutions, which additionally reduced traffic on our network and had a negative impact on our delivery revenue.

The increase in compute solutions revenue in 2024 as compared to 2023, and 2023 as compared to 2022, was due to growth in sales of compute products, including cloud optimization solutions to new and existing customers and through the acquisition of Linode in the first quarter of 2022. The increase in compute solutions revenue in 2023 as compared to 2022 was also due to a price increase for some of our compute solutions in 2023.

Revenue derived in the U.S. and internationally during the periods presented is as follows (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20242023% Change% Change at Constant Currency20232022% Change% Change at Constant Currency
U.S.$2,075,533$1,968,7795.4%5.4%$1,968,779$1,902,0513.5%3.5%
As a percentage of revenue52.0%51.6%51.6%52.6%
International1,915,6351,843,1413.95.21,843,1411,714,6037.5%8.3
As a percentage of revenue48.0%48.4%48.4%47.4%
Total revenue$3,991,168$3,811,9204.7%5.3%$3,811,920$3,616,6545.4%5.8%

For each of the years ended December 31, 2024, 2023 and 2022, no single country outside of the U.S. accounted for 10% or more of revenue. Changes in foreign currency exchange rates negatively impacted our revenue by $22.5 million in 2024 as compared to 2023, and negatively impacted our revenue by $13.9 million in 2023 as compared to 2022.

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Cost of Revenue

Cost of revenue consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20242023% Change20232022% Change
Co-location fees$308,314$256,06220.4%$256,062$197,37529.7%
Bandwidth fees233,100228,0382.2228,038205,26811.1
Network build-out and supporting services193,607215,557(10.2)215,557195,66910.2
Payroll and related costs334,215325,8512.6325,851298,2699.2
Acquisition-related costs3,190(100.0)3,1904,982(36.0)
Stock-based compensation, including amortization of prior capitalized amounts100,70573,78636.573,78657,14629.1
Depreciation of network equipment282,106231,50021.9231,500259,359(10.7)
Amortization of internal-use software168,746177,079(4.7)177,079165,7516.8
Total cost of revenue$1,620,793$1,511,0637.3%$1,511,063$1,383,8199.2%
As a percentage of revenue40.6%39.6%39.6%38.3%

The increase in cost of revenue for 2024 as compared to 2023 was primarily due to:

•co-location fees and depreciation of network equipment as a result of investment in our network, particularly as we are building out our compute platform to support future growth and scalability; and

•payroll and related costs, including stock-based compensation as a result of headcount growth from our strategic initiatives and annual merit increases. Additionally, the increase in stock-based compensation programs from cash-based to stock-based for certain employees and the timing of our performance-based equity award grants.

The increase in cost of revenue for 2024 as compared to 2023 was partially offset by lower network build-out and supporting services due to a decrease in third-party cloud costs as we have been migrating third-party cloud services onto our own compute platform and working to optimize third-party cloud spending.

The increase in cost of revenue for 2023 as compared to 2022 was primarily due to:

•co-location fees as a result of investment in our network, particularly as we are building out our compute platform to support future growth and scalability;

•bandwidth fees to support the increase in traffic served on our network and for traffic served from higher cost regions;

•network build-out and supporting services due to our investment in our network and costs associated with the transition services agreements to support the migration of customer contracts acquired from Lumen and StackPath; and

•payroll and related costs, including stock-based compensation, as a result of headcount growth to support our network, the increased expected achievement of our performance-based compensation plans and higher average equity awards to employees driven by the talent market; additionally, stock-based compensation increased due to the shift in one of our compensation programs from cash-based to stock-based.

The increase in cost of revenue for 2023 as compared to 2022 was partially offset by lower depreciation expense of network equipment due to software and hardware initiatives we have implemented to manage our global network more efficiently. As a result, we increased the expected average useful life of our servers from five to six years effective January 1, 2023, which resulted in a reduction to depreciation expense of $62.7 million for the year ended December 31, 2023.

Additionally, due to our focus on third-party cloud application costs, including migrating third-party cloud services to our own compute platform and optimizing third-party cloud spending which are included in network build-out and supporting services, our third-party cloud costs decreased for 2023 as compared to 2022.

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During 2025, we expect our cost of revenue to increase as compared to 2024, in particular our co-location costs and depreciation of network equipment, due to investments in our network to support the continued growth of our compute solutions.

Research and Development Expenses

Research and development expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20242023% Change20232022% Change
Payroll and related costs$562,286$494,80313.6%$494,803$468,9285.5%
Stock-based compensation152,114123,89622.8123,89678,11658.6
Capitalized salaries and related costs(272,320)(239,928)13.5(239,928)(183,540)30.7
Acquisition-related costs721(100.0)7212,832(74.5)
Other expenses28,79626,5568.426,55625,0985.8
Total research and development$470,876$406,04816.0%$406,048$391,4343.7%
As a percentage of revenue11.8%10.7%10.7%10.8%

The increase in research and development expenses for 2024 as compared to 2023 was primarily due to higher payroll and related costs, including stock-based compensation, as a result of headcount growth from our strategic initiatives and annual merit increases. Additionally, the increase in stock-based compensation was a result of the timing of our performance-based equity award grants. These increases were partially offset by increases in capitalized salaries and related costs as we had additional resources focused on development activities related to our platform and solutions.

The increase in research and development expenses for 2023 as compared to 2022 was due to higher payroll and related costs, including stock-based compensation, as a result of headcount growth from our strategic initiatives, annual merit increases, the increased expected achievement of our performance-based compensation plans, a new compensation program tied to our initiative to migrate third-party cloud services onto our compute platform and higher average equity awards to employees driven by the talent market. Additionally, stock-based compensation increased due to the shift in one of our compensation programs from cash-based to stock-based. These increases were partially offset by an increase in capitalized salaries and related costs as we focused resources to work on development activities related to our platform.

Research and development costs are expensed as incurred, other than certain internal-use software development costs eligible for capitalization. Capitalized development costs consist of payroll and related costs for personnel and external consulting expenses involved in the development of internal-use software used to deliver our services and operate our network. For the years ended December 31, 2024, 2023 and 2022, we capitalized $99.6 million, $77.0 million and $30.0 million, respectively, of stock-based compensation. These capitalized internal-use software development costs are amortized to cost of revenue over their estimated useful lives, ranging from two to ten years based on the software developed and its expected useful life.

We expect our research and development costs to increase in 2025, in particular payroll and related costs, in support of our faster growing security and compute solutions.

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Sales and Marketing Expenses

Sales and marketing expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20242023% Change20232022% Change
Payroll and related costs$393,584$376,3054.6%$376,305$374,1100.6%
Stock-based compensation77,59366,45316.866,45347,78939.1
Marketing programs and related costs53,89359,151(8.9)59,15155,0337.5
Acquisition-related costs1,387(100.0)1,3872,166(36.0)
Other expenses31,71129,9306.029,93023,31128.4
Total sales and marketing$556,781$533,2264.4%$533,226$502,4096.1%
As a percentage of revenue14.0%14.0%14.0%13.9%

The increase in sales and marketing expenses for 2024 as compared to 2023 was due to higher payroll and related costs, including stock-based compensation as a result of annual merit increases and employees acquired through the Noname Security acquisition. Additionally, the increase in stock-based compensation was a result of the timing of our performance-based equity award grants These increases were partially offset by a reduction in marketing programs and related costs as a result of the timing of events and advertising campaigns.

The increase in sales and marketing expenses for 2023 as compared to 2022 was due to higher payroll and related costs, including stock-based compensation, as a result of annual merit increases, headcount growth and the increased expected achievement of our performance-based compensation plans and other expenses due to increased travel expenses associated with customer meetings and sales events. Additionally, stock-based compensation increased due to the shift in one of our compensation programs from cash-based to stock-based.

During 2025 we do not expect significant increases in sales and marketing expenses as we plan to continue to carefully manage costs related to our go-to-market efforts to align resources with higher growth areas of our business.

General and Administrative Expenses

General and administrative expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20242023% Change20232022% Change
Payroll and related costs$225,687$218,2723.4%$218,272$213,7722.1%
Stock-based compensation102,49494,3168.794,31662,92649.9
Depreciation and amortization66,18465,8170.665,81774,225(11.3)
Facilities-related costs86,67190,061(3.8)90,061103,473(13.0)
Provision for doubtful accounts3,9191,649137.71,6497,042(76.6)
Acquisition-related costs7,5028,050(6.8)8,05019,071(57.8)
Software and related service costs56,55755,7141.555,71450,32010.7
Other expenses72,77166,9728.766,97253,37725.5
Total general and administrative$621,785$600,8513.5%$600,851$584,2062.8%
As a percentage of revenue15.6%15.8%15.8%16.2%

The increase in general and administrative expenses for 2024 as compared to 2023 was primarily due to higher payroll and related costs as a result of annual merit increases, an increase in stock-based compensation as a result of the timing of our performance-based equity award grants and an increase in other expenses related to professional service fees to support our business. These increases were partially offset by decreased facilities-related costs as we exited certain facilities in connection

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with our FlexBase program.

The increase in general and administrative expenses for 2023 as compared to 2022 was due to higher payroll and related costs, including stock-based compensation, as a result of annual merit increases, headcount growth, the increased expected achievement of our performance-based compensation plans and higher average equity awards to employees driven by the talent market and other expenses due to increased professional service fees to support our business. Additionally, stock-based compensation increased due to the shift in one of our compensation programs from cash-based to stock-based. These increases were partially offset by decreases in facilities-related costs as a result of growth in sublease income from the execution of our FlexBase program and acquisition-related costs in connection with our acquisition of Linode in the first quarter of 2022.

During 2025, we expect our general and administrative expenses to increase as compared to 2024, to support the operations of the business.

Amortization of Acquired Intangible Assets

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20242023% Change20232022% Change
Amortization of acquired intangible assets$92,081$66,75137.9%$66,751$64,9832.7%
As a percentage of revenue2.3%1.8%1.8%1.8%

The increase in amortization of acquired intangible assets for 2024 as compared to 2023, and 2023 as compared to 2022, was the result of amortization of acquired intangible assets related to our recent acquisitions. Based on acquired intangible assets as of December 31, 2024, future amortization is expected to be $111.5 million, $104.1 million, $89.2 million, $81.9 million and $76.0 million for the years ending December 31, 2025, 2026, 2027, 2028 and 2029, respectively.

Restructuring Charge

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20242023% Change20232022% Change
Restructuring charge$95,441$56,64368.5%$56,643$13,529318.7%
As a percentage of revenue2.4%1.5%1.5%0.4%

The restructuring charge in 2024 was driven by management's commitment to an action with the primary intent to redeploy resources to support our strategic investments and as a result of our completed acquisitions. The restructuring charge included severance and related expenses for certain headcount reductions, as well as impairments of acquired intangible assets and capitalized internal-use software. We do not expect to incur material additional charges related to these actions.

The restructuring charge in 2023 was primarily driven by our FlexBase program as we exited certain facilities that were no longer needed, resulting in impairments of right-of-use-assets and leasehold improvements. We do not expect to incur material additional charges related to the FlexBase program. Additionally, the restructuring charge in 2023 included the result of certain actions initiated in the first quarter of 2023. Management's commitment to an action to restructure certain parts of the company was to enable the prioritization of investments in the fastest growing areas of the business. The restructuring charge for this action includes severance and related expenses for certain headcount reductions. We do not expect to incur material additional charges related to this action.

The restructuring charge in 2022 was primarily related to capitalized internal-use software impairment charges related to our investment with Mitsubishi UFJ Financial Group ("MUFG") in the joint venture Global Open Network, Inc. ("GO-NET"), and MUFG's decision to suspend GO-NET's operations, and impairments of right-of-use-assets for facilities that are no longer needed as a result of our FlexBase program.

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Non-Operating Income (Expense)

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20242023% Change20232022% Change
Interest and marketable securities income, net$100,280$45,194121.9%$45,194$3,2581,287.2%
As a percentage of revenue2.5%1.2%1.2%0.1%
Interest expense$(27,117)$(17,709)53.1%$(17,709)$(11,096)59.6%
As a percentage of revenue(0.7)%(0.5)%(0.5)%(0.3)%
Other expense, net$(19,561)$(12,296)59.1%$(12,296)$(10,433)17.9%
As a percentage of revenue(0.5)%(0.3)%(0.3)%(0.3)%

Interest and marketable securities income, net primarily consists of interest earned on invested cash and marketable securities balances and income and losses on mutual funds that are associated with our employee non-qualified deferred compensation plan. The increase to interest and marketable securities income, net for 2024 as compared to 2023, and 2023 as compared to 2022, was the result of increased cash, cash equivalents and marketable securities balances received from our August 2023 issuance of $1,265.0 million in par value of convertible senior notes due 2029 and higher interest rates, as well as increased gains associated with the non-qualified deferred compensation plan.

Interest expense is related to our debt transactions, which are described in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K. The increase to interest expense for 2024 as compared to 2023, and 2023 as compared to 2022, was primarily due to the August 2023 issuance of $1,265.0 million in par value of convertible senior notes due 2029.

Other expense, net primarily represents net foreign exchange gains and losses mainly due to foreign exchange rate fluctuations on the remeasurement of monetary assets and liabilities that are not denominated in the functional currency as well as other non-operating expense and income items. Other expense, net for 2024 and 2022 also includes impairments of $5.1 million and $8.9 million, respectively, from cost method investments. Other expense, net may fluctuate in the future based on changes in foreign currency exchange rates or other events.

Provision for Income Taxes

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20242023% Change20232022% Change
Provision for income taxes$82,095$106,373(22.8)%$106,373$126,696(16.0)%
As a percentage of revenue2.1%2.8%2.8%3.5%
Effective income tax rate14.0%16.3%16.3%19.3%

The decrease in the provision for income taxes for 2024 as compared to 2023 was mainly due to the benefit from an intercompany sale of intellectual property in 2024, an increase in the excess tax benefit related to stock-based compensation, lower profitability and an increase in the benefit of U.S. federal and state research and development credits. These amounts were partially offset by a decrease in foreign income taxed at lower rates, an increase in non-deductible transfer pricing and an increase in certain tax reserves.

The decrease in the provision for income taxes for 2023 as compared to 2022 was mainly due to a reduction in intercompany sales of intellectual property and the tax on global intangible low-taxed income. These items were partially offset by a decrease in the excess tax benefit related to stock-based compensation and the revaluation of certain foreign income tax liabilities due to foreign exchange rate fluctuations.

For the year ended December 31, 2024, our effective income tax rate was lower than the federal statutory tax rate due to the benefit of U.S. federal, state and foreign research and development credits, an intercompany sale of intellectual property, foreign income taxed at lower rates and the excess tax benefit related to stock-based compensation. These amounts were partially offset by non-deductible stock-based compensation and non-deductible transfer pricing.

For the years ended December 31, 2023 and 2022, our effective income tax rate was lower than the federal statutory tax rate due to foreign income taxed at lower rates and the benefit of U.S. federal, state and foreign research and development

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credits. These amounts were partially offset by non-deductible stock-based compensation and the tax on global intangible low-taxed income. Additionally, our effective income tax rate was lower for the year ended December 31, 2022 due to an intercompany sale of intellectual property.

Our effective income tax rate may fluctuate between fiscal years and from quarter to quarter due to items arising from discrete events, such as tax benefits from the settlement of employee equity awards, tax law changes and settlements of tax audits and assessments. Our effective income tax rate is also impacted by, and may fluctuate in any given period because of, the composition of income in foreign jurisdictions where tax rates differ depending on the local statutory rates. The Organisation for Economic Co-operation and Development (“OECD”) and participating OECD member countries continue to work toward the enactment of a 15% global minimum corporate tax rate for large multinational enterprise groups, also known as "Pillar Two". Many of the participating countries have enacted legislation that became effective beginning in 2024, while other countries continue to work on defining the underlying rules and administrative procedures. Although the enactment and effective legislation in many countries was applicable to us beginning on January 1, 2024, and increased our effective income tax rate, the increase did not have a material impact on our overall results of operations or cash flows. We will continue to monitor and evaluate the impacts of the developing legislation.

(Gain) Loss from Equity Method Investment

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20242023% Change20232022% Change
(Gain) loss from equity method investment$$(1,475)100.0%$(1,475)$7,635(119.3)%
As a percentage of revenue%%%0.2%

The amounts reflected in (gain) loss from equity method investment relate to our investment with MUFG in a joint venture, GO-NET. GO-NET intended to operate a blockchain-based online payment network. However, GO-NET operations were suspended in February 2022, and ultimately liquidated in August 2023. The gain from equity method investment in 2023 was related to the liquidation and disbursement of our portion of GO-NET's remaining assets, which were previously impaired. The loss from equity method investment in 2022 was the result of our impairment of our investment in GO-NET in the first quarter of 2022 since the operations will no longer generate future cash flows. We do not expect additional activity related to this investment.

Use of Non-GAAP Financial Measures

In addition to providing financial measurements based on generally accepted accounting principles in the United States of America ("GAAP") we provide additional financial metrics that are not prepared in accordance with GAAP ("non-GAAP financial measures"). Management uses non-GAAP financial measures, in addition to GAAP financial measures, to understand and compare operating results across accounting periods, for financial and operational decision making, for planning and forecasting purposes, to measure executive compensation and to evaluate our financial performance. These non-GAAP financial measures are non-GAAP income from operations, non-GAAP operating margin, non-GAAP net income, non-GAAP net income per diluted share, Adjusted EBITDA, Adjusted EBITDA margin and impact of foreign currency exchange rates, as discussed below.

Management believes that these non-GAAP financial measures reflect our ongoing business in a manner that allows for meaningful comparisons and analysis of trends in the business, as they facilitate comparison of financial results across accounting periods and to those of our peer companies. Management also believes that these non-GAAP financial measures enable investors to evaluate our operating results and future prospects in the same manner as management. These non-GAAP financial measures may exclude expenses and gains that may be unusual in nature, infrequent or not reflective of our ongoing operating results.

The non-GAAP financial measures do not replace the presentation of our GAAP financial measures and should only be used as a supplement to, not as a substitute for, our financial results presented in accordance with GAAP.

The non-GAAP adjustments, and our basis for excluding them from non-GAAP financial measures, are outlined below:

•Amortization of acquired intangible assets – We have incurred amortization of intangible assets, included in our GAAP financial statements, related to various acquisitions we have made. The amount of an acquisition's purchase price allocated to intangible assets and term of its related amortization can vary significantly and is unique to each

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acquisition; therefore, we exclude amortization of acquired intangible assets from our non-GAAP financial measures to provide investors with a consistent basis for comparing pre- and post-acquisition operating results.

•Stock-based compensation and amortization of capitalized stock-based compensation – Stock-based compensation is an important aspect of the compensation paid to our employees, which includes long-term incentive plans to encourage retention, performance-based plans to encourage achievement of specified financial targets and also short-term incentive awards with a one year vest. The grant date fair value of the stock-based compensation awards varies based on the stock price at the time of grant, varying valuation methodologies, subjective assumptions and the variety of award types. This makes the comparison of our current financial results to previous and future periods difficult to interpret; therefore, we believe it is useful to exclude stock-based compensation and amortization of capitalized stock-based compensation from our non-GAAP financial measures in order to highlight the performance of our core business and to be consistent with the way many investors evaluate our performance and compare our operating results to peer companies.

•Acquisition-related costs – Acquisition-related costs include transaction fees, advisory fees, due diligence costs and other direct costs associated with strategic activities, as well as certain additional compensation costs payable to employees acquired from the Linode acquisition if employed for a certain period of time. The additional compensation cost was initiated by and determined by the seller and is in addition to normal levels of compensation, including retention programs, offered by Akamai. Acquisition-related costs are impacted by the timing and size of the acquisitions, and we exclude acquisition-related costs from our non-GAAP financial measures to provide a useful comparison of operating results to prior periods and to peer companies because such amounts vary significantly based on the magnitude of our acquisition transactions and do not reflect our core operations.

•Restructuring charge – We have incurred restructuring charges from programs that have significantly changed either the scope of the business undertaken by us or the manner in which that business is conducted. These charges include severance and related expenses for workforce reductions, impairments of long-lived assets that will no longer be used in operations (including acquired intangible assets, right-of-use assets, other facility-related property and equipment and internal-use software) and termination fees for any contracts cancelled as part of these programs. We exclude these items from our non-GAAP financial measures when evaluating our continuing business performance as such items vary significantly based on the magnitude of the restructuring action and do not reflect expected future operating expenses. In addition, these charges do not necessarily provide meaningful insight into the fundamentals of current or past operations of our business.

•Amortization of debt issuance costs and capitalized interest expense – We have convertible senior notes outstanding that mature in 2029, 2027 and 2025. The issuance costs of the convertible senior notes are amortized to interest expense and are excluded from our non-GAAP results because management believes the non-cash amortization expense is not representative of ongoing operating performance.

•Gains and losses on cost method investments – We have recorded gains and losses from the disposition, changes to fair value and impairment of cost method investments. We believe excluding these amounts from our non-GAAP financial measures is useful to investors as the types of events giving rise to these gains and losses are not representative of our core business operations and ongoing operating performance.

•Legal settlements – We have incurred losses related to the settlement of legal matters. We believe excluding these amounts from our non-GAAP financial measures is useful to investors as the types of events giving rise to them are not representative of our core business operations.

•Gains and losses from equity method investment – We record income or losses on our share of earnings and losses from our equity method investment, and any gains from returns of investments or impairments. We exclude such income and losses because we do not have direct control over the operations of the investment and the related income and losses are not representative of our core business operations.

•Income tax effect of non-GAAP adjustments and certain discrete tax items – The non-GAAP adjustments described above are reported on a pre-tax basis. The income tax effect of non-GAAP adjustments is the difference between GAAP and non-GAAP income tax expense. Non-GAAP income tax expense is computed on non-GAAP pre-tax income (GAAP pre-tax income adjusted for non-GAAP adjustments) and excludes certain discrete tax items (such as the impact of intercompany sales of intellectual property related to our acquisitions), if any. We believe that applying the non-GAAP adjustments and their related income tax effect allows us to highlight income attributable to our core operations.

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The following table reconciles GAAP income from operations to non-GAAP income from operations and non-GAAP operating margin for the years ended December 31, 2024, 2023 and 2022 (in thousands):

202420232022
Income from operations$533,411$637,338$676,274
Amortization of acquired intangible assets92,08166,75164,983
Stock-based compensation393,378328,467217,185
Amortization of capitalized stock-based compensation and capitalized interest expense42,91032,98131,768
Restructuring charge95,44156,64313,529
Acquisition-related costs7,50213,34529,049
Legal settlements2,500
Non-GAAP income from operations$1,167,223$1,135,525$1,032,788
GAAP operating margin13.4%16.7%18.7%
Non-GAAP operating margin29.2%29.8%28.6%

The following table reconciles GAAP net income to non-GAAP net income for the years ended December 31, 2024, 2023 and 2022 (in thousands):

202420232022
Net income$504,918$547,629$523,672
Amortization of acquired intangible assets92,08166,75164,983
Stock-based compensation393,378328,467217,185
Amortization of capitalized stock-based compensation and capitalized interest expense42,91032,98131,768
Restructuring charge95,44156,64313,529
Acquisition-related costs7,50213,34529,049
Legal settlements2,500
Amortization of debt issuance costs6,5215,3414,395
Loss (gain) on cost method investments5,066(311)8,260
(Gain) loss from equity method investment(1,475)7,635
Income tax effect of above non-GAAP adjustments and certain discrete tax items(154,735)(89,364)(42,768)
Non-GAAP net income$995,582$960,007$857,708

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The following table reconciles GAAP net income per diluted share to non-GAAP net income per diluted share for the years ended December 31, 2024, 2023 and 2022 (in thousands, except per share data):

202420232022
GAAP net income per diluted share$3.27$3.52$3.26
Adjustments to net income:
Amortization of acquired intangible assets0.600.430.40
Stock-based compensation2.552.111.35
Amortization of capitalized stock-based compensation and capitalized interest expense0.280.210.20
Restructuring charge0.620.360.08
Acquisition-related costs0.050.090.18
Legal settlements0.02
Amortization of debt issuance costs0.040.030.03
Loss (gain) on cost method investments0.030.05
(Gain) loss from equity method investment(0.01)0.05
Income tax effect of above non-GAAP adjustments and certain discrete tax items(1.00)(0.58)(0.27)
Adjustment for shares (1)0.030.020.02
Non-GAAP net income per diluted share (2)$6.48$6.20$5.37
Shares used in GAAP per diluted share calculations154,346155,397160,467
Impact of benefit from note hedge transactions (1)(744)(574)(720)
Shares used in non-GAAP per diluted share calculations (1)153,602154,823159,747

(1) Shares used in non-GAAP per diluted share calculations have been adjusted for the periods presented for the benefit of our note hedge transactions. During these periods, our average stock price was in excess of $95.10, which is the initial conversion price of our convertible senior notes due in 2025. See further definition below.

(2) Amounts may not foot due to rounding.

Non-GAAP net income per diluted share is calculated as non-GAAP net income divided by weighted average diluted common shares outstanding. Diluted weighted average common shares outstanding are adjusted in non-GAAP per share calculations for the shares that would be delivered to us pursuant to the note hedge transactions entered into in connection with the issuance of $1,265 million of convertible senior notes due 2029 and the issuances of $1,150 million of convertible senior notes due 2027 and 2025, respectively. Under GAAP, shares delivered under hedge transactions are not considered offsetting shares in the fully-diluted share calculation until they are delivered. However, we would receive a benefit from the note hedge transactions and would not allow the dilution to occur, so management believes that adjusting for this benefit provides a meaningful view of operating performance. With respect to the convertible senior notes due in each of 2029, 2027 and 2025, unless our weighted average stock price is greater than $126.31, $116.18 and $95.10, respectively, the initial conversion prices, there will be no difference between GAAP and non-GAAP diluted weighted average common shares outstanding.

We consider Adjusted EBITDA to be another important indicator of the operational strength and performance of our business and a good measure of our historical operating trends. Adjusted EBITDA eliminates items that we do not consider to be part of our core operations. We define Adjusted EBITDA as GAAP net income excluding the following items: interest and marketable securities income and losses; income taxes; depreciation and amortization of tangible and intangible assets; stock-based compensation; amortization of capitalized stock-based compensation; acquisition-related costs; restructuring charges; legal settlements; foreign exchange gains and losses; interest expense; amortization of capitalized interest expense; gains and losses on cost method investments; gains and losses from equity method investments; and other non-recurring or unusual items that may arise from time to time. Adjusted EBITDA margin represents Adjusted EBITDA stated as a percentage of revenue.

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The following table reconciles GAAP net income to Adjusted EBITDA and Adjusted EBITDA margin for the years ended December 31, 2024, 2023 and 2022 (in thousands):

202420232022
Net income$504,918$547,629$523,672
Amortization of acquired intangible assets92,08166,75164,983
Stock-based compensation393,378328,467217,185
Amortization of capitalized stock-based compensation and capitalized interest expense42,91032,98131,768
Restructuring charge95,44156,64313,529
Acquisition-related costs7,50213,34529,049
Legal settlements2,500
Interest and marketable securities income, net(100,280)(45,194)(3,258)
Interest expense27,11717,70911,096
Provision for income taxes82,095106,373126,696
Depreciation and amortization514,455472,035496,909
Loss (gain) on cost method investments5,066(311)8,260
(Gain) loss from equity method investment(1,475)7,635
Other expense, net14,49512,6072,173
Adjusted EBITDA$1,681,678$1,607,560$1,529,697
Net income margin12.7%14.4%14.5%
Adjusted EBITDA margin42.1%42.2%42.3%

Impact of Foreign Currency Exchange Rates

Revenue and earnings from our international operations have historically been an important contributor to our financial results. Consequently, our financial results have been impacted, and management expects they will continue to be impacted, by fluctuations in foreign currency exchange rates. For example, when the local currencies of our international subsidiaries weaken, generally our consolidated results stated in U.S. dollars are negatively impacted.

Because exchange rates are a meaningful factor in understanding period-to-period comparisons, management believes the presentation of the impact of foreign currency exchange rates on revenue and earnings enhances the understanding of our financial results and evaluation of performance in comparison to prior periods. The dollar impact of changes in foreign currency exchange rates presented is calculated by translating current period results using monthly average foreign currency exchange rates from the comparative period and comparing them to the reported amount. The percentage change at constant currency presented is calculated by comparing the prior period amounts as reported and the current period amounts translated using the same monthly average foreign currency exchange rates from the comparative period.

Liquidity and Capital Resources

To date, we have financed our operations primarily through public and private sales of debt and equity securities and cash generated by operations. As of December 31, 2024, our cash, cash equivalents and marketable securities, which are detailed in Note 3 to the consolidated financial statements included elsewhere in this annual report on Form 10-K, totaled $1.9 billion. We place our cash investments in instruments that meet high-quality credit standards, as specified in our investment policy. Our investment policy is designed to limit the amount of our credit exposure to any one issue or issuer and seeks to manage these assets to achieve our goals of preserving principal and maintaining adequate liquidity at all times.

