GPGI

SEC source: 0000950142-26-000092 · es260723401_4-lowe.xml · nonDerivative · entry 2

Lowe Adam Joseph · CIK 0001885801 · Chief Product & Innov. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,391,378

F2 · shares: 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.

SEC source: 0000950142-26-000092 · es260723401_4-lowe.xml · nonDerivative · entry 1

Lowe Adam Joseph · CIK 0001885801 · Chief Product & Innov. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,414,549

F1 · shares: 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.

SEC source: 0000950142-26-000094 · es260723702_4-wilk.xml · nonDerivative · entry 1

Wilk Jonathan · CIK 0001885796 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,450,281

F1 · shares: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of performance-vesting restricted stock units ("RSUs") that vested on September 9, 2025, as adjusted in connection with the spin-off of Resolute Holdings Management, Inc. (the "Spin-Off"). These performance-based RSUs were originally granted on March 16, 2022 and vested over the applicable performance period based on the achievement of the provided performance targets, as set forth in the governing award agreement.

SEC source: 0001823144-25-000114 · wk-form4_1757545492.xml · nonDerivative · entry 2

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 781,980

F3 · balance_after: Includes (A) 182,146 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, and (E) 107,129 shares of Class A Common Stock underlying RSUs that will vest ratably on January 1, 2026 and January 1, 2027, 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.

F4 · balance_after: Includes 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.

SEC source: 0001823144-25-000114 · wk-form4_1757545492.xml · nonDerivative · entry 1

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 785,432

F1 · price: Issued to the Reporting Person for no additional consideration pursuant to an earn-out provision in the agreement and plan of merger (the "Merger Agreement") executed in connection with the acquisition by the issuer (f/k/a Roman DBDR Tech Acquisition Corp.) of CompoSecure Holdings, L.L.C. (the "Merger"), which was completed on December 27, 2021.

F2 · price: The value of these shares were established in the Merger Agreement.

SEC source: 0001823144-25-000116 · wk-form4_1757545505.xml · nonDerivative · entry 1

Wilk Jonathan · CIK 0001885796 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · By CompoSecure Employee LLC

Disclosed balance after: 770,295

F1 · kind: Issued to the Reporting Person for no additional consideration pursuant to an earn-out provision in the agreement and plan of merger (the "Merger Agreement") executed in connection with the acquisition by the issuer (f/k/a Roman DBDR Tech Acquisition Corp.) of CompoSecure Holdings, L.L.C. (the "Merger"), which was completed on December 27, 2021.

F2 · price: The value of these shares were established in the Merger Agreement.

F3 · ownership.nature: The reported securities are held directly by CompoSecure Employee LLC, and the Reporting Person (the sole member of CompoSecure Employee LLC) may be deemed to have sole power to vote or dispose of these securities. The Reporting Person may be deemed the beneficial owner of the shares of Class A Common Stock held by CompoSecure Employee LLC because he is its sole member. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein.

SEC source: 0001823144-25-000115 · wk-form4_1757545498.xml · nonDerivative · entry 2

Fitzsimmons Timothy Walter · CIK 0001885866 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 784,875

F3 · balance_after: Includes (A) 348,464 shares of Class A Common Stock owned by the reporting person, (B) 48,071 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) 30,561 shares of Class A Common Stock underlying RSUs that will vest on January 1, 2026, and (E) 81,438 shares of Class A Common Stock underlying RSUs that will vest ratably on each of January 1, 2026, and January 1, 2027, subject in each case to the reporting person's continued service as of the applicable vesting date and the terms of a Transition and Consulting Agreement, dated as of June 10, 2025. The RSUs will be settled into Class A Common Stock upon vesting and may be settled net of shares withheld to pay applicable taxes.

F4 · balance_after: Includes 213,841 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 to the reporting person's continued service as of the applicable vesting date and a Transition and Consulting Agreement, dated as of June 10, 2025. The RSUs will be settled into Class A Common Stock upon vesting and may be settled net of shares withheld to pay applicable taxes.

