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

Date of Report (Date of earliest event reported): May 25, 2021

FirstMark Horizon Acquisition Corp.

(Exact name of registrant as specified in its charter)

(212) 792-2200

(Registrant’s telephone number, including area code)

Not Applicable

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

Check the appropriate box below if the Form 8-K filing 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 Securities Exchange Act of 1934:

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 3.01 Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

On April 12, 2021, the Acting Director of the Division of Corporation Finance and Acting Chief Accountant of the U.S. Securities and Exchange Commission (the “SEC”) together issued a statement regarding the accounting and reporting considerations for warrants issued by special purpose acquisition companies entitled “Staff Statement on Accounting and Reporting Considerations for Warrants Issued by Special Purpose Acquisition Companies (‘SPACs’)” (the “SEC Staff Statement”). As previously disclosed in the Notification of Late Filing on Form 12b-25, filed with the SEC on May 18, 2021, given the scope of the process for determining the appropriate accounting treatment of its outstanding warrants in accordance with the SEC Staff Statement and Accounting Standards Codification (“ASC”) 815-40, Derivatives and Hedging: Contracts in an Entities Own Equity, FirstMark Horizon Acquisition Corp. (the "Company") was unable to complete and file its Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2021 (the “Form 10-Q”) by the required due date without unreasonable effort and expense.

On May 25, 2021, the Company received a notice (the “Notice”) from the New York Stock Exchange (the “Exchange”) indicating that, as a result of not having timely filed the Form 10-Q with the SEC, the Company is not in compliance with Section 802.01E of the NYSE Listed Company Manual (the “Listing Rule”). The Listing Rule requires listed companies to timely file all required periodic reports with the SEC.

The Notice indicated that the Company can regain compliance with the Exchange’s listing standards at any time prior to November 24, 2021 by filing the Form 10-Q. If the Company fails to file the Form 10-Q by such date, the Exchange may grant, at its sole discretion, an extension for the Company to regain compliance, depending on the specific circumstances. The Notice also stated that the Exchange may nevertheless commence delisting proceedings at any time if it deems that the circumstances warrant.

The Company filed its Form 10-Q on May 28, 2021, which cures the deficiency described in the Notice.

Cautionary Statement Regarding Forward-Looking Statements

This report includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements, including relating to the filing of the 10-Q, other than statements of historical fact included in this report are forward-looking statements. When used in this report, words such as “anticipate,” “believe,” “estimate,” “expect,” “intend” and similar expressions, as they relate to the Company or its management team, identify forward-looking statements. Such forward-looking statements are based on the beliefs of management, as well as assumptions made by, and information currently available to, the Company’s management. Actual results could differ materially from those contemplated by the forward-looking statements as a result of certain factors detailed in the Company’s filings with the SEC. All subsequent written or oral forward-looking statements attributable to the Company or persons acting on its behalf are qualified in their entirety by this paragraph. Forward-looking statements are subject to numerous conditions, many of which are beyond the control of the Company, including those set forth in the Risk Factors section of the Company’s Annual Report on Form 10-K, as it may be amended, filed with the SEC. Copies of such filings are available on the SEC’s website, www.sec.gov. The Company undertakes no obligation to update these statements for revisions or changes after the date of this release, except as required by law.

SIGNATURES

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

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