ON SEMICONDUCTOR CORP (ON)

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

You should read the following discussion in conjunction with our audited historical consolidated financial statements, which are included in the 2025 Form 10-K, and our unaudited consolidated financial statements for the fiscal quarter ended July 3, 2026, which are included elsewhere in this Form 10-Q. This Management's Discussion and Analysis of Financial Condition and Results of Operations contains statements that are forward-looking. These statements are based on expectations and assumptions as of the date of this Form 10-Q and are subject to risks, uncertainties and other factors. Actual results could differ materially because of the factors discussed below or elsewhere in this Form 10-Q. See Part II, Item 1A. "Risk Factors" of this Form 10-Q and Part I, Item 1A. "Risk Factors" of the 2025 Form 10-K.

Executive Overview

onsemi Overview

ON Semiconductor Corporation ("onsemi," "we," "us," "our," or the "Company"), with its wholly and majority-owned subsidiaries, operates under the onsemiTM brand. The Company is organized into three operating and reportable segments: the Power Solutions Group ("PSG"), the Analog and Mixed-Signal Group ("AMG"), and the Intelligent Sensing Group ("ISG").

We deliver intelligent power and intelligent sensing technologies that enable electrification, energy efficiency, safety, and automation across automotive, industrial, and AI data center end-markets. Our intelligent power technologies enable electrified drivetrain and power management applications in the automotive industry and support efficient fast‑charging systems. Our intelligent sensing technologies enable advanced safety applications in automotive through industry‑leading performance and reliability.

We believe the evolution of the automotive industry, with advancements in autonomous driving, ADAS, vehicle electrification, and increased electronics content across vehicle platforms, is reshaping the boundaries of transportation. Through sensing integration, we believe our intelligent power solutions achieve increased efficiencies compared to our peers. This integration allows lower temperature operation and reduced cooling requirements while saving costs and minimizing weight. In addition, our power solutions deliver power with less die per module, improving performance efficiency for a given battery or power capacity.

In the industrial market, our intelligent power technologies propel sustainable energy for the highest efficiency solar strings and industrial power. In the medical field, our intelligent power technologies extend the life of personal diagnostic devices, such as continuous glucose monitors. Our intelligent sensing technologies support the next generation industry through automation, allowing for smarter factories and buildings. Our intelligent power and sensing technologies are enabling robotics and humanoids.

In our other end-market, which includes AI data center products, our intelligent power technologies enable energy efficiency in a market in which energy needs are growing at an exponential rate, and AI data center operators are focused on reducing energy consumption. We believe we have one of the most comprehensive portfolios of products and technologies for this market to address the complete power tree, and we are well-positioned to benefit as next-generation AI data center processors and racks enter the market.

Business Strategy Developments

We are focused on increasing profitable revenue through differentiated technologies to address the high-growth megatrends in automotive, industrial and other markets which include AI data centers. We continue to optimize and right-size our manufacturing footprint to align our capacity with our long-term outlook, while focusing on generating efficiencies that result in meaningful gross margin expansion and operating cash flows. We intend to achieve efficiencies in our operating and capital expenditures and invest in research and development initiatives to accelerate growth in high-margin products.

Definitive Agreement to Acquire Synaptics Incorporated

On June 25, 2026, we entered into an Agreement and Plan of Reorganization (the "Merger Agreement") with Sonic Acquisition Corp. and Synaptics Incorporated ("Synaptics"), pursuant to which Synaptics will become a wholly owned subsidiary of onsemi (the “Merger”). At the effective time of the Merger (the “Closing”), each outstanding share of Synaptics common stock, subject to limited exceptions set forth in the Merger Agreement, will be converted into the right to receive 1.350 shares of the Company's common stock. Based on the exchange ratio, we expect Synaptics stockholders will own approximately 12% of the combined company on a pro forma basis upon closing. The Merger Agreement also provides for our assumption of certain

30

Table of Contents

Synaptics equity awards, subject to certain adjustments thereto in respect of, among other things, performance-based vesting conditions. Our Board of Directors unanimously approved the Merger Agreement and the issuance of our common stock in connection with the Merger.

Pursuant to the Merger Agreement, at the Closing, onsemi will appoint one independent director, designated by onsemi from among those directors serving on the board of directors of Synaptics (“Synaptics Board”) as of immediately prior to the Closing that have been proposed to onsemi by the Synaptics Board for consideration, with such selection to be made after reasonable consultation with, and reasonable consideration of the recommendations of, Synaptics.

The Merger, which is anticipated to close in mid-2027, is subject to the satisfaction or waiver of customary closing conditions, including, but not limited to, adoption of the Merger Agreement by Synaptics’ stockholders, the expiration or early termination of the waiting period under the HSR Act, and other regulatory approvals under certain antitrust and foreign investment regimes, and the absence of any order, injunction or law of such jurisdictions prohibiting the Merger.

The parties’ HSR notifications were filed with the FTC and DOJ on July 17, 2026. The 30-day waiting period following the parties’ filings expires at 11:59 pm, Eastern Time, on August 17, 2026, unless extended by the issuance of a Second Request or earlier terminated by the FTC and DOJ.

