[Form 4] CompoSecure, Inc. Insider Trading Activity

Rhea-AI Filing Summary

CompoSecure, Inc. insider Gregoire Maes reported option exercises and open-market sales of Class A common stock on 08/13/2025 and 08/14/2025. Maes exercised a total of 117,125 shares (19,899 on 08/13 and 97,226 on 08/14) at an exercise price of $5.44 per share via vested stock options and immediately sold those same amounts in multiple transactions at weighted average sale prices of $19.26 (08/13 range $19.25–$19.32) and $19.36 (08/14 range $19.25–$19.60). Following these transactions, Maes beneficially owns 779,062 Class A shares, which include vested shares and various restricted stock units and performance-vesting RSUs documented in the filing.

Positive

• Exercised vested options at $5.44, indicating utilization of compensation-linked equity
• Retains substantial ownership of 779,062 Class A shares including multiple RSU tranches and performance-vesting RSUs

Negative

• Sold 117,125 shares in open-market transactions at weighted averages of $19.26 and $19.36, reducing immediately held free-trading shares
• Significant portion of ownership is tied to performance-vesting RSUs, which are contingent on future targets and continued service

Insights

Securities Analyst

TL;DR: Insider exercised vested options at $5.44 and sold shares at ~$19.3, retaining substantial ownership through RSUs and performance awards.

The reporting shows option exercises followed by immediate sales, a routine liquidity event where the economic gain equals the spread between the $5.44 exercise price and the ~$19.3 sale price. The reporting person still holds 779,062 Class A shares including multiple tranches of restricted stock units and 291,670 performance-vesting RSUs, indicating continued exposure to the issuer's long-term performance despite the sales. No additional derivative grants or new equity compensation terms are disclosed beyond the vested options and outstanding RSUs.

Corporate Governance Expert

TL;DR: Transactions are disclosed per Section 16: vested options were exercised and sold, while substantial unvested and performance-based awards remain.

The Form 4 documents compliant reporting of exercises and dispositions. The disclosure clarifies vesting schedules for multiple RSU tranches and confirms that the stock options exercised were fully vested and exercisable. The retention of significant RSUs and performance awards suggests alignment of the reporting person with longer-term shareholder outcomes, while the sales realize gains on vested positions. The filing contains standard explanatory language and commitments to provide trade-level price details on request.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Maes Gregoire

(Last) (First) (Middle)

C/O COMPOSECURE, INC.

309 PIERCE STREET

(Street)

SOMERSET NJ 08873

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
CompoSecure, Inc. [ CMPO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Operating Officer

3. Date of Earliest Transaction (Month/Day/Year)
08/13/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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	08/13/2025		M		19,899	A	$5.44	798,961	D
Class A Common Stock	08/13/2025		S		19,899	D	$19.26(1)	779,062	D
Class A Common Stock	08/14/2025		M		97,226	A	$5.44	876,288	D
Class A Common Stock	08/14/2025		S		97,226	D	$19.36(2)	779,062(3)(4)	D

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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
Stock Option (Right to Buy)	$5.44	08/13/2025		M			19,899	(5)	06/14/2030	Class A Common Stock	19,899	$0	97,226	D
Stock Option (Right to Buy)	$5.44	08/14/2025		M			97,226	(5)	06/14/2030	Class A Common Stock	97,226	$0	0	D

Explanation of Responses:

1. The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $19.25 to $19.32, inclusive. The reporting person undertakes to provide CompoSecure, Inc. (the "Issuer"), any securityholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.

2. The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $19.25 to $19.60, inclusive. The reporting person undertakes to provide the Issuer, any securityholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.

3. Includes (A) 179,228 shares of Class A Common Stock owned by the reporting person, (B) 94,877 shares of Class A Common Stock underlying restricted stock units ("RSUs"), which will vest in three equal installments on February 26, 2028, February 26, 2030 and February 26, 2032, (C) 62,500 shares of Class A Common Stock underlying RSUs that will vest on January 1, 2026, (D) 43,658 shares of Class A Common Stock underlying RSUs that will vest on January 1, 2026, (E) 107,129 shares of Class A Common Stock underlying RSUs that will vest ratably on January 1, 2026 and January 1, 2027, and (cont'd in FN 4)

4. (con't from FN 3) (F) 291,670 performance-vesting RSUs, which will vest over the applicable performance period based on the achievement of the provided performance targets, as set forth in the respective governing award agreement, subject in each case to the reporting person's continued service as of the applicable vesting date. The RSUs will be settled into Class A Common Stock upon vesting and may be settled net of shares withheld to pay applicable taxes.

5. All of the shares subject to this option are fully vested and exercisable as of the date hereof.

Remarks:

	/s/ Gregoire Maes, by attorney-in-fact Steven J. Feder	08/15/2025
	** Signature of Reporting Person	Date
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.

FAQ

What did CompoSecure (CMPO) insider Gregoire Maes do?

The filing reports that Gregoire Maes exercised 117,125 stock options and sold the same number of Class A shares in multiple transactions on 08/13/2025 and 08/14/2025.

At what prices were the shares sold?

Shares sold on 08/13/2025 had a weighted average price of $19.26 (individual trades ranged $19.25–$19.32) and on 08/14/2025 had a weighted average price of $19.36 (range $19.25–$19.60).

What was the exercise price for the options exercised?

The exercised stock options had an exercise price of $5.44 per share and were fully vested and exercisable as reported.

How many shares does Maes beneficially own after the transactions?

Following the reported transactions, Maes beneficially owns 779,062 Class A common shares, including vested shares, multiple RSU tranches, and performance-vesting RSUs.

Are there unvested or performance-based awards disclosed?

Yes. The filing discloses several RSU tranches with scheduled vesting dates and 291,670 performance-vesting RSUs that vest based on achievement of specified performance targets.