Arthur T. Sands, M.D., Ph.D., has served as our Chief Executive Officer and a member of our Board of Directors since September 2014. Prior to joining us, Dr. Sands was the co-founder and served as President, Chief Executive Officer, and member of the board of directors of Lexicon Pharmaceuticals, a biopharmaceutical company focused on target validation and pharmaceutical development, from 1995 to July 2014. Before founding Lexicon Pharmaceuticals, Dr. Sands served as an American Cancer Society postdoctoral fellow in the Department of Human and Molecular Genetics at Baylor College of Medicine. Dr. Sands holds a B.A. in Economics and Political Science from Yale University and an M.D. and a Ph.D. in Cell Biology from Baylor College of Medicine. We believe Dr. Sands is qualified to serve on our Board of Directors due to his leadership experience gained from serving as our Chief Executive Officer, his scientific and medical training, and his extensive experience in the life sciences industry.