Seth Harrison, M.D., 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, Elstar Therapeutics, Limelight Bio, Stoke Therapeutics, and Syntimmune, and is a director of Corvidia Therapeutics. Seth’s prior investments include: Aileron Therapeutics, ArQule, Coelacanth, Cyrano Sciences, Gloucester Pharmaceuticals, HeartWare International, Informed Access, SGX Pharmaceuticals, Tokai Pharmaceuticals, 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 he was a venture partner at Sevin Rosen Funds.