On December 31, 2020, the Board of Directors of Radius Health, Inc. elected Machelle Sanders as a Class III director and Andrew C. von Eschenbach, M.D. as a Class II director of the Board, effective January 4, 2021. Ms. Sanders and Dr. von Eschenbach will fill vacancies on the Board resulting from the resignations of Anthony Rosenberg and Jessica Hopfield, Ph.D. from the Board and all committees on which they served, submitted on December 30, 2020 and December 31, 2020, respectively, and effective December 31, 2020. Mr. Rosenberg's and Dr. Hopfield's decisions to resign did not result from any disagreement with the Company on any matter relating to its operations, policies or practices.