John A. Scarlett

John A. Scarlett, M.D., has served as the Chairman of the Board of Geron Corporation since December 2018, Chief Executive Officer and a director since joining Geron in September 2011, and President since January 2012. Dr. Scarlett also serves as a member of the boards of directors for Chiasma, Inc. since February 2015, until its acquisition by Amryt Pharma in August 2021, and CytomX Therapeutics, Inc. since June 2016. Prior to joining Geron, Dr. Scarlett served as President, Chief Executive Officer and a member of the board of directors of Proteolix, Inc. from February 2009 until its acquisition by Onyx Pharmaceuticals, Inc. in November 2009. From February 2002 until its acquisition by Ipsen, S.A. in October 2008, Dr. Scarlett served as the Chief Executive Officer and a member of the board of directors of Tercica, Inc. and also as its President from February 2002 through February 2007. From March 1993 to May 2001, Dr. Scarlett served as President and Chief Executive Officer of Sensus Drug Development Corporation. In 1995, he co-founded Covance Biotechnology Services, Inc. and served as a member of its board of directors from inception to 2000. From 1991 to 1993, Dr. Scarlett headed the North American Clinical Development Center and served as Senior Vice President of Medical and Scientific Affairs at Novo Nordisk Pharmaceuticals, Inc., a wholly owned subsidiary of Novo Nordisk A/S. Dr. Scarlett received his B.A. degree in chemistry from Earlham College and his M.D. from the University of Chicago, Pritzker School of Medicine.