Stephen Berenson
Advisor Partner
Stephen Berenson is an Advisor Partner at Flagship Pioneering after having served as Managing Partner and Managing Partner Emeritus from his start at Flagship in 2017 until his retirement in 2025.
During his time at Flagship, Stephen built and ran Flagship’s Capital Formation and Business Development teams, and he served on the boards of directors of Flagship-founded companies Moderna, where he helped guide the company’s growth from pre-IPO through the COVID-19 pandemic and into the post-pandemic period, CIBO Technologies, and Repertoire Immune Medicines.
Stephen is currently a member of the boards of Flagship-founded Cellarity, Sail Biomedicines, Seres Therapeutics, and Inari.