Gilead Sciences 10-Q 2024-03-31

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

For the quarterly period ended March 31, 2024

or

For the transition period from ________ to ________

Commission File No. 0-19731

GILEAD SCIENCES, INC.

(Exact Name of Registrant as Specified in Its Charter)

333 Lakeside Drive, Foster City, California 94404

(Address of principal executive offices) (Zip Code)

650-574-3000

(Registrant’s Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No ¨

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes x No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer x Accelerated filer ¨ Non-accelerated filer ¨

Smaller reporting company ☐ Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ☐ No x

Number of shares outstanding of the issuer’s common stock, par value $0.001 per share, as of April 30, 2024: 1,245,853,209

GILEAD SCIENCES, INC.

INDEX

We own or have rights to various trademarks, copyrights and trade names used in our business, including the following: GILEAD®, GILEAD SCIENCES®, KITE™, AMBISOME®, ATRIPLA®, BIKTARVY®, CAYSTON®, COMPLERA®, DESCOVY®, DESCOVY FOR PREP®, EMTRIVA®, EPCLUSA®, EVIPLERA®, GENVOYA®, HARVONI®, HEPCLUDEX®, HEPSERA®, JYSELECA®, LETAIRIS®, ODEFSEY®, SOVALDI®, STRIBILD®, SUNLENCA®, TECARTUS®, TRODELVY®, TRUVADA®, TRUVADA FOR PREP®, TYBOST®, VEKLURY®, VEMLIDY®, VIREAD®, VOSEVI®, YESCARTA® and ZYDELIG®. Other trademarks and trade names are the property of their respective owners.

Certain amounts and percentages in this Quarterly Report on Form 10-Q may not sum or recalculate due to rounding.

This Quarterly Report on Form 10-Q, including Part I, Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations and Part II, Item 1A. Risk Factors, contains forward-looking statements regarding future events and our future results that are subject to the safe harbors created under the Securities Act of 1933, as amended, and the Securities Exchange Act of 1934, as amended. Words such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “forecast,” “goal,” “hope,” “intend,” “may,” “might,” “plan,” “project,” “seek,” “should,” “target” and variations of such words and similar expressions are intended to identify such forward-looking statements. In addition, any statements other than statements of historical fact are forward-looking statements, including statements regarding overall trends; operating cost and revenue trends; liquidity and capital needs; plans and expectations with respect to products, product candidates, corporate strategy, business and operations, financial projections and the use of capital; collaboration and licensing arrangements; patent protection and estimated loss of exclusivity for our products and product candidates*;* ongoing litigation and investigation matters; and other statements of expectations, beliefs, future plans and strategies, anticipated events or trends and similar expressions.

We have based these forward-looking statements on our current expectations about future events. These statements are not guarantees of future performance and involve risks, uncertainties and assumptions that are difficult to predict. Our actual results may differ materially from those suggested by these forward-looking statements for various reasons, including those identified in Part II, Item 1A. Risk Factors of this Quarterly Report on Form 10-Q. Given these risks and uncertainties, you are cautioned not to place undue reliance on forward-looking statements. The forward-looking statements included in this report are made only as of the date hereof unless otherwise specified. Except as required under federal securities laws and the rules and regulations of U.S. Securities and Exchange Commission, we do not undertake, and specifically decline, any obligation to update any of these statements or to publicly announce the results of any revisions to any forward-looking statements after the distribution of this report, whether as a result of new information, future events, changes in assumptions or otherwise. In evaluating our business, you should carefully consider the risks described in Part II, Item 1A. Risk Factors of this Quarterly Report on Form 10-Q. Any of the risks contained herein could materially and adversely affect our business, results of operations and financial condition.

PART I. FINANCIAL INFORMATION

GILEAD SCIENCES, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(unaudited)

See accompanying notes.

GILEAD SCIENCES, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited)

See accompanying notes.