Changes in cash, cash equivalents and marketable securities are dependent upon changes in, among other things, working capital items such as accounts receivable, deferred revenue, accounts payable, various accrued expenses and operating lease obligations, as well as changes in our capital and financial structure due to common stock repurchases, debt repayments and issuances, purchases and sales of marketable securities, cash paid for acquisitions and similar events. We believe our strong balance sheet and cash position are important competitive differentiators that provide the financial stability and flexibility to

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enable us to continue to make investments at opportune times. We expect to continue to evaluate strategic investments to strengthen our business.

As of December 31, 2024, we had cash and cash equivalents of $300.3 million held in accounts outside the U.S. The U.S. Tax Cuts and Jobs Act establishes a territorial tax system in the U.S., which provides companies with the potential ability to repatriate earnings with minimal U.S. federal income tax impact. As a result, our liquidity is not expected to be materially impacted by the amount of cash and cash equivalents held in accounts outside the U.S.

Cash Provided by Operating Activities

For the Years Ended December 31,
(in thousands)202420232022
Net income$504,918$547,629$523,672
Non-cash reconciling items included in net income1,048,595931,507756,321
Changes in operating assets and liabilities(34,342)(130,697)(5,317)
Net cash provided by operating activities$1,519,171$1,348,439$1,274,676

The increase in cash provided by operating activities for 2024 as compared to 2023 was due to increased collections from customers as a result of increased revenue and timing of customer collections. The increase was also due to the shift in our performance-based compensation program from cash-based to stock-based, which led to cash performance-based program payments in 2023 that did not recur in 2024.

The increase in cash provided by operating activities for 2023 as compared to 2022 was due to increased profitability in 2023, as well as cash paid for income taxes related to an intercompany sale of intellectual property and additional compensation costs paid to employees acquired from the Linode acquisition, both of which occurred in 2022 and did not re-occur in 2023.

Cash Used in Investing Activities

For the Years Ended December 31,
(in thousands)202420232022
Cash paid for business acquisitions, net of cash acquired$(434,066)$(106,171)$(872,091)
Cash paid for asset acquisitions(132,835)(120,985)
Purchases of property and equipment and capitalization of internal-use software development costs(685,267)(730,040)(458,302)
Net marketable securities activity449,516(884,973)714,205
Other, net3,973(6,069)(6,122)
Net cash used in investing activities$(798,679)$(1,848,238)$(622,310)

The decrease in cash used in investing activities in 2024 as compared to 2023 was due to an increase in cash proceeds from net marketable securities activity to fund the acquisition of Noname Security in 2024 and a reduction of purchases of property and equipment related to our compute platform build-out. Additionally, cash used in investing activities in 2023 included an increase in purchases of marketable securities with the proceeds from our August 2023 issuance of convertible senior notes. These decreases were partially offset by cash paid for the acquisition of Noname Security.

The increase in cash used in investing activities in 2023 as compared to 2022 was due to an increase in purchases of marketable securities with the proceeds from our August 2023 issuance of convertible senior notes and purchases of property and equipment related to our compute platform build-out. These increases were partially offset by cash paid for the acquisition of Linode in March 2022 and by net marketable securities activity as we sold marketable securities during 2022 to fund the acquisition.

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Cash (Used in) Provided by Financing Activities

For the Years Ended December 31,
(in thousands)202420232022
Net convertible senior notes activity$$1,101,028$
Activity related to stock-based compensation(111,663)(3,243)(25,774)
Repurchases of common stock(557,468)(654,046)(608,010)
Other, net(10,504)(360)(393)
Net cash (used in) provided by financing activities$(679,635)$443,379$(634,177)

The increase in cash used in financing activities in 2024 as compared to 2023 was due to the net proceeds received in 2023 from our convertible senior notes due 2029 that did not recur in 2024 and increased employee taxes paid in 2024 related to vesting of stock awards driven by the shift in our performance-based compensation program from cash-based to stock-based and an increase in stock price. These increases were partially offset by a reduction in repurchases of our common stock as part of our share repurchase program.

The increase in cash used in financing activities in 2023 as compared to 2022 was due to the net proceeds from our convertible senior notes due 2029 that were issued in August 2023. This increase was partially offset by an increase in repurchases of our common stock.

In October 2021, our board of directors authorized a $1.8 billion share repurchase program that was effective from January 2022 through December 2024. In May 2024, our board of directors authorized a new $2.0 billion share repurchase program, effective May 2024 through June 2027, which was in addition to amounts remaining under the January 2022 program. As of December 31, 2024, the January 2022 $1.8 billion program was fully utilized and $2.0 billion remains available for repurchase on the May 2024 program. During 2024, 2023 and 2022, we repurchased 5.6 million, 7.8 million and 6.4 million shares of our common stock, respectively, at an average price per share of $99.14, $83.83 and $94.96, respectively. Our goals for the share repurchase programs are to offset the dilution created by our employee equity compensation programs over time and provide the flexibility to return capital to stockholders as business and market conditions warrant, while still preserving our ability to pursue other strategic opportunities. The timing and amount of any future share repurchases will be determined by our management based on its evaluation of market conditions and other factors.

Convertible Senior Notes

As of December 31, 2024, we had $3,565.0 million of convertible senior notes outstanding that are senior unsecured obligations and bear interest payable semi-annually in arrears. These notes mature between May 2025 and February 2029. The terms of the notes and hedge and warrant transactions are discussed more fully in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K.

Revolving Credit Facility

In November 2022, we entered into a $500.0 million, five-year revolving credit agreement ("2022 Credit Agreement"). The 2022 Credit Agreement allows us to borrow up to $500.0 million at various interest rates and contains customary representations and warranties, affirmative and negative covenants and events of default. As of December 31, 2024, we were in compliance with all covenants.

There were no outstanding borrowings under the 2022 Credit Agreement as of December 31, 2024. The terms of the revolving credit agreements are discussed more fully in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K.

In January 2025, we entered into a $150.0 million uncommitted revolving credit agreement ("2025 Credit Agreement"). The 2025 Credit Agreement contains customary representations and warranties, affirmative and negative covenants and events of default. Any borrowings are secured by collateral consisting primarily of available-for-sale debt securities in our investment portfolio.

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Operating Leases

We have entered into operating leases for real estate assets related to office space and co-location assets related to space or racks at co-location facilities and related equipment for our servers and other networking equipment. As of December 31, 2024 the total obligation under these agreements was $1,231.6 million, of which $263.1 million is payable in the next 12 months. We have also executed additional operating leases that will commence in 2025 for $197.0 million. Additionally, during the fourth quarter of 2024, we entered into an operating lease with a data center operator for space in the Virginia area that is expected to commence beginning in the third quarter of 2025. The lease is for a datacenter with gross payments of approximately $750.0 million over a 12 year lease term. We have contemporaneously entered into a sublease with the affiliate of a large social media customer for the use of the space on substantially similar terms. The operating lease costs and associated sublease income will be recorded as general and administrative expense in the consolidated statements of income and are expected to substantially offset each other. The operating lease terms and maturities are discussed more fully in Note 12 to the consolidated financial statements included elsewhere in this annual report on Form 10-K.

Purchase Commitments

We enter into long-term agreements with network and internet service providers for bandwidth, as well as execute purchase orders for the purchase of goods or services in the ordinary course of business, which may contain minimum commitments. These minimum commitments may vary from period to period depending on the timing and length of contract renewals with our vendors, and on our plans for network expansion, including our expansion plans related to our compute business.

Liquidity Outlook

Based on our present business plan, we expect our current cash, cash equivalents and marketable securities balances and our forecasted cash flows from operations to be sufficient to meet our foreseeable cash needs for at least the next 12 months. Our foreseeable cash needs, in addition to our recurring operating costs, include our expected capital expenditures, investments in information technology, potential strategic acquisitions, anticipated share repurchases, lease and purchase commitments, settlements of other liabilities and repayment of our $1,150.0 million convertible senior notes due May 2025.

Off-Balance Sheet Arrangements

We have entered into indemnification agreements with third parties, including vendors, customers, landlords, our officers and directors, stockholders of acquired companies, joint venture partners and third parties to which we license technology. Generally, these indemnification agreements require us to reimburse losses suffered by a third party due to various events, such as lawsuits arising from patent or copyright infringement or our negligence. These indemnification obligations are considered off-balance sheet arrangements in accordance with the authoritative guidance for guarantor’s accounting and disclosure requirements for guarantees, including indirect guarantees of indebtedness of others. See Note 13 to our consolidated financial statements included elsewhere in this annual report on Form 10-K for further discussion of these indemnification agreements. The fair value of guarantees issued or modified during 2024 and 2023 was determined to be immaterial.

Significant Accounting Policies and Estimates

See Note 2 to the consolidated financial statements included elsewhere in this annual report on Form 10-K for information regarding recent and newly adopted accounting pronouncements.

Application of Critical Accounting Policies and Estimates

Overview

Our MD&A is based upon our consolidated financial statements, which have been prepared in accordance with GAAP. These principles require us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, cash flow and related disclosure of contingent assets and liabilities. Our estimates include those related to revenue recognition, accounts receivable and related reserves, valuation and impairment of marketable securities, capitalized internal-use software development costs, goodwill and acquired intangible assets, income tax reserves, impairment and useful lives of long-lived assets and stock-based compensation. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances at the time such estimates are made. Actual results may differ from these estimates. For a complete description of our significant accounting policies, see Note 2 to our consolidated financial statements included elsewhere in this annual report on Form 10-K.

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Definitions

We define our critical accounting policies as those policies that require us to make subjective estimates and judgments about matters that are uncertain and are likely to have a material impact on our consolidated financial statements. Our estimates are based upon assumptions and judgments about matters that are highly uncertain at the time an accounting estimate is made and applied and require us to assess a range of potential outcomes.

Review of Critical Accounting Policies and Estimates

Revenue Recognition

Our contracts with customers sometimes include promises to transfer multiple services to a customer. Determining whether services are distinct performance obligations often requires the exercise of judgment by management. Advanced features that enhance a main product or service and are highly interrelated are generally not considered distinct; rather, they are combined with the service they relate to into one performance obligation. Different determinations related to combining services into performance obligations could result in differences in the timing and amount of revenue recognized in a period.

Determination of the standalone selling price ("SSP") for each distinct performance obligation in a contract also requires the exercise of judgment by management. SSP is based on observable inputs such as the price we charge for the service when sold separately, or the discounted list price per management’s approved price list. In cases where services are not sold separately or price list rates are not available, a cost-plus-margin approach or adjusted market approach is used to determine SSP. Changes to SSP could result in differences in the allocation of transaction price among performance obligations, which could result in differences in the timing and amount of revenue recognized in a period.

From time to time, we enter into contracts to sell services or license technology to unrelated enterprises at or about the same time that we enter into contracts to purchase products or services from the same enterprises. Consideration payable to a customer is reviewed as part of the transaction price. If the payment to the customer does not represent payment for a distinct service, revenue is recognized only up to the net amount of consideration after customer payment obligations are considered. Different determinations on whether a payment represents a distinct service could result in differences in the amount of revenue recognized.

We may also resell licenses or services of third parties. If we are acting as an agent in an arrangement with a customer to provide third party services, the transaction price reflects only the net amount to which we will be entitled, after accounting for payments made to the third party responsible for satisfying the performance obligation. Different determinations on whether we are acting as an agent or a principal could change the amount of revenue recognized.

Accounts Receivable and Related Reserves

Trade accounts receivable are recorded at the invoiced amounts and do not bear interest. In addition to trade accounts receivable, our accounts receivable balance includes unbilled accounts that represent revenue recorded for customers that is typically billed within one month. We record allowances against our accounts receivable balance, primarily for current expected credit losses. Increases and decreases in the allowance for current expected credit losses are included as a component of general and administrative expense in the consolidated statements of income.

Estimates are used in determining our allowance for current expected credit losses using historical loss rates for the previous twelve months as well as expectations about the future where we have been able to develop forecasts to supports our estimates. In addition, the allowance for current expected credit losses considers outstanding balances on a customer-specific, account-by-account basis. We assess collectability based upon a review of customer receivables from prior sales with collection issues where we no longer believe that the customer has the ability to pay for services previously provided. We also perform ongoing credit evaluations of our customers. If such an evaluation indicates that payment is no longer reasonably assured for services provided, any future services provided to that customer will result in the creation of a cash basis reserve until we receive consistent payments.

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Valuation and Impairment of Marketable Securities

We measure the fair value of our financial assets and liabilities at the end of each reporting period. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. We have certain financial assets and liabilities recorded at fair value (principally cash equivalents and short- and long-term marketable securities) that have been classified as Level 1, 2 or 3 within the fair value hierarchy. Fair values determined by Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that we can access at the reporting date. Fair values determined by Level 2 inputs utilize data points other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Fair values determined by Level 3 inputs are based on unobservable data points for the asset or liability.

Marketable securities, which consist primarily of securities available-for-sale, are evaluated for impairment when the fair value declines below the cost basis. We periodically evaluate whether the decline is due to credit losses by considering available evidence regarding these investments including, among other factors, the extent to which, the fair value is less than the cost basis; the financial health of, and business outlook for, the issuer, including industry and sector performance and operational and financing cash flow factors. Additionally, we consider our intent and ability to retain our investment in the security for a period of time sufficient to allow for an anticipated recovery in market value. Assessing the above factors involves inherent uncertainty. If a portion of the unrealized loss is due to credit losses or we do not have the intent or ability to retain our investment in the security, an impairment will be recorded in interest and marketable securities income, net. Impairments, if recorded, could be materially different from the actual market performance of marketable securities in our portfolio if, among other things, relevant information related to our investments was not publicly available or other factors not considered by us would have been relevant to the determination of impairment.

Impairment of Long-Lived Assets

We review our long-lived assets, such as property and equipment, operating lease right-of-use assets and acquired intangible assets, for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Events that would trigger an impairment review include a change in the use of the asset or forecasted negative cash flows related to the asset. When such events occur, we compare the carrying amount of the asset to the undiscounted expected future cash flows related to the asset. If this comparison indicates that impairment is present, the amount of the impairment is calculated as the difference between the carrying amount and the fair value of the asset. If a readily determinable market price does not exist, fair value is estimated using discounted expected cash flows attributable to the asset. The estimates required to apply this accounting policy include forecasted usage of the long-lived assets, the useful lives of these assets and expected future cash flows. Changes in these estimates could materially impact results from operations.

Goodwill and Acquired Intangible Assets

We test goodwill for impairment on an annual basis, as of December 31, or more frequently if events or changes in circumstances indicate that the asset might be impaired. We have concluded that we have one reporting unit and that our chief operating decision maker is our chief executive officer and the executive management team. We have assigned the entire balance of goodwill to our one reporting unit. The fair value of the reporting unit was based on our market capitalization as of each of December 31, 2024 and 2023, and it was substantially in excess of the carrying value of the reporting unit at each date.

Acquired intangible assets consist of completed technologies, customer relationships, trademarks and trade names, non-compete agreements and acquired license rights. We engage third party valuation specialists to assist us with the initial measurement of the fair value of acquired intangible assets. Fair value and amortization period determinations may be based on, among other factors, estimates of future expected cash flows, royalty cost savings and appropriate discount rates used in calculating present values. The value of our acquired intangible assets could be different if we had used different assumption. Acquired intangible assets, other than goodwill, are amortized over their estimated useful lives based upon the estimated economic value derived from the related intangible assets.

Income Taxes

Our provision for income taxes is comprised of a current and a deferred portion. The current income tax provision is calculated as the estimated taxes payable or refundable on tax returns for the current year. The deferred income tax provision is calculated for the estimated future tax effects attributable to temporary differences and carryforwards by using expected tax rates in effect in the years during which the differences are expected to reverse or the carryforwards are expected to be realized.

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We currently have net deferred tax assets, comprised of net operating loss ("NOL") carryforwards, tax credit carryforwards and deductible temporary differences. Our management periodically weighs the positive and negative evidence to determine if it is more-likely-than-not that some or all of the deferred tax assets will be realized. In determining our net deferred tax assets and valuation allowances, annualized effective tax rates and cash paid for income taxes, management is required to make judgments and estimates about domestic and foreign profitability, the timing and extent of the utilization of NOL carryforwards, applicable tax rates, transfer pricing methodologies and tax planning strategies. Judgments and estimates related to our projections and assumptions are inherently uncertain; therefore, actual results could differ materially from our projections.

We have recorded certain tax reserves to address potential exposures involving our income tax positions. These potential tax liabilities result from the varying application of statutes, rules, regulations and interpretations by different taxing jurisdictions. Our estimate of the value of our tax reserves contains assumptions based on past experiences and judgments about the interpretation of statutes, rules and regulations by taxing jurisdictions. It is possible that the costs of the ultimate tax liability or benefit from these matters may be more or less than the amount that we estimated.

Uncertainty in income taxes is recognized in our consolidated financial statements using a two-step process to determine the amount of tax benefit to be recognized. First, the tax position must be evaluated to determine the likelihood that it will be sustained upon external examination. If the tax position is deemed more-likely-than-not to be sustained based on technical merit, the tax position is then assessed to determine the amount of benefit to recognize in the financial statements. The amount of the benefit that may be recognized is the largest amount that we believe has a greater than 50% likelihood of being realized upon ultimate settlement.

Stock-Based Compensation

We issue stock awards as part of our compensation program which includes stock options, restricted stock, restricted stock units, deferred stock units and employee stock purchases related to our employee stock purchase plan. For equity classified awards, we measure the fair value of these awards at the grant date and recognize such fair value as expense over the vesting period. For liability classified awards, the fair value is determined each reporting period beginning at the grant date until final vesting. We have selected the Black-Scholes option pricing model to determine the fair value of stock option awards and the Monte Carlo simulation model to determine the fair value of market-based restricted stock unit awards. Determining the fair value of stock-based awards at the grant date requires judgment, including estimating the expected life of the stock awards and the volatility of the underlying common stock. Our assumptions may differ from those used in prior periods. Changes to the assumptions may have an impact on the fair value of stock awards, which could have an impact on our financial statements. Judgment is also required in estimating the number of stock awards that are expected to be forfeited. Should our actual forfeiture rates differ significantly from our estimates, our stock-based compensation expense and results of operations could be materially impacted. In addition, for awards that vest and become exercisable only upon achievement of specified performance conditions, we make judgments and estimates each quarter about the probability that such performance conditions will be met or achieved. Changes to the estimates we make from time to time may have an impact on our stock-based compensation expense and our results of operations.

Capitalized Internal-Use Software Costs

We capitalize salaries and related costs, including stock-based compensation, of employees and consultants who devote time to the development of internal-use software development projects, as well as interest expense related to our outstanding debt. Capitalization begins during the application development stage, once the preliminary project stage has been completed. If a project constitutes an enhancement to previously-developed software, we assess whether the enhancement creates additional functionality to the software, thus qualifying the work incurred for capitalization. Once the project is available for general release, capitalization ceases and we estimate the useful life of the asset and begin amortization. We periodically assess whether triggering events are present to review internal-use software for impairment. Changes in our estimates related to internal-use software would increase or decrease operating expenses or amortization recorded during the period.

FY 2023 10-K MD&A

SEC filing source: 0001086222-24-000040.

Extracted structurally from real Item 7 body heading to real Item 7A/8 boundary. Confidence: high. Filing date: 2024-02-28. Report date: 2023-12-31.

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

This Management’s Discussion and Analysis of Financial Condition and Results of Operations ("MD&A"), should be read in conjunction with our consolidated financial statements and notes thereto that appear elsewhere in this annual report on Form 10-K. See “Risk Factors” elsewhere in this annual report on Form 10-K for a discussion of certain risks associated with our business. The following discussion contains forward-looking statements. The forward-looking statements do not include the potential impact of any mergers, acquisitions, divestitures or other events that may be announced after the date hereof.

Overview

We provide solutions to power and protect life online through our massively distributed edge and cloud platform, which we refer to as Akamai Connected Cloud. Akamai Connected Cloud underpins our cloud computing, security and content delivery solutions, and is central to our financial success. The key factors that influence our financial success are our ability to build on recurring revenue commitments for our security and performance offerings, increase traffic on our network, continue to develop, scale and successfully bring to market our cloud computing platform and compute-to-edge solutions that meet the needs of professional users and enterprises, effectively manage the prices we charge for our solutions, develop new products and appropriately manage our capital spending and other expenses. The purpose of this discussion and analysis section is to provide material information relevant to an assessment of our financial condition and results of operations from management’s perspective, including to describe and explain key trends, events and other factors that impacted our reported results and that are likely to impact our future performance.

Revenue

We primarily derive revenue from the sale of services to customers executing contracts having terms of one year or longer, which allows us to have a consistent and predictable base level of revenue. Services included in our contracts consist of security solutions, the delivery of content, applications and software over the internet, cloud computing solutions and professional services. In addition to a base level of revenue, we are also dependent on our ability to increase our product offerings and to cross-sell additional services to our new and existing customers, particularly for our security and compute solution portfolios. Our revenue is also impacted by customer renewals, the rate of adoption and timing of customer offerings, variability of one-time events, usage of cloud computing services and the amount of traffic we serve on our network. Geopolitical, economic and other developments that impact our customers' businesses can also impact our ability to attract new customers or continue to cross-sell additional services to existing customers. Over the longer term, our ability to expand our product portfolio and to effectively manage the prices we charge for our solutions are key factors impacting our revenue growth.

We have observed the following trends related to our revenue in recent years:

•Increased sales of our security solutions, led by application security solutions and segmentation solutions from our acquisition of Guardicore Ltd., and increased sales of our compute solutions, primarily attributable to our acquisition of Linode in early 2022, have made a significant contribution to revenue growth. During 2023, security represented the largest share of revenue with security and compute revenue representing over half of our total revenue. We plan to continue to invest in these areas with a focus on further advancing our product portfolios.

•Traffic on our network continues to grow at a modest pace as compared to prior years, and is impacted by a number of external factors. Most recently, as we and our customers manage through a time of economic headwinds and uncertainty, traffic growth rates have been impacted. Conversely, our rate of traffic growth increased significantly during the onset of the COVID-19 pandemic and the associated stay-at-home orders across the globe. However, as these orders were lifted and more return-to-work policies were adopted, our traffic growth rates declined. These traffic fluctuations may continue to impact our delivery revenue.

•The prices paid by some of our delivery and security customers have declined in recent years due to competition and contract renewals, which negatively impacts our revenue growth rates. We have been able to mitigate some of the negative impacts to our revenue growth rates by upselling incremental solutions to our existing delivery and security customers. We are taking steps upon contract renewals to optimize how we charge certain high-volume traffic delivery customers, including charging a premium for higher-cost destinations and continuing to maintain alignment between customer traffic volumes and unit pricing.

•Revenue from our international operations has generally been growing at a faster pace in recent years than from our U.S. operations, particularly from new customer acquisition and cross-selling of incremental solutions. Because we

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publicly report in U.S. dollars, our reported revenue results are negatively impacted when the dollar strengthens and benefit when the dollar weakens.

•We have experienced variations in certain types of revenue from quarter-to-quarter. In particular, we typically experience higher revenue in the fourth quarter of each year for some of our solutions as a result of holiday season activity. In addition, we experience quarterly variations in revenue attributable to, among other things, the timing of large customer contract renewals; the frequency and timing of purchases of custom solutions or licensed software; the nature and timing of software and gaming releases by our customers; and whether there are large live sporting or other events or situations that impact the amount of media traffic on our network.

Expenses

Our level of profitability is impacted by our expenses, including direct costs to support our revenue such as bandwidth and co-location costs, which includes energy to power our network. We have observed the following trends related to our profitability in recent years:

•Network bandwidth costs represent a significant portion of our cost of revenue. Historically, we have been able to mitigate increases in these costs by reducing our network bandwidth costs per unit and investing in internal-use software development to improve the performance and efficiency of our network. We will need to continue to effectively manage our bandwidth costs to maintain or improve current levels of profitability.

•Co-location costs are also a significant portion of our cost of revenue. As we continue to build out our new compute locations to provide us with the ability to scale our platform, we expect to enter into longer term leases that include certain financial commitments in order to achieve more favorable unit economics. The costs of the financial commitments are expensed ratably over the life of the lease, and, as a result, in some cases, we are incurring costs in advance of these compute locations being fully utilized. We continue to improve our internal-use software and remain disciplined in managing our hardware deployments, particularly for our delivery platform, which enables us to use servers more efficiently. With these efficiencies we have been able to moderate the impact of rising energy costs. We expect to continue to scale our network in the future, which we believe will allow us to effectively manage our co-location costs to maintain or improve current levels of profitability.

•Network build-out and supporting service costs represent another significant portion of our cost of revenue. These costs include maintenance and supporting services incurred as we continue to build out our compute infrastructure and maintain our global network, and costs of third-party cloud providers used for some of our operations. We have seen these costs increase in recent years as a result of our network expansion, and particularly the build out of our compute infrastructure. We had also experienced increased costs from third-party cloud providers, but have recently begun to mitigate those costs by migrating to our own cloud solutions and optimizing third-party cloud spend. We will need to continue to effectively manage our network build-out and supporting service costs and continue to migrate third-party cloud services to Akamai Connected Cloud to maintain or improve current levels of profitability.

•Our employees are core to the operations of our business, and payroll and related costs, including stock-based compensation, is our largest expense. It is important to the success of operations that we offer competitive compensation packages. However, we remain disciplined in allocating our resources to support our faster growing security and compute solutions, including maintaining operational efficiencies to mitigate the rising cost of talent. In 2023, we redesigned one of our non-executive short-term incentive compensation programs by shifting certain employees from a cash-based to stock-based program. We also introduced a non-executive incentive program tied to our initiative to migrate certain third-party cloud services onto Akamai Connected Cloud. These programs are designed to better align employee incentives with the interests of our stockholders.

•Depreciation expense related to our network equipment also contributes to our overall expense levels. In recent years, we have invested in our network as traffic levels have increased and as part of building out our compute infrastructure, which increased our capital expenditures and resulting depreciation expense. We plan to continue to make investments in capital expenditures, however, the focus is to further invest in support of our faster growing compute solutions. Due to the software and hardware initiatives we have undertaken to manage our global network more efficiently, the useful lives of our servers have been extended from five to six years effective January 1, 2023, which has offset increased depreciation expense from our network expansion and the build out of our compute infrastructure.

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•Growth in our international operations incrementally increases our exposure to foreign currency fluctuations. Because we publicly report in U.S. dollars, our expenses are positively impacted when the dollar strengthens and are negatively impacted when the dollar weakens.

Recent Acquisitions

We acquired certain customer contracts from Lumen Technologies, Inc. ("Lumen") in October 2023 and from StackPath, LLC ("StackPath") in August 2023. These acquisitions are intended to further strengthen our existing content delivery and other businesses as we transition the acquired customers to our Akamai Connected Cloud and offer our portfolio of other services to these customers. Revenue attributable to these asset acquisitions was $20.3 million during the year ended December 31, 2023. We also acquired Neosec, Inc ("Neosec") in May 2023, which is intended to complement our application and API security portfolio by extending its visibility into the rapidly growing API threat landscape, and StorageOS, Inc. ("StorageOS"), also known as Ondat, in March 2023, which is intended to strengthen our cloud computing offerings. Neither Neosec or Ondat included a significant number of employees when we completed the acquisitions.

In March 2022, we acquired Linode, an infrastructure-as-a-service platform provider, which allows for developer-friendly cloud computing capabilities. The acquisition was intended to enhance our computing services by enabling us to create a unique cloud platform to build, run and secure applications from the cloud to the edge. Linode had approximately 250 employees when we completed the acquisition.

In October 2021, we acquired Guardicore whose micro-segmentation solution is designed to limit user access to only those applications that are authorized to communicate with each other, thereby limiting the spread of malware and protecting the flow of enterprise data across the network. Guardicore had approximately 270 employees when we completed the acquisition.

Global Economic Conditions

Global macroeconomic and geopolitical conditions continue to impact our business and revenue growth rates. We, along with our customers, continue to manage through an uncertain period of fluctuating inflation, economic uncertainty, uncertain energy supplies, heightened geopolitical tensions, potential for supply chain disruptions, changes in international tax laws, fluctuations in foreign exchange rates and elevated interest rates. To the extent these macroeconomic conditions continue, we expect that it may adversely affect our business, operations and financial results.

