Board of Directors

Daniel G. Welch

Executive Partner, Sofinnova Ventures

Chairman

Mr. Welch joined Ultragenyx as a board member in April 2015. Mr. Welch is currently an Executive Partner at Sofinnova Ventures. Prior to Sofinnova, Mr. Welch served as Chairman, Chief Executive Officer and President of InterMune from May 2008 to October 2014 and served as President and Chief Executive Officer of the Company and a member of the Board from September 2003 to May 2008. From August 2002 to January 2003, Mr. Welch served as Chairman and Chief Executive Officer of Triangle Pharmaceuticals, Inc. From October 2000 to June 2002, Mr. Welch served as president of the pharmaceutical division of Elan Corporation, PLC. Mr. Welch currently serves on the boards of directors of Seattle Genetics and Hyperion Therapeutics. Mr. Welch holds a B.S. from the University of Miami and an M.B.A. from the University of North Carolina.