GILEAD SCIENCES, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME

(unaudited)

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The following discussion and analysis is intended to provide material information around events and uncertainties known to management that are relevant to an assessment of the financial condition and results of operations of Gilead and should therefore be read in conjunction with our audited Consolidated Financial Statements and the related notes thereto and other disclosures included as part of our Annual Report on Form 10-K for the year ended December 31, 2023 and our unaudited Condensed Consolidated Financial Statements for the three months ended March 31, 2024 and the related notes thereto and other disclosures (including the disclosures under Part II, Item 1A. Risk Factors) included in this Quarterly Report on Form 10-Q.

Management Overview

Gilead Sciences, Inc. (including its consolidated subsidiaries, referred to as “Gilead,” the “company,” “we,” “our” or “us”) is a biopharmaceutical company that has pursued and achieved breakthroughs in medicine for more than three decades, with the goal of creating a healthier world for all people. We are committed to advancing innovative medicines to prevent and treat life-threatening diseases, including HIV, viral hepatitis, coronavirus disease 2019 (“COVID-19”) and cancer. We operate in more than 35 countries worldwide, with headquarters in Foster City, California.

Key Business Updates

The following updates are based on select press releases issued since the filing of our Annual Report on Form 10-K for the year ended December 31, 2023. Readers are encouraged to review all press releases available on our website at www.gilead.com. The content on the referenced website does not constitute a part of and is not incorporated by reference into this Quarterly Report on Form 10-Q.

Virology

• Received approval from the U.S. Food and Drug Administration (“FDA”) to update Biktarvy’s label with additional data reinforcing the safety and efficacy profile to treat pregnant people with HIV-1 with suppressed viral loads.

• Received approval from FDA to expand Biktarvy’s label to include treatment of people with HIV who have suppressed viral loads with known or suspected M184V/I resistance.

• Received approval from FDA to expand the indication for Vemlidy to include treatment of chronic hepatitis B virus (“HBV”) in children six years and older who weigh at least 25 kg with compensated liver disease.

Oncology

• Announced a research collaboration, option and license agreement with Merus N.V. to discover novel antibody-based trispecific T-cell engagers in oncology.

• Entered into an exclusive license agreement with Xilio Therapeutics, Inc. (“Xilio”) to develop and commercialize Xilio’s tumor-activated IL-12 program, including investigational candidate XTX301 in advanced solid tumors.

Inflammation

• Completed the acquisition of CymaBay Therapeutics, Inc. (“CymaBay”), for $4.3 billion in total equity value, or $3.9 billion net cash paid, adding investigational candidate seladelpar for the treatment of primary biliary cholangitis to Gilead’s Liver Disease portfolio. Seladelpar is an investigational, oral, selective peroxisome proliferator-activated receptor delta (PPARδ) agonist with Orphan Drug Designation in the United States and Europe. PPARδ has been shown to regulate critical metabolic and liver disease pathways. FDA accepted the New Drug Application for seladelpar in February 2024 for priority review, with a Prescription Drug User Fee Act target action date of August 14, 2024.

Key Financial Results

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Total revenues increased 5% to $6.7 billion for the three months ended March 31, 2024, compared to the same period in 2023, primarily due to higher HIV, Oncology and Liver Disease sales.

Net loss attributable to Gilead was $4.2 billion and diluted loss per share attributable to Gilead was $3.34 for the three months ended March 31, 2024, compared to net income attributable to Gilead of $1.0 billion and diluted earnings per share attributable to Gilead of $0.80 for the same period in 2023. The decrease was primarily driven by an acquired in-process research and development (“IPR&D”) charge of $3.9 billion related to the acquisition of CymaBay, as well as a pre-tax IPR&D partial impairment charge of $2.4 billion related to assets acquired by Gilead from Immunomedics, Inc. (“Immunomedics”) in 2020.

Results of Operations

Revenues

The following table summarizes the period-over-period changes in our Total revenues:

(1) Represents our revenue from cobicistat (“C”), emtricitabine (“FTC”) and tenofovir alafenamide (“TAF”) in Symtuza (darunavir/C/FTC/TAF), a fixed dose combination product commercialized by Janssen Sciences Ireland Unlimited Company (“Janssen”).

