CompoSecure (CMPO): LMR Partners and related entities filed Amendment No. 5 to Schedule 13G reporting passive beneficial ownership in Class A Common Stock. The group reports 22,800 shares issuable upon the exercise of warrants held by two funds, with shared voting and dispositive power over 22,800 shares and sole power over 0.
As of September 30, 2025, the position represents 0.02% of the class, based on 124,961,235 shares outstanding. The filing certifies the securities are held in the ordinary course and not to change or influence control.
Positive
None.
Negative
None.
Insights
Passive 13G/A shows a de minimis 0.02% warrant-based stake.
LMR Partners and affiliates disclosed beneficial ownership tied to warrants for 22,800 shares of CompoSecure Class A. The filing lists shared voting and dispositive power over 22,800 and no sole power, consistent with a coordinated investment management structure.
The stake equals 0.02% of the class as of September 30, 2025, using the issuer’s 124,961,235 shares outstanding baseline. The 13G certification indicates a passive intent, not aimed at influencing control.
There is no stated transaction; any impact depends on future holder actions. Subsequent filings may update ownership if warrant exercises occur or positions change.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 5)
CompoSecure, Inc.
(Name of Issuer)
Class A Common Stock, par value $0.0001 per share
(Title of Class of Securities)
20459V105
(CUSIP Number)
09/30/2025
(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
22,800.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
22,800.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
22,800.00
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)
0.02 %
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
22,800.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
22,800.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
22,800.00
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)
0.02 %
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
22,800.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
22,800.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
22,800.00
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)
0.02 %
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
22,800.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
22,800.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
22,800.00
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)
0.02 %
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
22,800.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
22,800.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
22,800.00
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)
0.02 %
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
22,800.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
22,800.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
22,800.00
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)
0.02 %
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
22,800.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
22,800.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
22,800.00
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)
0.02 %
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
22,800.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
22,800.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
22,800.00
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)
0.02 %
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:
This statement is filed by:
(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 September 30, 2025:
The Class A Common Stock beneficially owned by the Reporting Persons is directly held by LMR Multi-Strategy Master Fund Limited ("LMR Master Fund") and LMR CCSA Master Fund Ltd ("LMR CCSA Master Fund"). Each of LMR Master Fund and LMR CCSA Master Fund directly holds warrants to purchase 11,400 shares of Class A Common Stock, with a total of 22,800 shares of Class A Common Stock issuable upon the exercise of the warrants.
(b)
Percent of class:
As of September 30, 2025:
The shares of Class A Common Stock issuable upon the exercise of the warrants represent less than 0.1% of the outstanding shares of Class A Common Stock, based on 124,961,235 shares of Class A Common Stock of the Issuer outstanding as of September 30, 2025, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission on November 3, 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 September 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 September 30, 2025, each of the Reporting Persons had shared power to vote or direct the vote of 22,800 shares of Class A Common Stock.
(iii) Sole power to dispose or to direct the disposition of:
As of September 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 September 30, 2025, each of the Reporting Persons had shared power to dispose or to direct the disposition of 22,800 shares of Class A Common Stock.
Item 5.
Ownership of 5 Percent or Less of a Class.
Ownership of 5 percent or less of a class
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
Not Applicable
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.
What did LMR Partners disclose about CMPO in this Schedule 13G/A?
They reported beneficial ownership of 22,800 CompoSecure Class A shares issuable upon exercise of warrants, with shared voting and dispositive power over the same amount.
What percentage of CompoSecure (CMPO) does LMR Partners report owning?
The filing states 0.02% of the Class A Common Stock as of September 30, 2025.
How were the 22,800 CMPO shares derived?
They are issuable upon the exercise of warrants held by two LMR-managed funds (11,400 each).
What share count was used to calculate the ownership percentage?
Based on 124,961,235 Class A shares outstanding as of September 30, 2025, per the issuer’s Form 10-Q.
Is LMR Partners taking an activist stance in CMPO?
No. The 13G certification states holdings are in the ordinary course and not for changing or influencing control.
Who are the reporting persons in the CMPO 13G/A?
LMR Partners LLP and affiliated entities, plus individuals Ben Levine and Stefan Renold.
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