Leadership

Paul Klingenstein
Director

Paul Klingenstein has served as a member of our board of directors since our inception. He is the Managing Partner
of Aberdare Ventures, a healthcare-focused venture capital firm he formed in 1999. Prior to founding Aberdare,
Mr. Klingenstein worked in venture capital and private equity with Warburg Pincus and Accel Partners, and was an advisor to the Rockefeller Foundation. Mr. Klingenstein currently serves on the boards of Anacor Pharmaceuticals, Inc. (NASDAQ: ANAC) and EnteroMedics, Inc. (NASDAQ: ETRM). Mr. Klingenstein has previously served on the boards of Ablation Frontiers, Inc., Alibris, Ample Medical Corporation, Aviron, Conatus Pharmaceuticals Inc., EP Technologies, Glycomed Inc., Idun Pharmaceuticals Inc., Isis Pharmaceuticals, Inc. (NASDAQ: ISIS), Nevro Corp., Pharmion Corp., Posit Science Corporation, U.S. Behavioral Health, VertiFlex Inc., Viagene Inc., and Xomed Surgical Products Inc. He is currently the Chairman of the Board of the International AIDS Vaccine Initiative, and is an advisory board member of the University of California Berkeley School of Public Health. He has also served on the boards of various educational and non-profit institutions. Mr. Klingenstein received an A.B. in anthropology from Harvard University and an M.B.A. from Stanford University. We believe that Mr. Klingenstein possesses specific attributes that qualify him to serve as a member of our board of directors, including his experience in the venture capital industry and his years of business and leadership experience.