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Results of Operations

The following sets forth, as a percentage of revenue, consolidated statements of income data for the years indicated:

202320222021
Revenue100.0%100.0%100.0%
Costs and operating expenses:
Cost of revenue (exclusive of amortization of acquired intangible assets shown below)39.638.336.7
Research and development10.710.89.7
Sales and marketing14.013.913.3
General and administrative15.816.216.0
Amortization of acquired intangible assets1.81.81.4
Restructuring charge1.50.40.3
Total costs and operating expenses83.481.477.4
Income from operations16.618.622.6
Interest and marketable securities income, net1.20.10.5
Interest expense(0.5)(0.3)(2.1)
Other (expense) income, net(0.3)(0.3)0.1
Income before provision for income taxes17.018.121.1
Provision for income taxes(2.8)(3.5)(1.8)
Gain (loss) from equity method investment(0.2)(0.4)
Net income14.2%14.4%18.9%

Revenue

Revenue by solution category during the periods presented was as follows (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20232022% Change% Change at Constant Currency20222021% Change% Change at Constant Currency
Security$1,765,267$1,541,94114.5%14.7%$1,541,941$1,334,83615.5%19.7%
Delivery1,542,4341,669,257(7.6)(7.1)1,669,2571,873,243(10.9)(7.8)
Compute504,219405,45624.424.7405,456253,14460.264.0
Total revenue$3,811,920$3,616,6545.4%5.8%$3,616,654$3,461,2234.5%8.0%

The increases in our revenue in 2023 as compared to 2022, and 2022 as compared to 2021, was primarily the result of continued growth in sales of our security solutions and the acquisition of Linode in March 2022 which contributed to the growth in our compute solutions. The increase in 2023 as compared to 2022 was partially offset by a decline in revenue from our delivery solutions due to the pricing impact of renewals and moderated traffic growth. The increase in 2022 as compared to 2021 was negatively impacted by the significant strengthening of the U.S. dollar and a decline in revenue from our delivery solutions due to a reduction in traffic growth and pricing impact of renewals.

The increase in security solutions revenue for 2023 as compared to 2022, and 2022 as compared to 2021, was due to growth in a number of key products in our security solutions portfolio, including our segmentation and web application firewall solutions, denial of service and bot management solutions. The increase in security solutions revenue for 2023 as compared to 2022 was also due to growth in certain products that combine elements of our security and delivery offerings to provide robust security solutions.

The decrease in delivery solutions revenue for 2023 as compared to 2022 was due to the pricing impact of renewals and moderated traffic growth. The decrease in delivery solutions revenue for 2022 as compared to 2021 was due to a reduction in traffic growth rates as our largest customers are not experiencing the same traffic growth rates as they once were.

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The increase in compute solutions revenue in 2023 as compared to 2022, and 2022 as compared to 2021, was due to growth in compute products, including continued growth in cloud optimization solutions and through the acquisition of Linode in the first quarter of 2022. The increase in compute solutions revenue in 2023 as compared to 2022 was also due to a price increase for some of our compute solutions in 2023.

Revenue derived in the U.S. and internationally during the periods presented is as follows (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20232022% Change% Change at Constant Currency20222021% Change% Change at Constant Currency
U.S.$1,968,779$1,902,0513.5%3.5%$1,902,051$1,837,5083.5%3.5%
As a percentage of revenue51.6%52.6%52.6%53.1%
International1,843,1411,714,6037.58.31,714,6031,623,7155.6%13.2
As a percentage of revenue48.4%47.4%47.4%46.9%
Total revenue$3,811,920$3,616,6545.4%5.8%$3,616,654$3,461,2234.5%8.0%

For each of the years ended December 31, 2023, 2022 and 2021, no single country outside of the U.S. accounted for 10% or more of revenue. Changes in foreign currency exchange rates negatively impacted our revenue by $13.9 million in 2023 as compared to 2022, and negatively impacted our revenue by $122.1 million in 2022 as compared to 2021.

Cost of Revenue

Cost of revenue consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20232022% Change20222021% Change
Bandwidth fees$228,038$205,26811.1%$205,268$209,288(1.9)%
Co-location fees256,062197,37529.7197,375177,95010.9
Network build-out and supporting services215,557195,66910.2195,669157,23424.4
Payroll and related costs325,851298,2699.2298,269276,5447.9
Acquisition-related costs3,1904,982(36.0)4,982100.0
Stock-based compensation, including amortization of prior capitalized amounts73,78657,14629.157,14657,390(0.4)
Depreciation of network equipment231,500259,359(10.7)259,359226,38414.6
Amortization of internal-use software177,079165,7516.8165,751164,1661.0
Total cost of revenue$1,511,063$1,383,8199.2%$1,383,819$1,268,9569.1%
As a percentage of revenue39.6%38.3%38.3%36.7%

The increase in cost of revenue for 2023 as compared to 2022 was primarily due to:

•co-location fees as a result of investment in Akamai Connected Cloud, particularly as we build out our compute infrastructure to support future growth and scalability;

•bandwidth fees to support the increase in traffic served on our network and for traffic served from higher cost regions;

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•network build-out and supporting services due to our infrastructure investment in Akamai Connected Cloud and costs associated with the transition services agreements to support the migration of customer contracts acquired from Lumen and StackPath; and

•payroll and related costs, including stock-based compensation, as a result of headcount growth to support our network, the increased expected achievement of our performance-based compensation plans and higher average equity awards to employees driven by the talent market; additionally, stock-based compensation increased due to the shift in one of our compensation programs from cash-based to stock-based.

The increase in cost of revenue for 2023 as compared to 2022 was partially offset by lower depreciation expense of network equipment due to software and hardware initiatives we have implemented to manage our global network more efficiently. As a result, we increased the expected average useful life of our servers from five to six years effective January 1, 2023, which resulted in a reduction to depreciation expense of $62.7 million for the year ended December 31, 2023.

Additionally, due to our focus on third-party cloud application costs, including migrating third-party cloud services to our own cloud solutions and optimizing third-party cloud spending which are included in network build-out and supporting services, our third-party cloud costs decreased for 2023 as compared to 2022.

The increase in cost of revenue for 2022 as compared to 2021 was primarily due to increased network build-out and supporting services, particularly related to increased supporting services for third-party cloud applications, and increased investment in our network in prior years to support traffic growth, which resulted in higher depreciation costs of our network equipment and growth in expenses related to our co-location facilities including energy to power our network.

During 2024, we expect our cost of revenue to increase as compared to 2023, in particular our co-location costs, due to investments in our network to support the continued growth of our compute solutions. We plan to continue to focus our efforts on managing our operating margins, including our bandwidth and network build-out costs. Specifically, we are continuing to take steps to migrate third-party cloud services onto Akamai Connected Cloud, which we expect will continue to reduce third-party cloud services costs.

Research and Development Expenses

Research and development expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20232022% Change20222021% Change
Payroll and related costs$494,803$468,9285.5%$468,928$456,1382.8%
Stock-based compensation123,89678,11658.678,11665,95118.4
Capitalized salaries and related costs(239,928)(183,540)30.7(183,540)(200,530)(8.5)
Acquisition-related costs7212,832(74.5)2,832100.0
Other expenses26,55625,0985.825,09813,81381.7
Total research and development$406,048$391,4343.7%$391,434$335,37216.7%
As a percentage of revenue10.7%10.8%10.8%9.7%

The increase in research and development expenses for 2023 as compared to 2022 was due to higher payroll and related costs, including stock-based compensation, as a result of headcount growth from our strategic initiatives, annual merit increases, the increased expected achievement of our performance-based compensation plans, a new compensation program tied to our initiative to migrate third-party cloud services onto Akamai Connected Cloud and higher average equity awards to employees driven by the talent market. Additionally, stock-based compensation increased due to the shift in one of our compensation programs from cash-based to stock-based. These increases were partially offset by an increase in capitalized salaries and related costs as we focused resources to work on development activities related to our platform.

The increase in research and development expenses for 2022 as compared to 2021 was due to higher payroll and related costs and related stock-based compensation as a result of headcount growth from employees joining us through acquisitions, a reduction in capitalized salaries and related costs as a result of a shift in resources to work on core maintenance activities related to our platform and an increase in other expenses due to an increase in the use of third-party cloud services to support our research and development activities.

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Research and development costs are expensed as incurred, other than certain internal-use software development costs eligible for capitalization. Capitalized development costs consist of payroll and related costs for personnel and external consulting expenses involved in the development of internal-use software used to deliver our services and operate our network. For the years ended December 31, 2023, 2022 and 2021, we capitalized $77.0 million, $30.0 million and $32.2 million, respectively, of stock-based compensation. These capitalized internal-use software development costs are amortized to cost of revenue over their estimated useful lives, ranging from two to ten years based on the software developed and its expected useful life.

We expect our research and development costs to increase in 2024, in particular payroll and related costs, including stock-based compensation, in support of our faster growing security and compute solutions. However, we plan to continue to focus our efforts on managing our operating margins.

Sales and Marketing Expenses

Sales and marketing expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20232022% Change20222021% Change
Payroll and related costs$376,305$374,1100.6%$374,110$366,5012.1%
Stock-based compensation66,45347,78939.147,78946,3423.1
Marketing programs and related costs59,15155,0337.555,03340,55335.7
Acquisition-related costs1,3872,166(36.0)2,166100.0
Other expenses29,93023,31128.423,3118,571172.0
Total sales and marketing$533,226$502,4096.1%$502,409$461,9678.8%
As a percentage of revenue14.0%13.9%13.9%13.3%

The increase in sales and marketing expenses for 2023 as compared to 2022 was due to higher payroll and related costs, including stock-based compensation, as a result of annual merit increases, headcount growth and the increased expected achievement of our performance-based compensation plans and other expenses due to increased travel expenses associated with customer meetings and sales events. Additionally, stock-based compensation increased due to the shift in one of our compensation programs from cash-based to stock-based.

The increase in sales and marketing expenses for 2022 as compared to 2021 was primarily due to increased marketing programs and related costs due to advertising and customer events held in 2022. Other expenses also increased due to travel associated with customer events and meetings, as well as a sales recognition event during 2022 that did not occur in 2021. Such events and travel costs were higher in 2022 than in 2021 due to the rollback of COVID-19 pandemic-related restrictions that had been in place in the prior year.

We expect sales and marketing costs to increase in 2024 as compared to 2023, due to our continued investment in go-to-market efforts. However, we plan to continue to carefully manage costs in an effort to manage our operating margins.

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General and Administrative Expenses

General and administrative expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20232022% Change20222021% Change
Payroll and related costs$218,272$213,7722.1%$213,772$223,238(4.2)%
Stock-based compensation94,31662,92649.962,92663,324(0.6)
Depreciation and amortization65,81774,225(11.3)74,22581,934(9.4)
Facilities-related costs90,061103,473(13.0)103,473100,7692.7
Provision for doubtful accounts1,6497,042(76.6)7,042763822.9
Acquisition-related costs8,05019,071(57.8)19,07113,31743.2
Software and related service costs55,71450,32010.750,32040,86123.1
Other expenses66,97253,37725.553,37728,81885.2
Total general and administrative$600,851$584,2062.8%$584,206$553,0245.6%
As a percentage of revenue15.8%16.2%16.2%16.0%

The increase in general and administrative expenses for 2023 as compared to 2022 was due to higher payroll and related costs, including stock-based compensation, as a result of annual merit increases, headcount growth, the increased expected achievement of our performance-based compensation plans and higher average equity awards to employees driven by the talent market and other expenses due to increased professional service fees to support our business. Additionally, stock-based compensation increased due to the shift in one of our compensation programs from cash-based to stock-based. These increases were partially offset by decreases in facilities-related costs as a result of growth in sublease income from the execution of our FlexBase program and acquisition-related costs in connection with our acquisition of Linode in the first quarter of 2022.

The increase in general and administrative expenses for 2022 as compared to 2021 was primarily due to increased software and related service costs as we transition to and expand usage of cloud-based applications to support our operations, other expenses related to an increase in professional service fees to support our business and acquisition-related costs primarily related to our acquisition of Linode. These increases were partially offset by a decrease in payroll and related costs due to a decline in performance-based compensation program achievement.

General and administrative expenses for 2023, 2022 and 2021 are broken out by category as follows (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20232022% Change20222021% Change
Global functions$246,753$212,67416.0%$212,674$212,4560.1%
As a percentage of revenue6.5%5.9%5.9%6.1%
Infrastructure344,399345,391(0.3)345,391326,4805.8
As a percentage of revenue9.0%9.6%9.6%9.4%
Other9,69926,141(62.9)26,14114,08885.6
Total general and administrative expenses$600,851$584,2062.8%$584,206$553,0245.6%
As a percentage of revenue15.8%16.2%16.2%16.0%

Global functions expense includes payroll, stock-based compensation and other employee-related costs for administrative functions, including finance, purchasing, order entry, human resources, legal, information technology and executive personnel, as well as third-party professional service fees. Infrastructure expense includes payroll, stock-based compensation and other employee-related costs for our network infrastructure functions, as well as facility rent expense, depreciation and amortization of facility- and IT-related assets, software and related service costs, business insurance and taxes. Our network infrastructure function is responsible for network planning, sourcing, architecture evaluation and platform security. Other expense includes acquisition-related costs and provision for doubtful accounts.

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During 2024, we expect our general and administrative expenses to increase as compared to 2023, in particular payroll and related costs, including stock-based compensation, due to the impact of mid-year merit increases and headcount growth to support the operations of the business. However, we plan to continue to control costs, including reducing our real estate expenses due to excess capacity created by our FlexBase program, in an effort to manage our operating margins.

Amortization of Acquired Intangible Assets

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20232022% Change20222021% Change
Amortization of acquired intangible assets$66,751$64,9832.7%$64,983$48,01935.3%
As a percentage of revenue1.8%1.8%1.8%1.4%

The increase in amortization of acquired intangible assets for 2023 as compared to 2022, as well as 2022 as compared to 2021, was the result of amortization of acquired intangible assets related to our recent acquisitions. Based on acquired intangible assets as of December 31, 2023, future amortization is expected to be $84.8 million, $80.5 million, $76.1 million, $62.0 million and $49.6 million for the years ending December 31, 2024, 2025, 2026, 2027 and 2028, respectively.

Restructuring Charge

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20232022% Change20222021% Change
Restructuring charge$56,643$13,529318.7%$13,529$10,73726.0%
As a percentage of revenue1.5%0.4%0.4%0.3%

The restructuring charge in 2023 was driven by our FlexBase program as we exited certain facilities that were no longer needed, resulting in impairments of right-of-use-assets and leasehold improvements. Additional charges related to this action may occur; however, we do not expect such charges will materially impact our financial condition or results of operations, and we expect to continue to evaluate our facility footprint going forward. Additionally, the restructuring charge in 2023 included the result of certain actions initiated in the first quarter of 2023. Management's commitment to an action to restructure certain parts of the company was to enable the prioritization of investments in the fastest growing areas of the business. The restructuring charge for this action includes severance and related expenses for certain headcount reductions.

The restructuring charge in 2022 was primarily related to software impairment charges related to our investment with Mitsubishi UFJ Financial Group ("MUFG") in the joint venture Global Open Network, Inc. ("GO-NET"), and MUFG's decision to suspend GO-NET's operations, and impairments of right-of-use-assets for facilities that are no longer needed as a result of our FlexBase program.

The restructuring charge in 2021 was primarily the result of management's actions initiated in the fourth quarter of 2020 to better position us to become more agile in delivering our solutions. The restructuring charge for this action includes severance and related expenses for certain headcount reductions and software charges for software not yet placed into service that will not be implemented due to this action. In addition to the 2020 action, additional charges were incurred in 2021, related to management’s launch of its new FlexBase program in May 2022. The restructuring charge incurred for this program in 2021 includes impairments of lease-related assets for certain facilities that are no longer needed. These restructuring charges were partially offset by the release of a lease obligation for a facility previously exited as part of management actions initiated in late 2019.

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Non-Operating Income (Expense)

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20232022% Change20222021% Change
Interest and marketable securities income, net$45,194$3,2581,287.2%$3,258$15,620(79.1)%
As a percentage of revenue1.2%0.1%0.1%0.5%
Interest expense$(17,709)$(11,096)59.6%$(11,096)$(72,332)(84.7)%
As a percentage of revenue(0.5)%(0.3)%(0.3)%(2.1)%
Other (expense) income, net$(12,296)$(10,433)17.9%$(10,433)$1,785(684.5)%
As a percentage of revenue(0.3)%(0.3)%(0.3)%0.1%

Interest and marketable securities income, net primarily consists of interest earned on invested cash and marketable securities balances and income and losses on mutual funds that are associated with our employee non-qualified deferred compensation plan. The increase to interest and marketable securities income, net for 2023 as compared to 2022 was the result of increased marketable securities balances as a result of our August 2023 issuance of $1,265.0 million in par value of convertible senior notes due 2029 and higher interest rates, as well as increased gains associated with the non-qualified deferred compensation plan. The decrease to interest and marketable securities income, net for 2022 as compared to 2021 was due to increased losses associated with the non-qualified deferred compensation plan and lower interest earned on invested cash balances and marketable securities as a result of lower marketable securities balances in 2022 due to the funding of our acquisitions of Linode and Guardicore.

Interest expense is related to our debt transactions, which are described in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K. The increase to interest expense for 2023 as compared to 2022 was primarily due to the August 2023 issuance of $1,265.0 million in par value of convertible senior notes due 2029. The decrease to interest expense for 2022 as compared to 2021 was the result of the adoption of the new guidance for accounting for convertible senior notes on January 1, 2022, which resulted in the elimination of the amortization of debt discounts.

Other (expense) income, net primarily represents net foreign exchange gains and losses mainly due to foreign exchange rate fluctuations on intercompany transactions and other non-operating expense and income items as well as gains and losses on equity investments. Other (expense) income, net for 2022 includes impairments of $8.9 million from equity investments, partially offset by a favorable impact of changes in foreign currency exchange rates. Other (expense) income, net for 2021 includes a $3.7 million gain from the sale of an equity investment. Other income (expense), net may fluctuate in the future based on changes in foreign currency exchange rates or other events.

Provision for Income Taxes

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20232022% Change20222021% Change
Provision for income taxes$106,373$126,696(16.0)%$126,696$62,571102.5%
As a percentage of revenue2.8%3.5%3.5%1.8%
Effective income tax rate16.3%19.3%19.3%8.6%

The decrease in the provision for income taxes for 2023 as compared to 2022 was mainly due to a reduction in intercompany sales of intellectual property and the tax on global intangible low-taxed income. These items were partially offset by a decrease in the excess tax benefit related to stock-based compensation and the revaluation of certain foreign income tax liabilities due to foreign exchange rate fluctuations.

The increase in the provision for income taxes for 2022 as compared to 2021 was mainly due to an intercompany sale of intellectual property, an increase in the tax on global intangible low-taxed income, a decrease in foreign income taxed at lower rates and a decrease in the excess tax benefit related to stock-based compensation. These amounts were partially offset by a decrease in profitability.

For the year ended December 31, 2023, our effective income tax rate was lower than the federal statutory tax rate due to foreign income taxed at lower rates and the benefit of U.S. federal, state and foreign research and development credits. These amounts were partially offset by non-deductible stock-based compensation and the tax on global intangible low-taxed income.

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For the year ended December 31, 2022, our effective income tax rate was lower than the federal statutory tax rate due to foreign income taxed at lower rates and the benefit of U.S. federal, state and foreign research and development credits. These amounts were partially offset by non-deductible stock-based compensation, tax on global intangible low-taxed income and an intercompany sale of intellectual property.

For the year ended December 31, 2021, our effective income tax rate was lower than the federal statutory tax rate due to foreign income taxed at lower rates, the excess tax benefit related to stock-based compensation and the benefit of U.S. federal, state and foreign research and development credits. These amounts were partially offset by non-deductible stock-based compensation and state income taxes.

Our effective income tax rate may fluctuate between fiscal years and from quarter to quarter due to items arising from discrete events, such as tax benefits from the settlement of employee equity awards, tax law changes and settlements of tax audits and assessments. Our effective income tax rate is also impacted by, and may fluctuate in any given period because of, the composition of income in foreign jurisdictions where tax rates differ depending on the local statutory rates. The Organisation for Economic Co-operation and Development (“OECD”) and participating OECD member countries continue to work toward the enactment of a 15% global minimum corporate tax rate. The global minimum tax is a significant structural change to the international taxation framework, which is expected to affect us beginning in 2024. Although global enactment has begun, the OECD and participating countries continue to work on defining the underlying rules and administrative procedures. We are currently monitoring these developments and evaluating the impact. While we anticipate that our effective income tax rate will increase as a result of these changes, we do not expect it to have a material impact to our results of operations or cash flows.

See "Risk Factors" and refer to Note 19 to the consolidated financial statements included elsewhere in this annual report on Form 10-K for additional information regarding unrecognized tax benefits that, if recognized, would impact the effective income tax rate in the next 12 months.

(Gain) Loss from Equity Method Investment

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20232022% Change20222021% Change
(Gain) loss from equity method investment$(1,475)$7,635(119.3)%$7,635$14,008(45.5)%
As a percentage of revenue%0.2%0.2%0.4%

The amounts reflected in (gain) loss from equity method investment relate to our investment with MUFG in a joint venture, GO-NET. GO-NET intended to operate a blockchain-based online payment network. In February 2022, MUFG, the majority owner of GO-NET, announced it was preparing to suspend the operations of GO-NET and to ultimately liquidate it. The gain from equity method investment in 2023 was related to the liquidation and disbursement of our portion of GO-NET's remaining assets, which were previously impaired. The loss from equity method investment in 2022 was the result of our impairment of our investment in GO-NET in the first quarter of 2022 since the operations will no longer generate future cash flows. We recorded a loss of $14.0 million in 2021, which reflects our share of the losses incurred by GO-NET during that year. We do not expect additional activity related to this investment.

Non-GAAP Financial Measures

In addition to providing financial measurements based on generally accepted accounting principles in the United States of America ("GAAP") we provide additional financial metrics that are not prepared in accordance with GAAP ("non-GAAP financial measures"). Management uses non-GAAP financial measures, in addition to GAAP financial measures, to understand and compare operating results across accounting periods, for financial and operational decision making, for planning and forecasting purposes, to measure executive compensation and to evaluate our financial performance. These non-GAAP financial measures are non-GAAP income from operations, non-GAAP operating margin, non-GAAP net income, non-GAAP net income per diluted share, Adjusted EBITDA, Adjusted EBITDA margin, capital expenditures and impact of foreign currency exchange rates, as discussed below.

Management believes that these non-GAAP financial measures reflect our ongoing business in a manner that allows for meaningful comparisons and analysis of trends in the business, as they facilitate comparison of financial results across accounting periods and to those of our peer companies. Management also believes that these non-GAAP financial measures enable investors to evaluate our operating results and future prospects in the same manner as management. These non-GAAP

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financial measures may exclude expenses and gains that may be unusual in nature, infrequent or not reflective of our ongoing operating results.

The non-GAAP financial measures do not replace the presentation of our GAAP financial measures and should only be used as a supplement to, not as a substitute for, our financial results presented in accordance with GAAP.

The non-GAAP adjustments, and our basis for excluding them from non-GAAP financial measures, are outlined below:

•Amortization of acquired intangible assets – We have incurred amortization of intangible assets, included in our GAAP financial statements, related to various acquisitions we have made. The amount of an acquisition's purchase price allocated to intangible assets and term of its related amortization can vary significantly and is unique to each acquisition; therefore, we exclude amortization of acquired intangible assets from our non-GAAP financial measures to provide investors with a consistent basis for comparing pre- and post-acquisition operating results.

•Stock-based compensation and amortization of capitalized stock-based compensation – Although stock-based compensation is an important aspect of the compensation paid to our employees, the grant date fair value varies based on the stock price at the time of grant, varying valuation methodologies, subjective assumptions and the variety of award types. This makes the comparison of our current financial results to previous and future periods difficult to interpret; therefore, we believe it is useful to exclude stock-based compensation and amortization of capitalized stock-based compensation from our non-GAAP financial measures in order to highlight the performance of our core business and to be consistent with the way many investors evaluate our performance and compare our operating results to peer companies.

•Acquisition-related costs – Acquisition-related costs include transaction fees, advisory fees, due diligence costs and other direct costs associated with strategic activities, as well as certain additional compensation costs payable to employees acquired from the Linode acquisition if employed for a certain period of time. The additional compensation cost was initiated by and determined by the seller and is in addition to normal levels of compensation, including retention programs, offered by Akamai. Acquisition-related costs are impacted by the timing and size of the acquisitions, and we exclude acquisition-related costs from our non-GAAP financial measures to provide a useful comparison of operating results to prior periods and to peer companies because such amounts vary significantly based on the magnitude of our acquisition transactions and do not reflect our core operations.

•Restructuring charge – We have incurred restructuring charges from programs that have significantly changed either the scope of the business undertaken by us or the manner in which that business is conducted. These charges include severance and related expenses for workforce reductions, impairments of long-lived assets that will no longer be used in operations (including right-of-use assets, other facility-related property and equipment and internal-use software) and termination fees for any contracts cancelled as part of these programs. We exclude these items from our non-GAAP financial measures when evaluating our continuing business performance as such items vary significantly based on the magnitude of the restructuring action and do not reflect expected future operating expenses. In addition, these charges do not necessarily provide meaningful insight into the fundamentals of current or past operations of our business.

•Amortization of debt discount and issuance costs and amortization of capitalized interest expense – We have convertible senior notes outstanding that mature in 2029, 2027 and 2025. The issuance costs of the convertible senior notes are amortized to interest expense and are excluded from our non-GAAP results because management believes the non-cash amortization expense is not representative of ongoing operating performance. The imputed interest rates of the 2027 and 2025 convertible senior notes were 3.10% and 4.26%, respectively. This is a result of the debt discounts recorded for the conversion features that, prior to January 1, 2022, were required to be separately accounted for as equity under GAAP, thereby reducing the carrying values of the convertible debt instruments. The debt discounts were amortized as interest expense. On January 1, 2022, we adopted the new guidance for accounting for convertible instruments. This new guidance eliminated separate accounting for the equity portion, and thus the amortization of the debt discount that was recorded as interest expense. Prior to January 1, 2022, we excluded this non-cash interest expense from our non-GAAP results because it was not representative of ongoing operating performance. After January 1, 2022, this interest expense is no longer included in or excluded from GAAP or non-GAAP results.

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•Gains and losses on investments – We have recorded gains and losses from the disposition, changes to fair value and impairment of certain investments. We believe excluding these amounts from our non-GAAP financial measures is useful to investors as the types of events giving rise to these gains and losses are not representative of our core business operations and ongoing operating performance.

•Gains and losses from equity method investment – We record income or losses on our share of earnings and losses from our equity method investment, and any gains from returns of investments or impairments. We exclude such income and losses because we do not have direct control over the operations of the investment and the related income and losses are not representative of our core business operations.

•Income tax effect of non-GAAP adjustments and certain discrete tax items – The non-GAAP adjustments described above are reported on a pre-tax basis. The income tax effect of non-GAAP adjustments is the difference between GAAP and non-GAAP income tax expense. Non-GAAP income tax expense is computed on non-GAAP pre-tax income (GAAP pre-tax income adjusted for non-GAAP adjustments) and excludes certain discrete tax items (such as the impact of intercompany sales of intellectual property related to our acquisitions), if any. We believe that applying the non-GAAP adjustments and their related income tax effect allows us to highlight income attributable to our core operations.

The following table reconciles GAAP income from operations to non-GAAP income from operations and non-GAAP operating margin for the years ended December 31, 2023, 2022 and 2021 (in thousands):

202320222021
Income from operations$637,338$676,274$783,148
Amortization of acquired intangible assets66,75164,98348,019
Stock-based compensation328,467217,185202,759
Amortization of capitalized stock-based compensation and capitalized interest expense32,98131,76835,894
Restructuring charge56,64313,52910,737
Acquisition-related costs13,34529,04913,317
Non-GAAP income from operations$1,135,525$1,032,788$1,093,874
GAAP operating margin16.7%18.7%22.6%
Non-GAAP operating margin29.8%28.6%31.6%

The following table reconciles GAAP net income to non-GAAP net income for the years ended December 31, 2023, 2022 and 2021 (in thousands):

202320222021
Net income$547,629$523,672$651,642
Amortization of acquired intangible assets66,75164,98348,019
Stock-based compensation328,467217,185202,759
Amortization of capitalized stock-based compensation and capitalized interest expense32,98131,76835,894
Restructuring charge56,64313,52910,737
Acquisition-related costs13,34529,04913,317
Amortization of debt discount and issuance costs5,3414,39566,025
(Gain) loss on investments(311)8,260(3,680)
(Gain) loss from equity method investment(1,475)7,63514,008
Income tax effect of above non-GAAP adjustments and certain discrete tax items(89,364)(42,768)(96,164)
Non-GAAP net income$960,007$857,708$942,557

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The following table reconciles GAAP net income per diluted share to non-GAAP net income per diluted share for the years ended December 31, 2023, 2022 and 2021 (in thousands, except per share data):

202320222021
GAAP net income per diluted share$3.52$3.26$3.93
Adjustments to net income:
Amortization of acquired intangible assets0.430.400.29
Stock-based compensation2.111.351.22
Amortization of capitalized stock-based compensation and capitalized interest expense0.210.200.22
Restructuring charge0.360.080.06
Acquisition-related costs0.090.180.08
Amortization of debt discount and issuance costs0.030.030.40
(Gain) loss on investments0.05(0.02)
(Gain) loss from equity method investment(0.01)0.050.08
Income tax effect of above non-GAAP adjustments and certain discrete tax items(0.58)(0.27)(0.58)
Adjustment for shares (1)0.020.020.06
Non-GAAP net income per diluted share (2)$6.20$5.37$5.74
Shares used in GAAP per diluted share calculations155,397160,467165,804
Impact of benefit from note hedge transactions (1)(574)(720)(1,600)
Shares used in non-GAAP per diluted share calculations (1)154,823159,747164,204

(1) Shares used in non-GAAP per diluted share calculations have been adjusted for the periods presented for the benefit of our note hedge transactions. During the periods presented, our average stock price was in excess of $95.10, which is the initial conversion price of our convertible senior notes due in 2025. See further discussion below.

