Sec Form 3 Filing - LLR EQUITY PARTNERS IV, L.P. @ CompoSecure, Inc. - 2021-12-27

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person LLR EQUITY PARTNERS IV, L.P. 2. Issuer Name and Ticker or Trading Symbol CompoSecure, Inc. [ CMPO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 309 PIERCE STREET, 3. Date of Earliest Transaction (MM/DD/YY) 12/27/2021 (Street) SOMERSET, NJ08873 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Class B Common Stock, $0.0001 par value ( 1 ) ( 1 ) ( 1 ) Class A Common Stock, $0.0001 par value 33,071,603 I By LLR Equity Partners IV, L.P.( 2 ) Class B Common Stock, $0.0001 par value ( 1 ) ( 1 ) ( 1 ) Class A Common Stock, $0.0001 par value 1,454,805 I By LLR Equity Partners Parallel IV, L.P.( 3 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other LLR EQUITY PARTNERS IV, L.P. 309 PIERCE STREET SOMERSET, NJ08873 X LLR EQUITY PARTNERS PARALLEL IV, L.P. 309 PIERCE STREET SOMERSET, NJ08873 X LLR Capital IV, L.P. 309 PIERCE STREET SOMERSET, NJ08873 X LLR Capital IV, LLC C/O COMPOSECURE, INC. 309 PIERCE STREET SOMERSET, NJ08873 X Signatures /s/ Mitchell Hollin, as member of LLR Capital IV, LLC (the general partner of LLR Capital Partner IV, L.P. (the general partner of LLR Equity Partners IV, L.P.)), by attorney-in-fact Steven J. Feder 12/29/2021 Signature of Reporting Person Date /s/ Mitchell Hollin, as member of LLR Capital IV, LLC (the general partner of LLR Capital Partner IV, L.P. (the general partner of LLR Equity Capital Partners Parallel IV, L.P.)), by attorney-in-fact Steven J. Feder 12/29/2021 Signature of Reporting Person Date /s/ Mitchell Hollin, as member of LLR Capital IV, LLC (the general partner of LLR Capital Partner IV, L.P.), by attorney-in-fact Steven J. Feder 12/29/2021 Signature of Reporting Person Date /s/ Mitchell Hollin, as member of LLR Capital IV, LLC, by attorney-in-fact Steven J. Feder 12/29/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Consists of shares of Class B Common Stock (which are unregistered), and a corresponding number of Class B Common Units issued by CompoSecure Holdings, L.L.C. (a subsidiary of the Issuer) (which are also unregistered) that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, and a corresponding cancellation of the Class B Common Stock, held by the Reporting Persons. ( 2 )Securities held directly by LLR Equity Partners IV, L.P. LLR Capital IV, L.P. is the general partner of LLR Equity Partners IV, L.P. LLR Capital IV, LLC is the general partner of LLR Capital IV, L.P. Each of these entities expressly disclaims beneficial ownership of the securities listed above except to the extent of any pecuniary interest therein. ( 3 )Securities held directly by LLR Equity Partners Parallel IV, L.P. LLR Capital IV, L.P. is the general partner of LLR Equity Partners Parallel IV, L.P. LLR Capital IV, LLC is the general partner of LLR Capital IV, L.P. Each of these entities expressly disclaims beneficial ownership of the securities listed above except to the extent of any pecuniary interest therein.

Remarks: Exhibit 24 - Power of Attorney

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 4(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.