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

Rhea-AI Filing Summary

CompoSecure, Inc. is reported to have an aggregate of 8,726,591 shares of Class A Common Stock beneficially owned by the LMR reporting group, representing approximately 7.9% of the Class A shares outstanding. The position arises from exercisable warrants held directly by LMR Multi-Strategy Master Fund Limited (4,313,014 warrants) and LMR CCSA Master Fund Ltd (4,413,577 warrants), giving the reporting persons shared voting and dispositive power over the aggregate amount while showing 0 shares of sole voting or sole dispositive power.

The filing identifies the reporting persons as a set of LMR investment managers and two individuals, Ben Levine and Stefan Renold, across multiple jurisdictions, and states that the securities are held in the ordinary course of business and were not acquired to change or influence control of the issuer. The 7.9% figure is calculated using an issuer share count of 102,357,732 Class A shares as reported by the issuer.

Positive

• Material stake disclosed: Aggregate beneficial ownership of 8,726,591 shares, representing 7.9% of Class A stock.
• Detailed warrant breakdown: 4,313,014 warrants held by LMR Multi-Strategy Master Fund and 4,413,577 warrants held by LMR CCSA Master Fund.
• Clear governance posture: Reporting persons declare holdings were not acquired to change or influence control, and provide shared voting/dispositive power details.

Negative

• No sole control: Reporting persons report 0 shares of sole voting power and 0 shares of sole dispositive power.
• Position via warrants: The economic interest arises from exercisable warrants rather than presently held common shares, so immediate ownership is conditional on exercise.

Insights

Financial Analyst

TL;DR: LMR reports a material 7.9% economic interest in CMPO via exercisable warrants, a notable position that may affect investor attention.

The Schedule 13G/A discloses that LMR-affiliated funds hold warrants exercisable into a combined 8,726,591 shares, representing 7.9% of Class A shares based on a 102,357,732 share count. The position is recorded as shared voting and dispositive power with no sole voting or dispositive power, and the filing includes a certification that the securities were not acquired to effect a change of control. For analysts, the key facts are the size of the stake, its form (warrants rather than immediately held common stock), and the aggregation across multiple LMR entities and jurisdictions.

Corporate Governance Expert

TL;DR: A 7.9% aggregated position via warrants is material for governance monitoring; shared control signals potential coordinated voting but not unilateral control.

The filing attributes shared voting and dispositive authority for 8,726,591 shares to LMR investment managers and two individuals, while reporting 0 sole voting or dispositive power. This structure implies influence through collective action rather than direct, unilateral control. The certification that the holdings were not acquired to change control is explicit in the filing. Governance teams should note the form of the interest (exercisable warrants) and the cross-jurisdictional structure of the reporting entities when assessing potential engagement or voting outcomes.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 4)

CompoSecure, Inc.

(Name of Issuer)

Class A Common Stock, par value $0.0001 per share

(Title of Class of Securities)

20459V105

(CUSIP Number)

06/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 20459V105

1

Names of Reporting Persons

LMR Partners LLP

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED KINGDOM

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 8,726,591.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 8,726,591.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,726,591.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.9 %

12

Type of Reporting Person (See Instructions)

IA, PN

SCHEDULE 13G

CUSIP No. 20459V105

1

Names of Reporting Persons

LMR PARTNERS Ltd

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

HONG KONG

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 8,726,591.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 8,726,591.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,726,591.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.9 %

12

Type of Reporting Person (See Instructions)

CO, IA

SCHEDULE 13G

CUSIP No. 20459V105

1

Names of Reporting Persons

LMR Partners LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 8,726,591.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 8,726,591.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,726,591.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.9 %

12

Type of Reporting Person (See Instructions)

IA, OO

SCHEDULE 13G

CUSIP No. 20459V105

1

Names of Reporting Persons

LMR Partners AG

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

SWITZERLAND

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 8,726,591.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 8,726,591.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,726,591.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.9 %

