GPGI

SEC source: 0001104659-24-090606 · tm2421884-4_4seq1.xml · nonDerivative · entry 2

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 762,009

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 $11.12, inclusive.

SEC source: 0001104659-24-090606 · tm2421884-4_4seq1.xml · nonDerivative · entry 1

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 812,009

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: 0001104659-24-090605 · tm2421884-3_4seq1.xml · nonDerivative · entry 1

Fitzsimmons Timothy Walter · CIK 0001885866 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 899,623

F1 · price: The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $10.90 to $11.07, inclusive.

SEC source: 0001104659-24-090602 · tm2421884-1_4seq1.xml · nonDerivative · entry 1

Gourbault Amanda Mandy · CIK 0001900531 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 908,641

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 $11.19, 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) 172,223 restricted stock units ("RSUs"), which will vest on January 1, 2025, (B) 172,223 RSUs, which will vest on January 1, 2026, and (C) 53,565 RSUs, which will vest on 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.

F3 · balance_after: Includes 130,976 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 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 160,694 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 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 2,035 shares of Class A Common Stock previously purchased by the reporting person under the Company's Employee Stock Purchase Plan.

SEC source: 0001104659-24-090603 · tm2421884-2_4seq1.xml · derivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 293,923

Underlying: Class A Common Stock · 45,000 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: 0001104659-24-090603 · tm2421884-2_4seq1.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,292,219

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 $11.13, 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) 267,583 restricted stock units ("RSUs"), which will vest on January 1, 2025, (B) 267,583 RSUs, which will vest on January 1, 2026, and (C) 73,925 RSUs, which will vest on 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.

F3 · balance_after: Includes 130,976 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 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 221,773 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 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: 0001104659-24-090603 · tm2421884-2_4seq1.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,337,219

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: 0001104659-24-089690 · tm2421669-1_4seq1.xml · nonDerivative · entry 1

Gourbault Amanda Mandy · CIK 0001900531 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F1 · ownership.nature: Included shares of Class A Common Stock owned by the reporting person's husband.

SEC source: 0001104659-24-077324 · tm2418690-1_4seq1.xml · nonDerivative · entry 1

Howe Niloofar Razi · CIK 0001863923 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,061

F1 · shares: These shares represent restricted stock units ("RSUs"), which are fully vested and granted in lieu of annual cash retainer payments made to eligible non-employee members of the Company's board of directors under the Company RSU Conversion and Deferral Program for Directors, and have been settled into Class A Common Stock.

F2 · balance_after: Reflects the correction of a previous immaterial (74 shares) overstatement of the Reporting Person's beneficial ownership in Table I, Box 5.

SEC source: 0001104659-24-071371 · tm2417131-2_4seq1.xml · nonDerivative · entry 1

THOMPSON JANE J. · CIK 0001551788 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 97,480

F1 · shares: Represents the number of shares that were credited to the Reporting Person's deferred restricted stock unit grants outstanding as of May 20, 2024 (the "Record Date") under the Company's RSU Conversion and Deferral Program for Directors (the "Deferral Program"), as a result of the Company's payment of a $0.30 per share dividend to the holders (as of the Record Date) of the Company's Class A Common Stock on June 11, 2024. In accordance with the Deferral Program, the vesting of these shares is subject to a deferred payment date, which will be on or about (i) the Reporting Person's termination of service, (ii) the occurrence of a Corporate Transaction (as defined in the Deferral Program) or (iii) the Reporting Person's death or Disability (as defined in the Deferral Program).

F2 · balance_after: Reflects the correction of a previous immaterial (74 shares) overstatement of the Reporting Person's beneficial ownership in Table I, Box 5.

