David Lacey, M.D. has served as a member of the Board since May 2020. From 1994 until his retirement in 2011, Dr. Lacey held various positions at Amgen Inc. (Nasdaq: AMGN), including Senior Vice President of Discovery Research. By the end of his tenure, he oversaw a research organization of approximately 1200 employees, encompassing four broad therapeutic areas: Inflammation, Oncology, Metabolic Disorders and Neurosciences that utilized both large and small molecules to interdict validated targets across these focus areas. Kepivance, Prolia, Xgeva, and Repatha were among a number of drugs that emerged from Amgen laboratories while under his supervision. Since July 2011, Dr. Lacey has provided services as a biopharmaceutical consultant to a number of private companies, academic institutions and venture capital firms through his company, David L. Lacey LLC. He currently serves on the board of directors of Nurix, Inc. (Nasdaq: NRIX) and Inbiomotion SL. Previously, Dr. Lacey served on the boards of directors of Argenx SE (Nasdaq: ARGX) from July 2014 until May 2021, Atreca, Inc. (Nasdaq: BCEL) from August 2015 to March 2024, and UNITY Biotechnology, Inc. (Nasdaq: UBX) from February 2018 to December 2020. He obtained both his B.A. in Biology and M.D. from the University of Colorado and received his formal training in Anatomic Pathology at Washington University in St. Louis, Missouri. We believe Dr. Lacey is able to make valuable contributions to the Board due to his extensive experience in drug discovery and management of large research organizations.