On April 5, 2022, Mr. Frederick Wasserman, a member of the board of director of Marker Therapeutics, Inc. (the Company), notified the Board that he will not stand for reelection as a director of the Company upon expiration of his current term. Mr. Wasserman's term expires at the Company's 2022 Annual Meeting of Stockholders (the 2022 Annual Meeting). Mr. Wasserman is currently Chair of the Board and serves on the Audit, Compensation and Nominating and Corporate Governance Committees, and will serve in his current positions until the conclusion of the 2022 Annual Meeting.