12

Type of Reporting Person (See Instructions)

CO, IA

SCHEDULE 13G

CUSIP No. 20459V105

1

Names of Reporting Persons

LMR PARTNERS (DIFC) Ltd

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED ARAB EMIRATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 8,726,591.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 8,726,591.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,726,591.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.9 %

12

Type of Reporting Person (See Instructions)

CO, IA

SCHEDULE 13G

CUSIP No. 20459V105

1

Names of Reporting Persons

LMR Partners (Ireland) Limited

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

IRELAND

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 8,726,591.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 8,726,591.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,726,591.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.9 %

12

Type of Reporting Person (See Instructions)

CO, IA

SCHEDULE 13G

CUSIP No. 20459V105

1

Names of Reporting Persons

Ben Levine

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED KINGDOM

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 8,726,591.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 8,726,591.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,726,591.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.9 %

12

Type of Reporting Person (See Instructions)

IN, HC

SCHEDULE 13G

CUSIP No. 20459V105

1

Names of Reporting Persons

Stefan Renold

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

SWITZERLAND

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 8,726,591.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 8,726,591.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,726,591.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.9 %

12

Type of Reporting Person (See Instructions)

IN, HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: CompoSecure, Inc.
(b)	Address of issuer's principal executive offices: 309 Pierce Street, Somerset, New Jersey, United States, 08873
Item 2.
(a)	Name of person filing: (i) LMR Partners LLP, LMR Partners Limited, LMR Partners LLC, LMR Partners AG, LMR Partners (DIFC) Limited and LMR Partners (Ireland) Limited (collectively, the "LMR Investment Managers"), which serve as the investment managers to certain funds with respect to the shares of Class A Common Stock, par value $0.0001 per share ("Class A Common Stock") held by certain funds; and (ii) Ben Levine and Stefan Renold, who are ultimately in control of the investment and voting decisions of the LMR Investment Managers with respect to the securities held by certain funds. The foregoing persons are hereinafter sometimes collectively referred to as the "Reporting Persons."
(b)	Address or principal business office or, if none, residence: The address of the principal business office of each of the Reporting Persons is c/o LMR Partners LLP, 9th Floor, Devonshire House, 1 Mayfair Place, London, W1J 8AJ, United Kingdom.
(c)	Citizenship: LMR Partners LLP is a United Kingdom limited liability partnership. LMR Partners Limited is a Hong Kong corporation. LMR Partners LLC is a Delaware limited liability company. LMR Partners AG is a Swiss corporation. LMR Partners (DIFC) Limited is a United Arab Emirates corporation. LMR Partners (Ireland) Limited is a limited company incorporated in Ireland. Ben Levine is a citizen of the United Kingdom. Stefan Renold is a citizen of Switzerland.
(d)	Title of class of securities: Class A Common Stock, par value $0.0001 per share
(e)	CUSIP No.: 20459V105
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
	investment adviser
Item 4.	Ownership
(a)	Amount beneficially owned: The information required by Items 4(a) - (c) is set forth in Rows 5 - 11 of the cover page for each of the Reporting Persons and is incorporated herein by reference. As of June 30, 2025: The Class A Common Stock beneficially owned by the Reporting Persons are directly held by LMR Multi-Strategy Master Fund Limited ("LMR Master Fund") and LMR CCSA Master Fund Ltd ("LMR CCSA Master Fund"). LMR Master Fund directly holds warrants to purchase 4,313,014 shares of Class A Common Stock and LMR CCSA Master Fund directly holds warrants to purchase 4,413,577 shares of Class A Common Stock, with a total of 8,726,591 shares of Class A Common Stock exercisable in the aggregate (the "LMR Shares").
(b)	Percent of class: As of June 30, 2025: The shares of Class A Common Stock held by LMR Master Fund represent approximately 4.0% and the shares of Class A Common Stock held by LMR CCSA Master Fund represent approximately 4.1% and the LMR Shares in the aggregate represent approximately 7.9% of the outstanding shares of Class A Common Stock, based on 102,357,732 shares of Class A Common Stock of the Issuer outstanding as of June 30, 2025, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission on August 7, 2025, plus shares that may be acquired by such Reporting Persons within 60 days.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: As of June 30, 2025, each of the Reporting Persons had sole power to vote or direct the vote of 0 shares of Class A Common Stock.
	(ii) Shared power to vote or to direct the vote: As of June 30, 2025, each of the Reporting Persons had shared power to vote or direct the vote of 8,726,591 shares of Class A Common Stock.
	(iii) Sole power to dispose or to direct the disposition of: As of June 30, 2025, each of the Reporting Persons had sole power to dispose or to direct the disposition of 0 shares of Class A Common Stock.
	(iv) Shared power to dispose or to direct the disposition of: As of June 30, 2025, each of the Reporting Persons had shared power to dispose or to direct the disposition of 8,726,591 shares of Class A Common Stock.
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. The securities beneficially owned by the Reporting Persons are directly held by LMR Master Fund and LMR CCSA Master Fund, for which the LMR Investment Managers serve as the investment managers.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. By signing below I certify that, to the best of my knowledge and belief, the foreign regulatory scheme applicable to LMR Partners LLP, LMR Partners Limited, LMR Partners AG, LMR Partners (DIFC) Limited and LMR Partners (Ireland) Limited is substantially comparable to the regulatory scheme applicable to the functionally equivalent U.S. institution(s). I also undertake to furnish to the Commission staff, upon request, information that would otherwise be disclosed in a Schedule 13D.

