John F. Milligan
John F. Milligan is an American former executive who was the CEO of Gilead Sciences, a biotechnology company based in the United States from 2016 to 2019. He was previously appointed President of the company and had maintained that role since May 2008. He held various other positions during his tenure with Gilead including COO and CFO and originally joined the biotechnology company in 1990 as a research scientist. He was the 32nd employee hired by the company. Milligan became CEO when former CEO John C. Martin was appointed as Executive Chairman.