Where is Gilead Sciences headquartered?

The global headquarters is in Foster City, California. Gilead operates in more than 35 countries, with sites that include Pasadena, Washington DC, Miami, Uxbridge and London in England, Cork, Amsterdam, Madrid, Vienna, Toronto and Shanghai.

Who runs Gilead Sciences?

Daniel O'Day is Chairman and Chief Executive Officer, holding both roles together. Andrew Dickinson is Chief Financial Officer, Johanna Mercier is Chief Commercial & Corporate Affairs Officer and Dietmar Berger is Chief Medical Officer.

How many people work at Gilead Sciences?

Gilead says more than 17,000 people work there. Other sources round it to 17,000, and LinkedIn lists roughly 14,793 profiles, which is normally lower than headcount because not every employee has a profile.

Is Gilead Sciences a public company?

Yes. It trades on Nasdaq under the ticker GILD and is a component of the S&P 500 and the Nasdaq-100. Market capitalization was about $161.83 billion as of July 22, 2026, and it moves daily.

What is the Gilead Sciences interview process like?

Candidates reporting on Indeed rate the experience 8 out of 10 favorable and the difficulty medium at 6 out of 10, based on roughly 227 responses. Most people finish within about a week, though 24% say it takes about a month and 15% say longer.

How much does Gilead Sciences pay in the US?

Reported averages on Indeed run from about $87,583 a year for a Research Associate to $207,984 for a Principal Scientist, with Director level roles around $255,573 and Executive Director around $339,507. These are single reported averages from small samples, not published bands, so treat them as indicative.

What benefits does Gilead Sciences offer?

Gilead's US total rewards include a 401(k) match up to $15,000 a year that vests immediately, an employee stock purchase plan at a minimum 15 percent discount, RSU grants vesting over four years, 15 to 25 days of vacation depending on service, 13 paid holidays, 12 weeks of paid parental time off and up to $5,250 a year in tuition reimbursement.

Gilead Sciences Careers

Nasdaq listed biopharmaceutical company in Foster City building antiviral, oncology and inflammation medicines

gilead.com

About the company

Legal name

Gilead Sciences, Inc.

Founded

June 22, 1987 (founder Michael L. Riordan)

Headquarters

Foster City, California, United States

Industry

Biopharmaceuticals (virology, oncology, inflammation)

Employees

More than 17,000

CEO

Daniel O'Day, Chairman and Chief Executive Officer

CFO

Andrew Dickinson, Chief Financial Officer

Revenue (FY25)

$29.44 billion

Market Cap

$161.83 billion (as of July 22, 2026)

Listed on

Nasdaq: GILD

Gilead Sciences, Inc. is a US biopharmaceutical company founded on June 22, 1987 by Michael L. Riordan and headquartered in Foster City, California. It trades on Nasdaq under the ticker GILD and is a component of the S&P 500 and Nasdaq-100. The company describes its mission as discovering, developing and delivering innovative therapeutics for people with life threatening diseases.

The business is built around three therapeutic areas: virology, oncology and inflammation. Gilead is best known for its HIV franchise, which includes Biktarvy and Descovy, and it has expanded into cell therapy through Kite and into antibody drug conjugates with Trodelvy. In June 2026 the FDA approved Trodelvy for first line treatment of metastatic triple negative breast cancer, and Gilead and Merck reported positive Phase 3 data in July 2026 for a once weekly oral HIV regimen combining lenacapavir and islatravir.

Gilead employs more than 17,000 people and operates in over 35 countries. Reported revenue was $29.44 billion for fiscal 2025, and market capitalization stood at about $161.8 billion in late July 2026. First quarter 2026 revenue reached $7.0 billion, up 4% year over year, with total HIV sales up 10% to $5.0 billion. The company has been actively acquiring, closing the $7.8 billion Arcellx deal in April 2026 and agreeing to buy German ADC developer Tubulis for $3.15 billion upfront.

Key People

Daniel O'Day

Chairman and Chief Executive Officer

Andrew Dickinson

Chief Financial Officer

Johanna Mercier

Chief Commercial & Corporate Affairs Officer

Dietmar Berger

Chief Medical Officer

Interview process at Gilead Sciences

(Based on 227 interview responses)

Interview experience

8/10 favorable

Interview difficulty

Medium, 6/10

Interview process length

About a week for most candidates

Overall experience

PoorExcellent

EasyDifficult

How long the process takes

About a day or two12%

About a week49%

About a month24%

More than one month15%

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Gilead Sciences Salaries in United States (Updated 2026)

Research Associate

Reported average

$87,583/yr

6 salaries reported Salaries submitted

Senior Research Associate

Reported average

$109,476/yr

19 salaries reported Salaries submitted

Associate Scientist

Reported average

$133,035/yr

14 salaries reported Salaries submitted

Clinical Trial Manager

Reported average

$154,246/yr

10 salaries reported Salaries submitted

Research Scientist

Reported average

$158,592/yr

14 salaries reported Salaries submitted

Senior Scientist

Reported average

$190,520/yr

10 salaries reported Salaries submitted