[SCHEDULE 13D/A] CompoSecure, Inc. SEC Filing

Rhea-AI Filing Summary

CompoSecure (CMPO) — Schedule 13D/A Amendment No. 6: Reporting persons affirm their existing stakes and disclose agreements tied to the issuer’s proposed Combination with Husky Technologies Limited. Resolute Compo Holdings reports 49,290,409 shares of Class A Common Stock, representing 39.4% based on 125,195,366 shares outstanding as of October 30, 2025.

Tungsten 2024 LLC and Thomas R. Knott each report beneficial ownership of 49,937,302 shares (39.9%). John D. Cote reports 51,437,302 shares (41.1%), including 1,500,000 shares held by Ridge Valley LLC. The amendment states no change in the number of shares owned; it reflects entry into agreements related to the announced Transaction Agreements.

On November 2, 2025, the parties entered into a Share Purchase Agreement for the proposed Combination with Husky and concurrent private placements. A Voting Agreement commits the Voting Stockholders to vote all of their shares in favor of the Stock Issuance required for the Transactions, and Resolute Compo Holdings agreed to a 365‑day lock‑up following closing, subject to customary exceptions.

Insights

Governance & Ownership Analyst

Large holders reaffirm stakes and commit votes on Husky deal.

CompoSecure’s amendment centers on governance mechanics rather than ownership changes. Resolute Compo Holdings reports 49,290,409 shares (based on 125,195,366 outstanding as of Oct 30, 2025), while Tungsten 2024 LLC and Thomas R. Knott each report 49,937,302 shares. John D. Cote reports 51,437,302 shares including holdings via Ridge Valley LLC.

The filing lists a Voting Agreement under which the Voting Stockholders agree to support the Stock Issuance needed for the proposed Combination with Husky and notes a 365‑day lock‑up for Resolute Compo Holdings following closing. Actual effects depend on deal completion and shareholder approval as described.

Key items hinge on the approval of the Stock Issuance and closing under the Transaction Agreement. Subsequent company disclosures may provide timing and closing status.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 6)

CompoSecure, Inc.

(Name of Issuer)

Class A Common Stock, $0.0001 Par Value per share

(Title of Class of Securities)

20459V105

(CUSIP Number)

Thomas R. Knott
c/o Resolute Compo Holdings LLC, 445 Park Avenue, Suite 5B
New York, NY, 10022
(212) 256-8405

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

11/02/2025

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

CUSIP No. 20459V105

1

Name of reporting person

Resolute Compo Holdings LLC

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

PF, OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 49,290,409.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 49,290,409.00

11

Aggregate amount beneficially owned by each reporting person

49,290,409.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

39.4 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Consists of 49,290,409 shares of Class A Common Stock, $0.0001 par value per share, issued by CompoSecure, Inc. (the "Class A Common Stock"), held of record by Resolute Compo Holdings LLC ("Resolute Compo Holdings"). Row (13) is based upon 125,195,366 shares of Class A Common Stock that were outstanding as of October 30, 2025.

SCHEDULE 13D

CUSIP No. 20459V105

1

Name of reporting person

Tungsten 2024 LLC

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

PF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 49,937,302.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 49,937,302.00

11

Aggregate amount beneficially owned by each reporting person

49,937,302.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

39.9 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Consists of (i) 646,893 shares of Class A Common Stock held of record by Tungsten 2024 LLC ("Tungsten"), and (ii) 49,290,409 shares of Class A Common Stock held of record by Resolute Compo Holdings. Tungsten is the managing member of Resolute Compo Holdings, John Cote is the manager of Tungsten and Thomas Knott is a member of Resolute Compo Holdings. Tungsten, as managing member, has the right to vote and dispose of the shares of Class A Common Stock reported herein, subject to certain consultation rights held by Mr. Knott. Accordingly, Tungsten, Resolute Holdings, Mr. John Cote and Mr. Knott may each be deemed to share beneficial ownership of the shares of Class A Common Stock held of record by Resolute Compo Holdings, and Tungsten, Mr. John Cote and Mr. Knott may each be deemed to share beneficial ownership of the shares of Class A Common Stock held of record by Tungsten. Row (13) is based upon 125,195,366 shares of Class A Common Stock that were outstanding as of October 30, 2025.