SEC source: 0001823144-25-000115 · wk-form4_1757545498.xml · nonDerivative · entry 1

Fitzsimmons Timothy Walter · CIK 0001885866 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 804,125

F1 · kind: Issued to the Reporting Person for no additional consideration pursuant to an earn-out provision in the agreement and plan of merger (the "Merger Agreement") executed in connection with the acquisition by the issuer (f/k/a Roman DBDR Tech Acquisition Corp.) of CompoSecure Holdings, L.L.C. (the "Merger"), which was completed on December 27, 2021.

F1 · price: Issued to the Reporting Person for no additional consideration pursuant to an earn-out provision in the agreement and plan of merger (the "Merger Agreement") executed in connection with the acquisition by the issuer (f/k/a Roman DBDR Tech Acquisition Corp.) of CompoSecure Holdings, L.L.C. (the "Merger"), which was completed on December 27, 2021.

F2 · price: The value of these shares were established in the Merger Agreement.

SEC source: 0001823144-25-000113 · wk-form4_1757545485.xml · nonDerivative · entry 2

Lowe Adam Joseph · CIK 0001885801 · Chief Product & Innov. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,494,658

F3 · balance_after: Includes (A) 534,679 shares of Class A Common Stock owned by the reporting person, (B) 175,444 shares of Class A Common Stock underlying the RSUs that will vest on January 1, 2026, (C) 51,064 shares of Class A Common Stock underlying the RSUs that will vest on January 1, 2026, (D) 172,927 shares of Class A Common Stock underlying the RSUs that will vest on January 1, 2026, and (E) 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.

F4 · balance_after: Includes 412,584 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.

SEC source: 0001823144-25-000113 · wk-form4_1757545485.xml · nonDerivative · entry 1

Lowe Adam Joseph · CIK 0001885801 · Chief Product & Innov. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,508,774

F1 · price: Issued to the Reporting Person for no additional consideration pursuant to an earn-out provision in the agreement and plan of merger (the "Merger Agreement") executed in connection with the acquisition by the issuer (f/k/a Roman DBDR Tech Acquisition Corp.) of CompoSecure Holdings, L.L.C. (the "Merger"), which was completed on December 27, 2021.

F2 · price: The value of these shares were established in the Merger Agreement.

SEC source: 0001823144-25-000103 · wk-form4_1756824270.xml · nonDerivative · entry 1

Loree Rebecca Corbin · CIK 0002075526 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,240

F1 · balance_after: The price reported in Column 4 is the weighted average price. These shares were purchased in multiple transactions at prices ranging from $18.99 to $19.16, 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 purchased at each separate price within such range.

SEC source: 0001823144-25-000101 · wk-form4_1755292957.xml · derivative · entry 6

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 97,226 shares

Expires 2030-06-14

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: All of the shares subject to this option are fully vested and exercisable as of the date hereof.

SEC source: 0001823144-25-000101 · wk-form4_1755292957.xml · nonDerivative · entry 4

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 779,062

F2 · price: 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.

F3 · balance_after: 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)

F4 · balance_after: (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.

SEC source: 0001823144-25-000101 · wk-form4_1755292957.xml · nonDerivative · entry 3

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 876,288

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001823144-25-000097 · wk-form4_1755117738.xml · nonDerivative · entry 1

Moriarty Kevin M · CIK 0001565784 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,000

F1 · price: The price reported in Column 4 is the weighted average price. These shares were purchased in multiple transactions at prices ranging from $19.10 to $19.30, 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 purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0001823144-25-000099 · wk-form4_1755201711.xml · nonDerivative · entry 1

Gourbault Amanda Mandy · CIK 0001900531 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 799,668

F1 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $18.90 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 the ranges set forth in this footnote (1) to this Form 4.

F2 · balance_after: Includes (A) 218,960 shares of Class A Common Stock owned by the reporting person, inclusive of shares previously purchased by the reporting person under the Company's Employee Stock Purchase Plan, (B) 63,251 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) 75,000 shares of Class A Common Stock underlying RSUs which will vest on January 1, 2026, (D) 43,658 shares of Class A Common Stock underlying RSUs which will vest on January 1, 2026, (E) 107,129 shares of Class A Common Stock underlying RSUs which will vest ratably on each of January 1, 2026 and January 1, 2027, and (cont'd in FN3)

F3 · balance_after: (con't from FN 2) (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.

