John A. Scarlett, M.D.

Prior to joining Geron, Dr. Scarlett served as a director of CytomX Therapeutics, Inc., a biopharmaceutical company focused on developing antibody therapeutics for the treatment of cancer, from June 2016 to June 2022. He was also a director for Chiasma, Inc., a biopharmaceutical company focused on transforming injectable drugs into oral medications, from February 2015 until its acquisition by Amyrt Pharma plc, a biopharmaceutical company, in August 2021. Dr. Scarlett served as President, Chief Executive Officer and a member of the board of directors of Proteolix, Inc., a privately held, oncology-oriented biopharmaceutical company, from February 2009 until its acquisition by Onyx Pharmaceuticals, Inc., an oncology-oriented biopharmaceutical company, 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., an endocrinology-oriented biopharmaceutical company, and as its President from February 2002 through February 2007.