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.

LMR Partners LLP

Signature:	/s/ Shane Cullinane
Name/Title:	Shane Cullinane / Chief Operating Officer
Date:	08/14/2025

LMR PARTNERS Ltd

Signature:	/s/ Shane Cullinane
Name/Title:	Shane Cullinane / Chief Operating Officer
Date:	08/14/2025

LMR Partners LLC

Signature:	/s/ Allyson Hanlon
Name/Title:	Allyson Hanlon / US Legal Counsel
Date:	08/14/2025

LMR Partners AG

Signature:	/s/ Shane Cullinane
Name/Title:	Shane Cullinane / Chief Operating Officer
Date:	08/14/2025

LMR PARTNERS (DIFC) Ltd

Signature:	/s/ Shane Cullinane
Name/Title:	Shane Cullinane / Chief Operating Officer
Date:	08/14/2025

LMR Partners (Ireland) Limited

Signature:	/s/ Shane Cullinane
Name/Title:	Shane Cullinane / Chief Operating Officer
Date:	08/14/2025

Ben Levine

Signature:	/s/ Ben Levine
Name/Title:	Ben Levine / Self
Date:	08/14/2025

Stefan Renold

Signature:	/s/ Stefan Renold
Name/Title:	Stefan Renold / Self
Date:	08/14/2025

FAQ

How much of CMPO does LMR report owning?

LMR reports beneficial ownership of 8,726,591 shares, equal to approximately 7.9% of Class A Common Stock.

How many shares are exercisable by each LMR master fund?

LMR Multi-Strategy Master Fund Limited holds warrants exercisable into 4,313,014 shares and LMR CCSA Master Fund Ltd holds warrants exercisable into 4,413,577 shares.

Does LMR have sole voting or dispositive power over these shares?

No. The filing states 0 shares of sole voting power and 0 shares of sole dispositive power, with 8,726,591 shares reported as shared voting and dispositive power.

Are the shares held directly or on behalf of funds?

The securities are directly held by LMR Multi-Strategy Master Fund Limited and LMR CCSA Master Fund Ltd, for which the LMR Investment Managers serve as investment managers.

Does the filing indicate intent to change control of CompoSecure (CMPO)?

The filing includes a certification that the securities were acquired and are held in the ordinary course of business and were not acquired to change or influence control of the issuer.