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): March 2, 2021

MCAP Acquisition Corporation

(Exact name of registrant as specified in its charter)

(312) 258-8300

(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 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 x

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. ¨

On March 2, 2021, MCAP Acquisition Corporation (the “Company”) completed its initial public offering (“IPO”) of 31,625,000 units (“Units”), including the issuance of 4,125,000 Units as a result of the underwriter’s full exercise of its over-allotment option. Each Unit consists of one share of Class A common stock, par value $0.0001 per share (“Class A Common Stock”), and one-third of one redeemable warrant (“Warrant”), each whole Warrant entitling the holder thereof to purchase one share of Class A Common Stock at an exercise price of $11.50 per share, subject to adjustment, pursuant to the Company’s registration statements on Form S-1 (File Nos. 333-252607 and 333-253556). The Units were sold at an offering price of $10.00 per Unit, generating gross proceeds of $31,625,000.

As previously reported on a Current Report on Form 8-K of the Company, on March 2, 2021, simultaneously with the consummation of the IPO, the Company completed a private placement of an aggregate of 5,983,333 warrants (the “Private Placement Warrants”) at a price of $1.50 per Private Placement Warrant, generating total gross proceeds of $8,975,000 (the “Private Placement”).

A total of $316,250,000 of the net proceeds from the IPO and the Private Placement was deposited in a trust account established for the benefit of the Company’s public stockholders. An audited balance sheet as of March 2, 2021 reflecting receipt of the proceeds upon consummation of the IPO and the Private Placement has been issued by the Company and is attached hereto as Exhibit 99.1.

(d) Exhibits.

SIGNATURE

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.

Date: March 8, 2021