SEC source: 0001104659-24-071369 · tm2417131-1_4seq1.xml · nonDerivative · entry 1

Galant Paul · CIK 0001587958 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,288

F1 · shares: Represents the number of shares that were credited to the Reporting Person's deferred restricted stock unit grants outstanding as of May 20, 2024 (the "Record Date") under the Company's RSU Conversion and Deferral Program for Directors (the "Deferral Program"), as a result of the Company's payment of a $0.30 per share dividend to the holders (as of the Record Date) of the Company's Class A Common Stock on June 11, 2024. In accordance with the Deferral Program, the vesting of these shares is subject to a deferred payment date, which will be on or about (i) the Reporting Person's termination of service, (ii) the occurrence of a Corporate Transaction (as defined in the Deferral Program) or (iii) the Reporting Person's death or Disability (as defined in the Deferral Program).

SEC source: 0001104659-24-067769 · tm2416262-2_4seq1.xml · nonDerivative · entry 1

Logan Michele · CIK 0001885798 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,320

F1 · shares: These shares represent restricted stock units ("RSUs"), which will vest in full upon the earlier of (a) the first anniversary of the date of grant, or (b) the date of the Company's 2025 Annual Meeting of Stockholders, subject in each case to the reporting person's continued service as of the applicable vesting date, and may be settled into Class A Common Stock upon vesting.

F2 · balance_after: The total reported above does not include 5,845,653 shares of Class B Common Stock, 732,578 shares of Class B Common Stock, and 12,017,983 shares of Class B Common Stock, and a corresponding number of Class B Common Units issued by CompoSecure Holdings, L.L.C. that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, and a corresponding cancellation of the Class B Common Stock, held by the reporting person, the Carol D. Herslow Credit Shelter Trust B and Ephesians 3:16 Holdings LLC, respectively.

SEC source: 0001104659-24-067766 · tm2416262-1_4seq1.xml · nonDerivative · entry 1

Howe Niloofar Razi · CIK 0001863923 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,728

F1 · shares: These shares represent restricted stock units ("RSUs"), which will vest in full upon the earlier of (a) the first anniversary of the date of grant, or (b) the date of the Company's 2025 Annual Meeting of Stockholders, subject in each case to the reporting person's continued service as of the applicable vesting date, and may be settled into Class A Common Stock upon vesting.

SEC source: 0001104659-24-067774 · tm2416262-4_4seq1.xml · nonDerivative · entry 1

HOLLIN MITCHELL L · CIK 0001331604 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,320

F1 · shares: These shares represent restricted stock units ("RSUs"), which will vest in full upon the earlier of (a) the first anniversary of the date of grant, or (b) the date of the Company's 2025 Annual Meeting of Stockholders, subject in each case to the reporting person's continued service as of the applicable vesting date, and may be settled into Class A Common Stock upon vesting.

F2 · balance_after: The total reported above does not include 28,519,690 and 1,254,568 shares of Class B Common Stock, and a corresponding number of Class B Common Units issued by CompoSecure Holdings, L.L.C. that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, and a corresponding cancellation of the Class B Common Stock, held by LLR Equity Partners IV, L.P. and LLR Equity Partners Parallel IV, L.P., respectively. Mr. Hollin may be deemed the beneficial owner of these shares of Class B Common Stock because he is a member of LLR Capital IV, LLC, the General Partner of LLR Capital IV, L.P., the General Partner of LLR Equity Partners IV, L.P. and LLR Equity Partners Parallel IV, L.P. and Mr. Hollin is LLR Equity Partners IV, L.P.'s and LLR Equity Partners Parallel IV, L.P.'s designee to the Company's board of directors.

SEC source: 0001104659-24-067770 · tm2416262-3_4seq1.xml · nonDerivative · entry 1

Hughes Brian F. · CIK 0001825326 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,377

F1 · shares: These shares represent restricted stock units ("RSUs"), which will vest in full upon the earlier of (a) the first anniversary of the date of grant, or (b) the date of the Company's 2025 Annual Meeting of Stockholders, subject in each case to the reporting person's continued service as of the applicable vesting date, and may be settled into Class A Common Stock upon vesting.

SEC source: 0001104659-24-070011 · tm2416834-1_4seq1.xml · nonDerivative · entry 1

THOMPSON JANE J. · CIK 0001551788 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,377

F1 · shares: These shares represent restricted stock units ("RSUs"), which will vest in full upon the earlier of (a) the first anniversary of the date of grant, or (b) the date of the Company's 2025 Annual Meeting of Stockholders, subject in each case to the reporting person's continued service as of the applicable vesting date, and may be settled into Class A Common Stock upon vesting.