(2) May not foot due to rounding.

Non-GAAP net income per diluted share is calculated as non-GAAP net income divided by weighted average diluted common shares outstanding. Diluted weighted average common shares outstanding are adjusted in non-GAAP per share calculations for the shares that would be delivered to us pursuant to the note hedge transactions entered into in connection with the issuance of $1,265 million of convertible senior notes due 2029 and the issuances of $1,150 million of convertible senior notes due 2027 and 2025, respectively. Under GAAP, shares delivered under hedge transactions are not considered offsetting shares in the fully-diluted share calculation until they are delivered. However, we would receive a benefit from the note hedge transactions and would not allow the dilution to occur, so management believes that adjusting for this benefit provides a meaningful view of operating performance. With respect to the convertible senior notes due in each of 2029, 2027 and 2025, unless our weighted average stock price is greater than $126.31, $116.18 and $95.10, respectively, the initial conversion prices, there will be no difference between GAAP and non-GAAP diluted weighted average common shares outstanding.

We consider Adjusted EBITDA to be another important indicator of the operational strength and performance of our business and a good measure of our historical operating trends. Adjusted EBITDA eliminates items that we do not consider to be part of our core operations. We define Adjusted EBITDA as GAAP net income excluding the following items: interest and marketable securities income and losses; income taxes; depreciation and amortization of tangible and intangible assets; stock-based compensation; amortization of capitalized stock-based compensation; acquisition-related costs; restructuring charges; foreign exchange gains and losses; interest expense; amortization of capitalized interest expense; certain gains and losses on investments; income and losses from equity method investments; and other non-recurring or unusual items that may arise from time to time. Adjusted EBITDA margin represents Adjusted EBITDA stated as a percentage of revenue.

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The following table reconciles GAAP net income to Adjusted EBITDA and Adjusted EBITDA margin for the years ended December 31, 2023, 2022 and 2021 (in thousands):

202320222021
Net income$547,629$523,672$651,642
Amortization of acquired intangible assets66,75164,98348,019
Stock-based compensation328,467217,185202,759
Amortization of capitalized stock-based compensation and capitalized interest expense32,98131,76835,894
Restructuring charge56,64313,52910,737
Acquisition-related costs13,34529,04913,317
Interest and marketable securities income, net(45,194)(3,258)(15,620)
Interest expense17,70911,09672,332
Provision for income taxes106,373126,69662,571
Depreciation and amortization472,035496,909467,048
(Gain) loss on investments(311)8,260(3,680)
(Gain) loss from equity method investment(1,475)7,63514,008
Other expense, net12,6072,1731,895
Adjusted EBITDA$1,607,560$1,529,697$1,560,922
Net income margin14.4%14.5%18.8%
Adjusted EBITDA margin42.2%42.3%45.1%

Impact of Foreign Currency Exchange Rates

Revenue and earnings from our international operations have historically been an important contributor to our financial results. Consequently, our financial results have been impacted, and management expects they will continue to be impacted, by fluctuations in foreign currency exchange rates. For example, when the local currencies of our international subsidiaries weaken, generally our consolidated results stated in U.S. dollars are negatively impacted.

Because exchange rates are a meaningful factor in understanding period-to-period comparisons, management believes the presentation of the impact of foreign currency exchange rates on revenue and earnings enhances the understanding of our financial results and evaluation of performance in comparison to prior periods. The dollar impact of changes in foreign currency exchange rates presented is calculated by translating current period results using monthly average foreign currency exchange rates from the comparative period and comparing them to the reported amount. The percentage change at constant currency presented is calculated by comparing the prior period amounts as reported and the current period amounts translated using the same monthly average foreign currency exchange rates from the comparative period.

Liquidity and Capital Resources

To date, we have financed our operations primarily through public and private sales of debt and equity securities and cash generated by operations. As of December 31, 2023, our cash, cash equivalents and marketable securities, which primarily consisted of corporate bonds, U.S. government agency obligations and money market funds, totaled $2.3 billion. We place our cash investments in instruments that meet high-quality credit standards, as specified in our investment policy. Our investment policy also limits the amount of our credit exposure to any one issue or issuer and seeks to manage these assets to achieve our goals of preserving principal and maintaining adequate liquidity at all times.

Changes in cash, cash equivalents and marketable securities are dependent upon changes in, among other things, working capital items such as accounts receivable, deferred revenue, accounts payable, various accrued expenses and operating lease obligations, as well as changes in our capital and financial structure due to common stock repurchases, debt repayments and issuances, acquisitions, purchases and sales of marketable securities, cash paid for acquisitions and similar events. We believe that our strong balance sheet and cash position are important competitive differentiators that provide the financial stability and flexibility to enable us to continue to make investments at opportune times. We expect to continue to evaluate strategic investments to strengthen our business.

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As of December 31, 2023, we had cash and cash equivalents of $232.9 million held in accounts outside the U.S. The U.S. Tax Cuts and Jobs Act establishes a territorial tax system in the U.S., which provides companies with the potential ability to repatriate earnings with minimal U.S. federal income tax impact. As a result, our liquidity is not expected to be materially impacted by the amount of cash and cash equivalents held in accounts outside the U.S.

Cash Provided by Operating Activities

For the Years Ended December 31,
(in thousands)202320222021
Net income$547,629$523,672$651,642
Non-cash reconciling items included in net income931,507756,321793,445
Changes in operating assets and liabilities(130,697)(5,317)(40,524)
Net cash flows provided by operating activities$1,348,439$1,274,676$1,404,563

The increase in cash provided by operating activities for 2023 as compared to 2022 was due to increased profitability in 2023, as well as cash paid for income taxes related to an intercompany sale of intellectual property and additional compensation costs paid to employees acquired from the Linode acquisition based on an agreement with the acquiree, both of which occurred in 2022 and did not re-occur in 2023.

The decrease in cash provided by operating activities for 2022 as compared to 2021 was primarily due to income taxes paid on an intercompany sale of intellectual property, lower profitability and timing of vendor payments.

Cash Used in Investing Activities

For the Years Ended December 31,
(in thousands)202320222021
Cash paid for business acquisitions, net of cash acquired$(106,171)$(872,091)$(598,825)
Cash paid for asset acquisitions(120,985)
Purchases of property and equipment and capitalization of internal-use software development costs(730,040)(458,302)(545,230)
Net marketable securities activity(884,973)714,205501,478
Other, net(6,069)(6,122)(4,322)
Net cash used in investing activities$(1,848,238)$(622,310)$(646,899)

The increase in cash used in investing activities in 2023 as compared to 2022 was due to an increase in purchases of marketable securities with the proceeds from our August 2023 issuance of convertible senior notes and purchases of property and equipment related to our compute infrastructure build-out. These increases were partially offset by cash paid for the acquisition of Linode in March 2022 and by net marketable securities activity as we sold marketable securities during 2022 to fund the acquisition.

The decrease in cash used in investing activities in 2022 as compared to 2021 was due to a decrease in purchases of marketable securities, as we did not reinvest our matured securities in order to fund our acquisition of Linode in March 2022, and a decrease in purchases of property and equipment as we reduced spending related to our delivery solutions as we focused on higher growth initiatives, partially offset by cash paid for the acquisition of Linode.

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Cash Provided by (Used in) Financing Activities

For the Years Ended December 31,
(in thousands)202320222021
Activity related to convertible senior notes$1,101,028$$
Activity related to stock-based compensation(3,243)(25,774)(39,480)
Repurchases of common stock(654,046)(608,010)(522,255)
Other, net(360)(393)(268)
Net cash provided by (used in) financing activities$443,379$(634,177)$(562,003)

The increase in cash provided by financing activities in 2023 as compared to 2022 was due to the net proceeds from our convertible senior notes due 2029 that were issued in August 2023. This increase was partially offset by an increase in repurchases of our common stock.

The increase in cash used in financing activities in 2022 as compared to 2021 was primarily the result of increased repurchases of our common stock.

Our board of directors authorized a share repurchase program that is effective from January 2022 through December 2024, and during 2023, 2022 and 2021, we repurchased 7.8 million, 6.4 million and 4.7 million shares of our common stock, respectively, at an average price per share of $83.83, $94.96 and $109.97, respectively. Our goal for the share repurchase program is to offset the dilution created by our employee equity compensation programs over time and provide the flexibility to return capital to stockholders as business and market conditions warrant, while still preserving our ability to pursue other strategic opportunities. The timing and amount of any future common stock repurchases will be determined by our management based on its evaluation of market conditions and other factors.

Convertible Senior Notes

In August 2023, we issued $1,265.0 million in principal amount of convertible senior notes due 2029 and entered into related convertible note hedge and warrant transactions. We intend to use a portion of the net proceeds to repay at maturity our $1,150.0 million outstanding aggregate principle amount of convertible senior notes due in 2025. Additionally, we used a portion of the net proceeds of the offering for repurchases of our common stock.

As of December 31, 2023, we had $3,565.0 million of convertible senior notes outstanding that are senior unsecured obligations and bear interest payable semi-annually in arrears. These notes mature between May 2025 and February 2029. The terms of the notes and the hedge and warrant transactions are discussed more fully in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K.

Revolving Credit Facility

In November 2022, we entered into a five-year revolving credit agreement ("2022 Credit Agreement") which replaced the revolving credit agreement that we entered into in May 2018. The 2022 Credit Agreement allows us to borrow up to $500.0 million at various interest rates and contains customary representations and warranties, affirmative and negative covenants and events of default. As of December 31, 2023, we were in compliance with all covenants. There were no outstanding borrowings under the 2022 Credit Agreement as of December 31, 2023. The terms of the revolving credit agreements are discussed more fully in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K.

Operating Leases

We have entered into operating leases for real estate assets related to office space and co-location assets related to space or racks at co-location facilities and related equipment for our servers and other networking equipment. As of December 31, 2023 the total obligation under these agreements was $1,144.2 million, of which $224.2 million is payable in the next 12 months. We have also executed additional operating leases that will commence in 2024 for $195.0 million. The operating lease terms and maturities are discussed more fully in Note 12 to the consolidated financial statements included elsewhere in this annual report on Form 10-K

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Purchase Commitments

We enter into long-term agreements with network and internet service providers for bandwidth, as well as execute purchase orders for the purchase of goods or services in the ordinary course of business, which may contain minimum commitments. These minimum commitments may vary from period to period depending on the timing and length of contract renewals with our vendors, and on our plans for network expansion, including our expansion plans related to our compute business.

Liquidity Outlook

Based on our present business plan, we expect our current cash, cash equivalents and marketable securities balances and our forecasted cash flows from operations to be sufficient to meet our foreseeable cash needs for at least the next 12 months. Our foreseeable cash needs, in addition to our recurring operating costs, include our expected capital expenditures, investments in information technology, potential strategic acquisitions, anticipated share repurchases, lease and purchase commitments and settlements of other liabilities.

Off-Balance Sheet Arrangements

We have entered into indemnification agreements with third parties, including vendors, customers, landlords, our officers and directors, shareholders of acquired companies, joint venture partners and third parties to which we license technology. Generally, these indemnification agreements require us to reimburse losses suffered by a third party due to various events, such as lawsuits arising from patent or copyright infringement or our negligence. These indemnification obligations are considered off-balance sheet arrangements in accordance with the authoritative guidance for guarantor’s accounting and disclosure requirements for guarantees, including indirect guarantees of indebtedness of others. See Note 13 to our consolidated financial statements included elsewhere in this annual report on Form 10-K for further discussion of these indemnification agreements. The fair value of guarantees issued or modified during 2023 and 2022 was determined to be immaterial.

Significant Accounting Policies and Estimates

See Note 2 to the consolidated financial statements included elsewhere in this annual report on Form 10-K for information regarding recent and newly adopted accounting pronouncements.

Application of Critical Accounting Policies and Estimates

Overview

Our MD&A is based upon our consolidated financial statements, which have been prepared in accordance with GAAP. These principles require us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, cash flow and related disclosure of contingent assets and liabilities. Our estimates include those related to revenue recognition, accounts receivable and related reserves, valuation and impairment of marketable securities, capitalized internal-use software development costs, goodwill and acquired intangible assets, income tax reserves, impairment and useful lives of long-lived assets and stock-based compensation. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances at the time such estimates are made. Actual results may differ from these estimates. For a complete description of our significant accounting policies, see Note 2 to our consolidated financial statements included elsewhere in this annual report on Form 10-K.

Definitions

We define our critical accounting policies as those policies that require us to make subjective estimates and judgments about matters that are uncertain and are likely to have a material impact on our consolidated financial statements. Our estimates are based upon assumptions and judgments about matters that are highly uncertain at the time an accounting estimate is made and applied and require us to assess a range of potential outcomes.

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Review of Critical Accounting Policies and Estimates

Revenue Recognition

Our contracts with customers sometimes include promises to transfer multiple services to a customer. Determining whether services are distinct performance obligations often requires the exercise of judgment by management. Advanced features that enhance a main product or service and are highly interrelated are generally not considered distinct; rather, they are combined with the service they relate to into one performance obligation. Different determinations related to combining services into performance obligations could result in differences in the timing and amount of revenue recognized in a period.

Determination of the standalone selling price ("SSP") for each distinct performance obligation in a contract also requires the exercise of judgment by management. SSP is based on observable inputs such as the price we charge for the service when sold separately, or the discounted list price per management’s approved price list. In cases where services are not sold separately or price list rates are not available, a cost-plus-margin approach or adjusted market approach is used to determine SSP. Changes to SSP could result in differences in the allocation of transaction price among performance obligations, which could result in differences in the timing and amount of revenue recognized in a period.

From time to time, we enter into contracts to sell services or license technology to unrelated enterprises at or about the same time that we enter into contracts to purchase products or services from the same enterprises. Consideration payable to a customer is reviewed as part of the transaction price. If the payment to the customer does not represent payment for a distinct service, revenue is recognized only up to the net amount of consideration after customer payment obligations are considered. Different determinations on whether a payment represents a distinct service could result in differences in the amount of revenue recognized.

We may also resell licenses or services of third parties. If we are acting as an agent in an arrangement with a customer to provide third party services, the transaction price reflects only the net amount to which we will be entitled, after accounting for payments made to the third party responsible for satisfying the performance obligation. Different determinations on whether we are acting as an agent or a principal could change the amount of revenue recognized.

Accounts Receivable and Related Reserves

Trade accounts receivable are recorded at the invoiced amounts and do not bear interest. In addition to trade accounts receivable, our accounts receivable balance includes unbilled accounts that represent revenue recorded for customers that is typically billed within one month. We record allowances against our accounts receivable balance, primarily for current expected credit losses. Increases and decreases in the allowance for current expected credit losses are included as a component of general and administrative expense in the consolidated statements of income.

Estimates are used in determining our allowance for current expected credit losses using historical loss rates for the previous twelve months as well as expectations about the future where we have been able to develop forecasts to supports our estimates. In addition, the allowance for current expected credit losses considers outstanding balances on a customer-specific, account-by-account basis. We assess collectability based upon a review of customer receivables from prior sales with collection issues where we no longer believe that the customer has the ability to pay for services previously provided. We also perform ongoing credit evaluations of our customers. If such an evaluation indicates that payment is no longer reasonably assured for services provided, any future services provided to that customer will result in the creation of a cash basis reserve until we receive consistent payments.

Valuation and Impairment of Marketable Securities

We measure the fair value of our financial assets and liabilities at the end of each reporting period. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. We have certain financial assets and liabilities recorded at fair value (principally cash equivalents and short- and long-term marketable securities) that have been classified as Level 1, 2 or 3 within the fair value hierarchy. Fair values determined by Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that we can access at the reporting date. Fair values determined by Level 2 inputs utilize data points other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Fair values determined by Level 3 inputs are based on unobservable data points for the asset or liability.

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Marketable securities are considered to be impaired when a decline in fair value below cost basis is determined to be other-than-temporary. We periodically evaluate whether a decline in fair value below cost basis is other-than-temporary by considering available evidence regarding these investments including, among other factors, the duration of the period that, and extent to which, the fair value is less than cost basis; the financial health of, and business outlook for, the issuer, including industry and sector performance and operational and financing cash flow factors; overall market conditions and trends; and our intent and ability to retain our investment in the security for a period of time sufficient to allow for an anticipated recovery in market value. Once a decline in fair value is determined to be other-than-temporary, a write-down is recorded and a new cost basis in the security is established. Assessing the above factors involves inherent uncertainty. Write-downs, if recorded, could be materially different from the actual market performance of marketable securities in our portfolio if, among other things, relevant information related to our investments and marketable securities was not publicly available or other factors not considered by us would have been relevant to the determination of impairment.

Impairment of Long-Lived Assets

We review our long-lived assets, such as property and equipment, operating lease right-of-use assets and acquired intangible assets, for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Events that would trigger an impairment review include a change in the use of the asset or forecasted negative cash flows related to the asset. When such events occur, we compare the carrying amount of the asset to the undiscounted expected future cash flows related to the asset. If this comparison indicates that impairment is present, the amount of the impairment is calculated as the difference between the carrying amount and the fair value of the asset. If a readily determinable market price does not exist, fair value is estimated using discounted expected cash flows attributable to the asset. The estimates required to apply this accounting policy include forecasted usage of the long-lived assets, the useful lives of these assets and expected future cash flows. Changes in these estimates could materially impact results from operations.

Goodwill and Acquired Intangible Assets

We test goodwill for impairment on an annual basis, as of December 31, or more frequently if events or changes in circumstances indicate that the asset might be impaired. We have concluded that we have one reporting unit and that our chief operating decision maker is our chief executive officer and the executive management team. We have assigned the entire balance of goodwill to our one reporting unit. The fair value of the reporting unit was based on our market capitalization as of each of December 31, 2023 and 2022, and it was substantially in excess of the carrying value of the reporting unit at each date.

Acquired intangible assets consist of completed technologies, customer relationships, trademarks and trade names, non-compete agreements and acquired license rights. We engage third party valuation specialists to assist us with the initial measurement of the fair value of acquired intangible assets. Fair value and useful life determinations may be based on, among other factors, estimates of future expected cash flows, royalty cost savings and appropriate discount rates used in calculating present values. The value of our acquired intangible assets could be different if we had used different assumption. Acquired intangible assets, other than goodwill, are amortized over their estimated useful lives based upon the estimated economic value derived from the related intangible assets.

Income Taxes

Our provision for income taxes is comprised of a current and a deferred portion. The current income tax provision is calculated as the estimated taxes payable or refundable on tax returns for the current year. The deferred income tax provision is calculated for the estimated future tax effects attributable to temporary differences and carryforwards by using expected tax rates in effect in the years during which the differences are expected to reverse or the carryforwards are expected to be realized.

We currently have net deferred tax assets, comprised of net operating loss ("NOL"), carryforwards, tax credit carryforwards and deductible temporary differences. Our management periodically weighs the positive and negative evidence to determine if it is more-likely-than-not that some or all of the deferred tax assets will be realized. In determining our net deferred tax assets and valuation allowances, annualized effective tax rates and cash paid for income taxes, management is required to make judgments and estimates about domestic and foreign profitability, the timing and extent of the utilization of NOL carryforwards, applicable tax rates, transfer pricing methodologies and tax planning strategies. Judgments and estimates related to our projections and assumptions are inherently uncertain; therefore, actual results could differ materially from our projections.

We have recorded certain tax reserves to address potential exposures involving our income tax positions. These potential tax liabilities result from the varying application of statutes, rules, regulations and interpretations by different taxing jurisdictions. Our estimate of the value of our tax reserves contains assumptions based on past experiences and judgments about

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the interpretation of statutes, rules and regulations by taxing jurisdictions. It is possible that the costs of the ultimate tax liability or benefit from these matters may be more or less than the amount that we estimated.

Uncertainty in income taxes is recognized in our consolidated financial statements using a two-step process to determine the amount of tax benefit to be recognized. First, the tax position must be evaluated to determine the likelihood that it will be sustained upon external examination. If the tax position is deemed more-likely-than-not to be sustained based on technical merit, the tax position is then assessed to determine the amount of benefit to recognize in the financial statements. The amount of the benefit that may be recognized is the largest amount that we believe has a greater than 50% likelihood of being realized upon ultimate settlement.

Accounting for Stock-Based Compensation

We issue stock awards as part of our compensation program which includes stock options, restricted stock, restricted stock units, deferred stock units and employee stock purchases related to our employee stock purchase plan. For equity classified awards, we measure the fair value of these awards at the grant date and recognize such fair value as expense over the vesting period. For liability classified awards, the fair value is determined each reporting period beginning at the grant date until final vesting. We have selected the Black-Scholes option pricing model to determine the fair value of stock option awards and the Monte Carlo simulation model to determine the fair value of market-based restricted stock unit awards. Determining the fair value of stock-based awards at the grant date requires judgment, including estimating the expected life of the stock awards and the volatility of the underlying common stock. Our assumptions may differ from those used in prior periods. Changes to the assumptions may have an impact on the fair value of stock awards, which could have an impact on our financial statements. Judgment is also required in estimating the number of stock awards that are expected to be forfeited. Should our actual forfeiture rates differ significantly from our estimates, our stock-based compensation expense and results of operations could be materially impacted. In addition, for awards that vest and become exercisable only upon achievement of specified performance conditions, we make judgments and estimates each quarter about the probability that such performance conditions will be met or achieved. Changes to the estimates we make from time to time may have an impact on our stock-based compensation expense and our results of operations.

Capitalized Internal-Use Software Costs

We capitalize salaries and related costs, including stock-based compensation, of employees and consultants who devote time to the development of internal-use software development projects, as well as interest expense related to our convertible senior notes. Capitalization begins during the application development stage, once the preliminary project stage has been completed. If a project constitutes an enhancement to previously-developed software, we assess whether the enhancement creates additional functionality to the software, thus qualifying the work incurred for capitalization. Once the project is available for general release, capitalization ceases and we estimate the useful life of the asset and begin amortization. We periodically assess whether triggering events are present to review internal-use software for impairment. Changes in our estimates related to internal-use software would increase or decrease operating expenses or amortization recorded during the period.

FY 2022 10-K MD&A

SEC filing source: 0001086222-23-000078.

Extracted structurally from real Item 7 body heading to real Item 7A/8 boundary. Confidence: high. Filing date: 2023-02-28. Report date: 2022-12-31.

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

This Management’s Discussion and Analysis of Financial Condition and Results of Operations ("MD&A"), should be read in conjunction with our consolidated financial statements and notes thereto that appear elsewhere in this annual report on Form 10-K. See “Risk Factors” elsewhere in this annual report on Form 10-K for a discussion of certain risks associated with our business. The following discussion contains forward-looking statements. The forward-looking statements do not include the potential impact of any mergers, acquisitions, divestitures or other events that may be announced after the date hereof.

Overview

We provide solutions to power and protect life online. The key factors that influence our financial success are our ability to build on recurring revenue commitments for our security and performance offerings, increase traffic on our network, continue to develop, scale and successfully bring to market our cloud computing platform and compute-to-edge solutions that meet the needs of professional users and enterprises, effectively manage the prices we charge for our solutions, develop new products and appropriately manage our capital spending and other expenses. The purpose of this discussion and analysis section is to provide material information relevant to an assessment of our financial condition and results of operations from management’s perspective, including to describe and explain key trends, events and other factors that impacted our reported results and that are likely to impact our future performance.

Revenue

For most of our solutions, our customers commit to contracts having terms of a year or longer, which allows us to have a consistent and predictable base level of revenue. In addition to a base level of revenue, we are also dependent on delivery customers, and some cloud computing customers, where usage of our solutions is more variable. As a result, our revenue is impacted by the amount of traffic we serve on our network or the usage of cloud computing services, the rate of adoption of gaming, social media and video platform offerings, the timing and variability of customer-specific one-time events and geopolitical, economic and other developments that impact our customers' businesses. Seasonal variations that impact traffic on our network, such as holiday-related activities, can cause revenue fluctuations from quarter to quarter. Over the longer term, our ability to expand our product portfolio and to effectively manage the prices we charge for our solutions are key factors impacting our revenue growth.

We have observed the following trends related to our revenue in recent years:

•Increased sales of our security solutions, led by application security solutions and segmentation solutions from our Guardicore acquisition, and more recently, increased sales of our compute solutions primarily attributable to our acquisition of Linode in the first quarter of 2022, have made a significant contribution to revenue growth. During 2022, security and compute revenue represented over half of our total revenue. We plan to continue to invest in these areas with a focus on further enhancing our product portfolios and extending our go-to-market capabilities, particularly in certain markets and through our channel partners.

•During 2020 and early 2021, we saw a dramatic increase in traffic growth on our network due to the shutdowns and restrictions related to the COVID-19 pandemic. While traffic on our network continues to grow as compared to prior years, the rate of traffic growth has decelerated. Our delivery revenue was negatively impacted by the deceleration, which we believe is partly due to the rollback of COVID-19 pandemic-related restrictions. We expect traffic growth rates in 2023 to continue to be below historical levels as we and other companies manage through a time of economic headwinds and uncertainty.

•The prices paid by some of our customers have declined in recent years due to competition and contract renewals, which negatively impacts our revenue growth rates. We have been able to mitigate some of the negative impacts to our revenue growth rates by upselling incremental solutions to our existing customers. We are taking steps to try to maintain alignment between customer traffic volumes and unit pricing.

•Revenue from our international operations has generally been growing at a faster pace in recent years than from our U.S. operations, particularly from cross-selling of incremental solutions. Because we publicly report in U.S. dollars, and due to the strengthening U.S. dollar, our reported revenue results have been negatively impacted during 2022.

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•We have experienced variations in certain types of revenue from quarter to quarter. In particular, we typically experience higher revenue in the fourth quarter of each year for some of our solutions as a result of holiday season activity. In addition, we experience quarterly variations in revenue attributable to, among other things, the nature and timing of software and gaming releases by our customers; whether there are large live sporting or other events or situations that impact the amount of media traffic on our network; the timing of large customer contract renewals; and the frequency and timing of purchases of custom solutions or licensed software.

Expenses

Our level of profitability is also impacted by our expenses, including direct costs to support our revenue such as bandwidth and co-location costs, which includes energy to power our network. We have observed the following trends related to our profitability in recent years:

•Network bandwidth costs represent a significant portion of our cost of revenue. Historically, we have been able to mitigate increases in these costs by reducing our network bandwidth costs per unit and investing in internal-use software development to improve the performance and efficiency of our network. We will need to continue to effectively manage our bandwidth costs to maintain current levels of profitability.

•Co-location costs are also a significant portion of our cost of revenue. As we build out our new compute locations to provide us with the ability to scale our platform, we expect to enter into longer term leases that include certain financial commitments in order to achieve more favorable unit economics. The costs of the financial commitments are straight-lined over the life of the lease. We continue to improve our internal-use software and remain disciplined in managing our hardware deployments, particularly for our delivery platform, which enables us to use servers more efficiently. With these efficiencies we have been able to minimize the impact of rising energy costs, particularly in Europe. We expect to continue to scale our network in the future, which will allow us to continue to effectively manage our co-location costs to maintain current levels of profitability.

•Network build-out and supporting service costs represent another significant portion of our cost of revenue. These costs include maintenance and supporting services incurred as we continue to build-out our compute infrastructure and maintain our global network, and costs of third-party cloud providers used for some of our operations. We have seen these costs increase in recent years, as a result of our network expansion and increased use of third-party cloud services. We expect this trend to continue in the near-term as we invest in our network to support our compute solutions, including migrating from third-party cloud providers to our own cloud solutions. We will need to effectively manage our network build-out and supporting costs to maintain current levels of profitability.

•Our employees are core to the operations of our business, and payroll and related costs, including stock-based compensation, is one of our largest expenses. It is important to the success of operations that we offer competitive compensation packages. However, we remain disciplined in allocating our resources to support our faster growing security and compute solutions, including maintaining operational efficiencies to mitigate the rising cost of talent. We are prioritizing our hiring to our high growth areas. In addition, we are re-tasking certain employees to develop, deploy and support go-to-market efforts for our compute solutions.

•Depreciation expense related to our network equipment also contributes to our overall expense levels. In recent years we have invested in our network as traffic levels have increased, which increased our capital expenditures and resulting depreciation expense. We plan to continue to make investments in capital expenditures, however, the focus is to further invest in support of our faster growing compute solutions. Due to the software and hardware initiatives we have undertaken to manage our global network more efficiently, we expect the useful lives of our network servers to be extended. As a result of our expected investments in our network, particularly with respect to cloud computing, we expect depreciation to increase, which will be partially offset by the expected change in useful lives of our network servers.

•Growth in our international operations incrementally increases our exposure to foreign currency fluctuations. In 2022, due to the strengthening U.S. dollar, our expenses that are denominated in foreign currencies have been positively impacted and partially offset the negative impact on revenue, resulting in a negative overall impact on our operating margins.

