Jason O’Byrne, MBA

Executive Vice President and Chief Financial Officer

Jason O’Byrne has served as Executive Vice President and Chief Financial Officer (CFO) since October 2024. Mr. O’Byrne leads the finance, investor relations, operations and IT organizations. He has spent over 20 years in finance and operations with demonstrated effective financial leadership in capital allocation and formation, corporate strategy, and operational execution.

Prior to joining Vir, Mr. O’Byrne served as CFO at Caribou Biosciences where he led finance, investor relations, corporate communications, IT and the operations functions. He also led multiple capital formation initiatives, including the 2021 IPO and 2023 follow-on offering. Previously, Mr. O’Byrne served as Senior Vice President of Finance at Audentes Therapeutics. While at Audentes, Mr. O’Byrne oversaw the financial due diligence and integration related to the company’s $3Bn acquisition by Astellas Pharma in 2020. Earlier in his career, Mr. O’Byrne held roles of increasing responsibility and geographical reach at Genentech/Roche. Over a 13-year period he built broad operational finance expertise across manufacturing, research, clinical development, business development and commercialization. During his Genentech/Roche tenure, he served as Regional Head of Commercial Finance for APAC and Global Head of Finance for Product Development.

Mr. O’Byrne holds an MBA in Finance from the New York University Stern School of Business and a Bachelor of Applied Science in Mechanical Engineering from the University of British Columbia.