The Merger Agreement contains certain termination rights for each of us and Synaptics. In certain circumstances in which the Merger Agreement is terminated, Synaptics may be required to pay us a termination fee of $235.0 million, including if the Merger Agreement is terminated by us due to a change of recommendation by the Synaptics Board, or by Synaptics to enter into a more favorable third-party acquisition proposal, as more fully described in the Merger Agreement. In certain circumstances in which the Merger Agreement is terminated due to the failure to obtain required regulatory approvals, we may be required to pay Synaptics a termination fee of $320.0 million, as more fully described in the Merger Agreement.

For more information on risks related to the Merger, see Part II, Item 1A. "Risk Factors" of this Form 10-Q.

2026 Manufacturing Realignment Program

During the first half of 2026, the Company continued to engage in additional restructuring and cost reduction initiatives under its previously disclosed multi‑year manufacturing realignment program to better align manufacturing capacity and capabilities with anticipated long-term needs.

We expect to incur total severance costs and related benefit expenses of $25.0 million related to the termination of approximately 650 employees. Of this, approximately $2.5 million and $22.7 million was recognized during the quarter and six months ended July 3, 2026, respectively. We also recorded non-cash impairment charges of $16.3 million and $163.3 million during the quarter and six months ended July 3, 2026, respectively, related to previous investments in manufacturing equipment at certain manufacturing facilities pursuant to held-for-sale accounting guidance. Other charges of $22.4 million and $184.5 million for the quarter and six months ended July 3, 2026, related to contract termination costs and other facility exit activities during the quarter ended July 3, 2026 and accelerated depreciation of leasehold improvements and accelerated amortization of ROU assets that were abandoned in connection with the 2025 and 2026 Manufacturing Realignment Programs during the six months ended July 3, 2026. The total of the aforementioned costs was included within Restructuring, Asset Impairments and Other, Net in the Consolidated Statement of Operations. We also recorded $13.4 million of restructuring-related charges for the quarter ended July 3, 2026 within Cost of revenue in the Consolidated Statement of Operations.

For additional information, see Note 5: ''Restructuring, Asset Impairments and Other, Net'' in the notes to our unaudited consolidated financial statements included elsewhere in this Form 10-Q.

Share Repurchases

During the quarter ended July 3, 2026, we repurchased approximately 3.1 million shares of common stock for an aggregate purchase price of $334.7 million. During the six months ended July 3, 2026, we repurchased approximately 8.8 million shares of common stock for an aggregate purchase price of $683.3 million. For additional information, see Note 8: ''Earnings Per Share and Equity'' in the notes to our unaudited consolidated financial statements included elsewhere in this Form 10-Q.

31

Table of Contents

Results of Operations

Quarter Ended July 3, 2026 compared to the Quarter Ended July 4, 2025

The following table summarizes certain information relating to our operating results that has been derived from our unaudited consolidated financial statements (in millions):

32

Table of Contents

The following table summarizes certain information relating to our segment results (in millions):

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

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

You should read the following discussion in conjunction with our audited consolidated financial statements, including the notes thereto, which are included elsewhere in this Form 10-K. Management's Discussion and Analysis of Financial Condition and Results of Operations contains statements that are forward-looking. These statements are based on current expectations and assumptions that are subject to risk, uncertainties, and other factors and speak only as of the filing date. Actual results could differ materially because of the factors discussed in "Risk Factors" and elsewhere in this Form 10-K.

Executive Overview

This executive overview presents summarized information regarding our business and operating trends only. For further details, please read "Management's Discussion and Analysis of Financial Condition and Results of Operations" in its entirety.

onsemi Results

Our revenue for the year ended December 31, 2025 was $5,995.4 million, representing a decrease of 15.3% from $7,082.3 million for the year ended December 31, 2024. During 2025, we reported net income attributable to onsemi of $121.0 million compared to $1,572.8 million in 2024. Our operating income totaled $84.2 million during 2025 compared to $1,767.7 million during 2024. Our gross margin decreased by approximately 1,230 basis points to 33.1% in 2025 from 45.4% in 2024. Our operating results were significantly impacted by restructuring, asset impairment and other charges resulting from our 2025 Manufacturing Realignment Program. See Note 7: ''Restructuring, Asset Impairments and Other, net'' for additional information. We also continued to experience decreased demand in our automotive and industrial end-markets resulting in lower sales volumes and the corresponding underutilization of our manufacturing facilities. See discussion under "Results of Operations" for the reasons for the fluctuations year-over-year.

Business and Macroeconomic Environment

The semiconductor industry has traditionally been highly cyclical, and has often experienced significant downturns in connection with, or in anticipation of, declines in general economic conditions. During 2025, the semiconductor industry continued to experience a softening demand and uncertainty due to macroeconomic factors and the geopolitical environment. In this environment, we have focused on operational excellence and cash flow generation. Given the conditions, we are actively managing and have taken corrective actions in our manufacturing capacity and spending to align with the forecasted demand. We intend to continue these actions during 2026.