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Recent Acquisitions

In March 2022, we acquired all of the outstanding equity interests of Linode for $898.5 million in cash. Linode is an infrastructure-as-a-service platform provider that allows for developer-friendly cloud computing capabilities. The acquisition is intended to enhance our computing services by enabling us to create a unique cloud platform to build, run and secure applications from the cloud to the edge. Linode had approximately 250 employees when we completed the acquisition.

In October 2021, we acquired Guardicore for $610.7 million in cash. Guardicore's micro-segmentation solution is designed to limit user access to only those applications that are authorized to communicate with each other, thereby limiting the spread of malware and protecting the flow of enterprise data across the network. Guardicore had approximately 270 employees when we completed the acquisition, and the acquisition was dilutive to our earnings per share in 2022.

Remote Work

In May 2022, we launched our FlexBase program, which allows the more than 95% of our workforce designated as flexible to choose whether they want to work from an Akamai office, their home office or a combination of both. Our operations have not been significantly disrupted by the shift to remote working. While we have incurred and expect to continue to incur expenses associated with enabling remote work, reconfiguring work spaces and re-thinking our facility footprint and the way we utilize office space, we do not currently believe those costs will materially impact our financial condition or results of operations.

Global Developments

Since the start of 2022, several global macroeconomic and geopolitical developments have emerged. These developments impacted our traffic growth rates, and as a result, our revenue growth rates. We have experienced a decline in revenue in 2022 related to the war in Ukraine due to a decrease in traffic in Russia, Belarus and Ukraine. Approximately 1% of our 2021 revenue was generated from traffic we served into these countries, and we experienced a decline in revenue in 2022 due to a decrease in traffic in these countries. Additionally, we were negatively impacted by the strengthening of the U.S. dollar. In addition, we, along with our customers, continue to manage through an uncertain period of inflation, growing recessionary concerns, supply chain challenges, uncertain energy supplies, heightened geopolitical tensions and rising interest rates. As a result of the uncertain macroeconomic environment, we have experienced elongated sales cycles with our customers and prospects, and expect to continue to experience elongated sales cycles in 2023. Our board of directors is continuing to oversee risks related to macroeconomic and geopolitical developments, including the ongoing war in Ukraine, and management is monitoring these developments, including the potential impact from the war or other geopolitical events on our business. As a result of overall macroeconomic trends, growing concerns of a potential global recession and future projections of traffic consumption that suggest traffic growth will moderate as restrictions related to the COVID-19 pandemic are lifted, we anticipate our traffic will grow, but at a more moderate pace than we have experienced previously. The extent of the ongoing impact of these macroeconomic events on our business and on global economic activity may continue to adversely affect our business, operations and financial results.

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Results of Operations

The following sets forth, as a percentage of revenue, consolidated statements of income data for the years indicated:

202220212020
Revenue100.0%100.0%100.0%
Costs and operating expenses:
Cost of revenue (exclusive of amortization of acquired intangible assets shown below)38.336.735.4
Research and development10.89.78.4
Sales and marketing13.913.316.0
General and administrative16.216.017.1
Amortization of acquired intangible assets1.81.41.3
Restructuring charge0.40.31.2
Total costs and operating expenses81.477.479.4
Income from operations18.622.620.6
Interest and marketable securities income, net0.10.50.9
Interest expense(0.3)(2.1)(2.2)
Other (expense) income, net(0.3)0.1(0.1)
Income before provision for income taxes18.121.119.2
Provision for income taxes(3.5)(1.8)(1.4)
Loss from equity method investment(0.2)(0.4)(0.4)
Net income14.4%18.9%17.4%

Revenue

The Company reports its revenue in three solution categories: security, delivery and compute. Prior to January 1, 2022, revenue by solution was reported by product group: Security Technology Group and Edge Technology Group. Revenue from security solutions was previously presented as Security Technology Group revenue. Revenue from delivery and compute solutions was previously presented as Edge Technology Group revenue. The periods presented prior to January 1, 2022 have been revised to reflect this new presentation. Revenue by solution category during the periods presented is as follows (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20222021% Change% Change at Constant Currency20212020% Change% Change at Constant Currency
Security$1,541,941$1,334,83615.5%19.7%$1,334,836$1,061,62225.7%24.6%
Delivery1,669,2571,873,243(10.9)(7.8)1,873,2431,929,810(2.9)(3.7)
Compute405,456253,14460.264.0253,144206,71722.421.4
Total revenue$3,616,654$3,461,2234.5%8.0%$3,461,223$3,198,1498.2%7.3%

The increases in our revenue in 2022 as compared to 2021, and 2021 as compared to 2020, was primarily the result of continued strong growth in sales of our security solutions, in addition to growth in compute solutions. The increase in 2022 as compared to 2021 was negatively impacted by the significant strengthening of the U.S. dollar and a decline in revenue from our delivery solutions.

The increase in security solutions revenue for 2022 as compared to 2021, was due to growth in a number of key products in our security solutions portfolio, including our application security portfolio, driven by application and application performance interfaces protection, as well as our Zero Trust Enterprise portfolio, which is led by our Guardicore segmentation solution. The increase in security solutions revenue in 2021 as compared to 2020, was due to growth across our security products portfolio, including Bot Manager, Kona Site Defender, Prolexic and our access control product suite.

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The decrease in delivery solutions revenue for 2022 as compared to 2021 was due to reduction in traffic growth, particularly among our largest customers, which we believe was attributed to macroeconomic challenges our customers are experiencing and the pricing impact of some large renewals that we completed in the first half of the year. The decrease in delivery solutions revenue for 2021 as compared to 2020 was due to reduction in sales of application performance solutions, partially offset by growth in edge application solutions.

The increase in compute solutions revenue in 2022 as compared to 2021 was due to strong growth in compute products, including through the acquisition of Linode in the first quarter of 2022, and continued growth in cloud optimization solutions. Revenue attributable to Linode since the date of the acquisition, and included in our consolidated statements of income, for the year ended 2022 was $103.5 million. The increase in compute solutions revenue in 2021 as compared to 2020, was due to strong growth in cloud optimization solutions.

Revenue derived in the U.S. and internationally during the periods presented is as follows (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20222021% Change% Change at Constant Currency20212020% Change% Change at Constant Currency
U.S.$1,902,051$1,837,5083.5%3.5%$1,837,508$1,777,4353.4%3.4%
International1,714,6031,623,7155.613.21,623,7151,420,71414.312.3
Total revenue$3,616,654$3,461,2234.5%8.0%$3,461,223$3,198,1498.2%7.3%

For each of the years ended December 31, 2022 and 2021, approximately 47% of our revenue was derived from our operations located outside of the U.S., compared to 44% for the year ended December 31, 2020. No single country outside of the U.S. accounted for 10% or more of revenue during any of these periods. We have generally seen revenue growth across all our international regions. Changes in foreign currency exchange rates negatively impacted our revenue by $122.1 million in 2022 as compared to 2021, and positively impacted our revenue by $28.8 million in 2021 as compared to 2020.

Cost of Revenue

Cost of revenue consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20222021% Change20212020% Change
Bandwidth fees$205,268$209,288(1.9)%$209,288$200,1674.6%
Co-location fees197,375177,95010.9177,950156,27513.9
Network build-out and supporting services195,669157,23424.4157,234134,95216.5
Payroll and related costs298,269276,5447.9276,544262,9725.2
Acquisition-related costs4,982100.0
Stock-based compensation, including amortization of prior capitalized amounts57,14657,390(0.4)57,39052,8638.6
Depreciation of network equipment259,359226,38414.6226,384167,01735.5
Amortization of internal-use software165,751164,1661.0164,166158,4263.6
Total cost of revenue$1,383,819$1,268,9569.1%$1,268,956$1,132,67212.0%
As a percentage of revenue38.3%36.7%36.7%35.4%

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The increases in cost of revenue for 2022 as compared to 2021, and 2021 as compared to 2020, was primarily due to increased network build-out and supporting services, particularly related to increased supporting services for third-party cloud applications, and increased investment in our network in prior years to support traffic growth, which resulted in higher depreciation costs of our network equipment and growth in expenses related to our co-location facilities including energy to power our network. The increase in cost of revenue for 2022 as compared to 2021 was also due to increased payroll and related costs as a result of increased headcount due to the acquisition of Linode.

During 2023, we expect our cost of revenue to increase as compared to 2022, in particular co-location costs, due to investments in our network to support the continued growth of our compute solutions. We plan to continue to focus our efforts on managing our operating margins, including our bandwidth and network build-out costs. In particular, we are taking steps to shift workloads to our own cloud solutions, which we expect will reduce third-party cloud application expense. We also expect to change the estimated useful lives of our network servers from five to six years due to software and hardware initiatives we have undertaken to manage our global network more efficiently. This change will partially offset our expected increase in depreciation expense related to our investment in network equipment.

Research and Development Expenses

Research and development expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20222021% Change20212020% Change
Payroll and related costs$468,928$456,1382.8%$456,138$410,56811.1%
Stock-based compensation78,11665,95118.465,95148,85435.0
Capitalized salaries and related costs(183,540)(200,530)(8.5)(200,530)(200,143)0.2
Acquisition-related costs2,832100.0
Other expenses25,09813,81381.713,81310,03637.6
Total research and development$391,434$335,37216.7%$335,372$269,31524.5%
As a percentage of revenue10.8%9.7%9.7%8.4%

The increase in research and development expenses for 2022 as compared to 2021 was due to higher payroll and related costs and related stock-based compensation as a result of headcount growth from employees joining us through acquisitions, a reduction in capitalized salaries and related costs as a result of a shift in resources to work on core maintenance activities related to our platform and an increase in other expenses due to an increase in the use of third-party cloud applications to support our research and development activities.

The increase in research and development expenses for 2021 as compared to 2020 was due to increased payroll and related costs, including stock-based compensation, primarily due to headcount growth, the redeployment of some employees to research and development functions from sales and marketing activities as part of our March 2021 reorganization and as a result of employees joining us through acquisitions.

Research and development costs are expensed as incurred, other than certain internal-use software development costs eligible for capitalization. Capitalized development costs consist of payroll and related costs for personnel and external consulting expenses involved in the development of internal-use software used to deliver our services and operate our network. For the years ended December 31, 2022, 2021 and 2020, we capitalized $30.0 million, $32.2 million and $35.7 million, respectively, of stock-based compensation. These capitalized internal-use software development costs are amortized to cost of revenue over their estimated useful lives, ranging from two to seven years based on the software developed and its expected useful life.

We expect research and development costs to increase in 2023, in particular payroll and related costs and stock-based compensation, to support the continued growth of our compute and security solutions.

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Sales and Marketing Expenses

Sales and marketing expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20222021% Change20212020% Change
Payroll and related costs$374,110$366,5012.1%$366,501$393,800(6.9)%
Stock-based compensation47,78946,3423.146,34265,257(29.0)
Marketing programs and related costs55,03340,55335.740,55339,2723.3
Acquisition-related costs2,166100.0
Other expenses23,3118,571172.08,57112,076(29.0)
Total sales and marketing$502,409$461,9678.8%$461,967$510,405(9.5)%
As a percentage of revenue13.9%13.3%13.3%16.0%

The increase in sales and marketing expenses for 2022 as compared to 2021 was primarily due to increased marketing programs and related costs due to advertising and customer events held in 2022. Other expenses also increased due to travel associated with customer events and meetings, as well as a sales recognition event during 2022 that did not occur in 2021. Such events and travel costs were higher in 2022 than in 2021 due to the rollback of COVID-19 pandemic-related restrictions that had been in place in the prior year.

The decrease in sales and marketing expenses for 2021 as compared to 2020 was due to decreased payroll and related costs, including stock-based compensation, primarily as a result of headcount reductions due to the establishment of a unified global sales organization and elimination of duplicative roles. In addition, some employees who previously supported the sales organization were redeployed in 2021 to our research and development function to focus our investments to improve security, performance, scalability and innovation across our solutions.

We expect sales and marketing costs to increase in 2023 as compared to 2022, due to our continued investment in go-to-market efforts. However, we plan to continue to carefully manage costs in an effort to manage our operating margins.

General and Administrative Expenses

General and administrative expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20222021% Change20212020% Change
Payroll and related costs$213,772$223,238(4.2)%$223,238$199,99211.6%
Stock-based compensation62,92663,324(0.6)63,32458,4708.3
Depreciation and amortization74,22581,934(9.4)81,93482,862(1.1)
Facilities-related costs103,473100,7692.7100,76998,8052.0
Provision for doubtful accounts7,042763822.97632,881(73.5)
Acquisition-related costs19,07113,31743.213,3175,579138.7
Software and related service costs50,32040,86123.140,86141,392(1.3)
Legal settlements275(100.0)
Endowment of Akamai Foundation20,000(100.0)
Other expenses53,37728,81885.228,81837,632(23.4)
Total general and administrative$584,206$553,0245.6%$553,024$547,8880.9%
As a percentage of revenue16.2%16.0%16.0%17.1%

The increase in general and administrative expenses for 2022 as compared to 2021 was primarily due to software and related service costs as we transition and expand to cloud-based applications, other expenses related to an increase in

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professional service fees to support our operations and acquisition-related costs primarily related to our acquisition of Linode. These increases were partially offset by a decrease in payroll and related costs due to a decline in performance-based compensation programs.

The increase in general and administrative expenses for 2021 as compared to 2020 was primarily due to increased payroll and related costs, including stock-based compensation, as a result of annual merit increases and headcount growth, partially offset by a decrease in an endowment contribution to the Akamai Foundation in 2020 that did not recur in 2021.

General and administrative expenses for 2022, 2021 and 2020 are broken out by category as follows (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20222021% Change20212020% Change
Global functions$212,674$212,4560.1%$212,456$193,7199.7%
As a percentage of revenue5.9%6.1%6.1%6.1%
Infrastructure345,391326,4805.8326,480325,4340.3
As a percentage of revenue9.6%9.4%9.4%10.2%
Other26,14114,08885.614,08828,735(51.0)
Total general and administrative expenses$584,206$553,0245.6%$553,024$547,8880.9%
As a percentage of revenue16.2%16.0%16.0%17.1%

Global functions expense includes payroll, stock-based compensation and other employee-related costs for administrative functions, including finance, purchasing, order entry, human resources, legal, information technology and executive personnel, as well as third-party professional service fees. Infrastructure expense includes payroll, stock-based compensation and other employee-related costs for our network infrastructure functions, as well as facility rent expense, depreciation and amortization of facility and IT-related assets, software and related service costs, business insurance and taxes. Our network infrastructure function is responsible for network planning, sourcing, architecture evaluation and platform security. Other expense includes acquisition-related costs, provision for doubtful accounts, legal settlements and the endowment contribution to the Akamai Foundation.

During 2023, we expect our general and administrative expenses to increase as compared to 2022 as a result of payroll and related costs, including stock-based compensation, due to the expected achievement of the performance-based compensation programs. We plan to continue to control costs, including reducing our real estate expenses due to excess capacity created by our FlexBase program, in an effort to manage our operating margins.

Amortization of Acquired Intangible Assets

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20222021% Change20212020% Change
Amortization of acquired intangible assets$64,983$48,01935.3%$48,019$42,04914.2%
As a percentage of revenue1.8%1.4%1.4%1.3%

The increase in amortization of acquired intangible assets for 2022 as compared to 2021, as well as 2021 as compared to 2020, was the result of amortization of acquired intangible assets related to our recent acquisitions. Based on acquired intangible assets as of December 31, 2022, future amortization is expected to be $63.5 million, $59.2 million, $61.2 million, $56.3 million and $43.7 million for the years ending December 31, 2023, 2024, 2025, 2026 and 2027, respectively.

Restructuring Charge

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20222021% Change20212020% Change
Restructuring charge$13,529$10,73726.0%$10,737$37,286(71.2)%
As a percentage of revenue0.4%0.3%0.3%1.2%

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The restructuring charge for 2022 was primarily related to software impairment charges related to our investment with Mitsubishi UFJ Financial Group ("MUFG") in the joint venture Global Open Network, Inc. ("GO-NET"), and MUFG's decision to suspend GO-NET's operations, and impairments of right-of-use-assets for facilities that are no longer needed as a result of our FlexBase program.

The restructuring charge in 2021 was primarily the result of management's actions initiated in the fourth quarter of 2020 to better position us to become more agile in delivering our solutions. The restructuring charge for this action includes severance and related expenses for certain headcount reductions and software charges for software not yet placed into service that will not be implemented due to this action. In addition to the 2020 action, additional charges were incurred in 2021, related to management’s plans to launch its new FlexBase program in May 2022. The restructuring charge incurred for this program in 2021 includes impairments of lease-related assets for certain facilities that are no longer needed. These restructuring charges were partially offset by the release of a lease obligation for a facility previously exited as part of management actions initiated in late 2019.

The restructuring charge in 2020 was primarily the result of the management actions initiated in the fourth quarter of 2020, and the associated severance and related expenses and software charges that resulted from the action. In addition, an $8.7 million impairment of lease-related assets was incurred during 2020 to exit leased facilities related to a 2019 action, which allowed us to focus on investment with the potential to accelerate new revenue growth.

We are continuing to evaluate our facility footprint in light of our FlexBase program, including our plans and ability to sublease space, but we do not currently believe such charges will materially impact our financial condition or results of operation.

Non-Operating Income (Expense)

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20222021% Change20212020% Change
Interest and marketable securities income, net$3,258$15,620(79.1)%$15,620$29,122(46.4)%
As a percentage of revenue0.1%0.5%0.5%0.9%
Interest expense$(11,096)$(72,332)(84.7)%$(72,332)$(69,120)4.6%
As a percentage of revenue(0.3)%(2.1)%(2.1)%(2.2)%
Other (expense) income, net$(10,433)$1,785(684.5)%$1,785$(2,454)(172.7)%
As a percentage of revenue(0.3)%0.1%0.1%(0.1)%

Interest and marketable securities income, net primarily consists of interest earned on invested cash and marketable securities balances and income and losses on mutual funds that are associated with our employee non-qualified deferred compensation plan. The decrease to interest and marketable securities income, net for 2022 as compared to 2021 was due to increased losses associated with the non-qualified deferred compensation plan and lower interest earned on invested cash balances and marketable securities as a result of lower marketable securities balances in 2022 due to the funding of our recent acquisitions. The decrease to interest and marketable securities, net for 2021 as compared to 2020 was primarily the result of investing in marketable securities having lower rates of return due to lower interest rates.

Interest expense is related to our debt transactions, which are described in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K. The decrease to interest expense for 2022 as compared to 2021 was the result of the adoption of the new guidance for accounting for convertible senior notes on January 1, 2022, which resulted in the elimination of the amortization of debt discounts.

Other (expense) income, net primarily represents net foreign exchange gains and losses mainly due to foreign exchange rate fluctuations on intercompany transactions and other non-operating expense and income items as well as gains and losses on equity investments. Other (expense) income, net for the year ended December 31, 2022 includes an $8.9 million impairment from an equity investment, partially offset by a favorable impact of changes in foreign currency exchange rates. Other (expense) income, net for the years ended December 31, 2021 and 2020 also includes gains from the sale of equity investments of $3.7 million and $7.2 million, respectively. Other income (expense), net may fluctuate in the future based on changes in foreign currency exchange rates or other events.

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Provision for Income Taxes

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20222021% Change20212020% Change
Provision for income taxes$126,696$62,571102.5%$62,571$45,92236.3%
As a percentage of revenue3.5%1.8%1.8%1.4%
Effective income tax rate19.3%8.6%8.6%7.5%

The increase in the provision for income taxes for 2022 as compared to 2021 was mainly due to an intercompany sale of intellectual property, an increase in the tax on global intangible low-taxed income, a decrease in foreign income taxed at lower rates and a decrease in the excess tax benefit related to stock-based compensation. These amounts were partially offset by a decrease in profitability.

The increase in the provision for income taxes for 2021 as compared to 2020 was mainly due to an increase in profitability and a decrease in the excess tax benefit related to stock-based compensation. These amounts were partially offset by an increase in foreign income taxed at lower rates, a decrease in state taxes, a decrease in the revaluation of certain foreign income tax liabilities due to foreign exchange rate fluctuations and the release of certain tax reserves related to the expiration of local statutes of limitations.

For the year ended December 31, 2022, our effective income tax rate was lower than the federal statutory tax rate due to foreign income taxed at lower rates and the benefit of U.S. federal, state and foreign research and development credits. These amounts were partially offset by non-deductible stock-based compensation, tax on global intangible low-taxed income and an intercompany sale of intellectual property.

For the year ended December 31, 2021, our effective income tax rate was lower than the federal statutory tax rate due to foreign income taxed at lower rates, the excess tax benefit related to stock-based compensation and the benefit of U.S. federal, state and foreign research and development credits. These amounts were partially offset by non-deductible stock-based compensation and state taxes.

For the year ended December 31, 2020, our effective income tax rate was lower than the federal statutory tax rate due to foreign income taxed at lower rates, the impact of the excess tax benefit related to stock-based compensation and the benefit of U.S. federal, state and foreign research and development credits. These amounts were partially offset by non-deductible stock-based compensation, state taxes and the valuation allowance recorded against tax credits and foreign net operating loss carryforwards.

Our effective income tax rate may fluctuate between fiscal years and from quarter to quarter due to items arising from discrete events, such as tax benefits from the settlement of employee equity awards, tax law changes and settlements of tax audits and assessments. Our effective income tax rate is also impacted by, and may fluctuate in any given period because of, the composition of income in foreign jurisdictions where tax rates differ depending on the local statutory rates.

Refer to Note 19 to the consolidated financial statements included elsewhere in this annual report on Form 10-K for additional information regarding unrecognized tax benefits that, if recognized, would impact the effective income tax rate in the next 12 months.

Loss from Equity Method Investment

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20222021% Change20212020% Change
Loss from equity method investment$7,635$14,008(45.5)%$14,008$13,1066.9%
As a percentage of revenue0.2%0.4%0.4%0.4%

Loss from equity method investment includes our share of losses from our investment with MUFG in the joint venture GO-NET, in addition to impairment charges realized. Since MUFG made the decision to suspend operations and ultimately liquidate GO-NET during 2022, our final impairment charge, which reduced our investment value to zero, was recognized during 2022.

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Non-GAAP Financial Measures

In addition to providing financial measurements based on generally accepted accounting principles in the United States of America ("GAAP") we provide additional financial metrics that are not prepared in accordance with GAAP ("non-GAAP financial measures"). Management uses non-GAAP financial measures to understand and compare operating results across accounting periods, for financial and operational decision making, for planning and forecasting purposes, to measure executive compensation and to evaluate our financial performance. These non-GAAP financial measures are non-GAAP income from operations, non-GAAP operating margin, non-GAAP net income, non-GAAP net income per diluted share, Adjusted EBITDA, Adjusted EBITDA margin, capital expenditures and impact of foreign currency exchange rates, as discussed below.

Management believes that these non-GAAP financial measures reflect our ongoing business in a manner that allows for meaningful comparisons and analysis of trends in the business, as they facilitate comparing financial results across accounting periods and to those of peer companies. Management also believes that these non-GAAP financial measures enable investors to evaluate our operating results and future prospects in the same manner as management. These non-GAAP financial measures may exclude expenses and gains that may be unusual in nature, infrequent or not reflective of our ongoing operating results.

The non-GAAP financial measures do not replace the presentation of our GAAP financial measures and should only be used as a supplement to, not as a substitute for, our financial results presented in accordance with GAAP.

The non-GAAP adjustments, and our basis for excluding them from non-GAAP financial measures, are outlined below:

•Amortization of acquired intangible assets – We have incurred amortization of intangible assets, included in our GAAP financial statements, related to various acquisitions we have made. The amount of an acquisition's purchase price allocated to intangible assets and term of its related amortization can vary significantly and is unique to each acquisition; therefore, we exclude amortization of acquired intangible assets from our non-GAAP financial measures to provide investors with a consistent basis for comparing pre- and post-acquisition operating results.

•Stock-based compensation and amortization of capitalized stock-based compensation – Although stock-based compensation is an important aspect of the compensation paid to our employees, the grant date fair value varies based on the stock price at the time of grant, varying valuation methodologies, subjective assumptions and the variety of award types. This makes the comparison of our current financial results to previous and future periods difficult to interpret; therefore, we believe it is useful to exclude stock-based compensation and amortization of capitalized stock-based compensation from our non-GAAP financial measures in order to highlight the performance of our core business and to be consistent with the way many investors evaluate our performance and compare our operating results to peer companies.

•Acquisition-related costs – Acquisition-related costs include transaction fees, advisory fees, due diligence costs and other direct costs associated with strategic activities, as well as certain additional compensation costs payable to employees acquired from the Linode acquisition if employed for a certain period of time. The additional compensation cost was initiated by and determined by the seller, and is in addition to normal levels of compensation, including retention programs, offered by Akamai. Acquisition-related costs are impacted by the timing and size of the acquisitions. We exclude acquisition-related costs from our non-GAAP financial measures to provide a useful comparison of our operating results to prior periods and to our peer companies because such amounts vary significantly based on the magnitude of our acquisition transactions and do not reflect our core operations.

•Restructuring charge – We have incurred restructuring charges from programs that have significantly changed either the scope of the business undertaken by us or the manner in which that business is conducted. These charges include severance and related expenses for workforce reductions, impairments of long-lived assets that will no longer be used in operations (including right-of-use assets, other facility-related property and equipment and internal-use software) and termination fees for any contracts cancelled as part of these programs. We exclude these items from our non-GAAP financial measures when evaluating our continuing business performance as such items vary significantly based on the magnitude of the restructuring action and do not reflect expected future operating expenses. In addition, these charges do not necessarily provide meaningful insight into the fundamentals of current or past operations of our business.

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•Amortization of debt discount and issuance costs and amortization of capitalized interest expense – In August 2019, we issued $1,150 million of convertible senior notes due 2027 with a coupon interest rate of 0.375%. In May 2018, we issued $1,150 million of convertible senior notes due 2025 with a coupon interest rate of 0.125%. The imputed interest rates of these convertible senior notes were 3.10% and 4.26%, respectively. This is a result of the debt discounts recorded for the conversion features that, prior to January 1, 2022, were required to be separately accounted for as equity under GAAP, thereby reducing the carrying values of the convertible debt instruments. The debt discounts were amortized as interest expense. On January 1, 2022, we adopted the new guidance for accounting for convertible instruments. This new guidance eliminated separate accounting for the equity portion, and thus the amortization of the debt discount that was recorded as interest expense. Prior to January 1, 2022, we excluded this non-cash interest expense from our non-GAAP results because it was not representative of ongoing operating performance. After January 1, 2022, this interest expense is no longer included in or excluded from GAAP or non-GAAP results. Additionally, the issuance costs of the convertible senior notes are amortized to interest expense and are also excluded from our non-GAAP results because we believe the non-cash amortization expense is not representative of ongoing operating performance.

•Gains and losses on investments – We have recorded gains and losses from the disposition, changes to fair value and impairment of certain investments. We believe excluding these amounts from our non-GAAP financial measures is useful to investors as the types of events giving rise to these gains and losses are not representative of our core business operations and ongoing operating performance.

•Legal settlements – We have incurred losses related to the settlement of legal matters. We believe excluding these amounts from our non-GAAP financial measures is useful to investors as the types of events giving rise to them are not representative of our core business operations.

•Endowment of Akamai Foundation – We have incurred expenses to endow the Akamai Foundation, a private corporate foundation dedicated to encouraging the next generation of technology innovators by supporting math and science education. Our first endowment was in 2018 to enable a permanent endowment for the Akamai Foundation to allow it to expand its reach. In the fourth quarter of 2020 we supplemented the endowment to enable specific initiatives to increase diversity in the technology industry. We believe excluding these amounts from non-GAAP financial measures is useful to investors as these infrequent expenses are not representative of our core business operations.

•Income and losses from equity method investment – We record income or losses on our share of earnings and losses from our equity method investment. We exclude such income and losses because we do not have direct control over the operations of the investment and the related income and losses are not representative of our core business operations.

•Income tax effect of non-GAAP adjustments and certain discrete tax items – The non-GAAP adjustments described above are reported on a pre-tax basis. The income tax effect of non-GAAP adjustments is the difference between GAAP and non-GAAP income tax expense. Non-GAAP income tax expense is computed on non-GAAP pre-tax income (GAAP pre-tax income adjusted for non-GAAP adjustments) and excludes certain discrete tax items (such as recording or releasing of valuation allowances), if any. We believe that applying the non-GAAP adjustments and their related income tax effect allows us to highlight income attributable to our core operations.

