<SEC-DOCUMENT>0000950142-25-002278.txt : 20250826
<SEC-HEADER>0000950142-25-002278.hdr.sgml : 20250826
<ACCEPTANCE-DATETIME>20250826212422
ACCESSION NUMBER:		0000950142-25-002278
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20250826
FILED AS OF DATE:		20250826
DATE AS OF CHANGE:		20250826

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Meghji Mohsin Y
		CENTRAL INDEX KEY:			0001202993
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42816
		FILM NUMBER:		251259448

	MAIL ADDRESS:	
		STREET 1:		C/O LOUGHLIN MEGHJI COMPANY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10016

	FORMER NAME:	
		FORMER CONFORMED NAME:	MEGHJI MOHSIN Y
		DATE OF NAME CHANGE:	20021101

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			M3-Brigade Acquisition VI Corp.
		CENTRAL INDEX KEY:			0002073928
		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		EIN:				000000000
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1700 BROADWAY, 19TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		212-202-2200

	MAIL ADDRESS:	
		STREET 1:		1700 BROADWAY, 19TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>es250671164_3-m36meghji.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2025-08-26</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0002073928</issuerCik>
        <issuerName>M3-Brigade Acquisition VI Corp.</issuerName>
        <issuerTradingSymbol>MBVI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001202993</rptOwnerCik>
            <rptOwnerName>Meghji Mohsin Y</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O M3-BRIGADE ACQUISITION VI CORP.</rptOwnerStreet1>
            <rptOwnerStreet2>1700 BROADWAY, 19TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive Chairman of the BOD</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Class B ordinary shares</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A ordinary shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8625000</value>
                    <footnoteId id="F2"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By M3-Brigade Sponsor VI LLC</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">As described in the issuer's registration statement on Form S-1 (File No. 333-289225) under the heading &quot;Description of Securities-Founder Shares&quot;, the Class B ordinary shares, par value $0.0001 per share, will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, or earlier at the option of the holder, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.</footnote>
        <footnote id="F2">The Class B ordinary shares beneficially owned by the reporting person include up to 1,125,000 shares that are subject to forfeiture to the extent the underwriters of the initial public offering of the issuer's securities do not exercise in full their over-allotment option as described in the issuer's registration statement.</footnote>
        <footnote id="F3">The securities reported herein are held by M3-Brigade Sponsor VI LLC (the &quot;Sponsor&quot;). The reporting person controls M3-Brigade Acquisition Partners VI Corp., the managing member of the Sponsor, and as such has voting and investment discretion with respect to the securities held by the Sponsor and may be deemed to have beneficial ownership of the securities held directly by the Sponsor. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.</footnote>
    </footnotes>

    <remarks>Exhibit 24.1 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Mohsin Y. Meghji</signatureName>
        <signatureDate>2025-08-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.1
<SEQUENCE>2
<FILENAME>es250671164_ex2401.htm
<DESCRIPTION>EXHIBIT 24.1
<TEXT>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: right; text-indent: 0in"><FONT STYLE="font-variant: small-caps"><B>EXHIBIT
24.1</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: center; text-indent: 0in"><FONT STYLE="font-variant: small-caps"><B><U>Power of Attorney</U></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in"><FONT STYLE="text-transform: uppercase">Know
all by these presents</FONT>, that the undersigned hereby constitutes and appoints Charles Garner, signing <FONT STYLE="text-transform: uppercase">singly</FONT>,
the undersigned&rsquo;s true and lawful attorney-in-fact to:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in">(1) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;execute
for and on behalf of the undersigned, in the undersigned&rsquo;s capacity as an officer, director or holder of 10% or more of the registered
class of securities of M3-Brigade Acquisition VI Corp. (the &ldquo;<B><I>Company</I></B>&rdquo;), Forms 3, 4 and 5 in accordance with
Section 16(a) of the Securities Exchange Act of 1934, as amended, and the rules thereunder;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in">(2) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;do
and perform any and all acts for and on behalf of the undersigned that may be necessary or desirable to complete and execute any such
Form 3, 4 or 5, complete and execute any amendment or amendments thereto and timely file such forms or amendments with the United States
Securities and Exchange Commission and any stock exchange or similar authority; and</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in">(3) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;take
any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit,
in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact
on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such
attorney-in-fact may approve in such attorney-in-fact&rsquo;s discretion.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in">The undersigned hereby
grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary
or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned
might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact&rsquo;s substitute or substitutes, shall lawfully do or cause to be done by virtue of this
power of attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, serving
in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned&rsquo;s responsibilities
to comply with Section 16 of the Exchange Act.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 0.5in">This Power of Attorney
shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4 and 5 with respect to the undersigned&rsquo;s
holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered
to the foregoing attorneys-in-fact.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: center; text-indent: 0in">* * * * *</P>




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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: justify; text-indent: 1in">IN WITNESS WHEREOF, the undersigned
has caused this Power of Attorney to be executed as of this 26th day of August 2025.</P>



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  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; text-indent: 0in">&nbsp;</TD>
    <TD STYLE="width: 5%; text-indent: 0in">By:</TD>
    <TD STYLE="border-bottom: Black 1pt solid; width: 35%; text-indent: 0in">/s/ Mohsin Y. Meghji</TD>
    <TD STYLE="width: 10%; text-indent: 0in">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-indent: 0in">&nbsp;</TD>
    <TD STYLE="text-indent: 0in">Name: Mohsin Y. Meghji</TD>
    <TD STYLE="text-indent: 0in">&nbsp;</TD></TR>
  </TABLE>
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<P STYLE="font: 10pt Calibri, Helvetica, Sans-Serif; margin: 0 0 10pt">&nbsp;</P>

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