PRECIGEN, INC. (PGEN) FY 2023 MD&A

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

The following discussion and analysis of financial condition and results of operations is provided to enhance the understanding of, and should be read in conjunction with, Part I, Item 1, "Business" and Item 8, "Financial Statements and Supplementary Data." For information on risks and uncertainties related to our business that may make past performance not indicative of future results, or cause actual results to differ materially from any forward-looking statements, see "Special Note Regarding Forward-Looking Statements," and Part I, Item 1A, "Risk Factors." Refer to Item 7: Management’s Discussion and Analysis of Financial Condition and Results of Operations in our 2022 Annual Report on Form 10-K for management’s discussion and analysis of financial condition and results of operations for the fiscal year 2022 compared to fiscal year 2021.

Financial overview

We have incurred significant losses since our inception. We anticipate that we may continue to incur significant losses for the foreseeable future, and we may never achieve or maintain profitability. Our historical collaboration and licensing revenues were generated under a business model from which we have transitioned, and we do not expect to expend significant resources servicing our historical collaborations in the future. We may enter into strategic transactions for individual platforms or programs in the future from which we may generate new collaboration and licensing revenues. We continue to generate product and service revenues through our Exemplar subsidiary. Products currently in our clinical pipeline will require regulatory approval and/or commercial scale-up before they may commence significant product sales and operating profits.

As we continue our efforts to focus our business and generate additional capital, we may be willing to enter into transactions involving one or more of our operating segments and reporting units for which we have goodwill and intangible assets. These efforts could result in us identifying impairment indicators or recording impairment charges in future periods. In addition, market changes and changes in judgments, assumptions, and estimates that we have made in assessing the fair value of goodwill could cause us to consider some portion or all of certain assets to become impaired.

See further discussion regarding our ability to continue as a going concern below under the Liquidity and capital resources section on Item 7.

Sources of revenue

Although we have generated revenue in the past from collaboration agreements, our primary current revenues arise from Exemplar, which generates product and service revenues through the development and sale of genetically engineered miniature swine models. We recognize revenue when control of the promised product or service is transferred to the customer.

As we have shifted our focus to our healthcare business, we have and may continue to mutually terminate historical collaboration agreements or repurchase rights to the exclusive fields from collaborators, relieving us of any further performance obligations under the agreement. Upon such circumstances or when we determine no further performance obligations are required of us under an agreement, we may recognize any remaining deferred revenue as either collaboration revenue or as a reduction of operating expense, depending on the circumstances. See "Notes to the Consolidated Financial Statements - Note 5" appearing elsewhere in this Annual Report for a discussion of changes to our significant collaborations.

In future periods, in connection with our focus on healthcare, our revenues will primarily depend on our ability to advance and create our own programs and the extent to which we bring products enabled by our technologies to market. Other than for collaboration revenues recognized upon cancellation or modification of an existing collaboration or for revenues generated pursuant to future strategic transactions for any of our existing platforms or programs, we expect our collaboration revenues will continue to be minimal or zero in the near term, although if any new collaboration agreements or strategic transactions are entered into, revenue could be positively impacted . Our revenues will also depend upon our ability to maintain or improve the volume and pricing of Exemplar's current product and service offerings and to develop and scale up production of new

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offerings from the various technologies of our subsidiaries. As we focus on our healthcare business, we anticipate that our expenses will increase substantially if, and as, we continue to advance the preclinical and clinical development of our existing product candidates and our research programs. We expect some period of time, and in most cases a significant period of time, could pass before commercialization of our various product candidates or before the achievement of contractual milestones and the realization of royalties on product candidates commercialized under our collaborations. Accordingly, there can be no assurance as to the timing, magnitude, and predictability of revenues, if any, to which we might be entitled.

Cost of products and services

Cost of products and services, all which are related to our Exemplar reporting segment, includes primarily labor and related costs, drugs and supplies, feed used in production, and facility charges, including rent and depreciation. Fluctuations in the price of livestock and feed have not had a significant impact on our operating margins and no derivative financial instruments are used to mitigate the price risk.

