John Maraganore, PhD
John Maraganore, PhD, serves as the Chair of Hemab’s Board of Directors. In his nearly 20-year tenure as the founding CEO of Alnylam, he steered the company’s efforts to pioneer RNA interference (RNAi) therapeutics, raising over $7 billion to fund its programs and establishing partnerships with more than 25 of the leading pharmaceutical and biotechnology companies. As inventor of bivalirudin, a direct-acting thrombin inhibitor later commercialized as ANGIOMAX™, and formative contributor to Fitusiran, an RNAi therapeutic targeting antithrombin for the treatment of hemophilia A or B, he has deep knowledge of thrombosis and hemostasis research and development. He has a PhD in Biochemistry and Molecular Biology from the University of Chicago, United States.

Meet the Team
Hemab unites experts in clotting, patient care, and drug development to transform the lives of people with bleeding disorders