(2) Includes Atripla, Complera/Eviplera, Emtriva, Sunlenca, Stribild, Truvada and Tybost.

(3) Includes Epclusa and the authorized generic version of Epclusa sold by Gilead’s separate subsidiary, Asegua Therapeutics LLC (“Asegua”).

(4) Includes ledipasvir/sofosbuvir (Harvoni and the authorized generic version of Harvoni sold by Asegua), Hepcludex, Hepsera, Sovaldi, Viread and Vosevi.

(5) Includes Cayston, Jyseleca, Letairis, Ranexa and Zydelig.

HIV

HIV product sales increased 4% to $4.3 billion for the three months ended March 31, 2024, compared to the same period in 2023, primarily driven by higher demand. In particular, Biktarvy sales increased primarily reflecting higher demand, including patients switching from Genvoya and other Gilead HIV products. Descovy sales decreased primarily driven by lower average realized price due to channel mix, partially offset by higher demand.

Liver Disease

Liver Disease product sales increased 9% to $737 million for the three months ended March 31, 2024, compared to the same period in 2023, primarily driven by favorable inventory dynamics, the timing of chronic hepatitis C virus (“HCV”) product purchases by the Department of Corrections in the United States, as well as higher demand across HBV, HCV, and in the European Union (“EU”), chronic hepatitis D virus (“HDV”) products.

Veklury

Veklury product sales decreased 3% to $555 million for the three months ended March 31, 2024, compared to the same period in 2023, primarily driven by lower rates of COVID-19 related hospitalizations.

Oncology

Cell Therapy

Cell Therapy product sales increased 7% to $480 million for the three months ended March 31, 2024, compared to the same period in 2023, primarily due to increased Yescarta demand for the treatment of relapsed or refractory (“R/R”) large B-cell lymphoma outside the United States and increased Tecartus demand for the treatment of R/R adult acute lymphoblastic leukemia and R/R mantle cell lymphoma, mostly in Europe.

Trodelvy

Trodelvy product sales increased 39% to $309 million for the three months ended March 31, 2024, compared to the same period in 2023, primarily due to higher demand.

Other

Other product sales increased 13% to $224 million for the three months ended March 31, 2024, compared to the same period in 2023, primarily due to higher demand for AmBisome.

Foreign Currency Exchange Impact

We generally face exposure to movements in foreign currency exchange rates, primarily in the Euro. We use foreign currency exchange contracts to hedge a portion of our foreign currency exposures.

Approximately 28% of our product sales were denominated in foreign currencies during the three months ended March 31, 2024 and 2023. Foreign currency exchange, net of hedges, had an unfavorable impact on our total product sales of $47 million for the three months ended March 31, 2024, based on a comparison using foreign currency exchange rates from the three months ended March 31, 2023.

Costs and Expenses

The following table summarizes the period-over-period changes in our costs and expenses:

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Product Gross Margin

Product gross margin decreased to 76.6% for the three months ended March 31, 2024, compared to the same period in 2023, primarily driven by product mix, as well as higher intangible asset amortization expenses related to the pretreated hormone receptor-positive, human epidermal growth factor receptor 2-negative (“HR+/HER2-”) metastatic breast cancer indication for Trodelvy following its approval in February 2023.

Research and Development Expenses

Research and development (“R&D”) expenses consist primarily of personnel costs including salaries, benefits and stock-based compensation expense, infrastructure, materials and supplies and other support costs, research and clinical studies performed by contract research organizations and our collaboration partners and other outside services.

We manage our R&D expenses by identifying the R&D activities we expect to be performed during a given period and then prioritizing efforts based on scientific data, probability of successful technical development and regulatory approval, market potential, available human and capital resources and other considerations. We regularly review our R&D activities based on unmet medical need and, as necessary, reallocate resources among our internal R&D portfolio and external opportunities that we believe will best support the long-term growth of our business. We do not track total R&D expenses by product candidate, therapeutic area or development phase.

