<SEC-DOCUMENT>0000950142-25-002953.txt : 20251112
<SEC-HEADER>0000950142-25-002953.hdr.sgml : 20251112
<ACCEPTANCE-DATETIME>20251112214112
ACCESSION NUMBER:		0000950142-25-002953
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20251112
DATE AS OF CHANGE:		20251112

SUBJECT COMPANY:	

	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

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-95324
		FILM NUMBER:		251475146

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			M3-Brigade Sponsor VI LLC
		CENTRAL INDEX KEY:			0002073926
		ORGANIZATION NAME:           	
		EIN:				392610305
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G

	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>SCHEDULE 13G
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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  <headerData>
    <submissionType>SCHEDULE 13G</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <!-- Field: Pseudo-Tag; ID: Name; Data: M3%2DBrigade Sponsor VI LLC -->
          <cik>0002073926</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <securitiesClassTitle>Class A Ordinary Shares, par value $0.0001</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>09/30/2025</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0002073928</issuerCik>
        <issuerName>M3-Brigade Acquisition VI Corp.</issuerName>
        <issuerCusip>G63221108</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>1700 BROADWAY, 19TH FLOOR</com:street1>
          <com:city>NEW YORK</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10019</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(d)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>M3-Brigade Sponsor VI LLC</reportingPersonName>
      <citizenshipOrOrganization>DE</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>8625000.00</soleVotingPower>
        <sharedVotingPower>0.00</sharedVotingPower>
        <soleDispositivePower>8625000.00</soleDispositivePower>
        <sharedDispositivePower>0.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>8625000.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>20.0</classPercent>
      <typeOfReportingPerson>OO</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>M3-Brigade Acquisition Partners VI Corp.</reportingPersonName>
      <citizenshipOrOrganization>DE</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>8625000.00</soleVotingPower>
        <sharedVotingPower>0.00</sharedVotingPower>
        <soleDispositivePower>8625000.00</soleDispositivePower>
        <sharedDispositivePower>0.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>8625000.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>20.0</classPercent>
      <typeOfReportingPerson>CO</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Mohsin Y. Meghji</reportingPersonName>
      <citizenshipOrOrganization>X1</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>8625000.00</soleVotingPower>
        <sharedVotingPower>0.00</sharedVotingPower>
        <soleDispositivePower>8625000.00</soleDispositivePower>
        <sharedDispositivePower>0.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>8625000.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>20.0</classPercent>
      <typeOfReportingPerson>IN</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>M3-Brigade Acquisition VI Corp.</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>1700 Broadway, 19th Floor, New York, NY 10019</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>This statement is being filed on behalf of each of the following persons (each, a "Reporting Person" and, collectively, the "Reporting Persons"):

1. M3-Brigade Sponsor VI LLC
2. M3-Brigade Acquisition Partners VI Corp.
3. Mohsin Y. Meghji</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>1700 Broadway, 19th Floor
New York, NY 10019</principalBusinessOfficeOrResidenceAddress>
        <citizenship>See row 4 of the cover page of each Reporting Person.</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>Y</notApplicableFlag>
      </item3>
      <item4>
        <amountBeneficiallyOwned>M3-Brigade Sponsor VI LLC (the "Sponsor") directly owns 8,625,000 Class B ordinary shares, par value $0.0001 per share ("Class B Ordinary Shares"), of M3-Brigade Acquisition VI Corp. (the "Issuer"), which are convertible into the Issuer's Class A ordinary shares, par value $0.0001 per share ("Class A Ordinary Shares"). Such shares may be deemed to be beneficially owned by M3-Brigade Acquisition Partners VI Corp. ("MBAP"), which is the general partner of the Sponsor, and Mohsin Y. Meghji, who is the sole director of MBAP. As a result of these relationships, each of the Sponsor, MBAP and Mr. Meghji may be deemed to have or share beneficial ownership of the securities held directly by the Sponsor. Each of the Sponsor, MBAP and Mr. Meghji disclaims beneficial ownership of such securities except to the extent of their direct ownership.

