Seres Therapeutics, Inc. announced certain corporate changes to focus resources on its highest priority, clinical-stage microbiome therapeutic candidates. The Company will make changes to its executive team and reduce its full-time workforce by approximately 30 employees, and additional contractors, that in total represent approximately 30% of the workforce. The positions eliminated are primarily related to research, manufacturing, and general and administrative services. David Cook, Ph.D., Executive Vice President and Chief Scientific Officer, will transition from his current role with the Company and will continue to provide consulting services to Seres with a specific focus on immuno-oncology. Matthew Henn, Ph.D., previously Executive Vice President and Head of Discovery and Microbiome R&D, has been appointed Chief Scientific Officer. Dr. Henn joined Seres in 2012 and has contributed to the discovery and development of Seres’ microbiome therapeutic candidates. Prior to joining the Company, Dr. Henn served as the Director of Viral Genomics and Assistant Director of the Genome Sequencing Center for Infectious Diseases at the Broad Institute of MIT and Harvard University.