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Kathy Biberstein

Executive Partner and General Counsel

Kathy Biberstein joined Flagship Pioneering in 2021, as Executive Partner and General Counsel. In this capacity, Kathy oversees legal, corporate, IP, compliance, and related matters for Flagship Pioneering and its current family of internally operated companies.

Kathy brings years of extensive legal, policy, and operations expertise in the global biopharma industry to this role. She most recently served as Executive Vice President, Chief Administrative & Legal Officer, Chief Compliance & Risk Officer, and Board Secretary at Alkermes, Inc. During her 15-year tenure, she was responsible for a wide range of functions across legal, intellectual property, government affairs, policy and operations. As General Counsel, she established the legal function, oversaw regulatory issues, and held operational and strategic roles in major licensing and mergers and acquisitions transactions.

Prior to joining Alkermes, Kathy held several senior legal positions including Of Counsel at Crowell & Moring LLC and General Counsel for Serono (now Merck Serono) in Geneva, Switzerland, where she built a worldwide legal department. Earlier in her career, she was a member of the Executive Board and Legal Counsel of the World Economic Forum. She began her career as an engineer at General Motors where she worked on an early prototype of Chevrolet’s all electric vehicle.

Kathy served on the BIO General Counsel Committee Executive Board from 2008 -2017 and was its Chair from 2016-2017. In this capacity, she played a leading role in reviewing legal policy issues relevant to the industry and guided the patent reform act to safeguard the intellectual property of biotech companies. She also recently served on the Board of Directors of Triplet Therapeutics and as an observer on the investment committee of two oncology social impact funds. In 2020 Kathy ran for the Maine House of Representatives, and the people that she met while running for office inspired her to launch a local program to help individuals and small businesses access federal and state pandemic relief funds and unemployment benefits.

She also serves on the board of Meridian Stories, is a trustee of the Freeport Conservation Trust, and is a member of the Biopharma Advisory Team for FocusMaine.

Kathy received her B.S. in mechanical-electrical engineering from Kettering University and her J.D. from the University of Michigan Law School.