Q325 Resource Book

October 2025



FOR INVESTOR USE ONLY; NOT FOR PROMOTIONAL USE.



Gilead's Mission

To discover, develop, and deliver innovative therapeutics for people with life-threatening diseases.

Our Ambitions

Bring 10+ transformative therapies to patients

by 2030¹

Be a biotech employer and partner of choice

Deliver shareholder value in a sustainable, responsible manner

Strategic Priorities

Maximize near-term revenue growth

Maximize impact of long-acting HIV therapies

Expand and deliver on oncology programs



1. Six new transformative therapies have been delivered to date since January 2020: Hepcludex (bulevirtide) in the EU, Livdelzi (seladelpar), Sunlenca/Yeztugo/Yeytuo (lenacapavir), Veklury (remdesivir), Tecartus (brexucabtagene autoleucel), and Trodelvy (sacituzumab govitecan-hziy).



Welcome to our Gilead Investor Resource Book. This book is a collection of materials intended to streamline the reader's initial review of Gilead materials. Of course, there is no substitute for our SEC filings, and our most recent disclosures may be found on our Investor Relations page at https://http://investors.gilead.com. As a supplement, however, we have pulled together materials designed to help bring you up to speed on Gilead's products, strategy, team, and performance to date. Any financial data included is available in Microsoft Excel, on request.

As you get to know Gilead, please reach out to the Investor Relations team if you have questions or feedback. In the meantime, and on behalf of the management team, thank you for your interest in Gilead.



Jacquie Ross, CFA

Senior Vice President, Treasury & Investor Relations Email: investor_relations@gilead.com



Contents

5

About Gilead

7

Our Business

8

Our Therapeutic Areas of Focus

41

Key Corporate Transactions and Partnerships

42

ESG at Gilead

46

Press Releases: Corporate & Regulatory

47

Press Releases: Data Updates

48

Our Leadership Team

51

Our Board of Directors

55

Analyst Coverage and Largest Investors

56

Capital Allocation

57

Debt and Credit Facility

58

Financials

1987

Gilead is founded

About Gilead

Gilead was founded in 1987 as a biopharmaceutical company focused on viral diseases, cardiovascular disease, and cancer. The company was named after a Middle Eastern medication known as the balm of Gilead, which founder

Michael Riordan considered the world's first pharmaceutical product. Gilead has consistently been a leader in virology, starting with its first HIV therapy approval in 2001, which was followed by the development of HBV treatments, the first single tablet regimen for HIV, and a transformational cure for HCV.

In 2024, Gilead presented remarkable clinical data from the PURPOSE 1 and 2 trials evaluating lenacapavir as an investigational twice-yearly regimen for

long-acting HIV pre-exposure prophylaxis (PrEP). Approved as Yeztugo by FDA in June 2025 and as Yeytuo by the European Commission in August 2025, we believe that it could help more people than ever before benefit from HIV PrEP. Additionally, we are also evaluating new lenacapavir-based combinations for daily, weekly, monthly, quarterly, and twice-yearly options for HIV treatment. This pipeline is expected to support up to 7 HIV treatment launches by the end of 2033, extending Gilead's HIV leadership well beyond Biktarvy's projected U.S. LOE in April 2036.

Our oncology business has grown to more than $3 billion sales annually, including sales of Trodelvy, the first-approved TROP2 ADC, and our cell therapies, Yescarta and Tecartus. We continue to evaluate Trodelvy in new indications and have a wide range of other promising clinical stage oncology programs. In cell therapy, we are expanding our Kite family of products, including through the Arcellx-partnered BCMA CAR T therapy, anito-cel, expected to potentially launch in the

U.S. for late-line multiple myeloma in 2026.

We continue to build our third therapeutic area of focus, inflammation, most recently with the addition of Livdelzi, which received FDA accelerated approval in August 2024 as a second-line treatment for PBC. In earlier stages, we have a broad range of promising inflammation collaborations and programs underway.

In summary, we have a robust pipeline of over 120 pre-IND and clinical programs, including 33 in Phase 3. Combined with disciplined operating expense management, Gilead is well-positioned to deliver long-term growth across all three therapeutic areas.

1992

Gilead completes its IPO

1996

John Martin appointed CEO

Focus on Virology

2012

Gilead acquires Pharmasset

2013

Sovaldi, first oral combination HCV cure, approved by FDA

2016

John Milligan appointed CEO

Building a Diversified Portfolio

2001

Viread for HIV approved by FDA

2003

Gilead acquires Triangle Pharmaceuticals

2006

Atripla, first single tablet regimen for HIV, approved by FDA

Leadership in HIV and HCV

2017

Yescarta, our first cell therapy, approved by FDA

2018

Biktarvy, market leading daily pill regimen for HIV, approved by FDA

2019

Daniel O'Day appointed Chairman and CEO

2020

First FDA approval for Veklury in COVID-19

2021

Trodelvy receives full FDA approval for 2L mTNBC

2022

Sunlenca (lenacapavir) receives U.S. FDA and European MAA authorizations

2024

Gilead acquires CymaBay; Livdelzi (seladelpar) receives accelerated FDA approval for primary biliary cholangitis

2025

Yeztugo (lenacapavir) approved as first twice-yearly HIV PrEP injectable



Progress on Gilead's Transformation

Chief Executive Officer and Chairman Daniel O'Day joined Gilead in March 2019, and announced a new strategic direction in January 2020. In the years since, Gilead has made strong progress on its strategic clinical and commercial goals, as well as diversifying and strengthening the early pipeline through internal and external innovation and collaboration.









New Products with 11 Approved Indications¹

75% Increase in Clinical Portfolio²

Oncology

Virology Inflammation

32

8

12

12

9

17

30



















56

Pipeline Bolstered with M&A and Partnerships























Q119 Q325

  1. Since Q1 2019. Approved indications reflects first approval or accelerated approval in a major market or new indications: Trodelvy in metastatic triple-negative breast cancer (2021), and HR+/HER2- metastatic breast cancer (2023); Yescarta in follicular lymphoma (2021), and large B-cell lymphoma (2022); Veklury in COVID-19 (2020); Tecartus in mantle cell lymphoma (2020, accelerated), and acute lymphoblastic leukemia (2021); Hepcludex in hepatitis Delta virus (2020 Europe, not approved in U.S.); Sunlenca in heavily treatment-experienced HIV (2022); Livdelzi in primary biliary cholangitis (2024); and Yeztugo/Yeytuo as a pre-exposure prophylaxis (PrEP) to reduce the risk of sexually acquired HIV (2025). Does not include line extensions (e.g., expanded pediatric label). 2. Program count does not include potential partner opt-in programs or programs that have received both FDA and EC approval.

Our Business

Gilead is best known for pioneering therapies in HIV and HCV. Over

the last several years, we have extended our reach into new therapeutic areas through strategic partnerships and acquisitions to create the foundation for a more sustainable and diversified business. With the launch of Yeztugo for HIV PrEP, Gilead is well positioned to continue diversifying in business.

72% HIV



11% Liver Disease

TOTAL Q325 PRODUCT SALES

$7.3B

-2% YOY

11% Oncology

3% Other1

3% COVID-19

Virology

HIV Q325 Revenue of $5.3B, +4% YoY

Sales increase primarily driven by increased demand and favorable inventory dynamics, partially offset by lower average realized price.

Q325 Yeztugo Sales of $39M Reflect Strong Performance in First Full Quarter

$54M in sales since launching in the U.S. in June 2025.

Liver Disease Q325 Revenue of $819M, +12% YoY

Sales driven almost entirely by Livdelzi for primary biliary cholangitis, which exceeded

$100M in quarterly revenue for the first time in Q325.

Oncology

In Q325, Oncology Revenue was $788M, -3% YoY

Cell Therapy Q325 Revenue of $432M, -11% YoY

Sales decrease reflects ongoing competitive headwinds.

Trodelvy Q325 Revenue of $357M, +7% YoY, -2% QoQ

Sales increase YoY primarily driven by higher demand, with continued strength in metastatic breast cancer more than offsetting lower YoY sales due to the withdrawl of the accelerated approval indication for metastatic urothelial cancer in the U.S.

  1. Other Q325 Revenue of $184M, -8% YoY, reflects sales from AmBisome, Gilead's cardiopulmonary portfolio, and other revenues.

    Our Therapeutic Areas of Focus

    The next section of this Resource Book will address our therapeutic focus areas in more detail. Throughout the Resource Book, investigational products and programs that are part of Gilead's pipeline are discussed. Please note that investigational products or uses are not approved by the FDA, and their safety and efficacy have not been established.







    Virology Inflammation

    1. HIV Prevention, Treatment, and Cure

    2. Biktarvy

    3. Long-Acting HIV Regimens

  1. HIV Launch Timelines

  2. COVID-19

  3. Liver Disease

  4. HCV

  5. HBV

  6. HDV

  7. Livdelzi in PBC

21 Viral and Liver Disease Pipeline

22 Early Inflammation Pipeline

23 Novel Mechanisms



Oncology

24 Oncology Strategy

25 Oncology Program Summary

26 Cell Therapy

33 Trodelvy

37 Arcus Collaboration

  1. Early Oncology

  2. Oncology Pipeline

HCV - hepatitis C virus; HBV - hepatitis B virus; HDV - hepatitis D virus; PBC - primary biliary cholangitis.

Driving Innovation in HIV Treatment, Prevention, and Cure

Gilead is a pioneer in HIV treatment and prevention and remains committed to bringing the most innovative therapeutics to market to support people with HIV (PWH) and people who could benefit from HIV PrEP. HIV and insufficient use of antiretrovirals (ARVs) remains a challenge with 1.3M new HIV infections annually, 41M people living with HIV, and ~25% of PWH not receiving treatment globally⁵.