We continue to implement cost-saving initiatives to be able to align our overall cost structure, capital investments and other expenditures with our expected revenue, spending and capacity levels to help offset softening demand and increased manufacturing and operating costs. We have taken, and continue to take actions, including but not limited to, exiting product lines that do not enhance gross margin or satisfy strategic objectives. We made meaningful progress in aligning internal manufacturing capacity and resources to external demand.

See Note 7: ''Restructuring, Asset Impairments and Other, net'' in the notes to our audited consolidated financial statements included elsewhere in this Form 10-K for information relating to our most recent cost-saving initiatives.

36

Results of Operations

Comparison of the years ended December 31, 2025 and 2024

A discussion of our results of operations for the year ended December 31, 2025 compared to December 31, 2024 is included below.

Operating Results

The following table summarizes certain information relating to our operating results that has been derived from our audited consolidated financial statements (in millions):

37

The following table summarizes certain information relating to our segment results (in millions):

(1)Gross profit margin as a percent of respective segment revenue balances

Revenue

Revenue was $5,995.4 million and $7,082.3 million for 2025 and 2024, respectively. The decrease from 2024 to 2025 of $1,086.9 million, or 15.3%, was attributable primarily to lower sales volumes across all reportable segments, which are further explained below. We had one customer, a distributor, whose revenue accounted for approximately 11% and 10% of the total revenue for the years ended December 31, 2025 and 2024, respectively, with sales across all reportable segments.

Revenue from PSG

Revenue from PSG decreased by $543.1 million, or approximately 16.2%, during 2025 compared to 2024. This was driven by a decrease in revenue of $438.0 million and $120.2 million in the automotive and industrial end-markets, respectively, which was partially offset by increased revenue of $15.1 million in other end-markets which include AI data centers.

Revenue from AMG

Revenue from AMG decreased by $347.2 million, or approximately 13.3%, during 2025 compared to 2024. This was driven by decreases in revenue of $204.1 million and $161.5 million in the automotive and other end-markets, respectively, which was partially offset by an increase of $18.4 million within the industrial end-market. The decrease in the other end-market primarily related to the reduction of manufacturing services revenue at our EFK location.

Revenue from ISG

Revenue from ISG decreased by $196.6 million, or approximately 17.5%, during 2025 compared to 2024. This was driven by decreases in revenue of $177.9 million and $24.2 million in the automotive and industrial end-markets respectively, which was partially offset by increased revenue of $5.5 million in other end-markets.

38

Revenue by Geographic Location

Revenue by geographic location, based on sales billed from the respective country or region, was as follows (dollars in millions):

(1)Certain of the amounts may not total due to rounding of individual amounts.

Gross Profit and Gross Margin

Gross profit was $1,983.9 million and $3,216.1 million for 2025 and 2024, respectively, representing a decrease of $1,232.2 million or approximately 38.3%. We recorded excess and obsolete inventory charges of $268.2 million, of which $230.3 million related to inventory primarily considered work in progress within the ISG reportable segment, as a result of changes in business strategy due to the 2025 Manufacturing Realignment Program. See Note 7: ''Restructuring, Asset Impairments and Other, net'' for additional information. We also continued to experience a decline in sales volume across end-markets.

Our gross margin decreased by 12.3 percentage points from 45.4% for the year ended December 31, 2024 to 33.1% for the year ended December 31, 2025, primarily due to the impact of the factors explained in the segment gross margin sections below.

PSG gross profit decreased by $696.9 million, primarily driven by the decline in sales volume in the automotive and industrial end-markets. Also contributing to the decrease in gross profit was the $43.9 million write-off of consumables and manufacturing supplies associated with the manufacturing capacity reduction actions taken under the 2025 Manufacturing Realignment Program. PSG gross margin decreased by 16.8 percentage points to 24.5% from 41.3%, primarily as a result of the decline in sales volume, underutilization of our manufacturing facilities, the related impact of unfavorable product mix, and the impact of the consumables and manufacturing supplies write-off discussed above.

AMG gross profit decreased by $149.8 million, primarily driven by the decline in sales volume in the automotive and industrial end-markets. AMG gross margin increased by 1.0 percentage point to 51.1% from 50.1%, primarily due to the reduction in the lower-margin manufacturing services revenue at our EFK location.

ISG gross profit decreased by $385.5 million, primarily driven by the $230.3 million excess and obsolete inventory charges discussed above. The decline in sales volume in the automotive and industrial end-markets also added to the decrease. ISG gross margin decreased 31.6 percentage points to 15.1% from 46.7%, primarily due to the excess and obsolete inventory charges resulting from certain strategy changes in connection with the 2025 Manufacturing Realignment Program.

Operating Expenses

Research and Development

Research and development expenses were $583.6 million and $612.7 million, or approximately 10% and 9% of revenue for 2025 and 2024, respectively, representing a decrease of $29.1 million, or approximately 5% year-over-year. The decrease was primarily due to a decrease in production supplies, outside services and payroll-related expenses as a result of the restructuring program.

[Excerpt truncated for page length; the complete text is on the linked full-MD&A page.]