false 0002073928 0002073928 2025-10-16 2025-10-16 0002073928 MBVI:UnitsEachConsistingOfOneClassOrdinaryShareAndOnehalfOfOneRedeemableWarrantMember 2025-10-16 2025-10-16 0002073928 MBVI:ClassOrdinaryShareParValue0.0001PerShareMember 2025-10-16 2025-10-16 0002073928 MBVI:WarrantsEachWholeWarrantExercisableForOneClassOrdinaryShareAtExercisePriceOf11.50PerShareMember 2025-10-16 2025-10-16 iso4217:USD xbrli:shares iso4217:USD xbrli:shares

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~~SECURITIES ofEXCHANGE ~~Report~~ACT ~~(Date~~OF ~~of earliest event reported): October 16, 2025~~1934

~~M3-BRIGADE~~Date ~~ACQUISITION~~of VIReport ~~CORP.~~ (~~Exact~~Date ~~name~~ of ~~registrant~~earliest asevent ~~specified~~reported): inDecember 2, ~~its charter)~~2025

_________________

M3-BRIGADE ACQUISITION VI CORP.

(Exact name of registrant as specified in its charter)

Cayman Islands		001-42816		98-1863762
(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)

(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 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))

☐ 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 Class A ordinary share and one-third of one redeemable warrant	MBVIU	The Nasdaq Stock Market LLC
Class A ordinary share, par value $0.0001 per share	MBVI	The Nasdaq Stock Market LLC
Warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share	MBVIW	The Nasdaq Stock Market LLC

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 85.~~01.~~02 ~~Other~~Departure ~~Events~~of Directors of Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On ~~October~~December 162, 2025, ~~M3-Brigade Acquisition VI Corp. (~~the ~~“Company”)~~board ~~issued a press release, a copy~~ of ~~which~~directors ~~is attached as Exhibit 99.1 to this Current Report on Form 8-K, announcing that the holders of the Company’s units~~ (the “~~Units~~Board”) ~~may elect to separately trade the~~ ~~Company’s~~of ~~Class~~M3-Brigade AAcquisition ~~ordinary~~VI ~~shares, par value $0~~Corp.~~0001~~ ~~per share~~ (the “~~Class A Shares~~Company”), ~~and~~appointed ~~warrants~~Frank ~~(the~~M. ~~“Warrants”) comprising the units commencing on or about October 17~~Garrison, ~~2025~~Jr. ~~Each~~as ~~Unit~~an ~~consists~~independent ofdirector ~~one Class A Share and one-third~~ of ~~one~~the ~~redeemable~~Company. ~~Warrant~~Effective toDecember ~~purchase one Class A Share. Any Units not separated will continue to trade on the Nasdaq Global Market under the symbol “MBVIU~~2,~~” and~~ ~~the Class A Shares and Warrants that are separated will trade on the Nasdaq Global Market under the symbols “MBVI” and “MBVIW~~2025,” ~~respectively~~Mr. NoGarrison ~~fractional~~was ~~Warrants~~appointed ~~will~~to ~~be issued upon separation of~~ the ~~Units~~Audit and ~~only~~Compensation ~~whole~~Committee ~~Warrants will trade. Holders~~ of the ~~Units will need to have their brokers contact Continental Stock Transfer & Trust Company, the Company’s transfer agent, in order to separate the Units into the Class A Shares and Warrants~~Board.

On December 2, 2025, in connection with his appointment to the Board, Mr. Garrison entered into a letter agreement as well as an indemnity agreement with the Company.

Other than the foregoing, Mr. Garrison is not a party to any arrangement or understanding with any person pursuant to which he was appointed as director nor is he party to any transactions required to be disclosed under Item 404(a) of Regulation S-K involving the Company.

The foregoing descriptions of the letter agreement and indemnity agreement do not purport to be complete and are qualified in their entireties by reference to the letter agreement and the indemnity agreement, copies of which are attached as Exhibit 10.1 and 10.2 hereto and incorporated herein by reference.

Item 9.01

Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are filed with this Form 8-K:

Exhibit No.		Description of Exhibits
99.1		Press Release, dated October 16, 2025.
10.1		Letter Agreement, dated December 2, 2025, between the Company and Frank M. Garrison, Jr.
10.2		Indemnity Agreement, dated December 2, 2025, between the Company and Frank M. Garrison, Jr.

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 VI CORP.
Date: October 16, 2025	By:	/s/ Eric Greenhaus
Date: December 4, 2025	By:	/s/ Eric Greenhaus
		Name:	Eric Greenhaus
		Title:	Chief Financial Officer

Filing Compare · M3-Brigade Acquisition VI Corp.