UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

June 8, 2021

Date of Report (Date of earliest event reported)

MARKER THERAPEUTICS, INC.

(Exact name of registrant as specified in its charter)

(713) 400-6400

Registrant’s telephone number, including area code

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Item 5.07 Submission of Matters to a Vote of Security Holders.

On June 8, 2021, Marker Therapeutics, Inc. (the “Company”) held its 2021 Annual Meeting of Stockholders (the “Annual Meeting”). The stockholders considered three proposals, each of which is described in more detail in the Company’s definitive proxy statement filed with the Securities and Exchange Commission on April 23, 2021. Of the 83,013,929 shares outstanding as of the record date, 55,809,862 shares, or 67.2%, were present or represented by proxy at the Annual Meeting. Set forth below are the results of the matters submitted for a vote of stockholders at the Annual Meeting.

Proposal No. 1: Election of seven nominees to serve as directors until the 2022 annual meeting of stockholders and until their respective successors are elected and qualified. The votes were cast as follows:

Broker Non-Votes: 18,183,378.

All nominees were elected.

Proposal No. 2: Approval, on an advisory basis, of the compensation of the Company’s named executive officers. The votes were cast as follows:

Broker Non-Votes: 18,184,378.

Proposal No. 3: Ratification of the selection of Marcum LLP as independent registered public accounting firm for the fiscal year ending December 31, 2021. The votes were cast as follows:

Broker Non-Votes: 0.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.