Gilead Sciences, Inc. announced that Stacey Ma, PhD will join the company as Executive Vice President, Pharmaceutical Development and Manufacturing, and will become a member of the company's senior leadership team, reporting to Chairman and Chief Executive Officer Daniel O'Day. Dr. Ma will assume responsibility for Gilead's Pharmaceutical Development and Manufacturing organization effective July 18, 2022. Dr. Ma will succeed Dr. Yang, who is retiring from Gilead after nearly three decades.

Dr. Ma brings to her new role more than 25 years of experience in process, pharmaceutical and analytical development, quality, technical product and supply chain management, as well as global manufacturing operations. She joins Gilead from Sana Biotechnology, where she most recently served as Executive Vice President and Head of Technical Operations. Prior to Sana, Dr. Ma was the Global Head of Innovation, Manufacturing Science and Technology in Genentech/Roche's Pharma Technical Operations.

Dr. Ma holds a PhD in chemical engineering from Yale University. She is an American Institute for Medical and Biological Engineering (AIMBE) fellow and has co-chaired many international scientific conferences and workshops related to Chemical, Manufacturing and Controls (CMC) development strategies, including several co-sponsored by the U.S. Food and Drug Administration, European Medicines Agency and China's National Medical Products Administration. Dr. Yang joined Gilead in 1993 and became Senior Vice President of Pharmaceutical Development and Manufacturing in 2005.

In 2015, she was appointed to her current role as Executive Vice President, Pharmaceutical Development and Manufacturing, with responsibility for all the company's investigational compounds and marketed products. Under her leadership, Gilead developed the world's first HIV single tablet regimen and advanced more than 25 compounds from early-stage development to market, reaching millions of people around the world.