F2 · shares: Pursuant to the Company's RSU Conversion and Deferral Program for Directors (the "Deferral Program"), upon vesting the shares will be subject to a deferred payment date. The deferred payment date will be on or about (i) the reporting person's termination of service, (ii) the occurrence of a Corporate Transaction (as defined in the Deferral Program) or (iii) the reporting person's death or Disability (as defined in the Deferral Program).

SEC source: 0001104659-24-070013 · tm2416834-2_4seq1.xml · nonDerivative · entry 1

Galant Paul · CIK 0001587958 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,380

F1 · shares: These shares represent restricted stock units ("RSUs"), which will vest in full upon the earlier of (a) the first anniversary of the date of grant, or (b) the date of the Company's 2025 Annual Meeting of Stockholders, subject in each case to the reporting person's continued service as of the applicable vesting date, and may be settled into Class A Common Stock upon vesting.

F2 · shares: Pursuant to the Company's RSU Conversion and Deferral Program for Directors (the "Deferral Program"), upon vesting the shares will be subject to a deferred payment date. The deferred payment date will be on or about (i) the reporting person's termination of service, (ii) the occurrence of a Corporate Transaction (as defined in the Deferral Program) or (iii) the reporting person's death or Disability (as defined in the Deferral Program).

SEC source: 0001104659-24-063135 · tm2414891-2_4seq1.xml · derivative · entry 2

Fitzsimmons Timothy Walter · CIK 0001885866 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 565,566 shares

Expires 2025-05-15

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.

F1 · kind: The option exercise reported on this Form 4 was effected pursuant to the CompoSecure, L.L.C. Amended and Restated Equity Incentive Plan (the "Plan"), whereby the reporting person received 319,513 shares of Class A common stock (the "Shares") of CompoSecure, Inc. ("CompoSecure") pursuant to the exercise of the stated option. 246,053 shares from the option were withheld to cover the exercise price of the option and related taxes associated with such option.

F2 · derivative.exercise_date: All of the Shares subject to this option are fully vested and exercisable as of the date hereof.

SEC source: 0001104659-24-063135 · tm2414891-2_4seq1.xml · nonDerivative · entry 1

Fitzsimmons Timothy Walter · CIK 0001885866 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 319,513

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.

F1 · kind: The option exercise reported on this Form 4 was effected pursuant to the CompoSecure, L.L.C. Amended and Restated Equity Incentive Plan (the "Plan"), whereby the reporting person received 319,513 shares of Class A common stock (the "Shares") of CompoSecure, Inc. ("CompoSecure") pursuant to the exercise of the stated option. 246,053 shares from the option were withheld to cover the exercise price of the option and related taxes associated with such option.

SEC source: 0001104659-24-063134 · tm2414891-1_4seq1.xml · derivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 227,845 shares

Expires 2025-05-15

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.

F1 · kind: The option exercise reported on this Form 4 was effected pursuant to the CompoSecure, L.L.C. Amended and Restated Equity Incentive Plan (the "Plan"), whereby the reporting person received 113,552 shares of Class A common stock (the "Shares") of CompoSecure, Inc. ("CompoSecure") pursuant to the exercise of the stated option. 114,323 shares from the option were withheld to cover the exercise price of the option and related taxes associated with such option.

F2 · derivative.exercise_date: All of the Shares subject to this option are fully vested and exercisable as of the date hereof.

SEC source: 0001104659-24-063134 · tm2414891-1_4seq1.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 113,522

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.

F1 · kind: The option exercise reported on this Form 4 was effected pursuant to the CompoSecure, L.L.C. Amended and Restated Equity Incentive Plan (the "Plan"), whereby the reporting person received 113,552 shares of Class A common stock (the "Shares") of CompoSecure, Inc. ("CompoSecure") pursuant to the exercise of the stated option. 114,323 shares from the option were withheld to cover the exercise price of the option and related taxes associated with such option.

