Ms. Yarno has served as a member of GBTâs board of directors since December 2017. She has more than 25 years of experience in the biopharmaceutical industry, including at Merck & Co., Inc., where she held positions of increasing seniority, most recently as chief marketing officer. In that position, she led a global organization charged with all aspects of supporting pre-and post-launch commercialization of pharmaceuticals in more than 20 therapeutic areas. She also served as general manager, Cardiovascular/Metabolic U.S. Business Unit and as Merckâs senior vice president of human resources. Earlier in her career, she was vice president of the Womenâs Health Care Franchise for Johnson & Johnsonâs Ortho McNeil Pharmaceutical subsidiary. Ms. Yarno has served as a member of the board of several public and private biotechnology and medical device companies, including St. Jude Medical, Medivation, ADial Pharmaceuticals, Durata Therapeutics and Plurogen Therapeutics. Currently, she is chairperson of the board of Aratana Therapeutics and a member of the boards of Alder Biopharmaceuticals, Inovio Pharmaceuticals and MyoKardia. Ms. Yarno received an M.B.A. from Temple University, Fox School of Business, and a B.S. in business administration from Portland State University.