The following table provides a breakout of expenses by major cost type:

Research and development expenses increased 5% to $1.5 billion for the three months ended March 31, 2024, compared to the same period in 2023. Personnel, infrastructure and other support costs increased primarily due to stock-based compensation expenses related to the acquisition of CymaBay and restructuring expenses. Clinical studies and other costs decreased primarily due to higher R&D reimbursements and the discontinuation or ramp-down of magrolimab and other studies.

Acquired In-Process Research and Development Expenses

Acquired in-process research and development expenses are recorded when incurred and reflect costs of externally-developed IPR&D projects, acquired directly in a transaction other than a business combination, that do not have an alternative future use, including upfront and milestone payments related to various collaborations and the costs of rights to IPR&D projects.

Acquired in-process research and development expenses were $4.1 billion for the three months ended March 31, 2024, primarily comprised of $3.9 billion related to the CymaBay acquisition and $100 million related to the Arcus Biosciences, Inc. collaboration. Acquired in-process research and development expenses were $481 million for the three months ended March 31, 2023, primarily comprised of $244 million related to the Tmunity Therapeutics, Inc. acquisition and $212 million related to the Arcellx, Inc. collaboration. See Note 6. Acquisitions, Collaborations and Other Arrangements of the Notes to Condensed Consolidated Financial Statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q for additional information.

In-Process Research and Development Impairment

As of December 31, 2023, approximately $5.9 billion was assigned to an indefinite-lived IPR&D intangible asset related to Trodelvy for metastatic non-small cell lung cancer (“NSCLC”). In addition to NSCLC, Trodelvy is being explored for potential investigational use in a range of tumor types where Trop-2 is highly expressed. Gilead’s clinical development program in metastatic NSCLC includes ongoing Phase 2 and registrational Phase 3 studies for Trodelvy as a first- or second-line indication.

In January 2024, we received data from our Phase 3 EVOKE-01 study of Trodelvy evaluating sacituzumab govitecan-hziy (“SG”) indicating that the study did not meet its primary endpoint of overall survival in previously treated metastatic NSCLC, thus triggering a review for potential impairment of the NSCLC IPR&D impairment asset.

Based on our evaluation of the study results and all other data currently available, and in connection with the preparation of the financial statements for the first quarter, we performed an interim impairment test and determined that the revised estimated fair value of the NSCLC IPR&D intangible asset was below its carrying value. As a result, we recognized a partial impairment charge of $2.4 billion in In-process research and development impairment on our Condensed Consolidated Statements of Operations for the three months ended March 31, 2024.

To arrive at the revised estimated fair value, we used a probability-weighted income approach that discounts expected future cash flows to present value, which requires the use of Level 3 fair value measurements and inputs, and requires the use of critical estimated inputs, including: revenues and operating profits related to the planned utilization of SG in NSCLC, which, include inputs such as addressable patient population, projected market share, treatment duration, and the life of the potential commercialized product; the probability of technical and regulatory success; the time and resources needed to complete the development and approval of SG in NSCLC; an appropriate discount rate based on the estimated weighted-average cost of capital for companies with profiles similar to our profile; and risks related to the viability of and potential alternative treatments in any future target markets. Our revised discounted cash flows primarily reflect the smaller addressable market that Trodelvy could serve among metastatic NSCLC patients and a delay in expected launch timing for second-line plus patients. The revised estimated fair value of the NSCLC IPR&D intangible asset was $3.5 billion as of March 31, 2024.

If future events result in adverse changes in the key assumptions used in determining fair value, including the timing of product launches, information on the competitive landscape of treatments in this indication, changes to the probability of technical or regulatory success, failure to obtain anticipated regulatory approval or discount rate, among others, additional impairments may be recorded and could be material to our financial statements.

No IPR&D impairment charges were recorded during the three months ended March 31, 2023.

Selling, General and Administrative Expenses

Selling, general and administrative expenses are recorded when incurred and consist primarily of personnel costs, facilities and overhead costs, outside marketing, advertising and legal expenses, and other general and administrative costs related to sales and marketing, finance, human resources, legal and other administrative activities.