SEC source: 0001823144-25-000101 · wk-form4_1755292957.xml · derivative · entry 5

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 97,226

Underlying: Class A Common Stock · 19,899 shares

Expires 2030-06-14

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: All of the shares subject to this option are fully vested and exercisable as of the date hereof.

SEC source: 0001823144-25-000101 · wk-form4_1755292957.xml · nonDerivative · entry 2

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 779,062

F1 · price: 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.

SEC source: 0001823144-25-000101 · wk-form4_1755292957.xml · nonDerivative · entry 1

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 798,961

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001823144-25-000095 · wk-form4_1755117484.xml · nonDerivative · entry 1

Fitzsimmons Timothy Walter · CIK 0001885866 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 759,789

F1 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $18.68 to $18.83, 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 the ranges set forth in this footnote (1) to this Form 4.

F2 · balance_after: Includes (A) 323,378 shares of Class A Common Stock owned by the reporting person, (B) 48,071 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) 30,561 shares of Class A Common Stock underlying RSUs that will vest on January 1, 2026, and (E) 81,438 shares of Class A Common Stock underlying RSUs that will vest ratably on each of January 1, 2026 and January 1, 2027, 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.

F3 · balance_after: Includes 213,841 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 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.

SEC source: 0001823144-25-000082 · wk-form4_1753993930.xml · derivative · entry 1

Loree Rebecca Corbin · CIK 0002075526 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,967

Underlying: Class A Common Stock · 6,967 shares

Expires 2035-07-30

F1 · derivative.exercise_date: The Stock Options will vest in equal annual installments of 25% each on July 30, 2026, and on the first, second, and third anniversaries thereof.

F2 · ownership.direct: The Stock Options were issued pursuant to the Fifth Amended and Restated CompoSecure, Inc. Non-Employee Director Compensation Policy in lieu of the annual cash retainer of $50,000 at the Director's election.

SEC source: 0001823144-25-000080 · wk-form4_1753904498.xml · derivative · entry 1

Moriarty Kevin M · CIK 0001565784 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,998

Underlying: Class A Common Stock · 6,998 shares

Expires 2035-07-29

F1 · derivative.exercise_date: The Stock Options will vest in equal annual installments of 25% each on July 29, 2026, and on the first, second, and third anniversaries thereof.

F2 · balance_after: The Stock Options were issued pursuant to the Fifth Amended and Restated CompoSecure, Inc. Non-Employee Director Compensation Policy in lieu of the annual cash retainer of $50,000 at the Director's election.

SEC source: 0001823144-25-000060 · wk-form4_1752622057.xml · derivative · entry 2

Loree Rebecca Corbin · CIK 0002075526 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,079

Underlying: Class A Common Stock · 27,079 shares

Expires 2035-07-12

F1 · derivative.exercise_date: The Stock Options will vest in equal annual installments of 25% each on July 12, 2026, and on the first, second, and third anniversaries thereof.

SEC source: 0001823144-25-000060 · wk-form4_1752622057.xml · derivative · entry 1

Loree Rebecca Corbin · CIK 0002075526 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,491

Underlying: Class A Common Stock · 29,491 shares

Expires 2035-07-12

F1 · derivative.exercise_date: The Stock Options will vest in equal annual installments of 25% each on July 12, 2026, and on the first, second, and third anniversaries thereof.

SEC source: 0001823144-25-000061 · wk-form4_1752622106.xml · derivative · entry 2

Moriarty Kevin M · CIK 0001565784 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,079

Underlying: Class A Common Stock · 27,079 shares

Expires 2035-07-12

F1 · derivative.exercise_date: The Stock Options will vest in equal annual installments of 25% each on July 12, 2026, and on the first, second, and third anniversaries thereof.

SEC source: 0001823144-25-000061 · wk-form4_1752622106.xml · derivative · entry 1

Moriarty Kevin M · CIK 0001565784 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,491

Underlying: Class A Common Stock · 29,491 shares

Expires 2035-07-12

F1 · derivative.exercise_date: The Stock Options will vest in equal annual installments of 25% each on July 12, 2026, and on the first, second, and third anniversaries thereof.

SEC source: 0001823144-25-000028 · wk-form4_1748619689.xml · derivative · entry 1

Cote John D. · CIK 0002036852 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,074

Underlying: Class A Common Stock · 21,074 shares

Expires 2035-05-28

F1 · derivative.exercise_date: The Stock Options will vest in equal annual installments of 25% each on May 28, 2026, and on the first, second, and third anniversaries thereof.

