Independent Director Director Since: 2020 Age: 68 Committee Service: Audit Nominating and Corporate Governance (Chair) Professional Experience: Chairman, Vividion Therapeutics, Inc. (2023-present), formerly Chief Executive Officer, (2020 2023) Chief Executive Officer, Zafgen, Inc. (2017 2020) President and Chief Executive Officer, Vitae Pharmaceuticals, Inc. (2004 2016) Senior Vice President of Immunology and Virology, B ristol-Myers Squibb Company (2000 2004), and preceded by various positions of increasing responsibility (1995 2000) Education: B.S., Pharmacy, Purdue University s College of Pharmacy MBA, The Wharton School at the University of Pennsylvania Other Public Company Boards aTyr Pharma, Inc. (2017 2021) MiRagen Therapeutics, Inc. (Chairman) (2017 2021) (now Viridian Therapeutics, Inc.) Zafgen, Inc. (2017 2020) (now Larimar Therapeutics, Inc.) InVivo Therapeutics, Inc. (2016 2018) Vitae Pharmaceuticals, Inc. (2004 2016) Ambit Biosciences Corp. (2014) Other Affiliations: Service on the boards of directors for private biotechnology companies, including: ROME Therapeutics, Inc. (Chairman); and Gate Bioscience, Inc. The Nominating and Corporate Governance Committee and Board believe Mr. Hatfield is qualified to serve on the Board due to his extensive experience as an executive officer and board member of numerous biotechnology companies.