Selling, general and administrative expenses increased 4% to $1.4 billion for the three months ended March 31, 2024, compared to the same period in 2023, primarily due to stock-based compensation expenses related to the acquisition of CymaBay and restructuring expenses.

Interest Expense and Other Income (Expense), Net

The following table summarizes the period-over-period changes in Interest expense and Other (income) expense, net:

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Interest expense increased 11% to $254 million for the three months ended March 31, 2024, compared to the same period in 2023 due to a higher average interest rate on long-term debt. See Note 9. Debt and Credit Facilities of the Notes to Condensed Consolidated Financial Statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q for additional information on our long-term debt and related interest rates.

Other (income) expense, net for the three months ended March 31, 2024 primarily included $108 million of interest income, partially offset by $14 million of net unrealized losses on equity investments. Other (income) expense, net for the three months ended March 31, 2023 primarily included $256 million of net unrealized losses on equity investments, partially offset by $78 million of interest income.

Income Taxes

The following table summarizes the period-over-period changes in Income tax (benefit) expense:

Our effective tax rate decreased for the three months ended March 31, 2024, compared to the same period in 2023, primarily due to the non-deductible acquired IPR&D expense recorded in connection with our first quarter 2024 acquisition of CymaBay.

Liquidity and Capital Resources

We regularly evaluate our liquidity and capital resources, including our access to external capital, so that we can adequately and efficiently finance our operations.

Liquidity

Cash, cash equivalents and marketable debt securities were $4.7 billion and $8.4 billion as of March 31, 2024 and December 31, 2023, respectively. Cash and cash equivalents decreased by $1.4 billion from December 31, 2023 to March 31, 2024. The following table summarizes our cash flow activities:

Operating Activities

Net cash provided by operating activities was $2.2 billion for the three months ended March 31, 2024, compared to $1.7 billion for the same period in 2023. The change was primarily due to lower rebate payments, mostly due to timing, as well as lower inventory spend, partially offset by lower collections.

Investing Activities

Net cash used in investing activities was $2.2 billion for the three months ended March 31, 2024, compared to $826 million for the same period in 2023. The change was primarily due to the $3.9 billion net cash payment for the CymaBay acquisition, partially offset by proceeds from liquidation of marketable debt securities to fund the acquisition.

Financing Activities

Net cash used in financing activities was $1.4 billion for the three months ended March 31, 2024 and 2023. During the three months ended March 31, 2024, we utilized cash of $990 million for dividend payments and $400 million for common stock repurchases. During the three months ended March 31, 2023, we utilized cash of $969 million for dividend payments and $400 million for common stock repurchases.

Capital Resources and Material Cash Requirements

A summary of our capital resources and material cash requirements is presented in Part II, Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2023. Other than as disclosed in Notes 4. Available-For-Sale Debt Securities and Equity Securities, 6. Acquisitions, Collaborations and Other Arrangements, 9. Debt and Credit Facilities, 10. Commitments and Contingencies and 12. Income Taxes of the Notes to Condensed Consolidated Financial Statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q, there were no material changes to our capital resources and material cash requirements during the three months ended March 31, 2024.

Subsequently, in April 2024, we repaid $1.75 billion of senior unsecured notes due at maturity and made a scheduled $1.2 billion federal income tax payment for transition tax on the mandatory deemed repatriation of foreign earnings from the Tax Cuts and Jobs Act.

Critical Accounting Estimates

A summary of our critical accounting estimates is presented in Part II, Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2023. Other than as disclosed in Notes 2. Revenues, 7. Intangible Assets, 10. Commitments and Contingencies and 12. Income Taxes of the Notes to Condensed Consolidated Financial Statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q, there were no material changes to our critical accounting estimates during the three months ended March 31, 2024.