Gilead's Portfolio of HIV Treatment and Prevention Products

Launched % Q325

Patent Expiry2

Product Description

Treatment Prevention

Revenue1

U.S. EU

First twice-yearly subcutaneous treatment for PWH who are MDR

2022

-

0.3%

2037

Most prescribed HIV treatment regimen in the United States3

2018

-

52.2% 20364,62033

TAF-based HIV prevention option and HIV treatment

2016

2019

9.9% 20314,62027

First approved TAF-based STR

2015

-

5.3% 202942028

TDF-based STR

2011

-

0.3% 202542026

TDF-based treatment; first medication approved for prevention

2004

2012

0.1% 2020 2017

First approved STR 2006 - 0.0% 2020 2017

First STR with an integrase inhibitor 2012 - 0.2% 20294 2028

Smallest tablet size STR when launched 2016 - 3.9% 20324 2027

First twice-yearly subcutaneous PrEP - 2025 0.6% 2037⁶



Gilead's Market Leadership Today

The HIV treatment market is growing at 2-3% annually, and is expected to continue at this rate through the mid-2030s. The current HIV treatment market consists of mostly daily oral regimens led by Biktarvy, which is considered a standard of care given its high bar of tolerability, efficacy, and high barrier to resistance.

Well-Positioned for the Future

Gilead is well-positioned to maintain its leadership in HIV treatment, driving innovation focused on person-centric dosing options. Gilead anticipates that its ~75% share of the U.S. branded market today will grow to ~80% by the mid-2030s.

1. Total product sales excluding Veklury. 2. As of 2024 10-K filing. See Page 69 for a summary of the methodologies and assumptions underlying estimated patent expiry dates presented. 3. As of Q325, see Page 10 for further details. 4. Reflects settlement/license agreements with generic manufacturers. MDR - multi-drug resistant. 5. UNAIDS 2024 Global AIDS Update. 6. As of Q325 10Q.

Biktarvy: Most Prescribed HIV Treatment Regimen

With a proven track record in HIV treatment, Biktarvy continues to set the standard for efficacy and safety, reinforcing Gilead's commitment to delivering innovative and durable therapies for people with HIV.

Overview

Biktarvy is a complete, single pill, once-a-day prescription medicine used to treat HIV-1 infection in adults and children¹, virologically suppressed individuals with known or suspected M184 resistance. Biktarvy can be used in both people who are initiating HIV treatment (treatment-naïve) and people with prior treatment history who are replacing their current HIV medicines (switch). As Gilead continues to address unmet needs in HIV across a broad range of preferences, we expect that daily orals will remain widely used, with Biktarvy playing a critical role.

Powerful Medicines Working Together to Suppress the Virus





bictegravir emtricitabine tenofovir alafenamide

The HIV Treatment Market Leader

#1

in Naïve in all G9 markets2,8

#1

in Switch in 7 of G9 markets2,8

~52%

U.S. treatment market share2

$3.7B

Q325 Revenue,

+6% YoY

13.4

11.8

10.4

8.6

7.3

4.7

1.2

FY18 FY19 FY20 FY21 FY22 FY23 FY24

Revenue ($B)

BIKTARVY PROJECTED U.S. LOE EXTENDED TO 2036

On October 6, Gilead announced that it has entered into a settlement agreement to resolve the patent litigations with the generic manufacturers that filed abbreviated new drug applications with the U.S. FDA to market generic versions of Biktarvy. Under

the Agreements, which are subject to standard acceleration provisions, no generic entry is expected prior to April 1, 2036 in the United States for Biktarvy tablets containing bictegravir (50 mg), emtricitabine (200 mg), and tenofovir alafenamide (25 mg).

Durable Viral Suppression at Five Years3



In two Phase 3 studies4, ≥98% of participants on Biktarvy for 240 weeks maintained an undetectable viral load (HIV-1 RNA <50 copies/ mL) through five years of follow-up (M=E analysis⁵).



Zero cases of treatment failure due to emergent resistance were detected among the final resistance analysis population of both studies, demonstrating the efficacy and tolerability profile of Biktarvy in treatment-naïve adults3.



The ongoing BICSTaR real-world observational study showed statistically significant improvement in treatment satisfaction at Month 12 following the switch to Biktarvy6,7.

Biktarvy: bictegravir 50mg/emtricitabine 200mg/tenofovir alafenamide 25mg. 1. Children who weigh at least 25 kg. 2. Source: IQVIA LAAD. 3. Sax P.E., et al. j.eclinm. 2023; 59. 4. Phase 3 Study 1489 and Study 1490. 5. Missing = Excluded (M=E) analysis; study participants with missing data were excluded when calculating the proportion of study participants with HIV-1 RNA <50 copies/m. 6. Brunetta J, et al. European AIDS, Poster PE2/50, 2021; 7. Brunetta J, et al. European AIDS, Supplement, 2021. 8. G9 markets defined as U.S., Canada, China, France, Germany, Italy, Japan, Spain and UK.

Lenacapavir: Long-Acting Option for Treatment and PrEP

66%

30%

40%

Over the past several decades, the optimization of antiretroviral therapy has dramatically improved HIV treatment outcomes and prevention efforts globally. Still, ~55% of people with HIV have identified less frequent dosing as the greatest need1. Lenacapavir, with its potential for flexible dosing, is the latest example of Gilead's person-centered approach to long acting (LA) innovation.

29%

of PWH miss 5+ doses2

of PWH are concerned with missing their HIV Tx daily dose3

of PWH miss 1+ dose2

of PWH fear taking medication could reveal HIV status1

In June 2025, Yeztugo (lenacapavir) was approved in the U.S. as the first twice-yearly injectable for HIV prevention.

In December 2022, Sunlenca (lenacapavir) was approved for HTE adults with MDR HIV, in combination with other antiretroviral(s).



What is Lenacapavir?

Lenacapavir (LEN) is a first-in-class, small molecule long-acting HIV-1 capsid inhibitor for HIV treatment and prevention. While most antivirals act on only one stage of viral replication, LEN has a unique multimodal mechanism designed to inhibit HIV

at multiple stages of its lifecycle. LEN disrupts nuclear transport, viral assembly and release, and capsid core formation, resulting in an abnormal structure of the virus and, thus, inhibiting HIV-1 replication.

What Options are Being Developed with Lenacapavir?

We expect Biktarvy will remain the preferred treatment option in the once-daily oral setting for most individuals, including the treatment-naive population. That said, we are developing a novel once-daily oral BIC/LEN to increase options for PWH switching therapy, including those on complex regimens. Many PWH also seek a longer-acting option, and our pipeline includes novel combinations of weekly and monthly orals, as well as quarterly and twice-yearly injectables.

In HIV prevention, in addition to the recently approved twice-yearly Yeztugo we are also working to develop once-yearly injections and potentially a monthly or weekly oral option.



Capsid Inhibitors

Capsid inhibitors target the capsid shell of HIV, preventing the virus from uncoating and releasing its genetic material into

the host cell as well as the formation of a maturation capsid.

Examples: GS-4182, GS-3107

NRTTI

Nucleoside reverse transcriptase translocation inhibitors (NRTTIs) block the reverse transcriptase enzyme, preventing the conversion of RNA into DNA and terminating DNA synthesis.

Examples: GS-1614, Islatravir

11 1. 2024 Global PWH Research (N=340). 2. IQVIA LAAD; data on missed doses per month. 3. 2024 Global Demand Research (N=341). HTE - heavily treatment experienced; MDR - multi-drug resistant; PWH - people with HIV; TAB - Teropavimab; ZAB - Zinlirvimab; bNAbs - Broadly neutralizing antibodies; INSTI - integrase strand transfer inhibitors; NRTTI - Nucleoside reverse transcriptase translocation inhibitor.

INSTI

Integrase strand transfer inhibitors (INSTIs) block the action of integrase which prevents integration of viral DNA into the host cell's DNA, thereby stopping the virus from replicating.

Examples: GS-1720, GS-1219, GS-3242

bNAbs

Broadly neutralizing antibodies (bNAbs) recognize and block the entry of various HIV strains into healthy cells and can also activate other immune cells to destroy HIV-infected cells.

Examples: TAB, ZAB



Investor Resource Book

Yeztugo Approved as First Twice-Weekly HIV PrEP

Pre-exposure prophylaxis (PrEP) is the use of antiretroviral medication by HIV-negative individuals to prevent HIV infection. In June 2025, Yeztugo (lenacapavir) was approved in the U.S. as the first twice-yearly injectable for HIV prevention. Marketing authorization of Yeytuo (lenacapavir) by the EC followed in August 2025, with other regulatory filings ongoing globally.



Subcutaneous Injection Allows for Biannual Dosing

Following initiation dosing, Yeztugo is delivered in two 1.5 mL SC injections 2x/year, and can

be administered in the abdomen or thigh. In PURPOSE 1 and 2, lenacapavir was generally well-tolerated with 0.2% (4/2138) and 1.2% (26/2183) of participants discontinuing due to ISRs, respectively. Subsequent injections can be administered 24-28 weeks after the last dose, offering a 4-week window for greater

flexibility. Prodrugs of lenacapavir have enabled the

Yeztugo Launch Update

$39M

$54M

Q325 revenue Revenue since launch

Yeztugo has recieved updated

recommendations in clinical guideline for HIV prevention:

Payer coverage achieved almost three months ahead of schedule

75%

90%

Payer coverage target by the end of 1H26

Gilead has agreed with the Global Fund and the U.S. State Department, through the President's Emergency Plan for AIDS

development of investigational oral options for once-

weekly and once-monthly HIV treatment, to the recently approved twice-yearly Yeztugo/Yeytuo. A prodrug is a compound that, although not

Lenacapavir as "Breakthrough of the Year"

  • The International AIDS Society (IAS)

  • World Health Organization (WHO)

  • NY Department of Health

  • U.S. Center of Disease Control

Relief (PEPFAR) to supply enough doses of lenacapavir for PrEP for up to 2 million people over three years in certain low-and middle-income countries.

active in its original form, is metabolized in the body to produce an active drug,

allowing for lower doses and potentially smaller pill sizes. LEN is combined with other agents for HIV treatment as the virus quickly adapts to single-drug therapies. In HIV prevention, Yeztugo has been approved as a monotherapy, as the risk of resistance is lower when preventing initial infection.

