Alfred W. Sandrock, Jr., M.D., Ph.D., is Executive Vice President, Research & Development at Biogen and has served on the Executive Committee since 2015. He has served as the head of Research & Development since October 2019 and was our Chief Medical Officer from 2012 until January 2020. Since joining the company in 1998, he has held several senior executive positions, including Senior Vice President of Development Sciences, Senior Vice President of Neurology Research and Development, and Vice President of Clinical Development, Neurology. Dr. Sandrock received his B.A. in human biology from Stanford University, an M.D. from Harvard Medical School, and a Ph.D. in neurobiology from Harvard University. He completed an internship in medicine, a residency and chief residency in neurology, and a clinical fellowship in Neuromuscular Disease and Clinical Neurophysiology (electromyography) at Massachusetts General Hospital.