Information about our market risk is presented in Part II, Item 7A of our Annual Report on Form 10-K for the year ended December 31, 2023. Other than as disclosed in Notes 3. Fair Value Measurements, 4. Available-For-Sale Debt Securities and Equity Securities, 5. Derivative Financial Instruments and 9. Debt and Credit Facilities of the Notes to Condensed Consolidated Financial Statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q, there were no material changes to these disclosures.

Evaluation of Disclosure Controls and Procedures

An evaluation as of March 31, 2024 was carried out under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of our “disclosure controls and procedures,” which are defined in Rule 13a-15(e) under the U.S. Securities Exchange Act of 1934, as amended (the “Exchange Act”), as controls and other procedures of a company that are designed to ensure that the information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in U.S. Securities and Exchange Commission’s rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of March 31, 2024.

Changes in Internal Control over Financial Reporting

Our management, including our Chief Executive Officer and Chief Financial Officer, has evaluated any changes in our internal control over financial reporting during the quarter ended March 31, 2024, to identify any change that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting. In August 2023, we began deploying a new enterprise resource planning system (“ERP”) as well as other related systems. We have made changes to our internal control over financial reporting to address the related processes and systems. We will continue to evaluate any further changes in our internal control over financial reporting over the course of the implementation of the new ERP and other related systems, which is scheduled to occur in phases over the next few years.

Limitations on the Effectiveness of Controls

A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Because of inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues, if any, within a company have been detected. Accordingly, our disclosure controls and procedures are designed to provide reasonable, not absolute, assurance that the objectives of our disclosure control system are met and, as set forth above, our Chief Executive Officer and Chief Financial Officer have concluded, based on their evaluation as of the end of the period covered by this report, that our disclosure controls and procedures were effective to provide reasonable assurance that the objectives of our disclosure control system were met.

PART II. OTHER INFORMATION

Item 1. LEGAL PROCEEDINGS

For a description of our significant pending legal proceedings, please see Note 10. Commitments and Contingencies of the Notes to Condensed Consolidated Financial Statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q.

In evaluating our business, you should carefully consider the following discussion of material risks, events and uncertainties that make an investment in us speculative or risky in addition to the other information in this Quarterly Report on Form 10-Q. A manifestation of any of the following risks and uncertainties could, in circumstances we may or may not be able to accurately predict, materially and adversely affect our business and operations, growth, reputation (including the commercial or scientific reputation of our products), prospects, product pipeline and sales, operating and financial results, financial condition, cash flows, liquidity and stock price. We note these factors for investors as permitted by the Private Securities Litigation Reform Act of 1995. It is not possible to predict or identify all such factors; our operations could also be affected by factors, events or uncertainties that are not presently known to us or that we currently do not consider to present significant risks to our operations. Therefore, you should not consider the following risks to be a complete statement of all the potential risks or uncertainties that we face.

Product and Commercialization Risks

Certain of our products subject us to additional or heightened risks.

HIV

We receive a substantial portion of our revenue from sales of our products for the treatment and prevention of HIV infection. During the three months ended March 31, 2024, sales of our HIV products accounted for approximately 65% of our total product sales. We may be unable to sustain or increase sales of our HIV products for any number of reasons, including market share gains by competitive products, including generics, or the inability to introduce new HIV medications necessary to remain competitive. In such case, we may need to scale back our operations, including our future drug development and spending on research and development (“R&D”) efforts. For example, many of our HIV products contain tenofovir alafenamide (“TAF”), which belongs to the nucleoside class of antiviral therapeutics. If there are any changes to the treatment or prevention paradigm for HIV, and nucleoside-based therapeutics do not remain the preferred regimen, our HIV product sales would be adversely impacted.

Veklury

We face risks related to our supply and sale of Veklury, which was approved by U.S. Food and Drug Administration (“FDA”) as a treatment for patients with coronavirus disease 2019 (“COVID-19”). Veklury sales generally reflect COVID-19 related rates and severity of infections and hospitalizations, as well as the availability, uptake and effectiveness of vaccines and alternative treatments for COVID-19. In May 2023, the World Health Organization declared the end of COVID-19 as a public health emergency of international concern. Future sales of Veklury in the short- and long-term remain uncertain. If we do not accurately forecast demand or manufacture Veklury at levels to align with actual demand, then we may experience product shortages or build excess inventory that may need to be written off.

