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.  From January 2007 through July 2010, he served as President of Research and Development. Previously, Dr. Morrissey served as the Company's Executive Vice President, Discovery (January 2006 -December 2006), Senior Vice President, Discovery (January 2003 - December 2005) and Vice President of Discovery Research (February 2000 - December 2002). 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, Dr. Morrissey 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.