Seres Therapeutics, Inc. announced that it has appointed Paul Biondi, Executive Partner at Flagship Pioneering, to its Board of Directors. Prior to joining Flagship, Mr. Biondi had a 17-year tenure at Bristol-Myers Squibb, most recently as Senior Vice President of Strategy and Business Development. Previously, he held a series of leadership roles within BMS’s R&D organization overseeing strategy, portfolio and project management and clinical and business operations. Noubar Afeyan, a co-founder of Seres and Chief Executive Officer of Flagship Pioneering, is stepping down after serving on the Board since the Company’s founding.