Sec Form 3 Filing - McLaughlin Steven J. @ CompoSecure, Inc. - 2022-03-09

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

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1. Name and Address of Reporting Person McLaughlin Steven J. 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) 1521 ALTON RD, #345 3. Date of Earliest Transaction (MM/DD/YY) 03/09/2022 (Street) MIAMI BEACH, FL33139 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ 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 Class A Common Stock, $0.0001 par value per share 1,500,000( 1 ) I See Footnote( 2 )

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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other McLaughlin Steven J. 1521 ALTON RD, #345 MIAMI BEACH, FL33139 X Signatures /s/ Steven J. McLaughlin 12/08/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Reporting Person's amount of securities beneficially owned has remained unchanged since the closing of Issuer's SPAC merger with Roman DBDR Tech Acquisition Corp. Reporting Person's beneficial ownership increased to 10.05% as a result of a reduction in Issuer's outstanding Class A Common Stock on March 9, 2022. Reporting Person's beneficial ownership decreased to 9.92% as a result of an increase in Issuer's Class A Common Stock. As of the date of this filing, based on Issuer's Class A Common Stock outstanding as disclosed on its Form 10-Q filed November 4, 2022, Reporting Person's beneficial ownership has further decreased to 9.52%. Reporting Person has not engaged in any purchase or sale of CMPO Class A Common Stock since his initial purchase in connection with Issuer's SPAC merger with Roman DBDR Tech Acquisition Corp. ( 2 )All of Reporting Person's beneficially owned Class A Common Stock is held indirectly through investment vehicles owned by the Steven J. McLaughlin Revocable Trust, of which Reporting Person is the sole trustee.

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).

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