Cell Therapy

Advancing a novel and personalized therapy such as Yescarta or Tecartus, which are chimeric antigen receptor (“CAR”) T-cell therapies, creates significant challenges, including:

• educating and certifying medical personnel regarding the procedures and the potential side effects, such as cytokine release syndrome and neurologic toxicities, in compliance with the Risk Evaluation and Mitigation Strategy program required by FDA;

• securing sufficient supply of other medications to manage side effects, such as tocilizumab and corticosteroids, which may not be available in sufficient quantities, may not adequately control the side effects and/or may have detrimental impacts on the efficacy of cell therapy;

• developing and maintaining a robust and reliable process for engineering a patient’s T cells in our facilities and infusing them back into the patient; and

• conditioning patients with chemotherapy in advance of administering our therapy, which may increase the risk of adverse side effects.

The use of engineered T cells as a potential cancer treatment is a recent development and may not be broadly accepted by physicians, patients, hospitals, cancer treatment centers, payers and others in the medical community. While FDA has approved some cell therapies, including Yescarta and Tecartus, we must continue to demonstrate to the medical community the potential advantages of cell therapy compared to existing and future therapeutics. In November 2023, FDA announced that it is investigating the risk of T-cell malignancies in patients who received treatment with CAR T-cell therapy, noting that the overall benefits of CAR T-cell therapy products continue to outweigh their potential risks for their approved uses. In January 2024, FDA determined that safety labeling issues were needed for approved CAR T-cell therapies, including a “boxed warning” about the possible risk of T-cell malignancies in patients treated with CAR T-cell therapy. Additionally, FDA requested continued monitoring and reporting of cases of secondary cancers. For challenges related to the reimbursement of Yescarta and Tecartus, see also **“**Our existing products are subject to reimbursement pressures from government agencies and other third parties, required rebates and discounts, and other pricing pressures.”

We rely on third-party sites to collect patients’ white blood cells, known as apheresis centers, as well as shippers, couriers, and hospitals for the logistical collection of patients’ white blood cells and ultimate delivery of Yescarta and Tecartus to patients. These vendors may encounter disruptions or difficulties that could result in product loss and regulatory action. Apheresis centers may also choose not to participate in our quality certification process, or we may be unable to complete such certification in a timely manner or at all, which could delay or constrain our manufacturing and commercialization efforts.

We also face risks related to our in-house CAR T-cell therapy manufacturing facilities in California, Maryland and the Netherlands, spanning process development, vector manufacturing, clinical trial production and commercial product manufacturing. Quality, reliability and speed are critical in cell therapy manufacturing to quickly and safely deliver our cell therapies to patients. Any delays or quality issues with our manufacturing operations could adversely affect our business and damage our reputation. In addition, we may not be able to sufficiently increase manufacturing network capacity to meet growing demand.

Our success depends on developing and commercializing new products or expanding the indications for existing products.

If we are unable to launch commercially successful new products or new indications for existing products, our business will be adversely impacted. The launch of commercially successful products is necessary to grow our business, cover our substantial R&D expenses, and offset revenue losses when existing products lose market share due to factors such as competition and loss of patent exclusivity. There are many difficulties and uncertainties inherent in drug development and the introduction of new products. The product development cycle is characterized by significant investments of resources, long lead times and unpredictable outcomes due to the nature of developing medicines for human use. We expend significant time and resources on our product pipeline without any assurance that we will recoup our investments or that our efforts will be commercially successful. A high rate of failure is inherent in the discovery and development of new products, and failure can occur at any point in the process, including late in the process after substantial investment. Such failures have had, and may have in the future, a negative impact on our business and financial results, includi

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None of our directors or officers adopted, modified or terminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement during the quarter ended March 31, 2024, as such terms are defined under Item 408(a) of Regulation S-K.

Reference is made to the Exhibit Index included herein.

Exhibit Index