Unprecedented Phase 3 Results in HIV Prevention

0.00 per 100 PY

Expanding into New & Existing U.S. Populations

Yeztugo is expected to accelerate U.S. PrEP adoption from 500K+ individuals today, to 1M+ in the mid-2030s. To achieve this goal, Gilead is focused on maximizing the current consumer base while expanding to new populations who could benefit from PrEP

PURPOSE 1

100% of lenacapavir participants did not acquire HIV

(n=0/2,138)

100% efficacy vs bHIV, p<0.0001 p<0.0001 vs. Truvada

Consumer Population

People on PrEP;

People with long-acting injectable preference

Black/Latine Men;

Cisgender women; Gender diverse people1

Individuals with bacterial STI; People who inject drugs

99.9% of lenacapavir

0.10 per 100 PY (n=2/2,179)

HCP

Population

Current PrEP Providers Non-PrEP providers in

areas of high need

New specialties (i.e., OBGYN); New settings (i.e., colleges);

PURPOSE 2

participants did not acquire HIV

96% efficacy vs bHIV, p<0.0001 p=0.00245 vs. Truvada

At Launch (2025) Expansion Normalizing



1. Trans-women, Trans-men, and non-binary people. PrEP - pre-exposure prophylaxis; SC - subcutaneous; ISR - injection site reaction; bHIV - background HIV incidence; PY - person years; PEPFAR - President's Emergency Plan for AIDS Relief; OBGYN - obstetrician and gynecologist.

Multiple Potential Launches by 2030 in Treatment & Prevention

PrEP

Lenacapavir and its prodrugs are foundational in our treatment and prevention programs. Gilead has seven ongoing clinical programs evaluating daily, weekly, monthly, quarterly, and twice-yearly regimens based on lenacapavir or one of its prodrugs. We have confidence in both the breadth and quality of our innovative pipeline, as well as the speed at which we can progress development.

Latest Disclosure

Expected Updates in 2025

Launch

Once-Yearly

LEN for PrEP

Phase 3

Ph3 PURPOSE 365 FPI

Potential Filing 2027

Daily

BIC/LEN

Phase 3

Ph2 ARTISTRY-1 Update AIDS24 Ph3 ARTISTRY-1 and -2 LPI 2H24

Phase 3 ARTISTRY-1 and -2 Update 2H25

Potential Filing 2026

Weekly

LEN/ISL¹

Phase 3

Ph2 Update CROI24

Ph3 ISLEND-1 and -2 FPI 2H24

-

Potential Filing 2026

GS-4182 + GS-1720

Phase 2

Ph1 Update AIDS24

Ph2 WONDERS-1² LPI 2H24 Ph2 WONDERS-2 FPI 2H24

On clinical hold

Potential Filing 2028

Targeting Launch 2029

GS-3107



Phase 1

Ph1 FPI 2H24

-

Monthly

Undisclosed INSTI #1 or 2



Preclinical

-

-

Targeting Launch 2030+

Quarterly

GS-1614

Phase 1

-

-

Targeting Launch 2030+

Twice-Yearly

LEN + TAB + ZAB

Phase 2

Ph2 Update 2H24

-

Targeting Launch 2030+

GS-1219 or GS-3242



Phase 1

Ph1 FPI 2H24

Phase 1 Update 2H25

Targeting Launch 2030+

Treatment

Virally Suppressed Population
Treatment Naive Population
Treatment Naive Population Under Consideration

Note: Timeline estimates are as of 30 September, 2025 and subject to change. Planned data readouts and regulatory submissions not necessarily in chronological order. For non-registrational studies, data readouts listed may be interim readouts. The use of lenacapavir for once-yearly prevention and the combinations and investigational candidates shown are investigational; the safety and efficacy of these uses have not been established. 1. Lenacapavir + Islatravir is being developed in collaboration with our partner, Merck. 2. WONDERS-1 is a Phase 2/3 trial. CROI - Conference on Retroviruses and Opportunistic Infections; AIDS - International AIDS Conference; FPI - first patient in; LPI - last patient in; Inj - Injection; INSTI - Integrase strand transfer inhibitor; PrEP - Pre-exposure prophylaxis; SubQ -Subcutaneous; TAB - Teropavimab; ZAB - Zinlirvimab.

Leveraging Virology Expertise for COVID-19

We are continuously innovating potential treatments for viral diseases, leveraging our extensive expertise in virology. This innovation is exemplified by Veklury (remdesivir), which has become the antiviral standard-of-care for hospitalized COVID-19 patients1,2.

Veklury: Continued Benefit in COVID-19, Including in Variants of Concern

Veklury (remdesivir) played a crucial role during the COVID-19 pandemic, significantly reducing hospitalization, shortening time to recovery, and slowing disease progression. The pivotal Phase 3 ACTT-1 trial demonstrated 5 days shorter recovery time versus placebo³.

Stable Amid Dynamic Environment

Following the peak of COVID-19, sales of Veklury have decreased and stabilized, reflecting trends in hospitalization. Although the virus' severity has

lessened, hospitalization and mortality from the virus continue. The environment remains dynamic, with expected quarter-to-quarter variability from seasonal spikes. Veklury's share of treated hospitalized patients in the U.S. has remained consistently strong at over 60%, reinforcing its clinical benefit and position as

the antiviral standard of care for hospitalized patients treated for COVID-19. For full-year 2025, Gilead expects ~$1B in Veklury revenues5.

Remdesivir vials donated globally6

~2M

127

Countries with distribution access from voluntary licenses6

14.5M

Patients have access to Veklury and generic remdesivir6

>60%

Share of U.S. treated hospitalized patients with COVID-197

5.6

3.9

2.8

2.2

1.8

FY20 FY21 FY22 FY23 FY24

Revenue ($B)



Gilead at IDWeek 2025

At IDWeek 2025, Gilead presented new analyses of Veklury from the Phase 3 REDPINE study, which investigated viral load dynamics in individuals hospitalized with COVID-19 who have severely impaired renal function or have undergone solid organ transplantation - two groups at elevated risk for prolonged infection. In addition, complementary real-world evidence further illuminated

treatment patterns among older adults with compromised health and immunocompromised individuals hospitalized with COVID-19 in the United States, highlighting persistent gaps in care and areas

of unmet needs.

1. COVID-19 Treatment Guidelines Panel. Coronavirus Disease 2019 (COVID-19) Treatment Guidelines, NIH. 2. Veklury. Prescribing Information. Gilead Sciences, Inc.; 2022. 3. Reduced mortality did not reach statistical significance n the ACTT-1 trial. 4. Mozaffari E, et al. CROI 2024. 5. Guidance as of August 7, 2025. Financial guidance is subject to a number of risks and uncertainties. See the Forward-Looking Statements section on Page 70 for further information. 6. Based on global Veklury, global remdesivir, and licensed generic remdesivir volume donated and shipped for distribution. 7. Actuals based on HealthVerity Hospital Chargemaster + Premier Hospital Data.

Expanding Impact in Liver Disease Management

Gilead has been a leader in liver disease research and treatment for over three decades. Our therapies have transformed liver disease treatment, addressing large gaps in need and improving patient outcomes.

About Liver Diseases

Despite significant advancements in liver disease treatment, there remains a substantial global unmet need, with millions of people affected by chronic liver disease.

Chronic infection with HBV, HCV, or HDV can lead to serious and life-threatening liver damage, including liver cirrhosis (scarring), liver cancer, and the need for liver transplant. Gilead's medicines have transformed the lives of those living with viral hepatitis. We have also made significant investments in testing and linkage to care to support governments globally aligning with WHO's goal to eliminate viral hepatitis as a public health threat by 2030.

Leveraging our extensive experience, we recently received FDA accelerated approval for Livdelzi for certain adults with primary biliary cholangitis (PBC). Livdelzi is the first treatment option for PBC to significantly improve both key PBC lab results and chronic itch (pruritus).

Regulatory Approvals¹ Liver Revenue Poised for Growth

HBV

HCV HDV PBC

2002

Hepsera

2008

Viread

2013

Sovaldi

2014

Harvoni

2016

Vemlidy Epclusa

2017

Vosevi

2021

Hepcludex2

2024

Livdelzi



Due to the curative nature of our HCV medicines, the incidence

of new patient starts is approaching a stable rate, and sales from

Liver Disease

3.7

2.9 2.9

2.8

2.8

3.0

2019 2020 2021 2022 2023 2024

Revenue ($B)

our Liver Disease business have largely steadied, reflecting our dedication towards eliminating viral hepatitis. With the recent FDA accelerated approval of Livdelzi, our Liver Disease business is poised for a return to growth.

$819M

Q325 Revenue

+12%

~60%





Q325 YoY Revenue Q325 U.S. HCV

$8M IN GRANTS; 115,000 INDIVIDUALS EXPECTED FOR VIRAL HEPATITIS SCREENING

Many people diagnosed with viral hepatitis have fallen out of the care cascade - up to 50% of infected people remain diagnosed but untreated. ReLink is one program that reflects Gilead's efforts to create a healthier world for all.



Market Share

>50%

Market Share in 4 of EU4/UK

At Gilead, we understand that making the world a healthier place for all people means going beyond the medicine to help remedy health inequities and other barriers to care. HepConnect is one way that we are working to improve the lives of those with hepatitis C.