Research and development expenses

We recognize research and development expenses as they are incurred. Our research and development expenses consist primarily of:

•salaries and benefits, including stock-based compensation expense, for personnel in research and development functions;

•fees paid to consultants and contract research organizations who perform research on our behalf and under our direction;

•costs related to laboratory supplies used in our research and development efforts and acquiring, developing, and manufacturing preclinical study and clinical trial materials;

•costs related to certain in-licensed technology rights or reacquired in-process research and development;

•amortization of patents and related technologies acquired in mergers and acquisitions; and

•facility-related expenses, which include direct depreciation costs and unallocated expenses for rent and maintenance of facilities and other operating costs.

Our research and development expenses are generally incurred by our two reportable segments and primarily relate to either costs incurred to expand or otherwise improve our technologies or the costs incurred to develop our own products and services. Our Biopharmaceuticals segment is progressing preclinical and clinical programs that target urgent and intractable diseases in our core therapeutics areas of immuno-oncology, autoimmune disorders and infectious diseases, including PRGN-2012, PRGN-2009, PRGN-3005, PRGN-3006, PRGN-3007, and AG019. Our Exemplar Segment’s research and development activities relate to new and improved pig research models. The following table summarizes our research and development expenses on the consolidated statements of operations for the years ended December 31, 2023, 2022, and 2021 incurred by reportable segment.

The amount of research and development expenses may be impacted by, among other things, the number and nature of our own proprietary programs, and the number and size of programs we may support on behalf of collaboration agreements. We expect that our research and development expenses will increase as we continue to develop our own proprietary programs, including

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progression of these programs into preclinical and clinical stages. We believe these increases will likely include increased costs paid to consultants and contract research organizations, and increased costs related to laboratory supplies.

Research and development expenses may also increase as a result of in-licensing of technologies or ongoing research and development operations that we might assume through mergers and acquisitions.

Selling, general and administrative expenses

Selling, general and administrative, or SG&A, expenses consist primarily of salaries and related costs, including stock-based compensation expense, for employees in executive, operational (including commercialization), finance, information technology, legal, and corporate communications functions. Other significant SG&A expenses include rent and utilities, insurance, accounting, and legal services (including the cost of settling any claims and lawsuits), and expenses associated with obtaining and maintaining our intellectual property.

SG&A expenses may fluctuate in the future depending on the scaling of our corporate functions required to support our corporate initiatives, the build-up of our commercialization efforts and the outcomes of legal claims and assessments against us.

Other income (expense), net

Other income consists of gain on convertible debt retirement and interest earned on our cash and cash equivalents and short-term and long-term investments, and may fluctuate based on amounts invested and current interest rates.

Other expense consists primarily of interest on our Convertible Notes, which decreased in 2023 due to retirement of our Convertibles Notes. See "Notes to the Condensed Consolidated Financial Statements - Note 10" appearing elsewhere in this Annual Report for further discussion.

Equity in net income (loss) of affiliates

Equity in net income or loss of affiliates is our pro-rata share of our equity method investments' operating results, adjusted for accretion of basis difference. We account for investments in our JVs using the equity method of accounting since we have the ability to exercise significant influence, but not control, over the operating activities of these entities.

Segment performance

We use Segment Adjusted EBITDA as our primary measure of segment performance. We define Segment Adjusted EBITDA as net income (loss) before (i) interest expense and interest income, (ii) income tax expense or benefit, (iii) depreciation and amortization, (iv) stock-based compensation expense, (v) loss on settlement agreements where noncash consideration is paid, (vi) adjustments for accrued bonuses paid in equity awards, (vii) gain or loss on disposals of assets, (viii) loss on impairment of goodwill and other noncurrent assets, (ix) equity in net loss of affiliates, and (x) recognition of previously deferred revenue associated with upfront and milestone payments as well as cash outflows from capital expenditures and investments in affiliates, but includes proceeds from the sale of assets in the period sold. See "Notes to the Consolidated Financial Statements - Note 16" appearing elsewhere in this Annual Report for further discussion of Segment Adjusted EBITDA.