SEC source: 0001823144-25-000032 · wk-form4_1748619809.xml · derivative · entry 1

Mikkilineni Krishna · CIK 0001488871 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,074

Underlying: Class A Common Stock · 21,074 shares

Expires 2035-05-28

F1 · derivative.exercise_date: The Stock Options will vest in equal annual installments of 25% each on May 28, 2026 and on the first, second, and third anniversaries thereof.

SEC source: 0001823144-25-000031 · wk-form4_1748619763.xml · derivative · entry 1

James Mark R. · CIK 0001417954 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,074

Underlying: Class A Common Stock · 21,074 shares

Expires 2035-05-28

F1 · derivative.exercise_date: The Stock Options will vest in equal annual installments of 25% each on May 28, 2026, and on the first, second, and third anniversaries thereof.

SEC source: 0001823144-25-000029 · wk-form4_1748619711.xml · derivative · entry 1

DEANGELO JOSEPH J · CIK 0001228762 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,074

Underlying: Class A Common Stock · 21,074 shares

Expires 2035-05-28

F1 · derivative.exercise_date: The Stock Options will vest in equal annual installments of 25% each, on May 28, 2026, and on the first, second, and third anniversaries thereof.

SEC source: 0001823144-25-000033 · wk-form4_1748619835.xml · derivative · entry 1

THOMPSON JANE J. · CIK 0001551788 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,074

Underlying: Class A Common Stock · 21,074 shares

Expires 2035-05-28

F1 · derivative.exercise_date: The Stock Options will vest in equal annual installments of 25% each on May 28, 2026, and on the first, second, and third anniversaries thereof.

SEC source: 0001823144-25-000030 · wk-form4_1748619738.xml · derivative · entry 1

Galant Paul · CIK 0001587958 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,074

Underlying: Class A Common Stock · 21,074 shares

Expires 2035-05-28

F1 · derivative.exercise_date: The Stock Options will vest in equal annual installments of 25% each on May 28, 2026, and on the first, second, and third anniversaries thereof.

SEC source: 0001823144-25-000027 · wk-form4_1748619652.xml · derivative · entry 1

Hughes Brian F. · CIK 0001825326 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,074

Underlying: Class A Common Stock · 21,074 shares

Expires 2035-05-28

F1 · derivative.exercise_date: The Stock Options will vest in equal annual installments of 25% each on May 28, 2026, and on the first, second, and third anniversaries thereof.

SEC source: 0000950142-25-000767 · es250603728_4-lowe.xml · nonDerivative · entry 1

Lowe Adam Joseph · CIK 0001885801 · Chief Product & Innov. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,481,036

F1 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $11.00 to $11.05 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 the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Includes (A) 521,057 shares of Class A Common Stock owned by the reporting person, (B) 175,444 shares of Class A Common Stock underlying the RSUs that will vest on January 1, 2026, (C) 51,064 shares of Class A Common Stock underlying the RSUs that will vest on January 1, 2026, (D) 172,927 shares of Class A Common Stock underlying the RSUs that will vest on January 1, 2026, (E) 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, and (F) 412,584 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 to the reporting person's continued service as of the applicable vesting date. (Cont'd in FN 3)

F3 · balance_after: (Cont'd from FN 2) The RSUs will be settled into Class A Common Stock upon vesting and may be settled net of shares withheld to pay applicable taxes.

SEC source: 0000950142-25-000789 · es250605530_4-deangelo.xml · nonDerivative · entry 1

DEANGELO JOSEPH J · CIK 0001228762 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,045

F1 · price: The price reported in Column 4 is the weighted average price. These shares were purchased in multiple transactions at prices ranging from $11.08 to $11.14 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 purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0000950142-25-000749 · es250603728_4-lowe.xml · nonDerivative · entry 1

Lowe Adam Joseph · CIK 0001885801 · Chief Product & Innov. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,486,036

F1 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $10.95 to $11.02 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 the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Includes (A) 526,057 shares of Class A Common Stock owned by the reporting person, (B) 175,444 shares of Class A Common Stock underlying the RSUs that will vest on January 1, 2026, (C) 51,064 shares of Class A Common Stock underlying the RSUs that will vest on January 1, 2026, (D) 172,927 shares of Class A Common Stock underlying the RSUs that will vest on January 1, 2026, (E) 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, and (F) 412,584 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 to the reporting person's continued service as of the applicable vesting date. (Cont'd in FN 3)

F3 · balance_after: (Cont'd from FN 2) The RSUs will be settled into Class A Common Stock upon vesting and may be settled net of shares withheld to pay applicable taxes. Numbers in this footnote reflect adjustments made to the awards in connection with the spin-off of Resolute Holdings Management, Inc.

