United States securities and exchange commission logo August 17, 2021 Peter Hoang President and Chief Executive Officer Marker Therapeutics, Inc. 3200 Southwest Freeway, Suite 2500 Houston, TX 77027 Re: Marker Therapeutics, Inc. Registration Statement on Form S-3 Filed August 10, 2021 File No. 333-258687 Dear Mr. Hoang: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Lauren Hamill at 303-844-1008 with any questions. Sincerely, Division of Corporation Finance Office of Life Sciences cc: Owen Williams