Dedication to Patient-Centric Innovation

Since our first approval in HBV in 2002, Gilead has consistently delivered innovative therapies for liver disease. This includes the approval of our first HCV cure in 2013, the first approved HDV treatment in Europe in 2021, and most recently, the accelerated approval of Livdelzi for PBC in 2024. Our commitment to liver disease remains steadfast as we work towards developing a functional cure for HBV, new therapeutics for HDV, and the elimination of HCV.

1. First global approval. 2. Hepcludex (bulevirtide) is authorized by the European Commission, MHRA, SwissMedic, and Australia TGA for treatment of chronic HDV. Its safety and efficacy have not been established in the United States or in other regions where it has not received regulatory approval. WHO - World Health Organization.

Delivering HCV Cure: Achievements and Impact

As a leader in liver disease innovation, Gilead has delivered curative treatment to approximately 11M HCV patients globally.

ABOUT HCV

HCV is a viral liver infection that can lead to serious and life-threatening liver damage, including liver cirrhosis, liver cancer, and the need for liver transplantation. Since launch, ~11M people have been treated with Gilead HCV

medications, but it is estimated that >50M people7are living with chronic HCV infection globally.

About 30% of people infected will clear the virus without any treatment, but the remainder could develop chronic HCV infection. Of those with chronic HCV infection, the risk of cirrhosis ranges from 15% to 30% within 20 years⁷.

There are still almost 250,0007 deaths from HCV-related complications including cirrhosis and liver cancer each year.

Gilead acquired Pharmasset in 2012, adding sofosbuvir which was further developed by Gilead and approved by FDA in 2013 as Sovaldi (sofosbuvir) for the treatment of chronic HCV in combination with other antivirals.

Before Sovaldi, HCV treatment was historically difficult and ineffective, and Gilead continued to build on Sovaldi's success with Harvoni (ledipasvir / sofosbuvir), the first single tablet regimen (STR) for HCV with a cure rate of more than 95%. Epclusa (sofosbuvir / velpatasvir), the first STR to treat all genotypes, followed in 2016.

Gilead's HCV Portfolio

Product U.S. Launch Description

Q325¹ Patent Expiry2

% U.S. EU

2017

First pan-genotypic regimen following direct

acting antiviral failure

0.6% 2034 2033





2016 First HCV STR to treat all genotypes 4.4%3 2033 2032

2014 First HCV STR for genotypes 1, 4, 5, or 6

0.1%4 2030 2030





2013 Backbone of all Gilead HCV therapies

0.2% 2029 2029

HCV Contribution to Total Revenue1

enabling cure

$35

HCV Revenue

Since HCV therapies are curative, and given the large number of patients treated using a Gilead-based regimen between 2014 and 2017, the number of patient starts has trended down over time. Since 2021, the number of patients treated with direct-acting antivirals (including sofosbuvir-based regimens) has stabilized. In 2024, HCV revenues were $1.8B, or 6% of total revenues, compared to a peak of 50-60% of revenues between 2014 and 2016.

Despite a WHO goal to eliminate HCV by 2030, few countries remain on track to do so, with estimates that overall HCV elimination in the U.S. will only be reached by 2037⁵, and 60% of high-income countries are off-track by at least 20 years⁶. As such, there is an ongoing need for curative HCV therapies as well as screening and linkage to care.

$30

Total Revenue

$25

$ Billions

$20

$15

$10

$5

$0

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

1. Total product sales excluding Veklury. 2. As of 2023 10-K filing. See Page 69 for a summary of the methodologies and assumptions underlying estimated patent expiry dates presented. 3. Amounts consist of sales of Epclusa and the authorized generic version of Epclusa sold by Gilead's subsidiary, Asegua. 4. Rounds down to 0%. Amounts consist of sales of Harvoni and the authorized generic version of Harvoni sold by Gilead's subsidiary, Asegua. 5. Sulkowski M et al, Adv Ther. 2021;38(1):423-440. 6. Gamkrelidze I, et al, Liver Int. 2021;41(3):456-463. 7. https://www.who.int/news-room/fact-sheets/detail/ hepatitis-c.

Delivering Healthier Futures: Commitment to Innovation in HBV

We've been advancing the science of HBV for more than three decades, helping transform how chronic HBV is treated for millions of people globally. Our therapies have helped set new standards in patient care and continue to drive progress in the fight against HBV.

Extensive History in HBV Innovation

Gilead therapies have helped transform chronic HBV into a long-term manageable condition. Vemlidy (tenofovir alafenamide) received FDA approval in 2016 as a once-daily treatment for adults with chronic HBV and compensated liver disease. In 2024, FDA expanded its approval to include pediatric patients aged six and older and weighing at least 25 kg.

We continue to work towards a functional HBV cure, collaborating with our partners to explore innovative targets, and expanding into new populations.



Global Prevalence of HBV1

≤1.0%
>2.0% to 2.5%
>2.5% to 5.0%
>5.0% to 10.0%
>10.0%

How does Vemlidy work?

Vemlidy (tenofovir alafenamide) is a nucleotide reverse transcriptase inhibitor (NRTI) that targets the hepatitis B virus (HBV). It works by inhibiting the reverse transcriptase enzyme, which is essential for the replication of HBV. By blocking this enzyme, Vemlidy prevents the virus from replicating in the liver. Vemlidy's patent expiration date is 2031 in the U.S.² and 2027 in the EU.

96-week results from two pivotal Phase 3 trials demonstrated that 73% of HBeAg-positive, and 90% of HBeAg-negative patients receiving Vemlidy achieved virological suppression. Additionally, Vemlidy demonstrated improved renal and bone density safety profiles compared to patients receiving TDF3.

Vemlidy Sales

959

814

842

862

657

488

321

122

3

2016 2017 2018 2019 2020 2021 2022 2023 2024

Revenue ($M)



Gilead's HBV and HDV Clinical Pipeline

SPOTLIGHT ON COMMITMENT TO PATIENT ACCESS: HAIVN

Gilead is part of a four-year public-private academic institution collaboration initiative with the Partnership for Health Advancement in Vietnam (HAIVN) to address barriers that limit viral hepatitis diagnosis and care at primary healthcare facilities in a country with high burdens of HBV and HCV.

HBV Cure selgantolimod + NCT04891770

Phase 2

Vir

Fully enrolled

HBV GS-2829;

Vaccine GS-6779 NCT05770895

Phase 1

Hookipa

Update expected at

AASLD 2025

Indication Program Trial Name Stage Partner Status

VIR-22184



1. Razavi-Shearer., et al. Lancet Gastroenterol Hepatol, 8(10)(2023). 2. As of 2023 10-K filing. See Page 69 for a summary of the methodologies and assumptions underlying estimated patent expiry dates presented. Reflects settlement/license agreements with generic manufacturers. 3. Agarwal K., et al. J Hepatol. 2018 Apr;68(4):672-681. 4. Combination trial of selgantolimod, VIR-2218, and anti-PD1. FPI -

17 first patient in (screening + consent); AASLD - American Association for the Study of Liver Disease.

Investor Resource Book

Ongoing Advancements in HDV Treatment

In March 2021, Gilead completed the acquisition of MYR GmbH for approximately €1.3B, adding Hepcludex, a first-in-class entry inhibitor.

About HDV

HDV is the most severe form of viral hepatitis, and is likely under-diagnosed. HDV has a global prevalence of 12M¹, affecting

01

BLV 2mg (144 weeks, n=49)

29%

18%

16%

20%

YR 3

BLV 10mg (144 weeks, n=50)

50%

26%

24%

22%

M

BLV 10mg delayed treatment (96 weeks, n=50)

52%

18%

16%

20%

BLV 10mg (96 weeks, n=50)

22%

12%

12%

-

204

BLV 10mg + PEG-IFNα (96 weeks, n=50)

70%

46%

46%

-

YR

BLV 2mg + PEG-IFNα (96 weeks, n=50)

44%

32%

26%

-

PEG-IFNα (48 weeks, n=24)

21%

17%

25%

-

an estimated 2% of people living with chronic HBV. HDV is a defective virus that requires the HBV surface antigen (HBsAg) for its replication and assembly. Thus, HDV occurs as a co-infection in individuals who have HBV, and significantly increases the risk of poor outcomes compared to HBV infection alone, which includes a more aggressive and rapid progression of disease towards

Pooled Analysis of MYR301 and Phase 2b MYR204 Data at EASL 2025

The pooled analysis presented at EASL25 showed the potential benefit of bulevirtide therapy even after treatment has stopped. The analysis showed that almost half (48.5%) of people treated with 10 mg bulevirtide monotherapy or in combination with pegylated interferon had undetectable HDV RNA at the end of treatment. Data showed that 36% of participants treated with either the 2mg or 10mg dose maintained virologic suppression almost two years after stopping treatment through achieving undetectable HDV RNA at the end of treatment. Based on the results from the Phase 3 MYR301 trial, Hepcludex is approved in the EU, UK, Canada, Switzerland, and Australia for the treatment of chronic HDV.

hepatocellular carcinoma and liver-related death2.

How does Hepcludex work?

M

Hepcludex (bulevirtide) is an entry inhibitor that binds to sodium taurocholate cotransporting polypeptide (NTCP), a receptor which normally facilitates the uptake of bile acids into hepatocytes, the chief functional cells of the liver. In individuals with HBV and HDV, NTCP is the critical receptor for viral entry into the liver cells. By binding to NTCP, Hepcludex inactivates NTCP and inhibits the entry of HBV and HDV into hepatocytes. This inhibition disrupts the viral life cycle, thereby reducing viral replication. The patent expiry for Hepcludex is 2029 in the EU⁶.