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Results of operations

Comparison of the year ended December 31, 2023 to the year ended December 31, 2022

The following table summarizes our results of operations for the years ended December 31, 2023 and 2022, together with the changes in those items in dollars and as a percentage:

1.See "Notes to the Consolidated Financial Statements - Note 3" appearing elsewhere in this Annual Report.

Collaboration and licensing revenues

The following table shows the collaboration and licensing revenue recognized for the years ended December 31, 2023 and 2022, together with the changes in those items.

Collaboration and licensing revenues decreased $14.6 million, or 99.5%, compared to the year ended December 31, 2022, primarily due to the fact we obtained control of Intrexon Energy Partners and Intrexon Energy Partners II in 2022. In obtaining control, we recognized the remaining balance of deferred revenue associated with Intrexon Energy Partners and Intrexon

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Energy Partners II, less the amounts paid to acquire the membership interests of the investors. See "Notes to the Consolidated Financial Statements - Note 5" appearing elsewhere in this Annual Report for further discussion of Intrexon Energy Partners and Intrexon Energy Partners II.

Product and services revenues, and gross margin

Product and service revenues decreased $5.9 million or 48.8%, compared to the year ended December 31, 2022. This decrease is related to reductions in services performed at Exemplar. Gross margin on product and services declined in the current period primarily as a result of the decreased revenues.

Research and development expenses

Research and development expenses increased $1.4 million, or 3.1%, compared to the year ended December 31, 2022. Salaries, benefits, and other personnel costs increased $2.8 million due to an increase in the hiring of employees to support the growth in the Company's development activities, and to a lesser extent, increases in salaries of our continuing employees. These increases were offset by less expenses incurred related to preclinical research programs for the comparable period.

Selling, general and administrative expenses

SG&A expenses decreased $7.6 million, or 15.8%, compared to the year ended December 31, 2022. This decrease was primarily driven by a reduction in professional fees of $6.5 million, due to decreased legal fees associated with certain litigation matters, and $0.7 million decreased insurance related premiums.

Impairment of goodwill

We recorded an impairment loss for the year ended December 31, 2023 of $10.4 million resulting from our annual test for goodwill in our Exemplar segment on December 31, 2023. See "Notes to the Consolidated Financial Statements - Note 9" appearing elsewhere in this Annual Report for further discussion of Exemplar goodwill impairment.

Total other income (expense), net

Total other income (expense), net, went from a net expense of $(5.1) million in 2022 to $3.4 million income, net in 2023, or a change of $8.5 million, or 167% between the year ended December 31, 2022 to the year ended December 31, 2023. This is primarily due to $6.3 million in reduced interest expense associated with the Convertible Notes as they were fully retired in the second quarter of 2023, and $3.1 million increased interest income due to higher interest rates on investments. This increase was partially offset by a $0.9 million decrease in gain recorded on the early retirement of a portion of our Convertible Notes in the year ended December 31, 2023 compared to the year ended December 31, 2022.

Segment performance

The following table summarizes Segment Adjusted EBITDA, which is our primary measure of segment performance, for the years ended December 31, 2023 and 2022, for each of our reportable segments.

For a reconciliation of Segment Adjusted EBITDA to net loss from continuing operations before income taxes, see "Notes to the Consolidated Financial Statements - Note 16" appearing elsewhere in this Annual Report.

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The following table summarizes revenues from external customers for the years ended December 31, 2023 and 2022, for each of our reportable segments.