SEC source: 0001104659-25-018527 · tm257775-1_4seq1.xml · nonDerivative · entry 3

Gourbault Amanda Mandy · CIK 0001900531 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 821,782

F1 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $16.00 to $16.25 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 the ranges set forth in footnote (1) to this Form 4.

F2 · balance_after: Includes (A) 304,325 shares of Class A Common Stock owned by the reporting person, inclusive of shares previously purchased by the reporting person under the Company's Employee Stock Purchase Plan, (B) 75,000 shares of Class A Common Stock underlying restricted stock units ("RSUs") which will vest on January 1, 2026, (C) 43,658 shares of Class A Common Stock underlying RSUs which will vest on January 1, 2026, (D) 107,129 shares of Class A Common Stock underlying RSUs which will vest ratably on each of January 1, 2026 and January 1, 2027, and (E) 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.

SEC source: 0001104659-25-018527 · tm257775-1_4seq1.xml · nonDerivative · entry 2

Gourbault Amanda Mandy · CIK 0001900531 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 831,404

SEC source: 0000950142-25-000588 · es250597876_4-maes.xml · nonDerivative · entry 1

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 779,062

F1 · shares: These shares represent restricted stock units ("RSUs"), which will vest in three equal installments on February 26, 2028, February 26, 2030 and February 26, 2032, subject to the reporting person's continued service as of the applicable vesting date and that will be settled into Class A Common Stock upon vesting and may be settled net of shares withheld to pay applicable taxes.

F2 · balance_after: Includes (A) the shares of Class A Common Stock underlying the RSUs described in footnote (1) above, (B) 179,228 shares of Class A Common Stock owned by the reporting person, (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 (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.

SEC source: 0000950142-25-000589 · es250597877_4-wilk.xml · nonDerivative · entry 1

Wilk Jonathan · CIK 0001885796 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,573,607

F1 · balance_after: These shares represent restricted stock units ("RSUs"), which will vest in three equal installments on February 26, 2028, February 26, 2030 and February 26, 2032, subject to the reporting person's continued service as of the applicable vesting date and that will be settled into Class A Common Stock upon vesting and may be settled net of shares withheld to pay applicable taxes.

F2 · balance_after: Includes (A) the shares of Class A Common Stock underlying the RSUs described in footnote (1) above, (B) 912,449 shares of Class A Common Stock owned directly by the reporting person, (C) 280,862 shares of Class A Common Stock underlying the RSUs that will vest on January 1, 2026, (D) 174,635 shares of Class A Common Stock underlying the RSUs that will vest on January 1, 2026, and (E) 471,505 shares of Class A Common Stock underlying the RSUs that will vest ratably on each of January 1, 2026 and January 1, 2027 respectively, subject 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.

F3 · balance_after: Includes 224,690 performance-vesting RSUs granted on March 16, 2022, which will vest over the applicable performance period based on the achievement of the provided performance targets, as set forth in the governing award agreement, subject to the Reporting Person's continued service as of the applicable vesting date and that will be settled into Class A Common Stock upon vesting.

F4 · balance_after: Includes 523,903 performance-vesting RSUs granted on March 9, 2023, which will vest over the applicable performance period based on the achievement of the provided performance targets, as set forth in the governing award agreement, subject to the Reporting Person's continued service as of the applicable vesting date and that will be settled into Class A Common Stock upon vesting.

F5 · balance_after: Includes 707,258 performance-vesting RSUs granted on March 15, 2024, which will vest over the applicable performance period based on the achievement of the provided performance targets, as set forth in the governing award agreement, subject to the Reporting Person's continued service as of the applicable vesting date and that will be settled into Class A Common Stock upon vesting.

