John Weidenbruch has more than twenty years of legal affairs and policy experience in the biotechnology industry. Prior to joining Visterra, Mr. Weidenbruch was at Biogen, Inc., where he served as Vice President, Chief Global Commercial Counsel. Prior to Biogen, he was Executive Vice President, General Counsel, Corporate Secretary, and Chief Compliance Officer at Idenix Pharmaceuticals, Inc., a public biopharmaceutical company. Prior to Idenix, Mr. Weidenbruch was General Counsel at Abraxis BioScience Inc. Earlier in his career, he spent more than ten years at Amgen, Inc., where he held positions of increasing responsibility in the legal and healthcare policy departments. Mr. Weidenbruch has a BA from Loyola College and a J.D. from Georgetown University Law Center.