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 10, 2023

M3-BRIGADE ACQUISITION III CORP.

(Exact name of registrant as specified in its charter)

Delaware

001-40946

86-3185502

(State or other jurisdiction

of incorporation)

(Commission File Number)

(I.R.S. Employer

Identification No.)

1700 Broadway, 19th Floor

New York, New York 10019

(Address of principal executive offices, including zip code)

(212) 202-2200

(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:

☐	Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Units, each consisting of one share of Class A common stock and one-third of one redeemable public warrant	MBSC.U	New York Stock Exchange
Class A common stock, par value $0.0001 per share	MBSC	New York Stock Exchange
Public warrants, each whole public warrant exercisable for one share of Class A common stock at an exercise price of $11.50 per share	MBSC WS	New York Stock Exchange

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 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On March 10, 2023, the Board appointed Ben Fader-Rattner, a director of the Company, to the Board’s Compensation Committee to fill the position previously held Mohsin Y. Meghji and appointed Scott Malpass, a director of the Company, to the Board’s Nominating Committee to fill the position previously held by Stephen Vinent. Each of Mr. Meghji and Mr. Vincent has resigned from his respective position as a member of the relevant Committee.

Each of Mr. Fader-Rattner and Mr. Malpass has been determined by the Board to be independent for purposes of the NYSE listing requirements, and the membership of each such committee of the Board is comprised solely of independent directors.

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SIGNATURE

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.

	M3-BRIGADE ACQUISITION III CORP.

Date: March 13, 2023	By:	/s/ Mohsin Y. Meghji
		Name:	Mohsin Y. Meghji
		Title:	Executive Chairman of the Board of Directors

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