Seres Therapeutics, Inc. announced the appointment of Eric D. Shaff as president and chief executive officer. Mr. Shaff, who is currently chief operating and financial officer, succeeds Roger J. Pomerantz, M.D. Mr. Shaff has also joined Seres' Board of Directors and will continue to serve as Seres' principal financial officer on an interim basis. Dr. Pomerantz will continue as Chairman of Seres' Board of Directors.

Mr. Shaff has served as Seres' Chief Financial Officer, Executive Vice President and Treasurer since November 2014, and in January 2018, he was appointed to the additional role of Chief Operating Officer. Mr. Shaff also serves on the Board of Directors for Sigilon Therapeutics and has extensive experience in the biotechnology field, having worked at Momenta Pharmaceuticals and Genzyme Corporation, where he was Vice President of Finance for the Personalized Genetic Health division.