SEC source: 0000950142-25-000586 · es250597874_4-gourbault.xml · nonDerivative · entry 1

Gourbault Amanda Mandy · CIK 0001900531 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 885,033

F1 · balance_after: These shares represent restricted stock units ("RSUs"), which will vest in three equal installments on February 26, 2028, February 26, 2030 and February 26, 2032, subject to the reporting person's continued service as of the applicable vesting date and that will be settled into Class A Common Stock upon vesting and may be settled net of shares withheld to pay applicable taxes.

F2 · balance_after: Includes (A) the shares of Class A Common Stock underlying the RSUs described in footnote (1) above, (B) 304,325 shares of Class A Common Stock owned by the reporting person, inclusive of shares previously purchased by the reporting person under the Company's Employee Stock Purchase Plan, (C) 75,000 shares of Class A Common Stock underlying RSUs which will vest on January 1, 2026, (D) 43,658 shares of Class A Common Stock underlying RSUs which will vest on January 1, 2026, (E) 107,129 shares of Class A Common Stock underlying RSUs which will vest ratably on each of January 1, 2026 and January 1, 2027, and (cont'd in FN3)

F3 · balance_after: (cont'd from FN2) (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.

SEC source: 0000950142-25-000584 · es250597872_4-fitzsimmons.xml · nonDerivative · entry 1

Fitzsimmons Timothy Walter · CIK 0001885866 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 859,789

F1 · shares: These shares represent restricted stock units ("RSUs"), which will vest in three equal installments on February 26, 2028, February 26, 2030 and February 26, 2032, subject to the reporting person's continued service as of the applicable vesting date and that will be settled into Class A Common Stock upon vesting and may be settled net of shares withheld to pay applicable taxes.

F2 · balance_after: Includes (A) the shares of Class A Common Stock underlying the RSUs described in footnote (1) above, (B) 423,378 shares of Class A Common Stock owned by the reporting person, (C) 62,500 shares of Class A Common Stock underlying RSUs that will vest on January 1, 2026, (D) 30,561 shares of Class A Common Stock underlying RSUs that will vest on January 1, 2026, (E) 81,438 shares of Class A Common Stock underlying RSUs that will vest ratably on each of January 1, 2026 and January 1, 2027, and (F) 213,841 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.

SEC source: 0000950142-25-000587 · es250597875_4-lowe.xml · nonDerivative · entry 1

Lowe Adam Joseph · CIK 0001885801 · Chief Product & Innov. Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,365,632

F1 · balance_after: These shares represent restricted stock units ("RSUs"), which will vest in three equal installments on February 26, 2028, February 26, 2030 and February 26, 2032, subject to the reporting person's continued service as of the applicable vesting date and that will be settled into Class A Common Stock upon vesting and may be settled net of shares withheld to pay applicable taxes.

F2 · balance_after: Includes (A) the shares of Class A Common Stock underlying the RSUs described in footnote (1) above, (B) 544,875 shares of Class A Common Stock owned by the reporting person, (C) 150,000 shares of Class A Common Stock underlying the RSUs that will vest on January 1, 2026, (D) 43,658 shares of Class A Common Stock underlying the RSUs that will vest on January 1, 2026, (E) 147,848 shares of Class A Common Stock underlying the RSUs that will vest on January 1, 2026, and (F) 352,749 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 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.

SEC source: 0001104659-25-018527 · tm257775-1_4seq1.xml · nonDerivative · entry 1

Gourbault Amanda Mandy · CIK 0001900531 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 831,504

SEC source: 0000950142-25-000502 · es250594618_4-cotej.xml · nonDerivative · entry 1

Cote John D. · CIK 0002036852 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 879,963

F1 · price: The price reported in Column 4 is the weighted average price. These shares were purchased in multiple transactions at prices ranging from $16.21 to $16.94, 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: The securities of the Issuer are or may be deemed to be beneficially owned by (1) Tungsten 2024 LLC ("Tungsten"), directly, (ii) John Cote, indirectly as a result of being the manager of Tungsten, and (iii) Thomas Knott, indirectly as a result of his consultation right with respect to Tungsten. Each of Tungsten, Mr. John Cote and Mr. Knott disclaim beneficial ownership of any securities reported by any person except to the extent of their pecuniary interest therein.