In addition to the securities reported on the cover pages hereto, the Sponsor also directly owns 4,333,333 private placement warrants to purchase 4,333,333 Class A Ordinary Shares. The warrants become exercisable beginning 30 days after the completion of the Issuer's initial business combination and expire five years after the completion of the Issuer's initial business combination or earlier upon redemption or liquidation.

Percentage ownership is based on 34,500,000 Class A Ordinary Shares outstanding as of October 8, 2025, as reported by the Issuer in its quarterly report on Form 10-Q for the period ended June 30, 2025, and 8,625,000 Class B Ordinary Shares directly owned by the Sponsor, and assumes conversion of such Class B Ordinary Shares into Class A Ordinary Shares.

See row 9 of the cover page of each Reporting Person.</amountBeneficiallyOwned>
        <classPercent>See row 11 of the cover page of each Reporting Person.</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>See row 5 of the cover page of each Reporting Person.</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>See row 6 of the cover page of each Reporting Person.</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>See row 7 of the cover page of each Reporting Person.</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>See row 8 of the cover page of each Reporting Person.</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>Y</notApplicableFlag>
      </item5>
      <item6>
        <notApplicableFlag>Y</notApplicableFlag>
      </item6>
      <item7>
        <notApplicableFlag>Y</notApplicableFlag>
      </item7>
      <item8>
        <notApplicableFlag>Y</notApplicableFlag>
      </item8>
      <item9>
        <notApplicableFlag>Y</notApplicableFlag>
      </item9>
      <item10>
        <notApplicableFlag>Y</notApplicableFlag>
      </item10>
    </items>
    <exhibitInfo>Exhibit 99.1: Joint Filing Agreement, dated as of November 12, 2025, by and among M3-Brigade Sponsor VI LLC, M3-Brigade Acquisition Partners VI Corp. and Mohsin Y. Meghji.</exhibitInfo>
    <signatureInformation>
      <reportingPersonName>M3-Brigade Sponsor VI LLC</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Mohsin Y. Meghji</signature>
        <title>Mohsin Y. Meghji, Authorized Person</title>
        <date>11/12/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>M3-Brigade Acquisition Partners VI Corp.</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Mohsin Y. Meghji</signature>
        <title>Mohsin Y. Meghji, Authorized Person</title>
        <date>11/12/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Mohsin Y. Meghji</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Mohsin Y. Meghji</signature>
        <title>Mohsin Y. Meghji</title>
        <date>11/12/2025</date>
      </signatureDetails>
    </signatureInformation>
  </formData>

</edgarSubmission>
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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>eh250703489_ex9901.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
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<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: right; text-indent: 0in"><B>EXHIBIT 99.1</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0pt; text-align: center; text-indent: 0in"><B>JOINT FILING AGREEMENT<BR>
PURSUANT TO RULE 13d-1(k)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0pt; text-indent: 0.5in">The undersigned acknowledge and agree that the
foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement
on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements.
The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy
of the information concerning him or it contained herein and therein, but shall not be responsible for the completeness and accuracy of
the information concerning the others, except to the extent that he or it knows or has reason to believe that such information is inaccurate.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">DATE: November 12, 2025</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in">&nbsp;</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><B>M3-Brigade Sponsor VI LLC</B></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-size: 10pt">a Delaware limited liability company</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%">&nbsp;</TD>
    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="width: 35%">&nbsp;</TD>
    <TD STYLE="width: 10%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD><FONT STYLE="font-size: 10pt">M3-Brigade Acquisition Partners VI  Corp., its managing member</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid"><FONT STYLE="font-size: 10pt">/s/ Mohsin Y. Meghji</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name: Mohsin Y. Meghji</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title: Authorized Person</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><B>M3-Brigade Acquisition Partners VI Corp.</B></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-size: 10pt">a Delaware corporation</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid"><FONT STYLE="font-size: 10pt">/s/ Mohsin Y. Meghji</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name: Mohsin Y. Meghji</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title: Authorized Person</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-size: 10pt"><B>Mohsin Y. Meghji</B></FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1pt solid"><FONT STYLE="font-size: 10pt">/s/ Mohsin Y. Meghji</FONT></TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name: Mohsin Y. Meghji</FONT></TD>
    <TD>&nbsp;</TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 0in">&nbsp;</P>




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