SCHEDULE 13D

CUSIP No. 20459V105

1

Name of reporting person

Thomas R. Knott

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 49,937,302.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 49,937,302.00

11

Aggregate amount beneficially owned by each reporting person

49,937,302.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

39.9 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Consists of (i) 646,893 shares of Class A Common Stock held of record by Tungsten, and (ii) 49,290,409 shares of Class A Common Stock held of record by Resolute Compo Holdings. Tungsten is the managing member of Resolute Compo Holdings, John Cote is the manager of Tungsten and Thomas Knott is a member of Resolute Compo Holdings. Tungsten, as managing member, has the right to vote and dispose of the shares of Class A Common Stock reported herein, subject to certain consultation rights held by Mr. Knott. Accordingly, Tungsten, Resolute Holdings, Mr. John Cote and Mr. Knott may each be deemed to share beneficial ownership of the shares of Class A Common Stock held of record by Resolute Compo Holdings, and Tungsten, Mr. John Cote and Mr. Knott may each be deemed to share beneficial ownership of the shares of Class A Common Stock held of record by Tungsten. Row (13) is based upon 125,195,366shares of Class A Common Stock that were outstanding as of October 30, 2025.

SCHEDULE 13D

CUSIP No. 20459V105

1

Name of reporting person

John D. Cote

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 1,500,000.00
8	Shared Voting Power 49,937,302.00
9	Sole Dispositive Power 1,500,000.00
10	Shared Dispositive Power 49,937,302.00

11

Aggregate amount beneficially owned by each reporting person

51,437,302.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

41.1 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Consists of (i) 646,893 shares of Class A Common Stock held of record by Tungsten, (ii) 49,290,409 shares of Class A Common Stock held of record by Resolute Compo Holdings and (iii) 1,500,000 shares of Class A Common Stock held by Ridge Valley LLC. Tungsten is the managing member of Resolute Compo Holdings, John Cote is the manager of Tungsten and Thomas Knott is a member of Resolute Compo Holdings. Tungsten, as managing member, has the right to vote and dispose of the shares of Class A Common Stock reported herein, subject to certain consultation rights held by Mr. Knott. Accordingly, Tungsten, Resolute Holdings, Mr. John Cote and Mr. Knott may each be deemed to share beneficial ownership of the shares of Class A Common Stock held of record by Resolute Compo Holdings, and Tungsten, Mr. John Cote and Mr. Knott may each be deemed to share beneficial ownership of the shares of Class A Common Stock held of record by Tungsten. Row (13) is based upon 125,195,366shares of Class A Common Stock that were outstanding as of October 30, 2025.