Treatment Regimen EOT

EOT

+24 weeks

EOT

+48 weeks

EOT

+96 weeks

HEPCLUDEX REGULATORY APPROVAL IN THE EU

In July 2023, Gilead received full marketing authorization from the European Commission for Hepcludex in the treatment of chronic HDV. EASL guidelines5recommend all HBsAg+ patients to be screened for HDV. Hepcludex was fully approved in the UK in August 2023, in Switzerland in February 2024, in Australia in July 2024, and in Candada in August 2025.

HEPCLUDEX REGULATORY FILINGS IN THE U.S.

On October 27 2022, Gilead received a complete response letter (CRL) from the U.S. Food and Drug Administration (FDA) for the Biologics License Application (BLA) of bulevirtide, citing concerns regarding the manufacturing and delivery of bulevirtide. No new studies to evaluate the safety and efficacy of bulevirtide were requested. Gilead has recently submitted a BLA for bulevirtide for the treatment of chronic HDV and is awaiting FDA feedback, with a decision expected in 2026.

Hepcludex (bulevirtide) is authorized by the European Commission, MHRA, SwissMedic, Australia TGA, and Health Canada for treatment of chronic HDV. Its safety and efficacy have not been established in the United States or in other regions where it has not received regulatory approval. 1. Stockdale et al. J Hepatol. 2020 Sep;73(3):523-532. 2. https://www.who.int/news-room/fact-sheets/detail/hepatitis-d. 3. Wedemeyer H., et. al. N Engl J Med 2023;389:22-32. 4. Asselah T. et al. N Engl J Med 2024;391:133-143. 5. Brunetto, Maurizia Rossana et al. Journal of Hepatology, Volume 79, Issue 2, 433 - 460, 2023. 6. See Page 69 for a summary of the methodologies and assumptions underlying estimated patent expiry dates presented. ALT - alanine aminotransferase; BLV - bulevirtide; CRL - complete response letter; HBsAg -hepatitis B surface antigen; LoD - level of detection; PegIFNα - pegylated interferon alpha; EASL - European Association for the Study of the Liver; EOT - end of treatment.

Livdelzi: Addressing High Unmet Need in 2L PBC

In March 2024, Gilead acquired CymaBay for approximately $4.3B, expanding Gilead's liver portfolio to include Livdelzi (seladelpar), an PPAR∂ agonist, which received FDA accelerated approval for treatment of primary biliary cholangitis (PBC) in August 2024.

About Primary Biliary Cholangitis

PBC is a chronic, autoimmune, cholestatic, and fibrotic liver disease that frequently leads to impaired quality and quantity of life. It causes progressive destruction of the bile ducts in the liver, leading to bile buildup, inflammation, and scarring. PBC impacts ~130K people in the

U.S. and ~125K people in Europe¹. Treatments for PBC aim to normalize serum levels of biochemical markers of disease progression (e.g., alkaline phosphatase (ALP) and bilirubin) and minimize symptom burden (e.g., fatigue, pruritus, generalized abdominal pain).

Pruritis: A Key Symptom of PBC

Pruritus, or chronic itching, is an extremely severe and debilitating symptom for patients with PBC. Patients often experience sleep disturbances, fatigue, and secondary skin lesions from constant scratching. Prior to Livdelzi's approval, there were no other treatment options that reduced pruritus with statistical significance for PBC.

What is the current treatment paradigm?

Livdelzi was granted accelerated approval for the treatment of PBC in combination with ursodeoxycholic acid (UDCA) in adults who have an inadequate response to UDCA or as a monotherapy in patients who are unable to tolerate UDCA. Livdelzi is not recommended in patients who have or develop decompensated cirrhosis.

UDCA is the only FDA approved agent for 1L PBC, but the majority of patients do not achieve normalization of ALP and/or bilirubin levels despite treatment². For patients with inadequate response to or intolerant to UDCA, two treatments are currently FDA approved, including Livdelzi (seladelpar, approved Aug'24) and Iqirvo (elafibranor, approved June'24). In September 2025, Intercept announced the voluntary withdrawl of Ocaliva (previously approved under accelerated approval for 2L PBC in the U.S.) following a request from the FDA.

U.S. 2L PBC Market Opportunity

2L Prevalence: ~130K

Diagnosed: ~80K

Treated: ~72K

UDCA 1L Treatment

Adequate

Responders

Inadequate Responders

(~21K - 23K)

Partial Responders

(~21K - 23K)

~42 - 46K

Gilead is leveraging its existing commercial infrastructure in liver diseases, which includes a large liver sales team that covers ~80% of the estimated U.S. prescribers for PBC. Separately, Kaken retains the rights to exclusively develop and commercialize Livdelzi in Japan, and Gilead will receive milestone payments and royalties on gross sales.

LAUNCH UPDATE

#1

Treatment for 2L

PBC in the U.S.

+35% Q325 QoQ Revenue

Livdelzi QoQ revenue growth was driven by

strong commercial execution (including some new launches outside of the U.S.) and a competitor product withdrawl.

We are pleased to see strong levels of patient persistence. We believe in Livdelzi's differentiation and value to those with PBC.

1. Lu et al., Clinical Gastroenterology and Hepatology. 2018; 2. de Veer RC, et al. Aliment Pharmacol Ther. 2022;56(9):1408-1418. 3. Jones D, et al. Hepatol Commun. 2023;7(3):e0057. EC - European Commission; EMA - European Medicines Agency; CHMP - committee for medicinal products for human use; PPAR∂ - peroxisome proliferator-activated receptor delta; UDCA - Ursodeoxycholic acid.

Livdelzi: New Treatment with Notably Differentiated Profile

In August 2024, FDA granted Livdelzi accelerated approval based on the pivotal Phase 3 RESPONSE study, which demonstrated statistically significant improvements in key biomarkers and pruritus. In February 2025, The EMA granted Lyvdelzi conditional marketing authorization.

About Livdelzi

RESPONSE

Inadequate responders

(ALP > 1.67)

~21-23K

Phase 3 FDA approved

EC approved

Livdelzi (seladelpar) is a potent selective peroxisome proliferator-activated receptor (PPAR)-delta ∂ agonist. PPAR∂ is a nuclear receptor expressed in most tissues, including the liver. Activation of PPAR∂ reduces accumulation of bile acids and pro-inflammatory cytokines, and increases lipid metabolism. The reduction of bile acid synthesis occurs through Fibroblast Growth Factor 21 (FGF21)-dependent downregulation of CYP7A1, the key enzyme for the

PBC Clinical Pipeline

RESPONSE evaluates Livdelzi in 2L patients inadequately responsive to UDCA with ALP > 1.67 x ULN. IDEAL assesses a separate 2L population, of those partially responsive to UDCA with ALP 1 - 1.67 x ULN. AFFIRM (confirmatory) evaluates 2L PBC patients that were either partial or inadequate responders to UDCA with compensated cirrhosis and ALP < 10 x ULN for EFS. ASSURE evaluates Livdelzi's long-term safety and efficacy which is important for PBC, as it is a chronic disease.

2L U.S.

synthesis of bile acids from cholesterol. The safety and efficacy profile of

Livdelzi is based on the Phase 3 RESPONSE study including data on liver enzyme elevations. Livdelzi is intended as a chronic, indefinite therapy for PBC.

Trial Name Population

Population Stage Status

Livdelzi's Impact on Pruritus

In the pivotal RESPONSE study, Livdelzi showed a statistically significant reduction in pruritus. While the exact cause of pruritus in PBC isn't fully known, the reduction of bile acids through activation of PPAR∂ is associated with a

IDEAL Partial responders (ALP 1 - 1.67)

~21-23K

Phase 3

Enrollment completed

ASSURE Open-label, long-term study - Phase 3 Active

decrease in IL-31, a known pruritogenic cytokine. The RESPONSE trial data is reflected in Livdelzi's label, making it the only currently available therapy which uniquely demonstrated statistically significant improvements for both the key biomarkers of PBC, along with this key symptom.

AFFIRM Patients with compensated

LIVDELZI'S IP PROFILE

Seladelpar's composition of matter patents are set to expire in 2026 in the U.S. Orphan Drug Exclusivity provides regulatory exclusivity for 7 years in the U.S. and 10 years in the EU⁵.

cirrhosis (Child-Pugh A & B)

- Phase 3 Active

ALP

Normalization

Positive ALP & Bilirubin Response

Statistically Significant Pruritus Reduction

Phase 3 Results

ENHANCE2RESPONSE3 (Pivotal) ASSURE4 (Open-Label, Long-Term)

Patient Population

intolerance to UDCA (n=265)

intolerance to UDCA (n=193) from RESPONSE) (n=97)

Inadequate response to or Inadequate response to or Prior study patients (not

RESPONSE patients

receiving continuous treatment (n=103)

RESPONSE patients

receiving placebo crossing over to seladelpar (n=52)

Composite ALP & Month 3 (10mg) Month 12 (10 mg) Month 24: 70%

Month 24: 72%

Month 24: 94%

ALP Normalization (%) Month 3 (10mg) Month 12 (10 mg) Month 24: 42%

Month 24: 17%

Month 24: 50%

Change in Pruritus (NRS) Month 3 (10mg) Month 6 (10 mg) Month 24: -3.1

Month 18: -3.8

Month 6: -3.8

Bilirubin Response (%)

78.2% vs. Placebo 12.5% (p<0.0001)

61.7% vs. Placebo 20% (p<0.0001)

27% vs. Placebo 0% (p<0.0001) 25% vs. Placebo 0% (p<0.0001)

-3.01 vs. Placebo -1.44 (p=0.0164) -3.2 vs Placebo -1.7 (p<0.005)

1. Kremer, A.E., et. al, Hepatology 80(1):p 27-37, July 2024. 2. Kremer, A.E., et al, The Liver Meeting 2023. 3. Hirschfield, G.M, et al. NEJM 2024;390:783-794. 4. Trivedy PJ, et al. Long-term efficacy and safety of open-label seladelpar in patients with primary biliary cholangitis (PBC): interim results for 2 years from the ASSURE study, EASL 2024. 5. See Page 69 for a summary of the methodologies and assumptions underlying estimated patent expiry dates presented. ALP - alkaline phosphatase; EC - European Commission; EFS - event free survival; ULN - upper limit normal.

