Willard H. Dere, M.D. has served on our Board of Directors since November 2014, and is also a member of the Board of Directors of BioMarin Pharmaceutical Inc., Mersana Therapeutics, Inc., and Seres Therapeutics, Inc. Dr. Dere has served as the Professor of Internal Medicine; B. Lue and Hope S. Bettilyon Presidential Endowed Chair in Internal Medicine for Diabetes Research, Executive Director of Personalized Health, and Co-Principal Investigator of the Center for Clinical and Translational Science at the University of Utah Health Sciences Center since November 2014. Prior to that, he served at Amgen Inc., a biopharmaceutical company, as the Senior Vice President, Global Development from December 2004 to June 2007, and from April 2014 to October 2014, and as International Chief Medical Officer from January 2007 to April 2014. Before he joined Amgen in 2003, Dr. Dere served as Vice President of Endocrine, Bone and General Medicine Research and Development at Eli Lilly and Company, a biopharmaceutical company, where he also held various other roles in clinical pharmacology, regulatory affairs, and both early-stage translational, and late-stage clinical research. Dr. Dere received B.A. degrees in history and zoology and a M.D. degree from the University of California, Davis. We believe Dr. Dere is qualified to serve as a member of our Board of Directors because of his strong medical background and extensive experience in the pharmaceutical industry.