Adam Joseph Lowe - 01 Jan 2026 Form 4 Insider Report for CompoSecure, Inc. (CMPO)

Reporting relationship: Chief Product & Innov. Officer
Issuer ticker: CMPO
Reported as of: 01 Jan 2026
Net transaction value: -$3,222,922
SEC form: 4
Accepted by SEC: 08 Jan 2026, 21:02:01 UTC
Prior SEC filing: 10 Sep 2025
Source filing: View source filing
Reporting owner signature: /s/ Adam Lowe, by attorney-in-fact Steven J. Feder

Key filing fact

Adam Joseph Lowe filed Form 4 for CompoSecure, Inc. (CMPO) on 08 Jan 2026.

Key facts

This page summarizes Adam Joseph Lowe's Form 4 filing for CompoSecure, Inc. (CMPO).
4 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 08 Jan 2026, 21:02.

Change

Previous filing in this sequence was filed on 10 Sep 2025.
Current net transaction value: -$3,222,922.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001885801 Primary reporting owner

Lowe Adam Joseph

Relationship: Chief Product & Innov. Officer
Address: C/O COMPOSECURE, INC., 309 PIERCE STREET, SOMERSET
Signature: /s/ Adam Lowe, by attorney-in-fact Steven J. Feder
Signature date: 08 Jan 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CMPO transaction

Class A Common Stock

Tax liability

Transaction value: $1,544,502
Shares: -80,109
Change %: -5.4%
Price: $19.28
Shares after: 1,414,549
Date: 01 Jan 2026
Ownership: Direct
Footnotes: F1

CMPO transaction

Class A Common Stock

Tax liability

Transaction value: $446,737
Shares: -23,171
Change %: -1.6%
Price: $19.28
Shares after: 1,391,378
Date: 01 Jan 2026
Ownership: Direct
Footnotes: F2

CMPO transaction

Class A Common Stock

Tax liability

Transaction value: $756,451
Shares: -39,235
Change %: -2.8%
Price: $19.28
Shares after: 1,352,143
Date: 01 Jan 2026
Ownership: Direct
Footnotes: F3

CMPO transaction

Class A Common Stock

Tax liability

Transaction value: $475,233
Shares: -24,649
Change %: -1.8%
Price: $19.28
Shares after: 1,327,494
Date: 02 Jan 2026
Ownership: Direct
Footnotes: F4, F5, F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote 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.

Footnote 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.

Footnote 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.

Footnote 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.

Footnote 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.

Footnote 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.