On August 26, 2023, the Board of Directors of Omega Therapeutics, Inc. elected Michelle C. Werner as a Class I director of the Company and appointed Ms. Werner as a member of the Board?s Nominating and Corporate Governance Committee, effective August 28, 2023. On the Effective Date, Noubar B. Afeyan, Ph.D., submitted his resignation as a member of and Chair of the Board.