Lesley Ann Calhoun has served as our Executive Vice President, Chief Financial Officer since June 2020. Ms. Calhoun has served as a Director of Tango Therapeutics, Inc., a publicly traded biotechnology company since March 2021, and also serves as the Chair of the Audit Committee and a member of the Nominating and Corporate Governance Committee. From August 2016 to June 2020, Ms. Calhoun served in various roles at Global Blood Therapeutics, Inc., a drug discovery, development, and commercial-stage biopharmaceutical company, including most recently as Senior Vice President, Finance & Administration and Chief Accounting Officer. Prior to these roles, Ms. Calhoun served as Vice President of Finance at Hyperion Therapeutics, Inc., a commercial stage biopharmaceutical company, from January 2013 to September 2015, continuing in her role after it was acquired by Horizon Pharma pie, a pharmaceutical company, in May 2015. Ms. Calhoun also previously served as Senior Director of Finance, Corporate Controller at lnnoviva, Inc. (formerly Theravance, Inc.), a biopharmaceutical company, from August 2005 to January 2013. Earlier in her career, Ms. Calhoun was a member of the audit practice of Deloitte & Touche LLP from 1989 to 2001. Ms. Calhoun received her B.S. in Business Administration with a concentration in Accounting from San Francisco State University, College of Business and is a Certified Public Accountant (inactive).