Corporate Governance - Biography

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William H. Rastetter, Ph.D.

William Rastetter has been a director since November 1998 and Chairman of the Board since January 2005. Rastetter has been serving as CEO and Executive Chairman of the Board of Receptos, Inc., a privately-held drug discovery and development company, which he co-founded, since 2009. Since August 2006, Rastetter has also been serving as a partner of Venrock Associates, a venture capital company. From 2007 to 2009, Rastetter was Chief Executive Officer and the Executive Chairman of Apoptos, Inc., a privately-held oncology research and development company, which was acquired by Receptos in 2009. Rastetter retired as the Executive Chairman of Biogen Idec Inc., a biopharmaceutical company, at the end of 2005. He had served in this position since the merger of Biogen, Inc. and IDEC Pharmaceuticals Corporation in 2003. He served as Chief Executive Officer of IDEC Pharmaceuticals, a biotechnology company, from 1986 to 2003 and as chairman of the Board of Directors from 1996 to 2003. Additionally, he served as President of IDEC Pharmaceuticals from 1986 to 2002, and as Chief Financial Officer from 1988 to 1993. From 1982 to 1986, Rastetter served in various positions at Genentech, Inc., a biotechnology company, and previously he was an associate professor at the Massachusetts Institute of Technology. Rastetter serves as a director of Neurocrine Biosciences, Inc., a biopharmaceutical company focused on neurological and endocrine diseases and disorders.

Rastetter holds a B.S. in Chemistry from the Massachusetts Institute of Technology and received his M.A. and Ph.D. in Chemistry from Harvard University.