• Geoff McDonough, MD to step down as CEO & President and become Chair of the Company’s Board of Directors • Current Chief Legal Officer Yalonda Howze, JD named Interim CEO & President CAMBRIDGE, MASS., Oct. 22, 2025 (GLOBE NEWSWIRE) -- Generation Bio Co. (Nasdaq: GBIO), a biotechnology company working to change what’s possible for people living with T cell-driven autoimmune diseases, today announced that Geoff McDonough, MD will step down as Chief Executive Officer and President, and will Chair the company ...