On December 11, 2020, Rhythm Pharmaceuticals, Inc. appointed Lynn A. Tetrault and Camille L. Bedrosian, M.D. as directors of the Company. At the time of that filing, the Board had not determined on which Board committees Ms. Tetrault or Dr. Bedrosian would serve. On December 31, 2020, the Board appointed Ms. Tetrault to the Compensation Committee of the Board, and Dr. Bedrosian to the Governance and Nominating Committee of the Board.