Seres Therapeutics names co-CEOs as current chief executive steps down

Go back to Seres Therapeutics names co-CEOs as current chief executive steps down

Seres Therapeutics Announces Leadership Transition

July 22, 2025 7:00 AM EDT

Thomas DesRosier and Marella Thorell, accomplished biopharma executives, appointed co-CEOs; Eric Shaff stepping down as CEO and will remain a Director on the Seres Board

Seres engaging with multiple parties regarding various deal structures, including potential business development and partnerships, intended to secure additional capital and other resources to enable the clinical advancement of SER-155 and additional live biotherapeutic product candidates

CAMBRIDGE, Mass., July 22, 2025 (GLOBE NEWSWIRE) -- Seres Therapeutics, Inc. (Nasdaq: MCRB), (Seres or the Company), a leading live biotherapeutics company, today announced the appointment of... More