CompoSecure, Inc. — Director's Dealing 2026

Jan 9, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CompoSecure, Inc. (CMPO)
CIK: 0001823144
Period of Report: 2026-01-01

Reporting Person: Lowe Adam Joseph (Chief Product & Innov. Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-01-01	Class A Common Stock	F	80109	$19.28	Disposed	1414549	Direct
2026-01-01	Class A Common Stock	F	23171	$19.28	Disposed	1391378	Direct
2026-01-01	Class A Common Stock	F	39235	$19.28	Disposed	1352143	Direct
2026-01-02	Class A Common Stock	F	24649	$19.28	Disposed	1327494	Direct

Footnotes

F1: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 175,444 restricted stock units ("RSUs") that vested on January 1, 2026. These RSUs were originally granted on March 16, 2022 in the aggregate amount of 600,000 RSUs and were adjusted in connection with the spin-off of Resolute Holdings Management, Inc. (the "Spin-Off") to include an additional 25,444 RSUs.

F2: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 51,064 RSUs that vested on January 1, 2026. These RSUs were originally granted on March 8, 2023 in the aggregate amount of 130,976 RSUs and were adjusted in connection with the Spin-Off to include an additional 7,406 RSUs.

F3: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 86,464 RSUs that vested on January 1, 2026. These RSUs were originally granted on March 15, 2024 in the aggregate amount of 221,773 RSUs and were adjusted in connection with the Spin-Off to include an additional 25,079 RSUs, for which the remaining 86,463 RSUs (the "2024 Unvested Time-Vesting RSUs") will continue to vest on January 1, 2027, subject to the reporting person's continued service as of the vesting date.

F4: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 53,329 performance-vesting RSUs that vested on January 1, 2026.

F5: Includes (A) 733,816 shares of Class A Common Stock owned by the reporting person, (B) 86,463 shares of Class A Common Stock underlying the 2024 Unvested Time-Vesting RSUs that will vest on January 1, 2027, and (C) 147,960 shares of Class A Common Stock underlying RSUs that will vest in three equal installments on February 26, 2028, February 26, 2030 and February 26, 2032, 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.

F6: Includes 259,391 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 vesting date of January 1, 2027. The RSUs will be settled into Class A Common Stock upon vesting and may be settled net of shares withheld to pay applicable taxes.