Holt Mary O - 04 Nov 2025 Form 3 Insider Report for CompoSecure, Inc. (CMPO)

Signature
/s/ Mary Holt, by attorney-in-fact Steven J. Feder
Issuer symbol
CMPO
Transactions as of
04 Nov 2025
Net transactions value
$0
Form type
3
Filing time
07 Nov 2025, 20:00:09 UTC

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Holt Mary O. Chief Financial Officer C/O COMPOSECURE, INC., 309 PIERCE STREET, SOMERSET /s/ Mary Holt, by attorney-in-fact Steven J. Feder 07 Nov 2025 0002090217

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding CMPO Class A Common Stock 61,820 04 Nov 2025 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding CMPO Stock Option (Right to Buy) 04 Nov 2025 Class A Common Stock 48,023 $20.22 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents 61,820 shares of Class A Common Stock underlying restricted stock units, which will vest in three equal installments on October 27, 2028, October 27, 2030 and October 27, 2032.
F2 The Stock Options will vest in equal annual installments of 25% each on October 27, 2026, and on the first, second, and third anniversaries thereof.

Remarks:

Exhibit 24 - Power of Attorney