Biopharmaceuticals

The decrease in revenues for Biopharmaceuticals was primarily due to the fact that we obtained control of Intrexon Energy Partners and Intrexon Energy Partners II in the third quarter of 2022. In obtaining control, we recognized the remaining balance of deferred revenue associated with Intrexon Energy Partners and Intrexon Energy Partners II, less the amounts paid to acquire the membership interests of the investors. See "Notes to the Consolidated Financial Statements - Note 5 " appearing elsewhere in this Annual Report for further detail. Segment Adjusted EBITDA loss decreased primarily as a result of a reduction of Selling, general and administrative expenses.

Exemplar

Revenues for Exemplar decreased due to a decrease in services performed resulting from a lower demand from existing customers. The decline in Segment Adjusted EBITDA was primarily due to the decreased revenues.

Liquidity and capital resources

Sources of liquidity

We have incurred losses from operations since our inception, and as of December 31, 2023, we had an accumulated deficit of $2.0 billion. From our inception through December 31, 2023, we have funded our operations principally with proceeds received from private and public equity and debt offerings, cash received from our collaborators, and through product and service sales made directly to customers, and sales of non-core businesses. As of December 31, 2023, we had cash and cash equivalents of $7.6 million and short-term and long-term investments of $55.3 million. Cash in excess of immediate requirements is typically invested primarily in money market funds, and United States government debt securities in order to maintain liquidity and preserve capital.

In January 2023, we closed a public offering of 43,962,640 shares of our common stock, resulting in net proceeds to us of $72.8 million, after deducting underwriting discounts, fees, and other offering expenses.

Cash Flows

The following table sets forth the significant sources and uses of cash for the periods set forth below:

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Cash flows from operating activities:

In 2023, our net loss was $95.9 million, which includes the following significant noncash expenses: (i) $9.9 million of stock-based compensation expense, (ii) $10.8 million impairment losses, (iii) $6.7 million of depreciation and amortization expense, offset by (iv) $1.8 million due to amortization of discounts on investments. In addition, changes in operating assets and liabilities increased cash from operating activities by $3.4 million.

In 2022, our net income was $28.3 million, which included a gain on sale of discontinued operations of $94.7 million which is presented as an adjustment to net income to net cash used in operating activities. Additional adjustments to reconcile net income to net cash used in operating activities netted to approximately $24.0 million, from both continuing and discontinued operations, with the most significant adjustments including: (i) $10.2 million of stock-based compensation expense, (ii) $10.8 million of depreciation and amortization expense, and (iii) $1.0 million accretion of debt discount and amortization of deferred financing costs. In addition, changes in operating assets and liabilities reduced net income by $22.7 million, which the most significant change being a reduction in deferred revenue of $23.4 million.

In 2021, our net loss was $92.2 million, which includes the following significant noncash expenses totaling $39.4 million from both continuing and discontinued operations: (i) $13.9 million of stock-based compensation expense, (ii) $13.8 million of depreciation and amortization expense, and (iii) $11.7 million accretion of debt discount and amortization of deferred financing costs. These expenses were partially offset by a $4.6 million noncash gain recognized upon the termination of our MBP Titan facility lease in January 2021.

Our 2023 cash used in operations increased by $1.9 million from the year ended December 31, 2022, primarily due to decreased cash flow from operations provided by Trans Ova (which was sold in August 2022) and a decrease in cash flow from operations at Exemplar partially offset by a reduction in selling, general and administrative expenses, a decrease in interest paid in 2023 compared to 2022 due to the retirement in 2023 of our Convertible Notes, and cash paid to acquire Intrexon Energy Partners and Intrexon Energy Partners II membership interest, which was recorded as a reduction in revenue in 2022 that did not occur in 2023.

Our 2022 cash outflows used in operations increased $9.3 million from the year ended December 31, 2021 primarily due to decreased cash flow from operations provided by Trans Ova (which was sold in August 2022) and Exemplar.

Cash flows from investing activities:

During 2023, we purchased $185.0 million of investments, using both the proceeds received from the underwritten public offering discussed below under cash flows from financing activities as well as reinvesting a portion of the proceeds received from the $183.4 million sales and maturities of investments. We also purchased $1.5 million of property plant and equipment.

