Michael M. Morrissey, Ph.D.

President and Chief Executive Officer

Michael M. Morrissey, Ph.D. has served as a director and as Exelixis’ President and Chief Executive Officer since July 2010. Dr. Morrissey has held positions of increasing responsibility at Exelixis since he joined the company in February 2000. From January 2007 until July 2010, he served as President of Research and Development, from January 2006 until December 2006, he served as Executive Vice President, Discovery, from January 2003 to December 2005, he served as Senior Vice President, Discovery, and from February 2000 through December 2002, he served as Vice President of Discovery Research. From 1991 to 2000, Dr. Morrissey held several positions at Berlex Biosciences, last holding the position of Vice President, Discovery Research. From 1986 to 1991, he served as a Senior Scientist and Project Team Leader in Medicinal Chemistry at CIBA-Geigy Corporation, a pharmaceutical company. He is the author of numerous scientific publications in medicinal chemistry and drug discovery and an inventor on 70 issued U.S. patents and 25 additional published U.S. patent applications. Dr. Morrissey holds a B.S. (Honors) in Chemistry from the University of Wisconsin and a Ph.D. in Chemistry from Harvard University.