People: Rigel Pharmaceuticals Inc (RIGL.O)

Donald G. Payan, M.D., one of the co-founders of Rigel Pharmaceuticals, has been a member of the company's Board of Directors since July 1996 and has served as Executive Vice President and Chief Scientific Officer since January 1997. In February 2008, Dr. Payan became Executive Vice President, President of Discovery and Research. From January 1997 to July 1998, he also served as Chief Operating Officer. From July 1996 to January 1997, Dr. Payan served as President and Chief Executive Officer. From December 1995 to May 1996, Dr. Payan was Vice President of AxyS Pharmaceuticals, Inc., a biopharmaceutical company. From September 1993 to December 1995, Dr. Payan was Executive Vice President and Chief Scientific Officer of Khepri Pharmaceuticals, Inc., which he founded and subsequently merged with AxyS Pharmaceuticals. Dr. Payan did his residency training in Medicine at the Massachusetts General Hospital, and is a former Professor at the University of California, San Francisco and member of The Howard Hughes Medical Institute.