During 2022, we received $68.4 million proceeds during the year from the maturities and sales of investments and $162.3 million from the sale of Trans Ova.

During 2021, we purchased $174.2 million of investments, primarily using the $121.0 million of proceeds received from the underwritten public offering discussed below. We also reinvested a portion of the $100.2 million proceeds we received during the year from the maturities and sales of investments.

Cash flows from financing activities:

During 2023, we received $72.8 million of proceeds from the sale of our common stock in an underwritten public offering and retired $43.2 million of our Convertible Notes using restricted cash.

During 2022, we repurchased Convertible Notes for $155.3 million using restricted cash.

During 2021, we received $121.0 million proceeds from the sale of our common stock in an underwritten public offering.

Future capital requirements

Our future capital requirements will depend on many factors, including:

•progress in our research and development programs, as well as the magnitude and speed of development of these programs;

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•capital expenditures to building out our manufacturing capabilities and preparing for commercial readiness;

•the timing of regulatory approval of our product candidates and those of our collaborations;

•the timing, receipt, and amount of any payments received in connection with strategic transactions;

•the timing, receipt, and amount of upfront, milestone, and other payments, if any, from present and future collaborators, if any;

•the timing, receipt, and amount of sales and royalties, if any, from our product candidates;

•the timing and capital requirements to scale up our various product candidates and service offerings and customer acceptance thereof;

•our ability to maintain and establish additional collaborative arrangements and/or new strategic initiatives;

•the resources, time, and cost required for the preparation, filing, prosecution, maintenance, and enforcement of our intellectual property portfolio;

•strategic mergers and acquisitions, if any, including both the upfront acquisition cost as well as the cost to integrate, maintain, and expand the strategic target; and

•the costs associated with legal activities, including litigation, arising in the course of our business activities and our ability to prevail in any such legal disputes.

Until such time, if ever, as we can regularly generate positive operating cash flows, we plan to finance our cash needs through a combination of equity offerings, debt financings, government, or other third-party funding, strategic alliances, sales of assets, and licensing arrangements. We may not be able to raise sufficient additional funds on terms that are favorable to us, if at all. To the extent that we raise additional capital through the sale of equity or convertible debt securities, the ownership interests of our common shareholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our common shareholders. Our current stock price may make it more difficult to pursue equity financings and lead to substantial dilution if the price of our common stock does not increase. Debt financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures, or declaring dividends. If we raise additional funds through strategic transactions, collaborations, or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs, or product candidates, or to grant licenses on terms that may not be favorable to us.

We are subject to a number of risks similar to those of other companies conducting high-risk, early-stage research and development of product candidates. Principal among these risks are dependence on key individuals and intellectual property, competition from other products and companies, and the technical risks associated with the successful research, development, and clinical manufacturing of its product candidates. Our success is dependent upon our ability to continue to raise additional capital in order to fund ongoing research and development, obtain regulatory approval of our products, successfully commercialize our products, generate revenue, meet our obligations, and, ultimately, attain profitable operations.

Our consolidated financial statements as of and for the year ended December 31, 2023 have been prepared on the basis that we will continue as a going concern, which contemplates the realization of assets and satisfaction of liabilities in the normal course of business. Based on our balance of cash, cash equivalents and short-term investments of $62.9 million at December 31, 2023 and forecasted negative cash flows from operating activities for the foreseeable future, there is substantial doubt about our ability to continue as a going concern within one year after the date that these financial statements are issued.

Our ability to continue as a going concern is dependent upon the successful execution of our management’s plans, which include raising additional capital in the near term. This additional capital could be raised through a combination of non-dilutive financings (including debt financings, collaborations, strategic alliances, monetization of non-core assets, marketing, distribution or licensing arrangements), dilutive financings (including equity and/or debt financings with an equity component) and, in the longer term, from revenue related to product sales, to the extent its product candidates receive marketing approval and can be commercialized. There can be no assurance that new financings or other transactions will be available to us on commercially acceptable terms, or at all, and such financings may adversely affect the holdings or rights of our stockholders and may cause significant dilution to existing stockholders. The consolidated financial statements do not include any

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adjustments that might result from the outcome of this uncertainty, which could have a material adverse effect on our financial condition.

