M3-Brigade Acquisition VI Corp. (MBVI) director reports zero holdings

Rhea-AI Filing Summary

M3-Brigade Acquisition VI Corp. disclosed an insider ownership update for director Frank M. Garrison as of 12/02/2025. The initial beneficial ownership statement indicates that he holds no securities of the company, with the remarks section explicitly stating that no securities are beneficially owned. The form is filed by one reporting person and signed by Charles Garner as attorney-in-fact for Garrison under a power of attorney identified as Exhibit 24.1.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

GARRISON FRANK M

(Last) (First) (Middle)

M3-BRIGADE ACQUISITION VI CORP.

1700 BROADWAY, 19TH FLOOR

(Street)

NEW YORK NY 10019

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
12/02/2025

3. Issuer Name and Ticker or Trading Symbol
M3-Brigade Acquisition VI Corp. [ MBVI ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Exhibit 24.1 - Power of Attorney

No securities are beneficially owned.

	/s/ Charles Garner, as attorney-in-fact for Frank M. Garrison	12/12/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider ownership does the MBVI director report in this filing?

The filing states that director Frank M. Garrison beneficially owns no securities of M3-Brigade Acquisition VI Corp., as noted in the remarks section.

Who is the reporting person in the M3-Brigade Acquisition VI (MBVI) insider statement?

The reporting person is Frank M. Garrison, identified as a director of M3-Brigade Acquisition VI Corp., with the form filed for one reporting person.

Does the MBVI director hold any derivative securities or options?

No. The remarks clearly state that no securities are beneficially owned, which covers both non-derivative and derivative securities.

What is the event date for this MBVI insider ownership report?

The date of the event requiring the statement is listed as 12/02/2025.

What is Exhibit 24.1 referenced in the M3-Brigade Acquisition VI Corp. filing?

Exhibit 24.1 is described as a Power of Attorney, which authorizes Charles Garner to sign the statement as attorney-in-fact for Frank M. Garrison.

How is the MBVI insider ownership form signed and by whom?

The statement is signed /s/ Charles Garner as attorney-in-fact for Frank M. Garrison, with the signature dated 12/12/2025.