Richard Aldrich has served as a member of PTC's board of directors since March 2013. Mr. Aldrich is a co-founder and Partner of Longwood Fund. He has co-founded and helped to build several successful biotech companies including Sirtris Pharmaceuticals (acquired by GlaxoSmithKline in 2008), Concert Pharmaceuticals, where he serves as Chairman of the Board of Directors, and Longwood portfolio companies Alnara Pharmaceuticals (acquired by Eli Lilly in 2010), Verastem, where he serves on the Board of Directors, and OvaScience, where he serves as Chairman of the Board of Directors. Mr. Aldrich also serves on the Board of Directors of Mitokyne, Inc. (a Longwood portfolio company) and Tempero Pharmaceuticals. Prior to co-founding Longwood, he was General Partner of RA Capital, a biotechnology investment fund he founded in 2001. Mr. Aldrich was also a founding employee of Vertex Pharmaceuticals where he held the position of Senior Vice President and Chief Business Officer and managed all commercial and operating functions from 1989 to 2001. Prior to joining Vertex, Mr. Aldrich held several management positions at Biogen, Inc. Mr. Aldrich serves on the Board of the Massachusetts Eye & Ear Infirmary and the Greater Boston YMCA. Mr. Aldrich received his undergraduate degree from Boston College and an MBA from the Amos Tuck School at Dartmouth College.