GILD SEC filings last scanned 22 Aug 2026, 16:41 UTC
CEO Timeline
Daniel O'DayCurrent
Mar 2019 — Present(7y 6mo)
Daniel O'Day was appointed Chief Executive Officer of Gilead Sciences, effective March 1, 2019, succeeding John F. Milligan who stepped down on December 31, 2018.
3 source filings — click to expand
Gregg AltonInterim
Jan 2019 — Mar 2019(2mo)
Gregg Alton was appointed interim Chief Executive Officer of Gilead Sciences for the period from January 1, 2019 to March 1, 2019, between the departure of John F. Milligan and the arrival of Daniel O'Day.
1 source filing — click to expand
John F. Milligan, Ph.D.
Mar 2016 — Dec 2018(2y 9mo)
John F. Milligan was appointed President and Chief Executive Officer of Gilead Sciences, Inc., succeeding John C. Martin who became Executive Chairman.
stepped down as previously announced
3 source filings — click to expand
John C. Martin
Apr 1996 — Mar 2016(19y 11mo)
John C. Martin was appointed Chief Executive Officer of Gilead Sciences, a position he has held since April 1996.