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Patrick J. Mahaffy

President and Chief Executive Officer; Director

Patrick J. Mahaffy is one of our co-founders and has served as our President and Chief Executive Officer and a member of our board of directors since our inception. Previously, Mr. Mahaffy served as President and Chief Executive Officer and as a member of the board of directors at Pharmion Corporation, which he founded in 2000 and sold to Celgene Corporation in 2008. From 1992 through 1998, Mr. Mahaffy was President and Chief Executive Officer of NeXagen, Inc. and its successor, NeXstar Pharmaceuticals, Inc., a biopharmaceutical company. Prior to that, Mr. Mahaffy was a Vice President at the private equity firm E.M. Warburg Pincus and Co. Mr. Mahaffy also serves on the boards of directors of Orexigen Therapeutics, Inc. (NASDAQ: OREX) and Flexion Therapeutics, Inc. (NASDAQ: FLXN). He is also a trustee of Lewis and Clark College. Mr. Mahaffy has a B.A. in international affairs from Lewis and Clark College and a M.A. in international affairs from Columbia University.