SEC source: 0001104659-24-060779 · tm249311-8_4seq1.xml · derivative · entry 3

Logan Michele · CIK 0001885798 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 18,596,214

Underlying: Class A Common Stock · 2,968,065 shares

Expires not disclosed

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.

F1 · derivative.exercise_price: On May 13, 2024, in accordance with the provisions of that certain Exchange Agreement, dated as of December 27, 2021, by and among CompoSecure, Inc., CompoSecure Holdings, L.L.C., and the other parties thereto (the "Exchange Agreement"), Ephesians 3:16 Holdings LLC voluntarily exchanged 2,851,141 shares of Class B Common Units issued by CompoSecure Holdings, L.L.C. for 2,851,141 shares of Class A Common Stock and Carol D. Herslow Credit Shelter Trust B exchanged 116,924 shares of Class B Common Units issued by CompoSecure Holdings, L.L.C. for 116,924 shares of Class A Common Stock. The corresponding number of shares of Class B Common Stock were immediately cancelled upon exchange.

F4 · price: Total amount includes 5,845,653 shares of Class B Common Stock, 732,578 shares of Class B Common Stock, and 12,017,983 shares of Class B Common Stock and a corresponding number of Class B Common Units issued by Holdings that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, pursuant to the Exchange Agreement, held by Ephesians 3:16 Holdings LLC, the Carol D. Herslow Credit Shelter Trust B and Ms. Logan, respectively.

F4 · derivative.exercise_date: Total amount includes 5,845,653 shares of Class B Common Stock, 732,578 shares of Class B Common Stock, and 12,017,983 shares of Class B Common Stock and a corresponding number of Class B Common Units issued by Holdings that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, pursuant to the Exchange Agreement, held by Ephesians 3:16 Holdings LLC, the Carol D. Herslow Credit Shelter Trust B and Ms. Logan, respectively.

F4 · derivative.expiration_date: Total amount includes 5,845,653 shares of Class B Common Stock, 732,578 shares of Class B Common Stock, and 12,017,983 shares of Class B Common Stock and a corresponding number of Class B Common Units issued by Holdings that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, pursuant to the Exchange Agreement, held by Ephesians 3:16 Holdings LLC, the Carol D. Herslow Credit Shelter Trust B and Ms. Logan, respectively.

F4 · balance_after: Total amount includes 5,845,653 shares of Class B Common Stock, 732,578 shares of Class B Common Stock, and 12,017,983 shares of Class B Common Stock and a corresponding number of Class B Common Units issued by Holdings that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, pursuant to the Exchange Agreement, held by Ephesians 3:16 Holdings LLC, the Carol D. Herslow Credit Shelter Trust B and Ms. Logan, respectively.

F3 · ownership.nature: Represents shares held directly by Ms. Michele D. Logan, a member of our board of directors. Ephesians 3:16 Holdings LLC is a manager-managed LLC, and Ms. Logan serves as the sole manager, with the ability to exercise voting and dispositive power with respect to the shares held by Ephesians 3:16 Holdings LLC. Ms. Logan is a Co-Trustee of the Carol D. Herslow Credit Shelter Trust B, and, as a result, may be deemed to share voting and dispositive power with respect to the shares held by such trust. Ms. Logan expressly disclaims beneficial ownership of the shares held by Ephesians 3:16 Holdings LLC and the Carol D. Herslow Credit Shelter Trust B.

F4 · ownership.nature: Total amount includes 5,845,653 shares of Class B Common Stock, 732,578 shares of Class B Common Stock, and 12,017,983 shares of Class B Common Stock and a corresponding number of Class B Common Units issued by Holdings that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, pursuant to the Exchange Agreement, held by Ephesians 3:16 Holdings LLC, the Carol D. Herslow Credit Shelter Trust B and Ms. Logan, respectively.

