Anna Protopapas has served as a member of our Board of Directors since March 2015. She previously served as our President and Chief Executive Officer from March 2015 until her retirement in September 2023. Ms. Protopapas has served as chair of the board of directors of Nuvalent since March 2022. She previously served as a director of Dicerna Pharmaceuticals, Inc., a biotechnology company, from January 2019 until June 2021. Ms. Protopapas received a B.S. in science and engineering from Princeton University, an M.S. in chemical engineering practice from the Massachusetts Institute of Technology and an M.B.A. from Stanford Graduate School of Business.