William Ringo
Chairman of the Board

William Ringo has served as a member of our Board since June 2002 and as Chairman of the Board since May 2003. Mr. Ringo is the former President and Chief Executive Officer of Abgenix, Inc. From June 2003 to September 2003, Mr. Ringo served as the interim President and Chief Executive Officer of InterMune. Before Abgenix, Mr. Ringo was with Eli Lilly & Company from 1973 and served in various capacities including Product Group President, Oncology and Critical Care Products from June 1999 until his retirement in February 2001; President of Internal Medicine Products from January 1998 until June 1999; and President of Eli Lilly's Infectious Diseases Business Unit from September 1995 until January 1998. Mr. Ringo is a member of the Board of Directors of Inspire Pharmaceuticals. Mr. Ringo is also a member, and past Chairman, of the Board of Directors at Community Hospitals of Indianapolis. Mr. Ringo holds a B.S. and an M.B.A. from the University of Dayton. Mr. Ringo serves as an Executive-in-Residence with Sofinnova Ventures.