SEC source: 0000950142-25-000504 · es250594620_4-sponsors.xml · nonDerivative · entry 1

Resolute Compo Holdings LLC · CIK 0002037164 · Director · 10% owner

Tungsten 2024 LLC · CIK 0002037065 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 879,963

F1 · price: The price reported in Column 4 is the weighted average price. These shares were purchased in multiple transactions at prices ranging from $16.21 to $16.94, 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: The securities of the Issuer are or may be deemed to be beneficially owned by (1) Tungsten 2024 LLC ("Tungsten"), directly, (ii) John Cote, indirectly as a result of being the manager of Tungsten, and (iii) Thomas Knott, indirectly as a result of his consultation right with respect to Tungsten. Each of Tungsten, Mr. John Cote and Mr. Knott disclaim beneficial ownership of any securities reported by any person except to the extent of their pecuniary interest therein.

SEC source: 0000950142-25-000503 · es250594619_4-knott.xml · nonDerivative · entry 1

Knott Thomas R. · CIK 0001816476 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 879,963

F1 · price: The price reported in Column 4 is the weighted average price. These shares were purchased in multiple transactions at prices ranging from $16.21 to $16.94, 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 purchased at each separate price within the ranges set forth in this footnote.

F2 · ownership.nature: The securities of the Issuer are or may be deemed to be beneficially owned by (1) Tungsten 2024 LLC ("Tungsten"), directly, (ii) John Cote, indirectly as a result of being the manager of Tungsten, and (iii) Thomas Knott, indirectly as a result of his consultation right with respect to Tungsten. Each of Tungsten, Mr. John Cote and Mr. Knott disclaim beneficial ownership of any securities reported by any person except to the extent of their pecuniary interest therein.

SEC source: 0000950142-25-000405 · es250591881_4-cotej.xml · nonDerivative · entry 3

Cote John D. · CIK 0002036852 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 646,893

F4 · price: The price reported in Column 4 is the weighted average price. These shares were purchased in multiple transactions at prices ranging from $15.54 to $16.12, inclusive.

F2 · ownership.nature: The securities of the Issuer are or may be deemed to be beneficially owned by (1) Tungsten 2024 LLC ("Tungsten"), directly, (ii) John Cote, indirectly as a result of being the manager of Tungsten, and (iii) Thomas Knott, indirectly as a result of his consultation right with respect to Tungsten. Each of Tungsten, Mr. John Cote and Mr. Knott disclaim beneficial ownership of any securities reported by any person except to the extent of their pecuniary interest therein.

SEC source: 0000950142-25-000407 · es250591885_4-sponsors.xml · nonDerivative · entry 3

Resolute Compo Holdings LLC · CIK 0002037164 · Director · 10% owner

Tungsten 2024 LLC · CIK 0002037065 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 646,893

F4 · price: The price reported in Column 4 is the weighted average price. These shares were purchased in multiple transactions at prices ranging from $15.54 to $16.12, inclusive.

F2 · ownership.nature: The securities of the Issuer are or may be deemed to be beneficially owned by (1) Tungsten 2024 LLC ("Tungsten"), directly, (ii) John Cote, indirectly as a result of being the manager of Tungsten, and (iii) Thomas Knott, indirectly as a result of his consultation right with respect to Tungsten. Each of Tungsten, Mr. John Cote and Mr. Knott disclaim beneficial ownership of any securities reported by any person except to the extent of their pecuniary interest therein.

SEC source: 0000950142-25-000406 · es250591884_4-knott.xml · nonDerivative · entry 3

Knott Thomas R. · CIK 0001816476 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 646,893

F4 · price: The price reported in Column 4 is the weighted average price. These shares were purchased in multiple transactions at prices ranging from $15.54 to $16.12, inclusive.

F2 · ownership.nature: The securities of the Issuer are or may be deemed to be beneficially owned by (1) Tungsten 2024 LLC ("Tungsten"), directly, (ii) John Cote, indirectly as a result of being the manager of Tungsten, and (iii) Thomas Knott, indirectly as a result of his consultation right with respect to Tungsten. Each of Tungsten, Mr. John Cote and Mr. Knott disclaim beneficial ownership of any securities reported by any person except to the extent of their pecuniary interest therein.