Contractual obligations and commitments

The following table summarizes our significant contractual obligations and commitments from continuing operations as of December 31, 2023 and the effects such obligations are expected to have on our liquidity and cash flows in future periods:

In addition to the obligations in the table above, as of December 31, 2023 we are party to in-licensed research and development agreements with various academic and commercial institutions where we could be required to make future payments for annual maintenance fees as well as for milestones and royalties we might receive upon commercial sales of products that incorporate their technologies. These agreements are generally subject to termination by us and therefore no amounts are included in the tables above. As of December 31, 2023, we also had research and development commitments with third parties totaling $17.8 million that had not yet been incurred.

Net operating losses

As of December 31, 2023, we had net operating loss carryforwards of approximately $891.6 million for United States federal income tax purposes available to offset future taxable income, including $675.0 million generated after 2017, United States capital loss carryforwards of $212.5 million, and United States federal and state research and development tax credits of approximately $13.5 million, prior to consideration of annual limitations that may be imposed under Section 382. Net operating loss carryforwards generated prior to 2018 begin to expire in 2023, and capital loss carryforwards will expire if unutilized beginning in 2024. Our foreign subsidiaries included in continuing operations have foreign loss carryforwards of approximately $73.8 million, most of which do not expire. Excluding certain deferred tax liabilities totaling $1.8 million, our remaining net deferred tax assets, which primarily relate to these loss carryforwards, are offset by a valuation allowance due to our history of net losses.

As a result of our past issuances of our common stock, as well as due to prior mergers and acquisitions, certain of our net operating losses have been subject to limitations pursuant to Section 382. As of December 31, 2023, Precigen has utilized all net operating losses subject to Section 382 limitations, other than those losses inherited via acquisitions. As of December 31, 2023, approximately $39.7 million of domestic net operating losses were inherited via acquisitions and are limited based on the value of the target at the time of the transaction. Future changes in stock ownership may also trigger an ownership change and, consequently, a Section 382 limitation.

Critical accounting estimates

Our management's discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements, which we have prepared in accordance with U.S. GAAP. The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported revenues and expenses during the reporting periods. We evaluate these estimates and judgments on an ongoing basis. We base our estimates on historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Our actual results may differ from these estimates under different assumptions or conditions.

While our significant accounting policies are more fully described in "Notes to the Consolidated Financial Statements - Note 2" appearing elsewhere in this Annual Report, we believe that the following accounting policies are the most critical for fully understanding and evaluating our financial condition and results of operations.

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Revenue recognition

We recognize revenue when our customer obtains control of the promised goods or services, in an amount that reflects the consideration that we expect to receive in exchange for those goods or services. To determine revenue recognition for arrangements that are within the scope of ASC 606, we perform the following five steps: (i) identify the contract(s) with a customer, (ii) identify the promises and distinct performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations in the contract, and (v) recognize revenue when (or as) we satisfy the performance obligations. In 2022 and 2021, collaboration and licensing revenues was considered a critical accounting policy and estimate since the associated revenue or deferred revenue were significant. Refer to Item 7: Management’s Discussion and Analysis of Financial Condition and Results of Operations in our 2022 Annual Report on Form 10-K for management’s discussion of this critical accounting policy and estimate. In 2023, such accounting policy and estimate is not considered critical as the associated revenue and deferred revenue are not significant.