Viral and Liver Diseases Pipeline

PHASE 1

PHASE 2

PHASE 3

FILED

Updates since Q2'25

HIV

Prevention

Yeztugo® (PURPOSE 1 & 2)

Lenacapavir (PURPOSE 365)

HIV PrEP LAI

HIV PrEP LAI

NDA approve

d and EC approved

EC Approved

Phase 3 FPI

HIV Trreatment

Bictegravir/lenacapavir oral combination

(ARTISTRY-1 & -2)

Islatravir/lenacapavir oral combination (ISLEND-1 &-2)1

HIV INSTI/capsid inhibitor (GS-1720/GS-4182) (WONDERS-1 & -2)2

HIV capsid inhibitor (GS-3107) Lenacapavir + teropavimab + zinlirvimab3HIV INSTI (GS-1219)

HIV INSTI (GS-3242)

HIV NRTTI (GS-1614)1

HIV Oral HIV LAO HIV LAO HIV LAI HIV LAI HIV LAI HIV LAI

HIV LAI

Clinical hold

Breakthrough Therapy Designation

HIV Cure

Teropavimab + zinlirvimab3,4Vesatolimod (FRESH)

HIV bispecific T-cell engager (GS-8588)

HIV Cure

HIV Cure HIV Cure

HDV

HEPCLUDEX® (MYR301)

HDV pre-S1 nAb (GS-4321)

HDV

HDV

BLA Submitte

d; MAA approved

BLA submitted

Phase 1 FPI

HBV

Cure

Selgantolimod

HBV Cure

HBV therapeutic vaccine (GS-2829 + GS-6779)

HBV Cure

Opt-ins

Assembly Biosciences

HBV, HDV, HSV

4 clinical stage programs

New listing since Q225

Change since Q225

PRIME Designation
Breakthrough Therapy Designation

Pipeline shown above as of end of Q3'25. 1. Subject to Gilead and Merck co-development and co-commercialization agreement. 2. Program timelines pending resolution of GS-1720 and GS-4182 clinical holds.

3. Teropavimab and zinlirvimab are broadly neutralizing antibody (bNAbs). 4. Non-Gilead sponsored trial(s) ongoing. BLA - biologics license application; HBV - hepatitis B virus; HDV - hepatitis delta virus; HIV - human immunodeficiency virus; HSV - herpes simplex virus; INSTI - integrase strand transfer inhibitor; LAI - long-acting injectable; LAO - long-acting oral; MAA - marketing authorization application; NDA - new drug application; NRTTI - nucleoside reverse transcriptase translocation inhibitor; PrEP - pre-exposure prophylaxis; FPI - first patient in.

Inflammation: Early Stage Pipeline

Gilead is developing therapies for inflammatory and fibrotic diseases through internal programs and collaborations. Our pipeline spans many mechanisms of action as we advance our understanding in this field of high unmet need to bring transformative therapies to market.

INFLAMMATION: PRIMED FOR THERAPEUTIC INNOVATION

Inflammatory diseases are widespread and complex, posing a significant burden to the healthcare system and to patients impacted.

Gilead is committed to understanding the pathways and biologies of inflammation and fibrosis. We have

a broad portfolio developed both in-house and through partnerships

and collaborations, spanning multiple mechanisms of action with potential to be applicable across various indications.

Leveraging Acquisitions and Collaborations:



LEO Partnership (January 2025): Gilead acquired global rights to develop, manufacture, and commercialize LEO's oral STAT6 program for inflammatory diseases which includes small molecule inhibitors and targeted protein degraders.

Tentarix Collaboration (August 2023): A research collaboration with equity investment and options for up to three programs co-developed using Tentarix's proprietary Tentacles platform.



Arcus Partnership Expansion (May 2023): A research collaboration with options to exclusively license candidates on up to four undisclosed inflammatory disease targets.

Nurix's IRAK4 License (March 2023): A research collaboration with option to license multiple protein degrader molecules from Nurix. GS-6791 is the first licensed development candidate.



EVOQ Collaboration (December 2022): A research collaboration with an option to license EVOQ's NanoDisc technology to develop and commercialize products for RA and SLE.



MiroBio Acquisition (August 2022): Added a proprietary discovery platform and portfolio of immune inhibitory receptor agonists.

Clinical Program

Indication

PHASE 1

PHASE 2

PHASE 3

FILED

Updates since Q2'25

Metabolic Disease

GLP-1R agonist (GS-4571)

Tilpisertib fosmecarbil (PALEKONA) IBD

α4β7 inhibitor (SWIFT) IBD

FXR agonist (GS-8670) IBD

BTLA agonist (GS-0272) Inflammatory Diseases

CD200R agonist (GS-5305) Inflammatory Diseases

PD1 agonist (GS-0151) Inflammatory Diseases

IRAK4 Degrader (GS-6791) Inflammatory Diseases

Lupus

Edecesertib (COSMIC)

Inflammatory Disease

Rich and Diverse Pipeline of Inflammation Assets

New listing since Q2'25 Change since Q2'25 Breakthrough Therapy Designation

P PRIME Designation

Metabolic Disease

Pipeline shown above as of end of Q3'25. BTLA - B- and T-lymphocyte attenuator; GLP-1 - glucagon-like peptide-1; IBD - inflammatory bowel disease; MAA - marketing authorization application; NASH - nonalcoholic steatohepatitis; NDA - new drug application; PBC - primary biliary cholangitis; PD1 - program cell death protein 1.

Showcasing Novel Mechanisms in Our Inflammation Pipeline

Gilead's inflammation pipeline includes promising therapies across novel targets and pathways. Covering multiple mechanisms of action and indications, this rich pipeline contains assets with potential for broad applicability across many inflammatory diseases. Below we highlight a few therapies from our pipeline.

Tolerize Immune Response

BTLA

Acquired (Mirobio) in 2022

GS-0272 (subcutaneous/IV)

Modulates the activity of T cells,

B cells, and dendritic cells

Phase 1b (Inflammatory Diseases)

Monotherapy

Highly selective agonist of BTLA, a critical

immune tolerance checkpoint, with the potential to modulate immune responses by significantly attenuating the activation of

T and B lymphocytes.

-

Block Immune Activation,

Infiltration, and Cytokines

TPL2

Developed in-house and wholly owned

tilpisertib fosmecarbil (oral)

Inhibits activation of pro-inflammatory

cytokines and cellular proliferation

Phase 2 (IBD)

Monotherapy

Potent inhibitor that suppresses MEK-ERK

inflammatory signaling and proinflammatory cytokine production in primary human monocytes, potentially enabling modulation of the immune response.

-

Block Immune Activation,

Infiltration, and Cytokines

α4β7

Developed in-house and wholly owned

GS-1427 (oral)

Prevents homing of pro-inflammatory

T-cells to the intestine

Phase 2 (IBD)

Monotherapy and in combination with IL-12/IL-23

α4β7 integrin inhibitor with the potential

to reduce gastrointestinal inflammation by blocking the migration of leukocytes to the gut, with possibility of combination with various anti-inflammatory agents.

IL-12/IL-23 (ustekinumab1)

Approach

Target

Program

Mechanism of Action

Clinical Phase (Indication)

Pathway Opportunity

Potential Combinations

1. Stelara (ustekinumab) is marketed by Janssen. BTLA - B and T lymphocyte attenuator; IBD - inflammatory bowel disease; NASH - nonalcoholic steatohepatitis; PSC - primary sclerosing cholangitis; TPL2 -Tumor Progression Locus 2; IV - intravenous therapy.

Gilead and Kite's Oncology Strategy

Gilead has driven significant scientific advancement for life-threatening illnesses like HIV and HCV, and continues to build on this legacy to deliver innovative therapies, including Yescarta and Trodelvy, to patients with cancer.

Key Approvals in Gilead Oncology

Oct 2017

Apr 2020

Dec 2020

Apr 2021

Apr 2022

Oct 2022

Jul 2023

Yescarta FDA

Trodelvy FDA

Tecartus EMA

Trodelvy FDA

Yescarta FDA

Yescarta EMA

Trodelvy EMA Approval

Approval for

Accelerated Approval

Conditional Approval in

Full Approval in

approval for

approval for

for pre-treated HR+/

3L+ R/R LBCL

3L+ mTNBC

R/R MCL

2L+ mTNBC

2L R/R LBCL

2L R/R LBCL

HER2- mBC



























Aug 2018

Yescarta EMA Approval for 3L+ R/R LBCL

Jul 2020

Tecartus FDA Accelerated Approval in R/R MCL

Mar 2021

Yescarta FDA Accelerated Approval for 3L R/R FL

Oct 2021

Tecartus FDA Approval in R/R Adult ALL

Sep 2022

Tecartus EMA Conditional Approval in R/R adult ALL

Feb 2023

Trodelvy FDA Approval in pre-treated HR+/ HER2- mBC

Our Oncology Therapies

Our commercial oncology portfolio includes three approved therapies which are collectively available

Oncology Revenue Now >$3B

in over 50 countries. Our therapies include: Trodelvy for 2L+ mTNBC and pre-treated HR+/HER2- mBC; Yescarta for R/R 2L+ LBCL and accelerated approval for 3L R/R FL; and Tecartus for R/R adult ALL and accelerated approval for R/R MCL. In addition to these approved indications, we have multiple late-stage trials initiated or planned to investigate multiple types of cancers for these programs.