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Class A Common Stock, $0.0001 Par Value per share
(b)	Name of Issuer: CompoSecure, Inc.
(c)	Address of Issuer's Principal Executive Offices: 309 Pierce Street, Somerset, NEW JERSEY , 08873.
Item 1 Comment: This Amendment No. 6 to Schedule 13D (this "Amendment No. 6") relates to the Class A Common Stock, par value $0.0001 per share (the "Class A Common Stock") of CompoSecure, Inc., a Delaware corporation (the "Issuer") and amends the initial statement on Schedule 13D filed by the Reporting Persons on September 19, 2024 (the "Initial Statement" and, as amended by those certain Amendment No. 1 filed on November 29, 2024, Amendment No. 2 filed on February 14, 2025, and Amendment No. 3 filed on August 22, 2025, Amendment No. 4 filed on August 27, 2025, Amendment No. 5 filed on September 10, 2025 and this Amendment No. 6, the "Schedule 13D"). Capitalized terms used but not defined herein shall have the meanings ascribed to them in the Initial Statement. This Amendment No. 6 is being filed to amend the Schedule 13D not to report any change in the number of shares of Class A Common Stock owned by any Reporting Person and solely to report the entry by certain Reporting Persons into certain agreements in connection with the announcement by the Issuer of the execution of the Transaction Agreements governing the Issuer's proposed Combination with Husky (each as defined below).
Item 2.	Identity and Background
(a)	See Row (1) of each Reporting Person's cover page.
(b)	The principal business office of the Reporting Persons is 445 Park Avenue, Suite 5B, New York, NY 10022.
(c)	No change.
(d)	No change.
(e)	No change.
(f)	No change.
Item 3.	Source and Amount of Funds or Other Consideration
	Item 3 is hereby amended and supplemented as specified in Appendix A.
Item 4.	Purpose of Transaction
	Item 4 is hereby amended and supplemented as set forth in Item 6 of this Amendment No. 6, which is incorporated herein by reference.
Item 5.	Interest in Securities of the Issuer
(a)	Item 5(a) is hereby amended and restated to read in its entirety as found in Appendix A.
(b)	Item 5(b) is hereby amended and restated to read in its entirety as found in Appendix A.
(c)	None.
(d)	None.
(e)	Not applicable.
Item 6.	Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer
	On November 2, 2025, the Issuer and certain of its subsidiaries entered into a Share Purchase Agreement (the "Transaction Agreement") with Husky Technologies Limited ("Husky"), Platinum Equity Advisors, LLC ("Platinum Equity"), certain entities affiliated with Platinum Equity and certain members of Husky management. Under the terms of the Transaction Agreement, the Issuer will combine with Husky (the "Combination"). Concurrently with the execution of the Transaction Agreement, the Issuer entered into purchase agreements with certain investors named therein, pursuant to which the Company agreed to issue and sell to such investors shares of Class A Common Stock (the "Private Placements," and together with the Combination, the "Transactions"). The closing of the Transactions is subject to satisfaction or waiver of certain closing conditions, including the approval of a majority of the votes cast by holders of Class A Common Stock of the issuance of the shares of Class A Common Stock in the Transactions (the "Stock Issuance"). In connection with the Transaction Agreement, the Issuer entered into a Voting Agreement (the "Voting Agreement") with entities affiliated with Platinum Equity, Resolute Compo Holdings, Tungsten and Ridge Valley LLC (collectively, the "Voting Stockholders"), pursuant to which the Voting Stockholders have agreed, among other things, to vote all of their shares of Class A Common Stock in favor of the Company Stock Issuance. The foregoing description of the Voting Agreement does not purport to be complete and is qualified in its entirety by the full text of the Voting Agreement, which is attached hereto as Exhibit 10, and is incorporated by reference herein. Additionally, concurrently with the execution of the Transaction Agreement, Resolute Compo Holdings entered into a Lock-Up Agreement with the Issuer pursuant to which Resolute Compo Holdings and its affiliates, including the Reporting Persons, will be subject to a lock-up period of 365 days following the closing date of the Combination, subject to customary exceptions.
Item 7.	Material to be Filed as Exhibits.
	Exhibit 10: Voting Agreement, dated as of November 2, 2025, by and among certain entities affiliated with Platinum Equity, Resolute Compo Holdings LLC, Tungsten 2024 LLC, Ridge Valley LLC and CompoSecure, Inc. (incorporated by reference to Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed with the SEC on November 4, 2025).

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Resolute Compo Holdings LLC

Signature:	/s/ John D. Cote
Name/Title:	John D. Cote, Manager of Tungsten 2024 LLC, its managing member
Date:	11/04/2025

Tungsten 2024 LLC

Signature:	/s/ John D. Cote
Name/Title:	Manager
Date:	11/04/2025

Thomas R. Knott

Signature:	/s/ Thomas R. Knott
Name/Title:	Thomas R. Knott
Date:	11/04/2025

John D. Cote

Signature:	/s/ John D. Cote
Name/Title:	John D. Cote
Date:	11/04/2025

FAQ

What did CMPO’s Schedule 13D/A Amendment No. 6 disclose?

It confirmed existing stakes and reported agreements tied to the proposed Combination with Husky Technologies Limited and related private placements.

How much of CMPO does Resolute Compo Holdings report owning?

Resolute Compo Holdings reports 49,290,409 shares, representing 39.4% based on 125,195,366 shares outstanding as of October 30, 2025.

What are Tungsten 2024 LLC and Thomas R. Knott’s reported beneficial holdings in CMPO?

Each reports 49,937,302 shares, or 39.9%, with shared voting and dispositive power as described.

What does John D. Cote report as his beneficial ownership in CMPO?

He reports 51,437,302 shares (41.1%), including 1,500,000 shares held by Ridge Valley LLC.

Is there a Voting Agreement related to the Husky Combination?

Yes. Voting Stockholders agreed to vote all of their shares in favor of the Stock Issuance required for the Transactions.

Is there a lock-up associated with these holders?

Yes. Resolute Compo Holdings and affiliates agreed to a 365‑day lock‑up following closing, subject to customary exceptions.

Did the amendment report changes in share counts?

No. It states the amendment was filed to reflect entry into agreements, not changes in the number of shares owned.