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

August 16, 2022

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. ¨

As previously reported, on February 16, 2022, Marker Therapeutics, Inc. (the “Company”) received a notice from The Nasdaq Stock Market (“Nasdaq”) that the Company was not in compliance with Nasdaq’s Listing Rule 5450(a)(1), as the minimum bid price of the Company’s common stock had been below $1.00 per share for 30 consecutive business days. The Company was granted 180 calendar days, or until August 15, 2022, to regain compliance with the minimum bid price requirement. On August 16, 2022, Nasdaq approved the Company’s application to transfer to The Nasdaq Capital Market, effective at the opening of business on August 18, 2022, and notified the Company that it had been granted an additional 180-calendar day compliance period, or until February 13, 2023, to regain compliance with the minimum bid price requirement. As part of the transfer, the Company provided notice to Nasdaq that it intended to cure the bid price deficiency by effecting a reverse stock split, if necessary, prior to the end of the compliance period. The Company’s failure to regain compliance during this period could result in delisting, which the Company could appeal to a Nasdaq hearings panel.

The Company intends to actively monitor the bid price of its common stock and will consider available options, including a reverse stock split, to regain compliance with the listing requirements. There can be no assurance that the Company will be able to regain compliance with Nasdaq’s Listing Rule 5450(a)(1) or will otherwise be in compliance with other Nasdaq listing criteria.

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.