On August 19, 2019, Aaron Royston, M.D., notified the Board of Directors of Menlo Therapeutics Inc. of his decision to resign from the Board and the Nominating and Corporate Governance Committee of the Board, effective August 19, 2019, in connection with a general reduction of his board memberships, including his recent resignation from the other public company board on which he served. Dr. Royston's resignation was not due to any disagreement with the Company, the Board or the management of the Company.