On September 10, 2020, the Board of Unity Biotechnology, Inc. appointed Alexander Azoy, the Company’s Vice President of Finance, Chief Accounting Officer, as the principal accounting officer, effective immediately. Mr. Azoy has served as the Company’s Vice President of Finance, Controller since February 2020. Prior to joining the Company, Mr. Azoy held various roles at Sienna Biopharmaceuticals, Inc., from December 2017 to December 2019, most recently as Chief Financial Officer, where he oversaw finance operations.