>110K

Patients treated

$3.3B

FY24 revenues

Product Class Key Trials (Indication)



ASCENT (2L+ mTNBC)

Patent Expiry1Launched U.S. EU

Antibody Drug

Conjugate (ADC)

TROPiCS-02

(pre-treated HR+/HER2- mBC)

2020 20282 20292



CAR T-cell Therapy

ZUMA-7 (2L R/R LBCL) ZUMA-1 (3L+ R/R LBCL) ZUMA-5 (3L R/R FL)

2017 2031 -



CAR T-cell Therapy ZUMA-2 (R/R MCL)

ZUMA-3 (R/R adult ALL)

2020 2027 -

Oncology as % Product Sales

Oncology Sales

11%

11%

8%

5%

3%

2%

$1.3B

1%

0%

$656M

$456M

$264M

$7M

2017 2018 2019 2020 2021 2022 2023 2024

$2.1B

$2.9B

$3.3B



  1. As of 2024 10-K filing. See Page 69 for a summary of the methodologies and assumptions underlying estimated patent expiry dates presented. 2. Regulatory exclusivity in the U.S. and EU expires in 2032. ADC - antibody drug conjugate; ALL - acute lymphoblastic leukemia; FL - follicular lymphoma; LBCL - large B-cell lymphoma; mBC - metastatic breast cancer; MCL - mantle cell lymphoma; mTNBC - metastatic triple-negative breast cancer; OS - overall survival.

    Broad Range of Oncology Programs

    Gilead has leveraged internal development, M&A, and partnerships to build a broad pipeline of oncology programs that include an array of targets and mechanisms of action, further diversified by clinical phase.

    Approach Select Targets and Mechanism of Actions Program Lead / Partner

    TRIGGER TUMOR-INTRINSIC

    TROP-2

    PARP1

    Delivers & releases SN-38 (DNA damaging payload) following hydrolysis of linker

    Blocks cells from repairing damaged DNA, causing cancer cell death

    Trodelvy



    GS-0201

    PROMOTE IMMUNE-MEDIATED TUMOR KILLING

    Drive expansion, differentiation, and activation of T-cells, natural killer (NK) cells, and macrophages resulting in robust tumor cell killing and release of proinflammatory factors.

    CD19/CD20 CD19/IL-18 GPC2

    EGFR / IL13Ra2

    Engineered T cells that target tumor cells expressing CD19 and/ or CD20 IL-18 armored engineered T cells that target tumor cells expressing CD19 Engineered T cells that target tumor cells expressing GPC2

    Engineered T cells that target tumor cells expressing EGFR and/or IL13Ra2

    KITE-363/-753



    Not disclosed Not disclosed Not disclosed

    BCMA

    Engineered T cells that target tumor cells expressing BCMA



    Anito-cel

    TIGIT

    PD-1

    Allows T cells to target tumor cells

    Allows T cells to target tumor cells (inhibits PD-1 to PD-L1)



    domvanalimab

    zimberelimab

    IL-2

    Variant IL-2 molecule to stimulate anti-tumor immune response













    GS-4528

    Masked IL-12

    Stimulates anti-tumor immunity in both innate and adaptive immune system



    XTX301

    IL-18BP

    Enable pro-inflammatory IL-18 to activate anti-tumor effector cells



    GS-0321

    REMODEL TUMOR-PERMISSIVE MICROENVIRONMENT

    Modulate immunosuppressive and tumor-permissive cell types and pathways to promote immune responses and inhibit tumor growth.

    CCR8 CD73

    A2aR/A2bR

    Regulatory T cell depletion via ADCC activity

    Inhibits CD73 activity, preventing formation of adenosine Inhibits adenosine receptors to reverse immunosuppression













    GS-1811



    quemliclustat etrumadenant

    Cell Therapy with Kite: Transformational Cancer Treatment

    Kite joined the Gilead family in 2017, and has the largest in-house dedicated cell therapy manufacturing network to support both clinical programs and commercial expansion.

    What is Cell Therapy?

    CAR T-cell therapy is a custom-made cancer treatment that is designed to work by engineering a patient's own white blood cells and harnessing their immune system to treat

    certain kinds of blood cancer. Unlike most cancer treatments, CAR T is a one-time treatment and may have curative potential as supported by the overall survival benefit we have seen

    with Yescarta in ZUMA-7. Today, CAR T is available through Authorized Treatment Centers (ATCs).

    Our Cell Therapy Approvals To Date

    Indication

    Trial(s)

    U.S. Approval

    EU Approval

    2L R/R LBCL

    ZUMA-7

    Apr 2022

    Oct 2022

    3L+ R/R LBCL

    ZUMA-1

    Oct 2017

    Aug 2018

    3L R/R FL

    ZUMA-5

    Accelerated Mar 2021

    Jun 2022

    R/R MCL

    ZUMA-2

    Accelerated Jul 2020

    Conditional Dec 2020

    R/R adult ALL

    ZUMA-3

    Oct 2021

    Sep 2022

    Therapy





    1,973

    1,869

    1,459

    $432M Q325

    Revenue

    871

    -11%

    Q325 YoY

    Revenue

    607

    456

    264

    -11%

    7

    FY17 FY18 FY19 FY20 FY21 FY22 FY23 FY24

    Revenue ($M)

    Q325 QoQ

    Revenue



    Kite Global Leadership Enabled by Core Capabilities

    Kite has pioneered both CAR T development and approval, as well as established strengths in manufacturing reliability and clinical execution. Today, Kite remains at the forefront of Cell Therapy, supported by:

    • Strength of Our Data - overall survival benefit seen across 2L and 3L+ R/R LBCL. In addition, with more than 32,000 patients treated to date, Kite has the largest translational dataset in the industry, providing unique insights to develop the next generation therapies.

    • Comprehensive Network - with highly rated field teams, seamless end-to-end patient logistical support, and the largest ATC network globally.

    • Manufacturing Excellence - setting the standard for Cell Therapy, with 96% manufacturing success and 14 days average turnaround for Yescarta in the U.S.

    • Broad Research and Clinical Pipeline - advancing next generation constructs, technology, and targets across autologous, allogeneic and in vivo, as well as expansion into multiple myeloma and other hematologic malignancies, solid tumors, and autoimmune diseases.

    >573

    Global ATCs

    5

    Approved Indications

    >40

    Global Approvals

    >32K

    Patients

    B-ALL - B-cell acute lymphoblastic leukemia; FL - follicular lymphoma; LBCL - large B-cell lymphoma; MCL - mantle cell lymphoma; R/R - relapsed or refractory.

    Largest Cell Therapy Manufacturing Network in the World

    Maximizing the potential of cell therapy on a global scale requires a highly specialized and coordinated team that includes Kite's research and development, specialized manufacturing and supply chain, in addition to our Authorized Treatment Center partners.

    CAR T-cell therapy manufacturing is unique, with every manufacturing batch representing a single cell therapy designed for one patient. With some advanced and aggressive cancers, the patient's condition may rapidly deteriorate, so manufacturing quality, reliability, and speed are critical to patient outcomes.











    Collect Isolate Engineer Grow Infuse

    A patient's white blood cells are collected through an IV line at an ATC.

    The T-cells are isolated from the white blood cells and sent to a Kite facility.

    Kite adds the CAR gene to the T-cells to enable the cells to target the cancer.

    Kite grows the new CAR T-cells to create enough to fight the cancerous cells.

    New engineered CAR T-cells are sent to the ATC to be infused into the patient's bloodstream.

    >32,000 Patients Treated to Date, Supported by:

    96%

    Manufacturing success rate

    Quality, Speed, & Reliability

    14

    Days U.S. TAT for Yescarta

    Infrastructure Built for Growth

    Committed to Maintaining Manufacturing Leadership Through:

    • Further Automation - to enable greater capacity and cost efficiencies, including automation of manufacturing and quality control processes.

    • TAT Reduction - through manufacturing enhancements, the median TAT in the U.S. is now 14 days.

    • Novel CAR T Constructs - KITE-197 and KITE-753 are rapid manufacturing CAR Ts, designed to harvest a more naïve, less differentiated T-cell population.

Global Footprint to Expand CAR T Reach

>1M

Square feet of manufacturing and R&D space

>24K

Potential manufacturing capacity by 2026

Kite Manufacturing Countries with Kite ATCs







~80%

Target product gross margin in the U.S. by 2030

50%

Reduction in COGS¹ 2019-2023

Disciplined Cost Management

Opportunity to Grow CAR T Class Penetration

While more than 32,000 patients have been treated with a Kite cell therapy to date, there are many more patients globally that could benefit from cell therapy, including our CAR Ts, Yescarta and Tecartus.

CAR T Remains Under-utilized Today

Despite cell therapy offering durable responses and a potential one-time treatment for many patients in a challenging treatment landscape, class penetration as a whole is still low. Today in the U.S., just 2 in 10 second-line plus R/R LBCL eligible patients are receiving CAR T, with substantial numbers of eligible patients remaining unaddressed.

Indication

Product

2030 CAR T Population¹

3L R/R LBCL

Yescarta

13K

2L R/R LBCL

Yescarta

16K

3L+ FL

Yescarta

5K

2L MCL

Tecartus

4K

2L B-ALL

Tecartus

2K

1L HR LBCL2

Yescarta

17K

HR 2L+ FL2

Yescarta

3K

Lymphoma Treatment Landscape

In addition to CAR T, the lymphoma treatment paradigm includes stem cell transplant and targeted therapies + chemo, as well as ADCs and bispecific antibodies. In Cell Therapy, Kite's Yescarta and Tecartus have both demonstrated statistically significant overall survival rates following a one-time treatment (see box). We are confident that the deep and durable responses seen with our therapies, combined with the reliability of Kite's manufacturing, will ensure cell therapies remain compelling treatment options, including in earlier-line settings.

