- CEO
- Daniel O'Day
- Full Time Employees
- 17,600
- Sector
- Healthcare
- Industry
- Biotechnology
- Address
- 333 Lakeside Drive Foster City CA United States of America 94404
- IPO Date
- Jan 22, 1992
- Business
- Gilead Sciences, Inc. (Nasdaq: GILD) is a biopharmaceutical company focused on researching, developing and commercializing innovative therapeutics for life-threatening diseases in virology, oncology and inflammation. The company offers a broad portfolio of products including antiviral treatments for HIV/AIDS such as Biktarvy, Descovy, Truvada (as pre-exposure prophylaxis or PrEP), Genvoya and Trospium; therapies for viral hepatitis such as Veklury (remdesivir) for COVID-19, Vemlidy and Viread; oncology offerings like Yescarta and Tecartus (CAR T-cell therapies), Trodelvy (for breast cancer) and Zepzelca; and Livdelzi (seladelpar) for primary biliary cholangitis; as well as investigational candidates across small molecules, biologics and antibody-drug conjugates. Gilead Sciences operates in more than 35 countries worldwide, with manufacturing and research facilities in the United States (including California, Connecticut and Washington), Canada and the Asia-Pacific region (Australia, China, Japan and Korea). Founded in 1987 and headquartered in Foster City, California, the company employs over 17,000 people and maintains a robust pipeline of more than 55 clinical programs. Recent developments include the March 2024 acquisition of CymaBay Therapeutics for $4.3 billion, adding seladelpar (branded Livdelzi) following FDA accelerated approval in August 2024; a January 2025 strategic partnership with LEO Pharma acquiring preclinical oral STAT6 inhibitors and targeted protein degraders for inflammatory diseases, with Gilead securing exclusive global rights to oral programs for up to $1.7 billion; collaborations with Terray Therapeutics and Tubulis on small-molecule and antibody-drug conjugate therapies; a $32 billion U.S. expansion announced in 2025 featuring a new Pharmaceutical Development and Manufacturing Technical Development Center in Foster City, three new facilities and upgrades to enhance AI-driven drug discovery, biologics capacity and localized manufacturing while creating 800 domestic jobs by 2028; and the opening of its first international research lab in Oxford, England, in 2024.