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The following table reconciles GAAP income from operations to non-GAAP income from operations and non-GAAP operating margin for the years ended December 31, 2022, 2021 and 2020 (in thousands):

202220212020
Income from operations$676,274$783,148$658,534
Amortization of acquired intangible assets64,98348,01942,049
Stock-based compensation217,185202,759197,411
Amortization of capitalized stock-based compensation and capitalized interest expense31,76835,89433,202
Restructuring charge13,52910,73737,286
Acquisition-related costs29,04913,3175,579
Legal settlements275
Endowment of Akamai Foundation20,000
Non-GAAP income from operations$1,032,788$1,093,874$994,336
GAAP operating margin19%23%21%
Non-GAAP operating margin29%32%31%

The following table reconciles GAAP net income to non-GAAP net income for the years ended December 31, 2022, 2021 and 2020 (in thousands):

202220212020
Net income$523,672$651,642$557,054
Amortization of acquired intangible assets64,98348,01942,049
Stock-based compensation217,185202,759197,411
Amortization of capitalized stock-based compensation and capitalized interest expense31,76835,89433,202
Restructuring charge13,52910,73737,286
Acquisition-related costs29,04913,3175,579
Legal settlements275
Endowment of Akamai Foundation20,000
Amortization of debt discount and issuance costs4,39566,02562,823
Loss (gain) on investments8,260(3,680)(7,228)
Loss from equity method investment7,63514,00813,106
Income tax effect of above non-GAAP adjustments and certain discrete tax items(42,768)(96,164)(103,280)
Non-GAAP net income$857,708$942,557$858,277

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The following table reconciles GAAP net income per diluted share to non-GAAP net income per diluted share for the years ended December 31, 2022, 2021 and 2020 (in thousands, except per share data):

202220212020
GAAP net income per diluted share$3.26$3.93$3.37
Adjustments to net income:
Amortization of acquired intangible assets0.400.290.25
Stock-based compensation1.351.221.19
Amortization of capitalized stock-based compensation and capitalized interest expense0.200.220.20
Restructuring charge0.080.060.23
Acquisition-related costs0.180.080.03
Legal settlements
Endowment of Akamai Foundation0.12
Amortization of debt discount and issuance costs0.030.400.38
Loss (gain) on investments0.05(0.02)(0.04)
Loss from equity method investment0.050.080.08
Income tax effect of above non-GAAP adjustments and certain discrete tax items(0.27)(0.58)(0.63)
Adjustment for shares (1)0.020.060.04
Non-GAAP net income per diluted share (2)$5.37$5.74$5.22
Shares used in GAAP per diluted share calculations160,467165,804165,213
Impact of benefit from note hedge transactions (1)(720)(1,600)(873)
Shares used in non-GAAP per diluted share calculations (1)159,747164,204164,340

(1) Shares used in non-GAAP per diluted share calculations have been adjusted for the periods presented for the benefit of our note hedge transactions. During the periods presented, our average stock price was in excess of $95.10, which is the initial conversion price of our convertible senior notes due in 2025. See further discussion below.

(2) May not foot due to rounding.

Non-GAAP net income per diluted share is calculated as non-GAAP net income divided by diluted weighted average common shares outstanding. GAAP diluted weighted average common shares outstanding are adjusted in non-GAAP per share calculations for the shares that would be delivered to us pursuant to the note hedge transactions entered into in connection with the issuance of our convertible senior notes. Under GAAP, shares delivered under hedge transactions are not considered offsetting shares in the fully-diluted share calculation until they are delivered. However, we would receive a benefit from the note hedge transactions and would not allow the dilution to occur, so management believes that adjusting for this benefit provides a meaningful view of net income per share. Unless our weighted average stock price is greater than $95.10, the initial conversion price of the convertible senior notes due 2025, or $116.18, the initial conversion price of the convertible senior notes due 2027, there will be no difference between our GAAP and non-GAAP diluted weighted average common shares outstanding.

We consider Adjusted EBITDA to be another important indicator of the operational strength and performance of our business and a good measure of our historical operating trends. Adjusted EBITDA eliminates items that we do not consider to be part of our core operations. We define Adjusted EBITDA as GAAP net income excluding the following items: interest and marketable securities income and losses; income taxes; depreciation and amortization of tangible and intangible assets; stock-based compensation; amortization of capitalized stock-based compensation; acquisition-related costs; restructuring charges; gains and losses on legal settlements; costs incurred related to endowment contributions to the Akamai Foundation; foreign exchange gains and losses; interest expense; amortization of capitalized interest expense; certain gains and losses on investments; income and losses from equity method investments; and other non-recurring or unusual items that may arise from time to time. Adjusted EBITDA margin represents Adjusted EBITDA stated as a percentage of revenue.

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The following table reconciles GAAP net income to Adjusted EBITDA and Adjusted EBITDA margin for the years ended December 31, 2022, 2021 and 2020 (in thousands):

202220212020
Net income$523,672$651,642$557,054
Amortization of acquired intangible assets64,98348,01942,049
Stock-based compensation217,185202,759197,411
Amortization of capitalized stock-based compensation and capitalized interest expense31,76835,89433,202
Restructuring charge13,52910,73737,286
Acquisition-related costs29,04913,3175,579
Legal settlements275
Interest and marketable securities income, net(3,258)(15,620)(29,122)
Endowment of Akamai Foundation20,000
Interest expense11,09672,33269,120
Provision for income taxes126,69662,57145,922
Depreciation and amortization496,909467,048403,160
Loss (gain) on investments8,260(3,680)(7,228)
Loss from equity method investment7,63514,00813,106
Other expense, net2,1731,8959,682
Adjusted EBITDA$1,529,697$1,560,922$1,397,496
Net income margin14%19%17%
Adjusted EBITDA margin42%45%44%

Impact of Foreign Currency Exchange Rates

Revenue and earnings from our international operations have historically been an important contributor to our financial results. Consequently, our financial results have been impacted, and management expects they will continue to be impacted, by fluctuations in foreign currency exchange rates. For example, when the local currencies of our foreign subsidiaries weaken, generally our consolidated results stated in U.S. dollars are negatively impacted.

Because exchange rates are a meaningful factor in understanding period-to-period comparisons, management believes the presentation of the impact of foreign currency exchange rates on revenue and earnings enhances the understanding of our financial results and evaluation of performance in comparison to prior periods. The dollar impact of changes in foreign currency exchange rates presented is calculated by translating current period results using monthly average foreign currency exchange rates from the comparative period and comparing them to the reported amount. The percentage change at constant currency presented is calculated by comparing the prior period amounts as reported and the current period amounts translated using the same monthly average foreign currency exchange rates from the comparative period.

Liquidity and Capital Resources

To date, we have financed our operations primarily through public and private sales of debt and equity securities and cash generated by operations. As of December 31, 2022, our cash, cash equivalents and marketable securities, which primarily consisted of time deposits, corporate bonds and U.S. government agency obligations, totaled $1.4 billion. We place our cash investments in instruments that meet high-quality credit standards, as specified in our investment policy. Our investment policy also limits the amount of our credit exposure to any one issue or issuer and seeks to manage these assets to achieve our goals of preserving principal and maintaining adequate liquidity at all times.

Changes in cash, cash equivalents and marketable securities are dependent upon changes in, among other things, working capital items such as accounts receivable, deferred revenue, accounts payable and various accrued expenses, as well as changes in our capital and financial structure due to common stock repurchases, debt repayments and issuances, acquisitions, purchases and sales of marketable securities, cash paid for acquisitions and similar events. We believe that our strong balance sheet and

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cash position are important competitive differentiators that provide the financial stability and flexibility to enable us to continue to make investments at opportune times. We expect to continue to evaluate strategic investments to strengthen our business.

As of December 31, 2022, we had cash and cash equivalents of $249.5 million held in accounts outside the U.S. The U.S. Tax Cuts and Jobs Act establishes a territorial tax system in the U.S., which provides companies with the potential ability to repatriate earnings with minimal U.S. federal income tax impact. As a result, our liquidity is not expected to be materially impacted by the amount of cash and cash equivalents held in accounts outside the U.S.

The following table summarizes current and long-term material cash requirements as of December 31, 2022, which we expect to fund primarily with operating cash flows (in thousands):

Payments Due by Period
TotalLess than 12 Months12 to 36 Months36 to 60 MonthsMore than 60 Months
Operating lease obligations: (1)
Real estate arrangements$715,112$78,714$151,323$126,737$358,338
Co-location arrangements310,605119,527113,27759,21718,584
Bandwidth agreements118,06682,94934,0061,111
Open vendor purchase orders434,996378,81653,2072,973
Convertible senior notes2,300,0001,150,0001,150,000
Total contractual obligations$3,878,779$660,006$1,501,813$1,340,038$376,922

(1) Excludes $141.7 million of obligations for operating leases that have not yet commenced. See Note 12 to our consolidated financial statements included elsewhere in this annual report on Form 10-K for additional information.

In accordance with the authoritative guidance for accounting for uncertainty in income taxes, as of December 31, 2022, we had unrecognized tax benefits of $38.3 million, including $8.6 million of accrued interest and penalties. We believe that it is reasonably possible that $3.6 million of our unrecognized tax benefits will be recognized by the end of 2023. The settlement period for the remaining amount of the unrecognized tax benefits is unknown.

Cash Provided by Operating Activities

For the Years Ended December 31,
(in thousands)202220212020
Net income$523,672$651,642$557,054
Non-cash reconciling items included in net income756,321793,445727,829
Changes in operating assets and liabilities(5,317)(40,524)(69,883)
Net cash flows provided by operating activities$1,274,676$1,404,563$1,215,000

The decrease in cash provided by operating activities for 2022 as compared to 2021 was primarily due to income taxes paid on an intercompany sale of intellectual property, lower profitability and timing of vendor payments.

The increase in cash provided by operating activities for 2021 as compared to 2020 was primarily due to increased profitability in 2021 and timing of payments from customers.

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Cash Used in Investing Activities

For the Years Ended December 31,
(in thousands)202220212020
Cash paid for acquired businesses, net of cash acquired$(872,091)$(598,825)$(127,999)
Cash paid for asset acquisition(36,376)
Purchases of property and equipment and capitalization of internal-use software development costs(458,302)(545,230)(731,872)
Net marketable securities activity714,205501,478(154,848)
Other, net(6,122)(4,322)8,121
Net cash used in investing activities$(622,310)$(646,899)$(1,042,974)

The decrease in cash used in investing activities in 2022 as compared to 2021 was due to a decrease in purchases of marketable securities, as we did not reinvest our matured securities in order to fund our acquisition of Linode, and a decrease in purchases of property and equipment as we reduced spending related to our delivery solutions as we focused on higher growth initiatives, partially offset by cash paid for the acquisition of Linode in March 2022.

The decrease in cash used in investing activities in 2021 as compared to 2020 was primarily driven by a decrease in purchases of marketable securities, as we did not reinvest our matured securities in order to fund our acquisition of Guardicore in October 2021. The decrease was also attributable to a reduction of purchases of property and equipment as we slowed expansion of our network, as compared to 2020. These decreases were partially offset by an increase in cash paid for acquired businesses in 2021, due to the size of the acquisition completed in 2021 as compared to 2020.

Cash Used in Financing Activities

For the Years Ended December 31,
(in thousands)202220212020
Activity related to stock-based compensation$(25,774)$(39,480)$(30,053)
Repurchases of common stock(608,010)(522,255)(193,588)
Other, net(393)(268)
Net cash used in financing activities$(634,177)$(562,003)$(223,641)

The increase in cash used in financing activities in 2022 as compared to 2021, and 2021 as compared to 2020, was primarily the result of increased share repurchases. Effective November 1, 2018, our board of directors authorized a $1.1 billion share repurchase program through December 31, 2021. In October 2021, our board of directors authorized a new $1.8 billion share repurchase program, effective January 1, 2022 through December 31, 2024. Our goals for the share repurchase programs are to offset the dilution created by our employee equity compensation programs over time and provide the flexibility to return capital to shareholders as business and market conditions warrant, while still preserving our ability to pursue other strategic opportunities.

During 2022, 2021 and 2020, we repurchased 6.4 million, 4.7 million and 2.0 million shares of our common stock, respectively, at an average price per share of $94.96, $109.97 and $98.53, respectively.

Convertible Senior Notes

In August 2019, we issued $1,150.0 million in par value of convertible senior notes due 2027 and entered into related convertible note hedge and warrant transactions. We have used and expect to continue to use the net proceeds of the offering for share repurchases, working capital and general corporate purposes, including potential acquisitions and other strategic transactions.

In May 2018, we issued $1,150.0 million in par value of convertible senior notes due 2025 and entered into related convertible note hedge and warrant transactions. We used a portion of the net proceeds to repay at maturity all of our $690.0 million outstanding aggregate principle amount of convertible senior notes due in 2019. In addition, we have used and expect to continue to use the remaining net proceeds of the offering for share repurchases, working capital and general corporate purposes, including potential acquisitions and other strategic transactions.

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The terms of the notes and the hedge and warrant transactions are discussed more fully in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K.

Revolving Credit Facility

In May 2018, we entered into a $500.0 million, five-year revolving credit agreement ("2018 Credit Agreement"). Borrowings under the 2018 Credit Agreement bore interest, at our option, at a base rate plus a spread of 0.00% to 0.25% or an adjusted LIBOR rate plus a spread of 0.875% to 1.25%, in each case with such spread being determined based on our consolidated leverage ratio specified in the 2018 Credit Agreement. Regardless of what amounts, if any, were outstanding under the 2018 Credit Agreement, we were also obligated to pay an ongoing commitment fee on undrawn amounts at a rate of 0.075% to 0.15%, with such rate being based on our consolidated leverage ratio specified in the 2018 Credit Agreement.

In November 2022, we entered into a $500.0 million, five-year revolving credit agreement ("2022 Credit Agreement"). The 2022 Credit Agreement replaces the 2018 Credit Agreement. Borrowings under the 2022 Credit Agreement may be used to finance working capital needs and for general corporate purposes. The 2022 Credit Agreement provides for an initial $500.0 million revolving loans. Under specified circumstances, the facility can be increased to up to $1.0 billion in aggregate principal amount.

Borrowings under the 2022 Credit Agreement bear interest, at our option, and subject to a credit spread adjustment, at a term benchmark rate plus a spread of 0.75% to 1.125%, a reference rate plus a spread of 0.75% to 1.125%, or a base rate plus a spread of 0.00% to 0.125%, in each case with such spread being determined based on our consolidated leverage ratio specified in the 2022 Credit Agreement. Regardless of what amounts, if any, are outstanding under the 2022 Credit Agreement, we are also obligated to pay an ongoing commitment fee on undrawn amounts at a rate of 0.07% to 0.125%, with such rate being based on our consolidated leverage ratio specified in the 2022 Credit Agreement.

The 2022 Credit Agreement contains customary representations and warranties, affirmative and negative covenants and events of default. The negative covenants include restrictions on subsidiary indebtedness, liens and fundamental changes. These covenants are subject to a number of important exceptions and qualifications. The principal financial covenant requires a maximum consolidated leverage ratio. The 2022 Credit Facility expires, and any amounts outstanding thereunder will become due and payable, in November 2027, subject to up to two one-year extensions at our request and with the consent of the lenders party thereto. There were no outstanding borrowings under the 2022 Credit Agreement as of December 31, 2022.

Liquidity Outlook

Based on our present business plan, we expect our current cash, cash equivalents and marketable securities balances and our forecasted cash flows from operations to be sufficient to meet our foreseeable cash needs for at least the next 12 months. Our foreseeable cash needs, in addition to our recurring operating costs, include our expected capital expenditures, investments in information technology, potential strategic acquisitions, anticipated share repurchases, lease and purchase commitments and settlements of other liabilities.

Off-Balance Sheet Arrangements

We have entered into indemnification agreements with third parties, including vendors, customers, landlords, our officers and directors, shareholders of acquired companies, joint venture partners and third parties to which we license technology. Generally, these indemnification agreements require us to reimburse losses suffered by a third party due to various events, such as lawsuits arising from patent or copyright infringement or our negligence. These indemnification obligations are considered off-balance sheet arrangements in accordance with the authoritative guidance for guarantor’s accounting and disclosure requirements for guarantees, including indirect guarantees of indebtedness of others. See Note 13 to our consolidated financial statements included elsewhere in this annual report on Form 10-K for further discussion of these indemnification agreements. The fair value of guarantees issued or modified during 2022 and 2021 was determined to be immaterial.

Significant Accounting Policies and Estimates

See Note 2 to the consolidated financial statements included elsewhere in this annual report on Form 10-K for information regarding recent and newly adopted accounting pronouncements.

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Application of Critical Accounting Policies and Estimates

Overview

Our MD&A is based upon our consolidated financial statements, which have been prepared in accordance with GAAP. These principles require us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, cash flow and related disclosure of contingent assets and liabilities. Our estimates include those related to revenue recognition, accounts receivable and related reserves, valuation and impairment of marketable securities, capitalized internal-use software development costs, goodwill and acquired intangible assets, income tax reserves, impairment and useful lives of long-lived assets and stock-based compensation. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances at the time such estimates are made. Actual results may differ from these estimates. For a complete description of our significant accounting policies, see Note 2 to our consolidated financial statements included elsewhere in this annual report on Form 10-K.

Definitions

We define our critical accounting policies as those policies that require us to make subjective estimates and judgments about matters that are uncertain and are likely to have a material impact on our consolidated financial statements. Our estimates are based upon assumptions and judgments about matters that are highly uncertain at the time an accounting estimate is made and applied and require us to assess a range of potential outcomes.

Review of Critical Accounting Policies and Estimates

Revenue Recognition

Our contracts with customers sometimes include promises to transfer multiple services to a customer. Determining whether services are distinct performance obligations often requires the exercise of judgment by management. Advanced features that enhance a main product or service and are highly interrelated are generally not considered distinct; rather, they are combined with the service they relate to into one performance obligation. Different determinations related to combining services into performance obligations could result in differences in the timing and amount of revenue recognized in a period.

Determination of the standalone selling price ("SSP") also requires the exercise of judgment by management. SSP is based on observable inputs such as the price we charge for the service when sold separately, or the discounted list price per management’s approved price list. In cases where services are not sold separately or price list rates are not available, a cost-plus-margin approach or adjusted market approach is used to determine SSP. Changes to SSP could result in differences in the allocation of transaction price among performance obligations, which could result in differences in the timing and amount of revenue recognized in a period.

From time to time, we enter into contracts to sell services or license technology to unrelated enterprises at or about the same time that we enter into contracts to purchase products or services from the same enterprises. Consideration payable to a customer is reviewed as part of the transaction price. If the payment to the customer does not represent payment for a distinct service, revenue is recognized only up to the net amount of consideration after customer payment obligations are considered. Different determinations on whether a payment represents a distinct service could result in differences in the amount of revenue recognized.

We may also resell the licenses or services of third parties. If we are acting as an agent in an arrangement with a customer to provide third party services, the transaction price reflects only the net amount to which we will be entitled, after accounting for payments made to the third party responsible for satisfying the performance obligation. Different determinations on whether we are acting as an agent or a principal could change the amount of revenue recognized.

Accounts Receivable and Related Reserves

Trade accounts receivable are recorded at the invoiced amounts and do not bear interest. In addition to trade accounts receivable, our accounts receivable balance includes unbilled accounts that represent revenue recorded for customers that is typically billed within one month. We record allowances against our accounts receivable balance, primarily for current expected credit losses. Increases and decreases in the allowance for current expected credit losses are included as a component of general and administrative expense in the consolidated statements of income.

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Estimates are used in determining our allowance for current expected credit losses using historical loss rates for the previous twelve months as well as expectations about the future where we have been able to develop forecasts to supports our estimates. In addition, the allowance for current expected credit losses considers outstanding balances on a customer-specific, account-by-account basis. We assess collectability based upon a review of customer receivables from prior sales with collection issues where we no longer believe that the customer has the ability to pay for services previously provided. We also perform ongoing credit evaluations of our customers. If such an evaluation indicates that payment is no longer reasonably assured for services provided, any future services provided to that customer will result in the creation of a cash basis reserve until we receive consistent payments.

Valuation and Impairment of Marketable Securities

We measure the fair value of our financial assets and liabilities at the end of each reporting period. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. We have certain financial assets and liabilities recorded at fair value (principally cash equivalents and short- and long-term marketable securities) that have been classified as Level 1, 2 or 3 within the fair value hierarchy. Fair values determined by Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that we can access at the reporting date. Fair values determined by Level 2 inputs utilize data points other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Fair values determined by Level 3 inputs are based on unobservable data points for the asset or liability.

Marketable securities are considered to be impaired when a decline in fair value below cost basis is determined to be other-than-temporary. We periodically evaluate whether a decline in fair value below cost basis is other-than-temporary by considering available evidence regarding these investments including, among other factors, the duration of the period that, and extent to which, the fair value is less than cost basis; the financial health of, and business outlook for, the issuer, including industry and sector performance and operational and financing cash flow factors; overall market conditions and trends; and our intent and ability to retain our investment in the security for a period of time sufficient to allow for an anticipated recovery in market value. Once a decline in fair value is determined to be other-than-temporary, a write-down is recorded and a new cost basis in the security is established. Assessing the above factors involves inherent uncertainty. Write-downs, if recorded, could be materially different from the actual market performance of marketable securities in our portfolio if, among other things, relevant information related to our investments and marketable securities was not publicly available or other factors not considered by us would have been relevant to the determination of impairment.

Impairment and Useful Lives of Long-Lived Assets

We review our long-lived assets, such as property and equipment, operating lease right-of-use assets and acquired intangible assets, for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Events that would trigger an impairment review include a change in the use of the asset or forecasted negative cash flows related to the asset. When such events occur, we compare the carrying amount of the asset to the undiscounted expected future cash flows related to the asset. If this comparison indicates that impairment is present, the amount of the impairment is calculated as the difference between the carrying amount and the fair value of the asset. If a readily determinable market price does not exist, fair value is estimated using discounted expected cash flows attributable to the asset. The estimates required to apply this accounting policy include forecasted usage of the long-lived assets, the useful lives of these assets and expected future cash flows. Changes in these estimates could materially impact results from operations.

Goodwill and Acquired Intangible Assets

We test goodwill for impairment on an annual basis, as of December 31, or more frequently if events or changes in circumstances indicate that the asset might be impaired. We have concluded that we have one reporting unit and that our chief operating decision maker is our chief executive officer and the executive management team. We have assigned the entire balance of goodwill to our one reporting unit. The fair value of the reporting unit was based on our market capitalization as of each of December 31, 2022 and 2021, and it was substantially in excess of the carrying value of the reporting unit at each date.

Acquired intangible assets consist of completed technologies, customer relationships, trademarks and trade names, non-compete agreements and acquired license rights. We engage third party valuation specialists to assist us with the initial measurement of the fair value of acquired intangible assets. Fair value and useful life determinations may be based on, among other factors, estimates of future expected cash flows, royalty cost savings and appropriate discount rates used in calculating present values. Acquired intangible assets, other than goodwill, are amortized over their estimated useful lives based upon the estimated economic value derived from the related intangible assets.

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Income Taxes

Our provision for income taxes is comprised of a current and a deferred portion. The current income tax provision is calculated as the estimated taxes payable or refundable on tax returns for the current year. The deferred income tax provision is calculated for the estimated future tax effects attributable to temporary differences and carryforwards by using expected tax rates in effect in the years during which the differences are expected to reverse or the carryforwards are expected to be realized.

We currently have net deferred tax assets, comprised of net operating loss, or NOL, carryforwards, tax credit carryforwards and deductible temporary differences. Our management periodically weighs the positive and negative evidence to determine if it is more-likely-than-not that some or all of the deferred tax assets will be realized. In determining our net deferred tax assets and valuation allowances, annualized effective tax rates and cash paid for income taxes, management is required to make judgments and estimates about domestic and foreign profitability, the timing and extent of the utilization of NOL carryforwards, applicable tax rates, transfer pricing methodologies and tax planning strategies. Judgments and estimates related to our projections and assumptions are inherently uncertain; therefore, actual results could differ materially from our projections.

We have recorded certain tax reserves to address potential exposures involving our income tax positions. These potential tax liabilities result from the varying application of statutes, rules, regulations and interpretations by different taxing jurisdictions. Our estimate of the value of our tax reserves contains assumptions based on past experiences and judgments about the interpretation of statutes, rules and regulations by taxing jurisdictions. It is possible that the costs of the ultimate tax liability or benefit from these matters may be more or less than the amount that we estimated.

Uncertainty in income taxes is recognized in our consolidated financial statements using a two-step process to determine the amount of tax benefit to be recognized. First, the tax position must be evaluated to determine the likelihood that it will be sustained upon external examination. If the tax position is deemed more-likely-than-not to be sustained based on technical merit, the tax position is then assessed to determine the amount of benefit to recognize in the financial statements. The amount of the benefit that may be recognized is the largest amount that we believe has a greater than 50% likelihood of being realized upon ultimate settlement.

Accounting for Stock-Based Compensation

We issue stock-based compensation awards including stock options, restricted stock, restricted stock units and deferred stock units. We measure the fair value of these awards at the grant date and recognize such fair value as expense over the vesting period. We have selected the Black-Scholes option pricing model to determine the fair value of stock option awards and the Monte Carlo simulation model to determine the fair value of market-based restricted stock unit awards. Determining the fair value of stock-based awards at the grant date requires judgment, including estimating the expected life of the stock awards and the volatility of the underlying common stock. Our assumptions may differ from those used in prior periods. Changes to the assumptions may have a significant impact on the fair value of stock-based awards, which could have a material impact on our financial statements. Judgment is also required in estimating the number of stock-based awards that are expected to be forfeited. Should our actual forfeiture rates differ significantly from our estimates, our stock-based compensation expense and results of operations could be materially impacted. In addition, for awards that vest and become exercisable only upon achievement of specified performance conditions, we make judgments and estimates each quarter about the probability that such performance conditions will be met or achieved. Changes to the estimates we make from time to time may have a significant impact on our stock-based compensation expense and could materially impact our results of operations.

Capitalized Internal-Use Software Costs

We capitalize salaries and related costs, including stock-based compensation, of employees and consultants who devote time to the development of internal-use software development projects, as well as interest expense related to our senior convertible notes. Capitalization begins during the application development stage, once the preliminary project stage has been completed. If a project constitutes an enhancement to previously-developed software, we assess whether the enhancement creates additional functionality to the software, thus qualifying the work incurred for capitalization. Once the project is available for general release, capitalization ceases and we estimate the useful life of the asset and begin amortization. We periodically assess whether triggering events are present to review internal-use software for impairment. Changes in our estimates related to internal-use software would increase or decrease operating expenses or amortization recorded during the period.

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FY 2021 10-K MD&A

SEC filing source: 0001086222-22-000058.

Extracted structurally from real Item 7 body heading to real Item 7A/8 boundary. Confidence: high. Filing date: 2022-02-28. Report date: 2021-12-31.

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

This Management’s Discussion and Analysis of Financial Condition and Results of Operations, or MD&A, should be read in conjunction with our consolidated financial statements and notes thereto that appear elsewhere in this annual report on Form 10-K. See “Risk Factors” elsewhere in this annual report on Form 10-K for a discussion of certain risks associated with our business. The following discussion contains forward-looking statements. The forward-looking statements do not include the potential impact of any mergers, acquisitions, divestitures or other events that may be announced after the date hereof.

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Overview

We provide solutions to power and protect digital experiences. The key factors that influence our financial success are our ability to build on recurring revenue commitments for our security and performance offerings, increase media traffic on our network, effectively manage the prices we charge for our solutions, develop new products and carefully manage our capital spending and other expenses. The purpose of this discussion and analysis section is to provide material information relevant to an assessment of our financial condition and results of operations from management’s perspective, including to describe and explain key trends, events and other factors that impacted our reported results and that are reasonably likely to impact our future performance.

Revenue

For most of our solutions, our customers commit to contracts having terms of a year or longer, which allows us to have a consistent and predictable base level of revenue. In addition to a base level of revenue, we are also dependent on media customers where usage of our solutions is more variable. As a result, our revenue is impacted by the amount of media and software download traffic we serve on our network, the rate of adoption of gaming, social media and video platform offerings, the timing and variability of customer-specific one-time events and geopolitical, economic and other developments that impact our customers' businesses. Seasonal variations that impact traffic on our network, such as holiday-related activities, can cause revenue fluctuations from quarter to quarter. Over the longer term, our ability to expand our product portfolio and to effectively manage the prices we charge for our solutions are key factors impacting our revenue growth.

We have observed the following trends related to our revenue in recent years:

•Increased sales of our security solutions have made a significant contribution to revenue growth. We plan to continue to invest in this area with a focus on further enhancing our product portfolio and extending our go-to-market capabilities, particularly in certain markets and through our channel partners.

•We have experienced increases in the amount of traffic delivered for customers that use our solutions for video, gaming downloads and social media. During 2020, we saw a dramatic increase in traffic growth on our network related to the shutdowns and restrictions from the novel coronavirus, or COVID-19, pandemic. Primarily as a result of the rollback of many pandemic-related restrictions, we have seen the rate of traffic growth moderate during 2021. We do not expect the events of 2020, and its impact to our revenue growth rates, to repeat in the foreseeable future.

•The prices paid by some of our customers have declined due to competition and contract renewals. During 2021 as compared to 2020, we experienced a decline in revenue from website and application delivery solutions due to the above factors, particularly in the U.S. commerce vertical. While we have increased committed recurring revenue from our solutions by upselling incremental solutions to our existing customers and adding new customers to offset the negative trends, we expect revenue challenges from our website and application performance solutions to continue in 2022.

