Gilead Sciences Inc - Company Profile

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Gilead Sciences Inc: Executives

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The following section provides information on Gilead Sciences Inc’s senior management, executives, CEO and key decision makers and their roles in the organization. For more insight into Gilead Sciences Inc's management and employees, unlock the full data with our company analytics monitoring tool.

Executives

Daniel P. O’Day

Chairman; Chief Executive Officer Executive Board Since: 2019 Age: 61

Mr. Daniel P. O’Day has been the Chairman and Chief Executive Officer of the company since 2019. Prior to this, he served as the Chief Executive Officer of Roche Pharmaceuticals. Mr. O’Day held a number of executive positions in the company’s pharmaceutical and diagnostics divisions in North America, Europe and Asia.

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Andrew D. Dickinson

Chief Financial Officer Senior Management Since: 2016 Age: 56

Mr. Andrew D. Dickinson has been the Chief Financial Officer of the company since 2016. Prior to this, he served as the Head of the company’s Corporate Development and Strategy Group. Mr. Dickinson also served as the Co-Head of Healthcare Investment Banking at Lazard, General Counsel and Vice President of Corporate Development at Myogen, Inc.

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Dietmar Berger, M.D, Ph.D

Chief Medical Officer Senior Management Since: 2025 Age: 63

Dr. Dietmar Berger has been the Chief Medical Officer of the company since 2025. Prior to this, he served as the Senior Vice President and Global Head of Development at Sanofi and as Executive Vice President and Global Head of Research & Development at Atara Biotherapeutics. Dr. Berger has also served in various medical affairs roles at Genentech, Bayer Healthcare Pharmaceuticals, and Amgen.

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Johanna Mercier

Chief Commercial Officer Senior Management Since: 2019 Age: 56

Ms. Johanna Mercier has been the Chief Commercial Officer of the company since 2019. Prior to this, she held a number of executive leadership positions at Bristol-Myers Squibb. She currently serves on the Board of Directors of Neurocrine Biosciences Inc and the University of Southern California's Leonard D. Schaeffer Center for Health Policy and Economics.

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Jyoti Mehra

Executive Vice President - Human Resources Senior Management Since: 2019
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