Our Team


Seth L. Harrison, MD
Managing Partner, Apple Tree Partners

Seth Harrison is the founder and managing partner of Apple Tree Partners. He has invested in life sciences since 1991. He is currently Chairman of ATP companies Braeburn Pharmaceuticals, Limelight Bio and Stoke Therapeutics.

Seth’s prior investments include: Aileron Therapeutics, ArQule, Ceolacanth, Cryano Sciences, Gloucester Pharmaceuticals, HeartWare International, Informed Access, SGX Pharmaceuticals, Syntimmune, Novus Therapeutics, Ultracision and ViroPharma. From 2002 to 2010, he also served on the board of the International Partnership for Microbicides. Prior to Founding ATP in 1999, Seth was a general partner at Oak Investment Partners, and before that a venture partner at Sevin Rosen Funds.

Seth received an A.B. from Princeton University, an MD and MBA both from Columbia University and completed a surgery internship at the Presbyterian Hospital in the City of New York.

BOARD RESPONSIBILITIES: Akero Therapeutics, Braeburn Pharmaceuticals, Corvidia Therapeutics, Elstar Therapeutics, Limelight Bio, Stoke Therapeutics.