•Revenue from our international operations has been growing at a faster pace than from our U.S. operations, particularly in terms of traffic, new customer acquisition and cross-selling of incremental solutions. Because we publicly report in U.S. dollars, if the dollar strengthens, our reported revenue results will be negatively impacted. Conversely, a weaker dollar would benefit our reported results.

•We have experienced variations in certain types of revenue from quarter to quarter. In particular, we typically experience higher revenue in the fourth quarter of each year for some of our solutions as a result of holiday season activity. In addition, we experience quarterly variations in revenue attributable to, among other things, the nature and timing of software and gaming releases by our customers; whether there are large live sporting or other events or situations that impact the amount of media traffic on our network; and the frequency and timing of purchases of custom solutions or licensed software.

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Expenses

Our level of profitability is also impacted by our expenses, including direct costs to support our revenue such as bandwidth and co-location costs. We have observed the following trends related to our profitability in recent years:

•Our profitability improved in 2021 and 2020 as compared to prior periods due to higher overall revenue as well as the effects of cost savings and efficiency initiatives we have undertaken. We have also benefited from lower travel expenses because of pandemic-related shutdowns and restrictions. We will need to continue to undertake efforts intended to improve the efficiency of operations to manage our expense growth and profitability.

•Network bandwidth costs represent a significant portion of our cost of revenue. Historically, we have been able to mitigate increases in these costs by reducing our network bandwidth costs per unit and investing in internal-use software development to improve the performance and efficiency of our network. Our total bandwidth costs may increase in the future as a result of expected higher traffic levels and serving more traffic from higher cost regions. We will need to continue to effectively manage our bandwidth costs to maintain current levels of profitability.

•Co-location costs are also a significant portion of our cost of revenue. By improving our internal-use software and managing our hardware deployments to enable us to use servers more efficiently, we have been able to manage the growth of co-location costs. We expect to continue to scale our network in the future and will need to continue to effectively manage our co-location costs to maintain current levels of profitability.

•Network build-out and supporting service costs represent another significant portion of our cost of revenue. These costs include maintenance and supporting services incurred as we continue to build-out our global network. We have seen these costs increase in 2021 and 2020, as a result of our network expansion and pricing pressure from vendors. As we continue to invest in our network, we will need to effectively manage our network build-out and supporting costs.

•Our employees are core to the operations of our business, and payroll and related costs, including stock-based compensation, is one of our largest expenses. It is important to the success of operations that we offer competitive compensation packages. However, we need to ensure we continue to focus on the right investments and maintain operational efficiencies to mitigate the cost of talent. We plan to continue to hire employees in support of our strategic initiatives, including through our anticipated acquisition, but do not expect overall headcount to increase significantly in 2022.

•Depreciation expense related to our network equipment also contributes to our overall expense levels. During 2021, as compared to 2020, we saw higher depreciation expense due to accelerated deployment of equipment in 2020 to help meet the increased traffic demands arising during the ongoing COVID-19 pandemic. We plan to continue to invest in our network in 2022 which will further increase our capital expenditures and resulting depreciation expense.

Acquisitions

In February 2022, we announced our intention to acquire Linode Limited Liability Company, or Linode, for approximately $900.0 million, net of cash acquired and subject to post-closing adjustments. Linode is an infrastructure-as-a-service platform provider that allows for developer-friendly cloud computing capabilities. The acquisition is intended to enhance our edge computing services by creating a unique cloud platform to build, run and secure applications from the cloud to the edge. The acquisition is expected to close in March 2022. Linode has approximately 250 employees, and the acquisition is expected to be accretive to our earnings per share in 2022.

In October 2021, we acquired Guardicore Ltd., or Guardicore, for $610.4 million in cash. Guardicore's micro-segmentation solution is designed to limit user access to only those applications that are authorized to communicate with each other, thereby limiting the spread of malware and protecting the flow of enterprise data across the network. Guardicore has approximately 270 employees, and the acquisition is expected to be dilutive to our earnings per share at least through 2022.

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Reorganization

We are currently organized and operate in one reportable and operating segment: providing cloud services for delivering, optimizing and securing content and business applications over the internet. Effective on March 1, 2021, we reorganized into two groups, both of which utilize the Akamai Intelligent Edge Platform and our global sales organization: the Security Technology Group and the Edge Technology Group. These groups are aligned with our product offerings. Revenue from the Security Technology Group was previously reported as revenue from Cloud Security Solutions, and revenue from the Edge Technology Group was previously reported as revenue from content delivery network services and all other solutions. The Security Technology Group includes solutions that are designed to keep infrastructure, websites, applications and users safe, while the Edge Technology Group includes solutions that enable business online, including media delivery, web performance and edge computing solutions.

Remote Work

We have a rigorous process for assessing whether any office can reopen (and remain open) based on local government regulations, local health trends and business needs. For most locations, our facilities are expected to be closed to employees whose job responsibilities do not require in-office work. We have begun to selectively and safely reopen offices in a limited capacity for employees who would prefer to work from one of our offices. Safety protocols include, but are not limited to, mandatory training, personal protective equipment, reduced capacity, social distancing, an increased cleaning schedule and, in certain jurisdictions, vaccination requirements and/or testing protocols. We have a rigorous process for assessing whether any office can reopen (and remain open) based on local government regulations, local health trends and business needs. Except for employees whose job responsibilities require in-office work, none of our employees are required to fully return to the office, even those that are currently open. In addition, we plan to roll out our FlexBase program in May 2022, which will allow the more than 90% of our workforce designated as flexible to choose whether they want to work from an Akamai office or their home office, even after we decide it is safe to open all of our offices in light of the COVID-19 pandemic.

Our operations have not been significantly disrupted by the shift to remote working. While we have incurred and expect to continue to incur expenses associated with enabling remote work, reconfiguring work spaces to help ensure the safety and well-being of employees accessing our locations and re-thinking our facility footprint and the way we utilize office space, we do not currently believe those costs will materially impact our financial condition or results of operations.

Results of Operations

The following sets forth, as a percentage of revenue, consolidated statements of income data for the years indicated:

202120202019
Revenue100.0%100.0%100.0%
Costs and operating expenses:
Cost of revenue (exclusive of amortization of acquired intangible assets shown below)36.735.434.1
Research and development9.78.49.0
Sales and marketing13.316.018.1
General and administrative16.017.117.8
Amortization of acquired intangible assets1.41.31.3
Restructuring charge0.31.20.6
Total costs and operating expenses77.479.480.9
Income from operations22.620.619.1
Interest income0.50.91.2
Interest expense(2.1)(2.2)(1.7)
Other income (expense), net0.1(0.1)
Income before provision for income taxes21.119.218.6
Provision for income taxes(1.8)(1.4)(1.8)
Loss from equity method investment(0.4)(0.4)
Net income18.9%17.4%16.8%

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Revenue

Revenue during the periods presented is as follows (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20212020% Change% Change at Constant Currency20202019% Change% Change at Constant Currency
Security Technology Group$1,334,836$1,061,62225.7%24.6%$1,061,622$848,73325.1%25.3%
Edge Technology Group2,126,3872,136,527(0.5)(1.2)2,136,5272,044,8844.54.4
Total revenue$3,461,223$3,198,1498.2%7.3%$3,198,149$2,893,61710.5%10.6%

The increase in our revenue in 2021 as compared to 2020 was primarily the result of continued strong growth in sales of solutions offered by our Security Technology Group. The increase in our revenue in 2020 as compared to 2019 was primarily the result of higher media traffic volumes due in part to behavioral changes prompted by the COVID-19 pandemic and continued strong growth in sales of our Security Technology Group solutions.

The increases in Security Technology Group revenue for 2021 as compared to 2020, and 2020 as compared to 2019, were due to growth across our security products portfolio, including Bot Manager, Kona Site Defender, Prolexic and our access control product suite.

The decrease in Edge Technology Group revenue for 2021 as compared to 2020 was due to reduction in sales of application performance solutions, partially offset by growth in edge application solutions. The increase in Edge Technology Group revenue for 2020 as compared to 2019 was primarily due to strong traffic growth, driven by video and gaming, over-the-top, or OTT, as well as strong growth in our edge applications solutions stemming from behavior changes from the COVID-19 pandemic. These increases were partially offset by a reduction in sales of website and application performance solutions.

Revenue derived in the U.S. and internationally during the periods presented is as follows (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20212020% Change% Change at Constant Currency20202019% Change% Change at Constant Currency
U.S.$1,837,508$1,777,4353.4%3.4%$1,777,435$1,694,2114.9%4.9%
International1,623,7151,420,71414.312.31,420,7141,199,40618.418.5
Total revenue$3,461,223$3,198,1498.2%7.3%$3,198,149$2,893,61710.5%10.6%

The U.S. revenue growth rates for 2021 and 2020 were positively impacted by the increase in traffic on our network in 2021 and 2020, including from our U.S.-based large internet platform customers.

Internationally, during 2021 and 2020, we continued to see strong revenue growth from our operations in the Asia-Pacific region. Changes in foreign currency exchange rates positively impacted our revenue by $28.8 million in 2021 as compared to 2020, and negatively impacted our revenue by $1.2 million in 2020 as compared to 2019.

For the year ended December 31, 2021, approximately 47% of our revenue was derived from our operations located outside of the U.S., compared to 44% for the year ended December 31, 2020 and 41% for the year ended December 31, 2019. No single country outside of the U.S. accounted for 10% or more of revenue during any of these periods.

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Cost of Revenue

Cost of revenue consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20212020% Change20202019% Change
Bandwidth fees$209,288$200,1674.6%$200,167$165,33521.1%
Co-location fees177,950156,27513.9156,275127,02423.0
Network build-out and supporting services157,234134,95216.5134,952101,13533.4
Payroll and related costs276,544262,9725.2262,972248,1466.0
Stock-based compensation, including amortization of prior capitalized amounts57,39052,8638.652,86351,6072.4
Depreciation of network equipment226,384167,01735.5167,017125,58933.0
Amortization of internal-use software164,166158,4263.6158,426168,788(6.1)
Total cost of revenue$1,268,956$1,132,67212.0%$1,132,672$987,62414.7%
As a percentage of revenue36.7%35.4%35.4%34.1%

The increases in cost of revenue for 2021 as compared to 2020, and 2020 as compared to 2019, was primarily due to increased investment in our network, mostly incurred in 2020, to support current and anticipated future traffic growth, which resulted in increases to amounts paid for network build-out and supporting services, higher depreciation costs of our network equipment and increases to expenses related to our co-location facilities. Bandwidth fees also increased during these periods due to growth in the amount of traffic served on our network.

During 2022, we anticipate cost of revenues to increase compared to 2021, in particular amortization of internal-use software, depreciation of network equipment and payroll and related costs, due to continued investments in our network, as well as our recent and expected acquisitions. We plan to continue to focus our efforts on managing our operating margins, including continuing to manage our bandwidth, co-location and network build-out costs.

Research and Development Expenses

Research and development expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20212020% Change20202019% Change
Payroll and related costs$456,138$410,56811.1%$410,568$382,0847.5%
Stock-based compensation65,95148,85435.048,85449,685(1.7)
Capitalized salaries and related costs(200,530)(200,143)0.2(200,143)(183,282)9.2
Other expenses13,81310,03637.610,03612,878(22.1)
Total research and development$335,372$269,31524.5%$269,315$261,3653.0%
As a percentage of revenue9.7%8.4%8.4%9.0%

The increases in research and development expenses for 2021 as compared to 2020 were due to increased payroll and related costs, including stock-based compensation, primarily due to headcount growth, the redeployment of some employees to research and development functions from sales and marketing activities as part of our March 2021 reorganization and as a result of employees joining us through acquisitions.

The increases in research and development expenses for 2020 as compared to 2019 were due to growth in payroll and related costs as a result of merit increases and headcount growth to support investments in new product development and network scaling. These increases were partially offset by increases in capitalized salaries and related costs due to continued investment in internal-use software deployed on our network.

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Research and development costs are expensed as incurred, other than certain internal-use software development costs eligible for capitalization. Capitalized development costs consist of payroll and related costs for personnel and external consulting expenses involved in the development of internal-use software used to deliver our services and operate our network. For the years ended December 31, 2021, 2020 and 2019, we capitalized $32.2 million, $35.7 million and $33.7 million, respectively, of stock-based compensation. These capitalized internal-use software development costs are amortized to cost of revenue over their estimated useful lives, which is generally two years, but can be up to seven years based on the software developed and its expected useful life.

We expect research and development costs to increase in 2022 to support our innovation initiatives and incremental headcount due to hiring for our strategic investments and our employees acquired through our recent and anticipated acquisitions.

Sales and Marketing Expenses

Sales and marketing expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20212020% Change20202019% Change
Payroll and related costs$366,501$393,800(6.9)%$393,800$382,5702.9%
Stock-based compensation46,34265,257(29.0)65,25762,1495.0
Marketing programs and related costs40,55339,2723.339,27252,787(25.6)
Other expenses8,57112,076(29.0)12,07626,377(54.2)
Total sales and marketing$461,967$510,405(9.5)%$510,405$523,883(2.6)%
As a percentage of revenue13.3%16.0%16.0%18.1%

The decreases in sales and marketing expenses for 2021 as compared to 2020 were due to decreased payroll and related costs, including stock-based compensation, primarily as a result of headcount reductions due to the establishment of a unified global sales organization and elimination of duplicative roles as a result of our March 2021 reorganization. In connection with this, some employees who previously supported the sales organization were redeployed in March 2021 to our research and development function to focus our investments to improve security, performance, scalability and innovation across our solutions.

The decreases in sales and marketing expenses for 2020 as compared to 2019 were a result of the restrictions associated with the COVID-19 pandemic that resulted in the cancellation or postponement of in-person marketing events and led to a decline in travel expenses such as airfare, lodging and other costs related to in-person customer events and meetings.

We expect sales and marketing costs to increase in 2022 as compared to 2021, due our recent and anticipated acquisitions. However, we plan to continue to carefully manage costs in an effort to manage our operating margins and to refine and optimize our go-to-market efforts.

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General and Administrative Expenses

General and administrative expenses consisted of the following for the periods presented (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20212020% Change20202019% Change
Payroll and related costs$223,238$199,99211.6%$199,992$194,2323.0%
Stock-based compensation63,32458,4708.358,47052,82610.7
Depreciation and amortization81,93482,862(1.1)82,86278,5875.4
Facilities-related costs100,76998,8052.098,80590,6749.0
Provision for doubtful accounts7632,881(73.5)2,8811,92449.7
Acquisition-related costs13,3175,579138.75,5791,920190.6
License of patent(8,855)(100.0)
Legal settlements275(100.0)27510,000(97.3)
Endowment of Akamai Foundation20,000(100.0)20,000100.0
Other expenses69,67979,024(11.8)79,02494,785(16.6)
Total general and administrative$553,024$547,8880.9%$547,888$516,0936.2%
As a percentage of revenue16.0%17.1%17.1%17.8%

The increase in general and administrative expenses for 2021 as compared to 2020 was primarily due to increased payroll and related costs, including stock-based compensation, as a result of annual merit increases and headcount growth, partially offset by a decrease in an endowment contribution to the Akamai Foundation in 2020 that did not recur in 2021.

The increase in general and administrative expenses for 2020 as compared to 2019 was primarily due to:

•an endowment contribution to the Akamai Foundation in 2020, which did not occur in 2019, to support the Foundation's increased charitable initiatives;

•expansion of company infrastructure throughout 2019, including moving into our new corporate headquarters in Cambridge, Massachusetts, which increased facilities-related costs and depreciation and amortization in 2020; and

•a reduction to license patent fees as a result of our litigation with Limelight Networks, Inc., or Limelight, that did not recur in 2020.

The increases in general and administrative expenses for 2020 as compared to 2019 were also partially offset by a decrease in amounts paid to professional service providers for advisory services as well as a legal settlement charge in 2019 that did not recur in 2020.

General and administrative expenses for 2021, 2020 and 2019 are broken out by category as follows (in thousands):

For the Years Ended December 31,For the Years Ended December 31,
20212020% Change20202019% Change
Global functions$212,456$193,7199.7%$193,719$198,077(2.2)%
As a percentage of revenue6.1%6.1%6.1%6.8%
Infrastructure326,480325,4340.3325,434307,5005.8
As a percentage of revenue9.4%10.2%10.2%10.6%
Other14,08828,735(51.0)28,73510,516173.3
Total general and administrative expenses$553,024$547,8880.9%$547,888$516,0936.2%
As a percentage of revenue16.0%17.1%17.1%17.8%

Global functions expense includes payroll, stock-based compensation and other employee-related costs for administrative functions, including finance, purchasing, order entry, human resources, legal, information technology and executive personnel, as well as third-party professional service fees. Infrastructure expense includes payroll, stock-based compensation and other employee-related costs for our network infrastructure functions, as well as facility rent expense, depreciation and amortization

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of facility and IT-related assets, software and software-related costs, business insurance and taxes. Our network infrastructure function is responsible for network planning, sourcing, architecture evaluation and platform security. Other expense includes acquisition-related costs, provision for doubtful accounts, legal settlements, the endowment contribution to the Akamai Foundation, transformation costs and the licensing of a patent.

During 2022, we expect payroll and related costs of our general and administrative functions to increase as compared to 2021 as a result of headcount growth to support the operations of the business, but we plan to continue to carefully manage costs in an effort to manage our operating margins.

Amortization of Acquired Intangible Assets

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20212020% Change20202019% Change
Amortization of acquired intangible assets$48,019$42,04914.2%$42,049$38,5819.0%
As a percentage of revenue1.4%1.3%1.3%1.3%

The increase in amortization of acquired intangible assets for 2021 as compared to 2020, as well as 2020 as compared to 2019, was the result of amortization of assets related to our recent acquisitions.

Based on acquired intangible assets as of December 31, 2021, future amortization is expected to be $48.1 million, $43.5 million, $38.9 million, $35.8 million and $31.0 million for the years ending December 31, 2022, 2023, 2024, 2025 and 2026, respectively. We anticipate that these amortization amounts will increase in future periods as a result of our anticipated acquisition of Linode, which is expected to close in late March 2022.

Restructuring Charge

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20212020% Change20202019% Change
Restructuring charge$10,737$37,286(71.2)%$37,286$17,153117.4%
As a percentage of revenue0.3%1.2%1.2%0.6%

The restructuring charge in 2021 was primarily the result of management's actions initiated in the fourth quarter of 2020 to better position us to become more agile in delivering our solutions. The restructuring charge for this action includes severance and related expenses for certain headcount reductions and software charges for software not yet placed into service that will not be implemented due to this action. In addition to the 2020 action, additional charges were incurred in 2021, related to management’s plans to launch its new FlexBase program in May 2022. The restructuring charge incurred for this program in 2021 includes impairments of lease-related assets for certain facilities that are no longer needed. These restructuring charges were partially offset by the release of a lease obligation for a facility previously exited as part of management actions initiated in late 2019.

The restructuring charge in 2020 was primarily the result of the management actions initiated in the fourth quarter of 2020, and the associated severance and related expenses and software charges that resulted from the action. In addition, an $8.7 million impairment of lease-related assets was incurred during 2020 to exit leased facilities related to a 2019 action, which allowed us to focus on investment with the potential to accelerate new revenue growth.

The restructuring charge in 2019 was primarily the result of the management actions initiated in 2019, and associated severance and related expenses due to headcount reductions and software charges for software not yet placed into service that was not implemented due to this action.

We do not expect material additional restructuring charges related to our prior actions. We are continuing to evaluate our facility footprint in light of our FlexBase program, including our plans and ability to sublease space, but we do not currently believe such charges will materially impact our financial condition or results of operation.

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Non-Operating Income (Expense)

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20212020% Change20202019% Change
Interest income$15,620$29,122(46.4)%$29,122$34,355(15.2)%
As a percentage of revenue0.5%0.9%0.9%1.2%
Interest expense$(72,332)$(69,120)4.6%$(69,120)$(49,364)40.0%
As a percentage of revenue(2.1)%(2.2)%(2.2)%(1.7)%
Other income (expense), net$1,785$(2,454)(172.7)%$(2,454)$(1,428)71.8%
As a percentage of revenue0.1%(0.1)%(0.1)%%

Interest income primarily consists of interest earned on invested cash balances and marketable securities. The decrease to interest income for 2021 as compared to 2020, and 2020 as compared to 2019, was primarily the result of investing in marketable securities having lower rates of return due to lower interest rates. We expect interest income to decrease in 2022 as a result of an anticipated lower cash, cash equivalents and marketable securities balance due to our planned acquisition of Linode in March 2022.

Interest expense is related to our debt transactions, which are described in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K. The increase to interest expense for 2020 as compared to 2019 was primarily due to the August 2019 issuance of $1,150.0 million in par value of convertible senior notes due 2027, or 2027 Notes, which bear regular interest of 0.375%, but have an effective interest rate of 3.1% due to the conversion feature. As a result of our adoption of new guidance for accounting for convertible senior notes on January 1, 2022 (see Note 2 to the consolidated financial statements included elsewhere in this annual report on Form 10-K), we expect interest expense to decrease in 2022 as a result of the elimination of the amortization of debt discounts.

Other income (expense), net primarily represents net foreign exchange gains and losses mainly due to foreign currency exchange rate fluctuations on intercompany and other non-functional currency transactions. Other income (expense), net for the years ended December 31, 2021 and 2020 also includes gains from the sale of equity investments of $3.7 million and $7.2 million, respectively. Other income (expense), net may fluctuate in the future based on changes in foreign currency exchange rates or other events.

Provision for Income Taxes

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20212020% Change20202019% Change
Provision for income taxes$62,571$45,92236.3%$45,922$53,350(13.9)%
As a percentage of revenue1.8%1.4%1.4%1.8%
Effective income tax rate8.6%7.5%7.5%10.0%

The increase in the provision for income taxes for 2021 as compared to 2020 was mainly due to an increase in profitability and a decrease in the excess tax benefit related to stock-based compensation. These amounts were partially offset by an increase in foreign income taxed at lower rates, a decrease in state taxes, a decrease in the revaluation of certain foreign income tax liabilities due to foreign exchange rate fluctuations and the release of certain tax reserves related to the expiration of local statutes of limitations.

The decrease in the provision for income taxes for 2020 as compared to 2019 was mainly due to a decrease in intercompany sales of intellectual property, a decrease in the valuation allowance recorded against deferred tax assets related to state tax credits and an increase in foreign income taxed at lower rates. These amounts were partially offset by an increase in profitability and the release of certain tax reserves related to the expiration of local statues of limitations.

For the year ended December 31, 2021, our effective income tax rate was lower than the federal statutory tax rate due to foreign income taxed at lower rates, the excess tax benefit related to stock-based compensation and the benefit of U.S. federal, state and foreign research and development credits. These amounts were partially offset by non-deductible stock-based compensation and state taxes.

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For the year ended December 31, 2020, our effective income tax rate was lower than the federal statutory tax rate due to foreign income taxed at lower rates, the impact of the excess tax benefit related to stock-based compensation and the benefit of U.S. federal, state and foreign research and development credits. These amounts were partially offset by non-deductible stock-based compensation, state taxes and the valuation allowance recorded against tax credits and foreign net operating loss carryforwards.

For the year ended December 31, 2019, our effective income tax rate was lower than the federal statutory tax rate due to the release of certain tax reserves related to the expiration of local statutes of limitations, foreign income taxed at lower rates, the excess tax benefit related to stock-based compensation and the benefit of the U.S. federal, state and foreign research and development credits. These amounts were partially offset by the valuation allowance recorded against deferred tax assets related to state tax credits, non-deductible executive compensation, an intercompany sale of intellectual property and state income taxes.

Our effective income tax rate may fluctuate between fiscal years and from quarter to quarter due to items arising from discrete events, such as tax benefits from the disposition of employee equity awards, tax law changes and settlements of tax audits and assessments. Our effective income tax rate is also impacted by, and may fluctuate in any given period because of, the composition of income in foreign jurisdictions where tax rates differ depending on the local statutory rates.

Refer to Note 19 to the consolidated financial statements included elsewhere in this annual report on Form 10-K for additional information regarding unrecognized tax benefits that, if recognized, would impact the effective income tax rate in the next 12 months and the potential impact that current litigation related to an adverse audit finding could have on our results of operations.

Loss from Equity Method Investment

For the Years Ended December 31,For the Years Ended December 31,
(in thousands)20212020% Change20202019% Change
Loss from equity method investment$14,008$13,1066.9%$13,106$1,0961,095.8%
As a percentage of revenue0.4%0.4%0.4%%

During 2019, we began recognizing our share of earnings from our investment with Mitsubishi UFJ Financial Group, or MUFG, in a joint venture, Global Open Network, Inc., or GO-NET. GO-NET intended to operate a blockchain-based online payment network. In February 2022, MUFG, the majority owner of GO-NET, announced it was preparing to suspend the operations of GO-NET. We recorded a loss of $13.1 million during the year ended December 31, 2020, which included an $11.0 million impairment to reduce the Company's investment to its fair value due to a modified business plan and continued negative projected cash flows. We recorded a loss of $14.0 million and $1.1 million during the years ended December 31, 2021 and 2019, respectively, which reflects our share of the losses incurred by GO-NET during those years. We expect to record additional losses in 2022 as GO-NET winds down its operations. However, we do not expect those losses to be more than our remaining investment on December 31, 2021 of $7.5 million.

Non-GAAP Financial Measures

In addition to providing financial measurements based on generally accepted accounting principles in the United States of America, or GAAP, we provide additional financial metrics that are not prepared in accordance with GAAP, or non-GAAP financial measures. Management uses non-GAAP financial measures, in addition to GAAP financial measures, to understand and compare operating results across accounting periods, for financial and operational decision making, for planning and forecasting purposes, to measure executive compensation and to evaluate our financial performance. These non-GAAP financial measures are non-GAAP income from operations, non-GAAP operating margin, non-GAAP net income, non-GAAP net income per share, Adjusted EBITDA, Adjusted EBITDA margin, capital expenditures and impact of foreign currency exchange rates, as discussed below.

Management believes that these non-GAAP financial measures reflect our ongoing business in a manner that allows for meaningful comparisons and analysis of trends in the business, as they facilitate comparing financial results across accounting periods and to those of peer companies. Management also believes that these non-GAAP financial measures enable investors to evaluate our operating results and future prospects in the same manner as management. These non-GAAP financial measures may exclude expenses and gains that may be unusual in nature, infrequent or not reflective of our ongoing operating results.

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The non-GAAP financial measures do not replace the presentation of our GAAP financial measures and should only be used as a supplement to, not as a substitute for, our financial results presented in accordance with GAAP.

The non-GAAP adjustments, and our basis for excluding them from non-GAAP financial measures, are outlined below:

•Amortization of acquired intangible assets – We have incurred amortization of intangible assets, included in our GAAP financial statements, related to various acquisitions we have made. The amount of an acquisition's purchase price allocated to intangible assets and term of its related amortization can vary significantly and are unique to each acquisition; therefore, we exclude amortization of acquired intangible assets from our non-GAAP financial measures to provide investors with a consistent basis for comparing pre- and post-acquisition operating results.

•Stock-based compensation and amortization of capitalized stock-based compensation – Although stock-based compensation is an important aspect of the compensation paid to our employees, the grant date fair value varies based on the stock price at the time of grant, varying valuation methodologies, subjective assumptions and the variety of award types. This makes the comparison of our current financial results to previous and future periods difficult to interpret; therefore, we believe it is useful to exclude stock-based compensation and amortization of capitalized stock-based compensation from our non-GAAP financial measures in order to highlight the performance of our core business and to be consistent with the way many investors evaluate our performance and compare our operating results to peer companies.

•Acquisition-related costs – Acquisition-related costs include transaction fees, advisory fees, due diligence costs and other direct costs associated with strategic activities. In addition, subsequent adjustments to our initial estimated amounts of contingent consideration and indemnification associated with specific acquisitions are included within acquisition-related costs. These amounts are impacted by the timing and size of the acquisitions. We exclude acquisition-related costs from our non-GAAP financial measures to provide a useful comparison of our operating results to prior periods and to our peer companies because such amounts vary significantly based on the magnitude of our acquisition transactions and do not reflect our core operations.

•Restructuring charges – We have incurred restructuring charges from programs that have significantly changed either the scope of the business undertaken by us or the manner in which that business is conducted. These charges include severance and related expenses for workforce reductions, impairments of long-lived assets that will no longer be used in operations (including right-of-use assets, other facility-related property and equipment and internal-use software) and termination fees for any contracts cancelled as part of these programs. We exclude these items from our non-GAAP financial measures when evaluating our continuing business performance as such items vary significantly based on the magnitude of the restructuring action and do not reflect expected future operating expenses. In addition, these charges do not necessarily provide meaningful insight into the fundamentals of current or past operations of our business.

•Amortization of debt discount and issuance costs and amortization of capitalized interest expense – In August 2019, we issued $1,150 million of convertible senior notes due 2027 with a coupon interest rate of 0.375%. In May 2018, we issued $1,150 million of convertible senior notes due 2025 with a coupon interest rate of 0.125%. In February 2014, we issued $690 million of convertible senior notes due 2019 with a coupon interest rate of 0%. The imputed interest rates of these convertible senior notes were 3.10%, 4.26% and 3.20%, respectively. This is a result of the debt discounts recorded for the conversion features that are required to be separately accounted for as equity under GAAP, thereby reducing the carrying values of the convertible debt instruments. The debt discounts are amortized as interest expense together with the issuance costs of the debt. The interest expense excluded from our non-GAAP results is comprised of these non-cash components and is excluded from management's assessment of our operating performance because management believes the non-cash expense is not representative of ongoing operating performance.

