Andrea Pfeifer ends 23-year reign at AC Immune; Acadia's top R&D exec announces retirement

May 15, 2026 07:00 AM EDT Peer Review An­drea Pfeifer ends 23-year reign at AC Im­mune; Aca­di­a's top R&D ex­ec an­nounces re­tire­ment Alex Hoffman Copy Chief Max Gelman Senior Editor Kyle LaHucik Biotech Correspondent AC Im­mune will be search­ing for a new CEO for the first time, as the com­pa­ny an­nounced this week that An­drea Pfeifer Sign up to read this article for free. Get free access to a limited number of articles, plus choose newsletters to get straight to your inbox. SIGN UP LOG IN BECOME A PREMIUM SUBSCRIBER