Expanding the Use of Cell Therapies Globally

Our work continues to expand the reach of Yescarta and Tecartus to more eligible patients. This includes:

  • Refreshed U.S. strategy includes: working with physicians and institutions to raise awareness of the curative potential of cell therapy and the strength of our data (see box); and ensuring access for those patients who could benefit from CAR T.

    COMPELLING OVERALL SURVIVAL DATA

    Yescarta is the first therapy to show a statistically significant OS benefit versus standard of care in 2L R/R LBCL in almost 30 years. Key survival data includes:

    • 2L R/R LBCL - In ZUMA-7, Yescarta demonstrated a 55% 4-year OS

    • 3L R/R LBCL - In ZUMA-1, Yescarta demonstrated a 43% 5-year OS

    • R/R NHL - In ZUMA-5, Yescarta demonstrated a 69% 5-year OS

    • R/R B-ALL - In ZUMA-3, Tecartus demonstrated a 40% 4-year OS

    • 1L HR LBCL - In ZUMA-12, Yescarta demonstrated an 81% 3-year OS²

  • Expanding into community practices where the majority (~80%) of lymphoma patients in the U.S. are treated today. We're making important in-roads with key community practices, and we are continuing to refine this "blueprint" as we work to onboard new centers and patients. Our work includes working with national payers to unlock broader commercial reimbursement.

  • Continuing to extend our reach into new geographies. Our revenue growth includes both new markets, such as Japan, Saudi Arabia, Brazil, and Singapore more recently, and expansions within existing markets such as in Europe.

1. 2030 eligible (on label) population in U.S, EU4, UK, and Japan. 2. The use of Yescarta in 1L HR LBCL, HR 2L+ FL is investigational and it has not been approved anywhere globally. B-ALL - adult B-cell acute lymphoblastic leukemia; FL - follicular lymphoma; HR - higher risk; LBCL - large B-cell lymphoma; MCL - mantle cell lymphoma; NHL - non-Hodgkin's lymphoma; OS - overall survival.

Unlocking the Full Potential of CAR T in Multiple Myeloma

In collaboration with Arcellx, Kite is co-developing and co-commercializing anito-cel, a differentiated and potentially best-in-class BCMA CAR T for use in multiple myeloma, addressing an underserved patient population.

The Multiple Myeloma Landscape

Multiple myeloma, arising from aberrant plasma cell expansion in the bone marrow, is among the most common forms of blood cancer. It is estimated that there are ~176K new cases globally of multiple myeloma reported each year¹. For newly diagnosed multiple myeloma patients, treatments include autologous stem cell transplant, chemotherapy, and combination therapies including proteasome inhibitors, immunomodulatory drugs, and anti-CD38 antibodies.

In addition, in the 2L+ R/R setting, there are a number of BCMA-targeted therapies, including bispecific antibodies and CAR Ts. B-cell maturation antigen (BCMA) has demonstrated highly selective expression on malignant plasma cells, with limited expression on other cells. Anito-cel (anitocabtagene autoleucel) is a novel BCMA-targeting CAR T currently in pivotal trials.

Anito-cel: Built with Uniquely Designed Domain Binder

D-Domain



Anito-cel uses a novel D-Domain binder, which is designed to optimize binding affinity. The D-Domain is a small, stable, fully synthetic antigen-binding domain with a hydrophobic core.

The Kite-Arcellx Collaboration

Based in Redwood City, California, Arcellx was founded in 2014, starting with the novel D-domain binder and lead clinical asset anito-cel. Kite and Arcellx entered into a collaboration agreement in 2022, partnering Arcellx's potentially best-in-class anito-cel, with its unique domain and overall construct, with Kite's globally-leading manufacturing, clinical, and commercial capabilities.

Gilead ownership of Arcellx is currently ~12%³.

Collaboration Milestones





December 2022 Partnership to co-develop and co-commercialize anito-cel

for R/R MM. Terms included:

$225M upfront, $100M equity,

LOW TOTAL CELL DOSE: Small D-Domain construct facilitates high transduction efficiency and CAR positivity, which permit a low total cell dose2.

LACK OF TONIC SIGNALING: Rapid folding, lack of disulfide bonds, and a hydrophobic core enables D-Domain stability and lack of tonic signaling.

OPTIMAL TUMOR CELL KILLING: The D-Domain has a fast off-rate and high CAR surface expression. This combination may allow optimal tumor cell killing without prolonged inflammation.

Combining the unique D-Domain binder with Kite's market leading manufacturing capabilities and commercial infrastructure, we believe anito-cel can offer a differentiated and potentially best-in-class multiple myeloma therapy.

shared development and commercialization costs, Kite responsible for manufacturing.

December 2023 ASH presentation of Phase 1 anito-cel data in 4L+ R/R MM, median follow-up of 26.5 months.

December 2024 Initial data from the pivotal Phase 2 iMMagine-1 trial in 4L+ R/R MM. Updated Phase 1 data at 38 months median follow-up.

November 2023 Partnership scope expanded to include lymphomas for anito-cel,

and option exercised to negotiate for ARC-SparX program, ACLX-001, in MM. Terms included:

$200M equity, $85M non-dilutive upfront.

August 2024

Arcellx receives $68M milestone payment in relation to iMMagine-1 enrollment.

October 2024

First patient dosed in Phase 3 iMMagine-3 trial in 2L+ R/R MM.

Anito-cel (anitocabtagene autoleucel) is an investigational product and has not been approved anywhere globally. Its safety and efficacy have not been established. 1. Huang, Junjie et al. The Lancet Haematology, Volume 9, Issue 9, e670 - e677. 2. Supported by preclinical and clinical translational data. 3. At June 30, 2025.

Anito-cel's Differentiated Profile

With 38 months follow-up from the Phase 1 study and supported by initial data from the Phase 2 iMMagine-1 study, we believe anito-cel has demonstrated a differentiated profile. We expect to launch anito-cel initially in 4L+ MM in 2026.

Compelling Data Across Phase 1 and 2 Trials Substantial Multiple Myeloma Opportunity

ASH 2024 ASH 2024

Trial Phase1 trial iMMagine-1

We believe the multiple myeloma market is sizeable, with sufficient opportunity for multiple CAR T treatment options. We estimate that the overall global total addressable market in 2L+ multiple myeloma is ~$12B for CAR T in 2030+.

Stage Phase 1 Phase 2

Size

n=38

n=86

Median Follow-Up

38.1 months

9.5 months

ORR

100%

97%

CR/sCR, n (%)

30 (79)

53 (62)

MRD evaluable, n

28

58

MRD negativity (10-⁵)

89%

93%

mPFS

30.2 months

Not reached

mOS

Not reached

Not reached

Given the capacity constraints and challenges in manufacturing speed and reliability by products available today, we believe there is significant opportunity for anito-cel given:

  • The unique D-Domain and overall construct

  • Its efficacy and safety profile seen to date

  • Kite's world leading manufacturing, clinical, and commercial capabilities

Data from the pivotal Phase 2 iMMagine-1 is expected to enable filing, and if successful, we expect to launch anito-cel in 4L+ R/R MM in 2026. Initial data from the trial was presented at

6-mo. PFS / OS

92% / 97%

93% / 97%

ASH 2024, and we expect to provide updated data in 2025. The Phase 3 iMMagine-3 trial in

12-mo. PFS / OS

76% / 95%

79% / 97%

2L+ R/R MM achieved FPI in October 2024, and we will share further updates when available.

18-mo. PFS / OS

65% / 82%

-

24-mo. PFS / OS

57% / 79%

-

30-mo. PFS / OS

50% / 75%

-

Advancing Anito-cel Manufacturing

The data across Phase 1 and 2 trials of anito-cel continue to indicate deep and durable responses. This includes in patients with high-risk features¹, such as in the Phase 1 trial where the 30-month PFS rate was 60% for this patient population. Adverse events in anito-cel trials were generally manageable. In addition, no delayed or non-ICANS neurotoxicities have been observed2 across all anito-cel trials and spanning >150 patients, including no Parkinsonism, no cranial nerve palsies, and no Guillain Barré syndrome.

The tech transfer from Arcellx was completed in Q224. We are working to launch anito-cel with a similar TAT as other Kite products, leveraging Kite's expertise in manufacturing excellence, which includes a 96% reliability rate across >27K cell therapy patients treated.

Anito-cel Mulitple Myeloma Clinical Pipeline

Indication

Trial Name

Stage

Status

4L+ R/R MM

Phase 1

Phase 1

Update provided at ASH 2024

4L+ R/R MM

iMMagine-1

Phase 2

Data at ASH 2024; update expected 2025

2L+ R/R MM

iMMagine-3

Phase 3

FPI achieved Q424

Anito-cel (anitocabtagene autoleucel) is an investigational product and has not been approved anywhere globally. Its safety and efficacy have not been established. 1. Defined as a patient with EMD (characterized by the presence of non-bone based plasmacytoma), ISS Stage III (B2M>/=5.5), high-risk cytogenetics (Del17p, t(14;16), or t(4;14)), or BMPC>/=60%. 2. At May 1, 2025. B2M - Beta-2-microglobulin; BMPC - bone marrow plasma-cell; EMD - extramedullary disease; FPI - first patient in (dosed); ISS - International Staging System; ORR - overall response rate; mDOR - median duration of response; mPFS -median progression-free survival; mOS - median overall survival; (s)CR: (stringent) complete response; VGPR: very good partial response; TAT - turnaround time, the time from date of leukapheresis to date of quality release of final product.

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Gilead Sciences Inc. published this content on October 30, 2025, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on October 30, 2025 at 22:05 UTC.