•Gains and losses on investments – We have recorded gains and losses from the disposition, changes to fair value and impairment of certain investments. We believe excluding these amounts from our non-GAAP financial measures is useful to investors as the types of events giving rise to these gains and losses are not representative of our core business operations and ongoing operating performance.

•Legal settlements – We have incurred losses related to the settlement of legal matters. We believe excluding these amounts from our non-GAAP financial measures is useful to investors as the types of events giving rise to them are not representative of our core business operations.

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•Endowment of Akamai Foundation – We have incurred expenses to endow the Akamai Foundation, a private corporate foundation dedicated to encouraging the next generation of technology innovators by supporting math and science education. Our first endowment was in 2018 to enable a permanent endowment for the Akamai Foundation to allow it to expand its reach. In the fourth quarter of 2020 we supplemented the endowment to enable specific initiatives to increase diversity in the technology industry. We believe excluding these amounts from non-GAAP financial measures is useful to investors as these infrequent and nearly one-time expenses are not representative of our core business operations.

•Transformation costs – We have incurred professional services fees associated with internal changes that are designed to improve operating margins and that are part of a discrete planned transformation program intended to significantly change the manner in which business is conducted. We believe excluding these amounts from our non-GAAP financial measures is useful to investors as the types of events and activities giving rise to them occur infrequently and are not representative of our core business operations and ongoing operating performance.

•Income and losses from equity method investment – We record income or losses on our share of earnings and losses from our equity method investment. We exclude such income and losses because we do not direct control over the operations of the investment and the related income and losses are not representative of our core business operations.

•Income tax effect of non-GAAP adjustments and certain discrete tax items – The non-GAAP adjustments described above are reported on a pre-tax basis. The income tax effect of non-GAAP adjustments is the difference between GAAP and non-GAAP income tax expense. Non-GAAP income tax expense is computed on non-GAAP pre-tax income (GAAP pre-tax income adjusted for non-GAAP adjustments) and excludes certain discrete tax items (such as recording or releasing of valuation allowances), if any. We believe that applying the non-GAAP adjustments and their related income tax effect allows us to highlight income attributable to our core operations.

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The following table reconciles GAAP income from operations to non-GAAP income from operations and non-GAAP operating margin for the years ended December 31, 2021, 2020 and 2019 (in thousands):

202120202019
Income from operations$783,148$658,534$548,918
Amortization of acquired intangible assets48,01942,04938,581
Stock-based compensation202,759197,411187,140
Amortization of capitalized stock-based compensation and capitalized interest expense35,89433,20234,438
Restructuring charge10,73737,28617,153
Acquisition-related costs13,3175,5791,920
Legal settlements27510,000
Endowment of Akamai Foundation20,000
Transformation costs5,527
Non-GAAP income from operations$1,093,874$994,336$843,677
GAAP operating margin23%21%19%
Non-GAAP operating margin32%31%29%

The following table reconciles GAAP net income to non-GAAP net income for the years ended December 31, 2021, 2020 and 2019 (in thousands):

202120202019
Net income$651,642$557,054$478,035
Amortization of acquired intangible assets48,01942,04938,581
Stock-based compensation202,759197,411187,140
Amortization of capitalized stock-based compensation and capitalized interest expense35,89433,20234,438
Restructuring charge10,73737,28617,153
Acquisition-related costs13,3175,5791,920
Legal settlements27510,000
Endowment of Akamai Foundation20,000
Transformation costs5,527
Amortization of debt discount and issuance costs66,02562,82345,857
(Gain) loss on investments(3,680)(7,228)60
Loss from equity method investment14,00813,1061,096
Income tax effect of above non-GAAP adjustments and certain discrete tax items(96,164)(103,280)(80,488)
Non-GAAP net income$942,557$858,277$739,319

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The following table reconciles GAAP net income per diluted share to non-GAAP net income per diluted share for the years ended December 31, 2021, 2020 and 2019 (in thousands, except per share data):

202120202019
GAAP net income per diluted share$3.93$3.37$2.90
Adjustments to net income:
Amortization of acquired intangible assets0.290.250.23
Stock-based compensation1.221.191.14
Amortization of capitalized stock-based compensation and capitalized interest expense0.220.200.21
Restructuring charge0.060.230.10
Acquisition-related costs0.080.030.01
Legal settlements0.06
Endowment of Akamai Foundation0.12
Transformation costs0.03
Amortization of debt discount and issuance costs0.400.380.28
(Gain) loss on investments(0.02)(0.04)
Loss from equity method investment0.080.080.01
Income tax effect of above non-GAAP adjustments and certain discrete tax items(0.58)(0.63)(0.49)
Adjustment for shares (1)0.060.04
Non-GAAP net income per diluted share (2)$5.74$5.22$4.49
Shares used in GAAP per diluted share calculations165,804165,213164,573
Impact of benefit from note hedge transactions (1)(1,600)(873)
Shares used in non-GAAP per diluted share calculations (1)164,204164,340164,573

(1) Shares used in non-GAAP per diluted share calculations have been adjusted for the years ended December 31, 2021 and 2020, for the benefit of our note hedge transactions. During 2021 and 2020, our average stock price was in excess of $95.10, which is the initial conversion price of our convertible senior notes due in 2025. See further discussion below.

(2) May not foot due to rounding.

Non-GAAP net income per diluted share is calculated as non-GAAP net income divided by diluted weighted average common shares outstanding. GAAP diluted weighted average common shares outstanding are adjusted in non-GAAP per share calculations for the shares that would be delivered to us pursuant to the note hedge transactions entered into in connection with the issuance of our convertible senior notes. Under GAAP, shares delivered under hedge transactions are not considered offsetting shares in the fully-diluted share calculation until they are delivered. However, we would receive a benefit from the note hedge transactions and would not allow the dilution to occur, so management believes that adjusting for this benefit provides a meaningful view of net income per share. Unless our weighted average stock price is greater than $95.10, the initial conversion price of the convertible senior notes due 2025, or $116.18, the initial conversion price of the convertible senior notes due 2027, there will be no difference between our GAAP and non-GAAP diluted weighted average common shares outstanding.

We consider Adjusted EBITDA to be another important indicator of the operational strength and performance of our business and a good measure of our historical operating trends. Adjusted EBITDA eliminates items that we do not consider to be part of our core operations. We define Adjusted EBITDA as GAAP net income excluding the following items: interest income; income taxes; depreciation and amortization of tangible and intangible assets; stock-based compensation; amortization of capitalized stock-based compensation; acquisition-related costs; restructuring charges; gains and losses on legal settlements; costs incurred related to endowment contributions to the Akamai Foundation; transformation costs; foreign exchange gains and losses; interest expense; amortization of capitalized interest expense; certain gains and losses on investments; gains and losses from equity method investments; and other non-recurring or unusual items that may arise from time to time. Adjusted EBITDA margin represents Adjusted EBITDA stated as a percentage of revenue.

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The following table reconciles GAAP net income to Adjusted EBITDA and Adjusted EBITDA margin for the years ended December 31, 2021, 2020 and 2019 (in thousands):

202120202019
Net income$651,642$557,054$478,035
Amortization of acquired intangible assets48,01942,04938,581
Stock-based compensation202,759197,411187,140
Amortization of capitalized stock-based compensation and capitalized interest expense35,89433,20234,438
Restructuring charge10,73737,28617,153
Acquisition-related costs13,3175,5791,920
Legal settlements27510,000
Interest income(15,620)(29,122)(34,355)
Endowment of Akamai Foundation20,000
Transformation costs5,527
Amortization of debt discount and issuance costs72,33269,12049,364
Provision for income taxes62,57145,92253,350
Depreciation and amortization467,048403,160367,655
(Gain) loss on investments(3,680)(7,228)60
Loss from equity method investment14,00813,1061,096
Other expense, net1,8959,6821,368
Adjusted EBITDA$1,560,922$1,397,496$1,211,332
Net income margin19%17%17%
Adjusted EBITDA margin45%44%42%

Impact of Foreign Currency Exchange Rates

Revenue and earnings from our international operations have historically been an important contributor to our financial results. Consequently, our financial results have been impacted, and management expects they will continue to be impacted, by fluctuations in foreign currency exchange rates. For example, when the local currencies of our foreign subsidiaries weaken, generally our consolidated results stated in U.S. dollars are negatively impacted.

Because exchange rates are a meaningful factor in understanding period-to-period comparisons, management believes the presentation of the impact of foreign currency exchange rates on revenue and earnings enhances the understanding of our financial results and evaluation of performance in comparison to prior periods. The dollar impact of changes in foreign currency exchange rates presented is calculated by translating current period results using monthly average foreign currency exchange rates from the comparative period and comparing them to the reported amount. The percentage change at constant currency presented is calculated by comparing the prior period amounts as reported and the current period amounts translated using the same monthly average foreign currency exchange rates from the comparative period.

Liquidity and Capital Resources

To date, we have financed our operations primarily through public and private sales of debt and equity securities and cash generated by operations. As of December 31, 2021, our cash, cash equivalents and marketable securities, which primarily consisted of corporate bonds and U.S. government agency obligations, totaled $2.2 billion. Factoring in our outstanding convertible senior notes of $2.3 billion, our net cash at December 31, 2021 was in a negative position of $133.8 million. We place our cash investments in instruments that meet high-quality credit standards, as specified in our investment policy. Our investment policy also limits the amount of our credit exposure to any one issue or issuer and seeks to manage these assets to achieve our goals of preserving principal and maintaining adequate liquidity at all times.

Changes in cash, cash equivalents and marketable securities are dependent upon changes in, among other things, working capital items such as accounts receivable, deferred revenue, accounts payable and various accrued expenses, as well as changes

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in our capital and financial structure due to common stock repurchases, debt repayments and issuances, acquisitions, purchases and sales of marketable securities and similar events. We believe that our strong balance sheet and cash position are important competitive differentiators that provide the financial stability and flexibility to enable us to continue to make investments at opportune times.

As of December 31, 2021, we had cash and cash equivalents of $346.4 million held in accounts outside the U.S. The U.S. Tax Cuts and Jobs Act establishes a territorial tax system in the U.S., which provides companies with the potential ability to repatriate earnings with minimal U.S. federal income tax impact. As a result, our liquidity is not expected to be materially impacted by the amount of cash and cash equivalents held in accounts outside the U.S.

The following table summarizes current and long-term material cash requirements as of December 31, 2021, which we expect to fund primarily with operating cash flows (in thousands):

Payments Due by Period
TotalLess than 12 Months12 to 36 Months36 to 60 MonthsMore than 60 Months
Operating lease obligations: (1)
Real estate arrangements$784,239$80,070$153,089$134,800$416,280
Co-location arrangements245,46897,49489,37037,96420,640
Bandwidth agreements126,223102,14424,079
Open vendor purchase orders315,379226,92688,162291
Convertible senior notes2,300,0001,150,0001,150,000
Total contractual obligations$3,771,309$506,634$354,700$1,323,055$1,586,920

(1) Excludes $67.2 million of obligations for operating leases that have not yet commenced. See Note 12 to our consolidated financial statements included elsewhere in this annual report on Form 10-K for additional information.

In accordance with the authoritative guidance for accounting for uncertainty in income taxes, as of December 31, 2021, we had unrecognized tax benefits of $23.1 million, including $7.2 million of accrued interest and penalties. We believe that it is reasonably possible that $4.8 million of our unrecognized tax benefits will be recognized by the end of 2022. The settlement period for the remaining amount of the unrecognized tax benefits is unknown.

Cash Provided by Operating Activities

For the Years Ended December 31,
(in thousands)202120202019
Net income$651,642$557,054$478,035
Non-cash reconciling items included in net income793,445727,829683,132
Changes in operating assets and liabilities(40,524)(69,883)(102,863)
Net cash flows provided by operating activities$1,404,563$1,215,000$1,058,304

The increase in cash provided by operating activities for 2021 as compared to 2020 was primarily due to increased profitability in 2021 and timing of payments from customers.

The increase in cash provided by operating activities for 2020 as compared to 2019 was primarily due to increased profitability in 2020 and timing of vendor payments. The increase was partially offset by the timing of payments from customers.

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Cash Used in Investing Activities

For the Years Ended December 31,
(in thousands)202120202019
Cash paid for acquired businesses, net of cash acquired$(598,825)$(127,999)$(165,329)
Cash paid for asset acquisition(36,376)
Cash paid for equity method investment(36,008)
Purchases of property and equipment and capitalization of internal-use software development costs(545,230)(731,872)(562,077)
Net marketable securities activity501,478(154,848)(904,919)
Other investing activities(4,322)8,121399
Net cash used in investing activities$(646,899)$(1,042,974)$(1,667,934)

The decrease in cash used in investing activities in 2021 as compared to 2020 was primarily driven by a decrease in purchases of marketable securities, as we did not reinvest our matured securities in order to fund our acquisition of Guardicore in October 2021. The decrease was also attributable to a reduction of purchases of property and equipment as we slowed expansion of our network, as compared to 2020. These decreases were partially offset by an increase in cash paid for acquired businesses in 2021, due to the size of the acquisition completed in 2021, as compared to 2020.

The decrease in cash used in investing activities in 2020 as compared to 2019 was driven by a decrease in purchases of marketable securities. During 2019 we invested some of the proceeds from our August 2019 issuance of convertible senior notes in marketable securities, which increased our purchases in that year and did not recur in 2020. The decrease in cash used in investing activities in 2020 as compared to 2019 was partially offset by an increase in purchases of property and equipment during 2020 to support the increase in traffic we experienced on our network and expect to continue to experience in the future.

Cash Used in Financing Activities

For the Years Ended December 31,
(in thousands)202120202019
Activity related to convertible senior notes$$$318,554
Activity related to stock-based compensation(39,480)(30,053)(18,154)
Repurchases of common stock(522,255)(193,588)(334,519)
Other financing activities(268)(1,558)
Net cash used in financing activities$(562,003)$(223,641)$(35,677)

The increase in cash used in financing activities in 2021 as compared to 2020 was primarily the result of increased share repurchases. Effective November 1, 2018, our board of directors authorized a $1.1 billion share repurchase program through December 31, 2021. In October 2021, our board of directors authorized a new $1.8 billion share repurchase program, effective January 1, 2022 through December 31, 2024. Our goals for the share repurchase programs are to offset the dilution created by our employee equity compensation programs over time and provide the flexibility to return capital to shareholders as business and market conditions warrant, while still preserving our ability to pursue other strategic opportunities.

The change in net cash used in financing activities during 2020 as compared to 2019 was due to the net proceeds received from our August 2019 issuance of our convertible senior notes and related bond hedge and warrant transaction. The increase was partially offset by the repayment of our convertible senior notes that were due in February 2019 and a decrease in shares repurchased under our repurchase programs.

During 2021, 2020 and 2019, we repurchased 4.7 million, 2.0 million and 4.0 million shares of our common stock, respectively, at an average price per share of $109.97, $98.53 and $82.90, respectively.

Convertible Senior Notes

In August 2019, we issued $1,150.0 million in par value of convertible senior notes due 2027 and entered into related convertible note hedge and warrant transactions. We have used and expect to continue to use the net proceeds of the offering for

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share repurchases, working capital and general corporate purposes, including potential acquisitions and other strategic transactions.

In May 2018, we issued $1,150.0 million in par value of convertible senior notes due 2025 and entered into related convertible note hedge and warrant transactions. We used a portion of the net proceeds to repay at maturity all of our $690.0 million outstanding aggregate principle amount of convertible senior notes due in 2019. In addition, we have used and expect to continue to use the remaining net proceeds of the offering for share repurchases, working capital and general corporate purposes, including potential acquisitions and other strategic transactions.

In February 2014, we issued $690.0 million in par value of convertible senior notes due 2019 and entered into related convertible note hedge and warrant transactions. We repaid the full $690.0 million in principal amount of the notes in cash in February 2019, as the notes matured and no conversions occurred.

The terms of the notes and the hedge and warrant transactions are discussed more fully in Note 11 to the consolidated financial statements included elsewhere in this annual report on Form 10-K.

Revolving Credit Facility

In May 2018, we entered into a $500.0 million, five-year revolving credit agreement, or the Credit Agreement. Borrowings under the facility may be used to finance working capital needs and for general corporate purposes. The facility provides for an initial $500.0 million in revolving loans. Under specified circumstances, the facility can be increased to up to $1.0 billion in aggregate principal amount.

Borrowings under the Credit Agreement bear interest, at our option, at a base rate plus a spread of 0.00% to 0.25% or an adjusted LIBOR rate plus a spread of 0.875% to 1.25%, in each case with such spread being determined based on our consolidated leverage ratio specified in the Credit Agreement. Regardless of what amounts, if any, are outstanding under the Credit Agreement, we are also obligated to pay an ongoing commitment fee on undrawn amounts at a rate of 0.075% to 0.15%, with such rate being based on our consolidated leverage ratio specified in the Credit Agreement.

The Credit Agreement contains customary representations and warranties, affirmative and negative covenants and events of default. Principal covenants include a maximum consolidated leverage ratio and a minimum consolidated interest coverage ratio. There were no outstanding borrowings under the Credit Agreement as of December 31, 2021.

Liquidity Outlook

Based on our present business plan, we expect our current cash, cash equivalents and marketable securities balances and our forecasted cash flows from operations to be sufficient to meet our foreseeable cash needs for at least the next 12 months. Our foreseeable cash needs, in addition to our recurring operating costs, include our expected capital expenditures, investments in information technology, our anticipated acquisition of Linode, other potential strategic acquisitions, anticipated share repurchases, lease and purchase commitments and settlements of other long-term liabilities. In particular, our anticipated acquisition of Linode will require approximately $900.0 million, net of cash acquired and subject to post-close adjustments. We plan to fund the acquisition of Linode with cash, cash equivalents and marketable securities on hand. We also have access to our Credit Agreement, should we require additional resources to fund the acquisition of Linode or other recurring operating costs.

Off-Balance Sheet Arrangements

We have entered into indemnification agreements with third parties, including vendors, customers, landlords, our officers and directors, shareholders of acquired companies, joint venture partners and third parties to which we license technology. Generally, these indemnification agreements require us to reimburse losses suffered by a third party due to various events, such as lawsuits arising from patent or copyright infringement or our negligence. These indemnification obligations are considered off-balance sheet arrangements in accordance with the authoritative guidance for guarantor’s accounting and disclosure requirements for guarantees, including indirect guarantees of indebtedness of others. See Note 13 to our consolidated financial statements included elsewhere in this annual report on Form 10-K for further discussion of these indemnification agreements. The fair value of guarantees issued or modified during 2021 and 2020 was determined to be immaterial.

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Significant Accounting Policies and Estimates

See Note 2 to the consolidated financial statements included elsewhere in this annual report on Form 10-K for information regarding recent and newly adopted accounting pronouncements.

Application of Critical Accounting Policies and Estimates

Overview

Our MD&A is based upon our consolidated financial statements, which have been prepared in accordance with GAAP. These principles require us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses, cash flow and related disclosure of contingent assets and liabilities. Our estimates include those related to revenue recognition, accounts receivable and related reserves, valuation and impairment of marketable securities, capitalized internal-use software development costs, goodwill and acquired intangible assets, income tax reserves, impairment and useful lives of long-lived assets and stock-based compensation. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances at the time such estimates are made. Actual results may differ from these estimates. For a complete description of our significant accounting policies, see Note 2 to our consolidated financial statements included elsewhere in this annual report on Form 10-K.

Definitions

We define our critical accounting policies as those policies that require us to make subjective estimates and judgments about matters that are uncertain and are likely to have a material impact on our consolidated financial statements. Our estimates are based upon assumptions and judgments about matters that are highly uncertain at the time an accounting estimate is made and applied and require us to assess a range of potential outcomes.

Review of Critical Accounting Policies and Estimates

Revenue Recognition

Our contracts with customers sometimes include promises to transfer multiple services to a customer. Determining whether services are distinct performance obligations often requires the exercise of judgment by management. Advanced features that enhance a main product or service and are highly interrelated are generally not considered distinct; rather, they are combined with the service they relate to into one performance obligation. Different determinations related to combining services into performance obligations could result in differences in the timing and amount of revenue recognized in a period.

Determination of the standalone selling price, or SSP, also requires the exercise of judgment by management. SSP is based on observable inputs such as the price we charge for the service when sold separately, or the discounted list price per management’s approved price list. In cases where services are not sold separately or price list rates are not available, a cost-plus-margin approach or adjusted market approach is used to determine SSP. Changes to SSP could result in differences in the allocation of transaction price among performance obligations, which could result in differences in the timing and amount of revenue recognized in a period.

From time to time, we enter into contracts to sell services or license technology to unrelated enterprises at or about the same time that we enter into contracts to purchase products or services from the same enterprises. Consideration payable to a customer is reviewed as part of the transaction price. If the payment to the customer does not represent payment for a distinct service, revenue is recognized only up to the net amount of consideration after customer payment obligations are considered. Different determinations on whether a payment represents a distinct service could result in differences in the amount of revenue recognized.

We may also resell the licenses or services of third parties. If we are acting as an agent in an arrangement with a customer to provide third party services, the transaction price reflects only the net amount to which we will be entitled, after accounting for payments made to the third party responsible for satisfying the performance obligation. Different determinations on whether we are acting as an agent or a principal could change the amount of revenue recognized.

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Accounts Receivable and Related Reserves

Trade accounts receivable are recorded at the invoiced amounts and do not bear interest. In addition to trade accounts receivable, our accounts receivable balance includes unbilled accounts that represent revenue recorded for customers that is typically billed within one month. We record allowances against our accounts receivable balance, primarily for current expected credit losses. Increases and decreases in the allowance for current expected credit losses are included as a component of general and administrative expense in the consolidated statements of income.

Estimates are used in determining our allowance for current expected credit losses using historical loss rates for the previous twelve months as well as expectations about the future where we have been able to develop forecasts to supports our estimates. In addition, the allowance for current expected credit losses considers outstanding balances on a customer-specific, account-by-account basis. We assess collectability based upon a review of customer receivables from prior sales with collection issues where we no longer believe that the customer has the ability to pay for services previously provided. We also perform ongoing credit evaluations of our customers. If such an evaluation indicates that payment is no longer reasonably assured for services provided, any future services provided to that customer will result in the creation of a cash basis reserve until we receive consistent payments.

Valuation and Impairment of Marketable Securities

We measure the fair value of our financial assets and liabilities at the end of each reporting period. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. We have certain financial assets and liabilities recorded at fair value (principally cash equivalents and short- and long-term marketable securities) that have been classified as Level 1, 2 or 3 within the fair value hierarchy. Fair values determined by Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that we can access at the reporting date. Fair values determined by Level 2 inputs utilize data points other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Fair values determined by Level 3 inputs are based on unobservable data points for the asset or liability.

Marketable securities are considered to be impaired when a decline in fair value below cost basis is determined to be other-than-temporary. We periodically evaluate whether a decline in fair value below cost basis is other-than-temporary by considering available evidence regarding these investments including, among other factors, the duration of the period that, and extent to which, the fair value is less than cost basis; the financial health of, and business outlook for, the issuer, including industry and sector performance and operational and financing cash flow factors; overall market conditions and trends; and our intent and ability to retain our investment in the security for a period of time sufficient to allow for an anticipated recovery in market value. Once a decline in fair value is determined to be other-than-temporary, a write-down is recorded and a new cost basis in the security is established. Assessing the above factors involves inherent uncertainty. Write-downs, if recorded, could be materially different from the actual market performance of marketable securities in our portfolio if, among other things, relevant information related to our investments and marketable securities was not publicly available or other factors not considered by us would have been relevant to the determination of impairment.

Impairment and Useful Lives of Long-Lived Assets

We review our long-lived assets, such as property and equipment, operating lease right-of-use assets and acquired intangible assets, for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Events that would trigger an impairment review include a change in the use of the asset or forecasted negative cash flows related to the asset. When such events occur, we compare the carrying amount of the asset to the undiscounted expected future cash flows related to the asset. If this comparison indicates that impairment is present, the amount of the impairment is calculated as the difference between the carrying amount and the fair value of the asset. If a readily determinable market price does not exist, fair value is estimated using discounted expected cash flows attributable to the asset. The estimates required to apply this accounting policy include forecasted usage of the long-lived assets, the useful lives of these assets and expected future cash flows. Changes in these estimates could materially impact results from operations.

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Goodwill and Acquired Intangible Assets

We test goodwill for impairment on an annual basis, as of December 31, or more frequently if events or changes in circumstances indicate that the asset might be impaired. We have concluded that we have one reporting unit and that our chief operating decision maker is our chief executive officer and the executive management team. We have assigned the entire balance of goodwill to our one reporting unit. The fair value of the reporting unit was based on our market capitalization as of each of December 31, 2021 and 2020, and it was substantially in excess of the carrying value of the reporting unit at each date.

Acquired intangible assets consist of completed technologies, customer relationships, trademarks and trade names, non-compete agreements and acquired license rights. We engaged third party valuation specialists to assist us with the initial measurement of the fair value of acquired intangible assets. Acquired intangible assets, other than goodwill, are amortized over their estimated useful lives based upon the estimated economic value derived from the related intangible assets.

Income Taxes

Our provision for income taxes is comprised of a current and a deferred portion. The current income tax provision is calculated as the estimated taxes payable or refundable on tax returns for the current year. The deferred income tax provision is calculated for the estimated future tax effects attributable to temporary differences and carryforwards by using expected tax rates in effect in the years during which the differences are expected to reverse or the carryforwards are expected to be realized.

We currently have net deferred tax assets, comprised of net operating loss, or NOL, carryforwards, tax credit carryforwards and deductible temporary differences. Our management periodically weighs the positive and negative evidence to determine if it is more-likely-than-not that some or all of the deferred tax assets will be realized. In determining our net deferred tax assets and valuation allowances, annualized effective tax rates and cash paid for income taxes, management is required to make judgments and estimates about domestic and foreign profitability, the timing and extent of the utilization of NOL carryforwards, applicable tax rates, transfer pricing methodologies and tax planning strategies. Judgments and estimates related to our projections and assumptions are inherently uncertain; therefore, actual results could differ materially from our projections.

We have recorded certain tax reserves to address potential exposures involving our income tax positions. These potential tax liabilities result from the varying application of statutes, rules, regulations and interpretations by different taxing jurisdictions. Our estimate of the value of our tax reserves contains assumptions based on past experiences and judgments about the interpretation of statutes, rules and regulations by taxing jurisdictions. It is possible that the costs of the ultimate tax liability or benefit from these matters may be more or less than the amount that we estimated.

Uncertainty in income taxes is recognized in our consolidated financial statements using a two-step process to determine the amount of tax benefit to be recognized. First, the tax position must be evaluated to determine the likelihood that it will be sustained upon external examination. If the tax position is deemed more-likely-than-not to be sustained based on technical merit, the tax position is then assessed to determine the amount of benefit to recognize in the financial statements. The amount of the benefit that may be recognized is the largest amount that we believe has a greater than 50% likelihood of being realized upon ultimate settlement.

Accounting for Stock-Based Compensation

We issue stock-based compensation awards including stock options, restricted stock units and deferred stock units. We measure the fair value of these awards at the grant date and recognize such fair value as expense over the vesting period. We have selected the Black-Scholes option pricing model to determine the fair value of stock option awards and the Monte Carlo simulation model to determine the fair value of market-based restricted stock unit awards. Determining the fair value of stock-based awards at the grant date requires judgment, including estimating the expected life of the stock awards and the volatility of the underlying common stock. Our assumptions may differ from those used in prior periods. Changes to the assumptions may have a significant impact on the fair value of stock-based awards, which could have a material impact on our financial statements. Judgment is also required in estimating the number of stock-based awards that are expected to be forfeited. Should our actual forfeiture rates differ significantly from our estimates, our stock-based compensation expense and results of operations could be materially impacted. In addition, for awards that vest and become exercisable only upon achievement of specified performance conditions, we make judgments and estimates each quarter about the probability that such performance conditions will be met or achieved. Changes to the estimates we make from time to time may have a significant impact on our stock-based compensation expense and could materially impact our results of operations.

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Capitalized Internal-Use Software Costs

We capitalize salaries and related costs, including stock-based compensation, of employees and consultants who devote time to the development of internal-use software development projects, as well as interest expense related to our senior convertible notes. Capitalization begins during the application development stage, once the preliminary project stage has been completed. If a project constitutes an enhancement to previously-developed software, we assess whether the enhancement creates additional functionality to the software, thus qualifying the work incurred for capitalization. Once the project is available for general release, capitalization ceases and we estimate the useful life of the asset and begin amortization. We periodically assess whether triggering events are present to review internal-use software for impairment. Changes in our estimates related to internal-use software would increase or decrease operating expenses or amortization recorded during the period.