Product and service revenues

Our product and service revenues are generated primarily through Exemplar, it generates product and service revenues through the development and sale of genetically engineered miniature swine models. We evaluate each promised product or service under our contracts and identify performance obligations for each distinct product or services. We then allocate the transaction price of the contract to each performance obligation, recognizing the transaction price as revenue at a point in time when control of the promised product is transferred to the customer or over time when the promised service is rendered. We typically recognize revenue using an out-based measure, generally time elapsed or days of service, to measure progress and transfer of the control of the performance obligation to the customer. Payment terms are typically due within 30 days of invoicing, which occurs prior to or when revenue is recognized. We recognized $6.1 million, $12.0 million, and $13.3 million of product and service revenues for the years ended December 31, 2023, 2022, and 2021, respectively.

Valuation of goodwill and long-lived assets

We evaluate long-lived assets to be held and used, which include property, plant and equipment and intangible assets subject to amortization, for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Conditions that would necessitate an impairment assessment include a significant decline in the observable market value of an asset, a significant change in the extent or manner an asset is used, or a significant adverse change that would indicate that the carrying amount of an asset or group of assets is not recoverable.

Goodwill is tested for impairment annually at December 31, or more frequently if events or circumstances between annual tests indicate that the assets may be impaired. We perform a qualitative assessment to determine whether it is more-likely-than-not that the fair value of a reporting unit is less than its carrying amount prior to performing the quantitative goodwill impairment test. If this is the case, the quantitative goodwill impairment test is required. If the quantitative goodwill impairment test is required or elected to be performed, first, the fair value of the reporting unit is compared with its carrying amount (including goodwill). Impairment losses on goodwill are recognized based solely on a comparison of their fair value to carrying value, without consideration of any recoverability test.

When we perform quantitative evaluations, the fair value of the reporting units are primarily determined based on the income approach. The income approach is a valuation technique in which fair value is based on forecasted future cash flows, discounted at the appropriate rate of return commensurate with the risk as well as current rates of return for equity and debt capital as of the valuation date. The forecast used in our estimation of fair value was developed by management based on historical operating results, incorporating adjustments to reflect management's planned changes in operations and market considerations.

During the years ended December 31, 2023 and 2022, we recorded $10.8 million and $1.1 million, respectively, of impairment charges from continuing operations to write down the values of goodwill and other long-lived assets. See additional discussion regarding these impairments in "Notes to the Consolidated Financial Statements - Note 8 and 9" appearing elsewhere in this Annual Report.

Research and Development Expense, Including Clinical Trial Accruals/Expenses

We consider that regulatory requirements inherent in the research and development of new products preclude us from capitalizing such costs. Research and development costs consist of salaries and related costs of research and development personnel, including stock-based compensation expense, costs to acquire technology rights, contract research organizations and

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consultants, facilities, materials and supplies associated with research and development projects as well as various laboratory studies.

Clinical trial expenses are a significant component of research and development expense, and we outsource a significant portion of these costs to third parties. Third party clinical trial expenses include investigator fees, site and patient costs, CRO costs, costs for central laboratory testing, and data management costs. The accrual for site and patient costs includes inputs such as estimates of patient enrollment, patient cycles incurred, clinical site activations, and other pass-through costs. These inputs are required to be estimated due to a lag in receiving the actual clinical information from third parties. Payments for these activities are based on the terms of the individual arrangements, which may differ from the pattern of costs incurred, and are reflected on the consolidated balance sheets as a prepaid expenses and other or other accrued liabilities . These third party agreements are generally cancellable, and related costs are recorded as research and development expense as incurred. Non-refundable advance clinical payments for goods or services that will be used or rendered for future research and development activities are recorded as a prepaid asset and recognized as expense as the related goods are delivered or the related services are performed. When evaluating the adequacy of the accrued expenses, we analyze progress of the studies, including the phase or completion of events, invoices received and contracted costs. Significant judgments and estimates may be made in determining the accrued balances at the end of any reporting period. Actual results could differ from the estimates made. The historical clinical accrual estimates have not been materially different from the actual costs.

Recent accounting pronouncements

See "Notes to the Consolidated Financial Statements - Note 2" appearing elsewhere in this Annual Report for a description of recent accounting pronouncements applicable to our business, which is incorporated herein by reference.