Douglas Treco, Ph.D., has served as the chairman of our board of directors since May 2020. Dr. Treco co-founded RA Pharmaceuticals, Inc., or RA Pharma, a pharmaceutical company, in 2008, which was acquired by UCB S.A. in April 2020. He has served as the president and chief executive officer of Ra Pharma since June 2008. Dr. Treco served as an entrepreneur-in-residence with Morgenthaler Ventures, a venture capital firm, from January 2008 to May 2014. Dr. Treco served as a visiting scientist in the Department of Molecular Biology at Massachusetts General Hospital and as a lecturer in genetics at Harvard Medical School from 2004 to 2007. Dr. Treco currently serves on the board of directors of CRISPR Therapeutics AG and served on the board of directors of Ra Pharma from June 2008 to April 2020. Dr. Treco received a B.A. in Biology from the University of Delaware and a Ph.D. in biochemistry and molecular biology from the State University of New York, Stony Brook, and performed post-doctoral research at the Salk Institute for Biological Studies and Massachusetts General Hospital.