SEC source: 0001104659-24-060779 · tm249311-8_4seq1.xml · nonDerivative · entry 2

Logan Michele · CIK 0001885798 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,829

F2 · shares: As described in the prospectus supplement, dated May 8, 2024, filed by the Company on May 9, 2024, in connection with an underwritten registered secondary public offering (the "Offering") and sale of Class A Common Stock of CompoSecure, Inc. by certain of its selling stockholders, Ephesians 3:16 Holdings LLC sold 2,851,141 shares of Class A Common Stock and Carol D. Herslow Credit Shelter Trust B sold 116,924 shares of Class A Common Stock at a purchase price of $6.50 per share.

F3 · balance_after: Represents shares held directly by Ms. Michele D. Logan, a member of our board of directors. Ephesians 3:16 Holdings LLC is a manager-managed LLC, and Ms. Logan serves as the sole manager, with the ability to exercise voting and dispositive power with respect to the shares held by Ephesians 3:16 Holdings LLC. Ms. Logan is a Co-Trustee of the Carol D. Herslow Credit Shelter Trust B, and, as a result, may be deemed to share voting and dispositive power with respect to the shares held by such trust. Ms. Logan expressly disclaims beneficial ownership of the shares held by Ephesians 3:16 Holdings LLC and the Carol D. Herslow Credit Shelter Trust B.

SEC source: 0001104659-24-060779 · tm249311-8_4seq1.xml · nonDerivative · entry 1

Logan Michele · CIK 0001885798 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,968,065

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.

F1 · kind: On May 13, 2024, in accordance with the provisions of that certain Exchange Agreement, dated as of December 27, 2021, by and among CompoSecure, Inc., CompoSecure Holdings, L.L.C., and the other parties thereto (the "Exchange Agreement"), Ephesians 3:16 Holdings LLC voluntarily exchanged 2,851,141 shares of Class B Common Units issued by CompoSecure Holdings, L.L.C. for 2,851,141 shares of Class A Common Stock and Carol D. Herslow Credit Shelter Trust B exchanged 116,924 shares of Class B Common Units issued by CompoSecure Holdings, L.L.C. for 116,924 shares of Class A Common Stock. The corresponding number of shares of Class B Common Stock were immediately cancelled upon exchange.

F3 · ownership.nature: Represents shares held directly by Ms. Michele D. Logan, a member of our board of directors. Ephesians 3:16 Holdings LLC is a manager-managed LLC, and Ms. Logan serves as the sole manager, with the ability to exercise voting and dispositive power with respect to the shares held by Ephesians 3:16 Holdings LLC. Ms. Logan is a Co-Trustee of the Carol D. Herslow Credit Shelter Trust B, and, as a result, may be deemed to share voting and dispositive power with respect to the shares held by such trust. Ms. Logan expressly disclaims beneficial ownership of the shares held by Ephesians 3:16 Holdings LLC and the Carol D. Herslow Credit Shelter Trust B.

SEC source: 0001104659-24-060778 · tm249311-7_4seq1.xml · derivative · entry 3

LLR EQUITY PARTNERS IV, L.P. · CIK 0001543672 · 10% owner

LLR EQUITY PARTNERS PARALLEL IV, L.P. · CIK 0001553824 · 10% owner

LLR Capital IV, L.P. · CIK 0001777472 · 10% owner

LLR Capital IV, LLC · CIK 0001777454 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,774,258

Underlying: Class A Common Stock · 4,572,150 shares

Expires not disclosed

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.

F1 · derivative.exercise_price: On May 13, 2024, in accordance with the provisions of that certain Exchange Agreement, dated as of December 27, 2021, by and among CompoSecure, Inc., CompoSecure Holdings, L.L.C., and the other parties thereto (the "Exchange Agreement"), LLR Equity Partners IV, L.P. voluntarily exchanged 4,551,913 shares of Class B Common Units issued by CompoSecure Holdings, L.L.C. for 4,551,913 shares of Class A Common Stock and LLR Equity Partners Parallel IV, L.P. exchanged 200,237 shares of Class B Common Units issued by CompoSecure Holdings, L.L.C. for 200,237 shares of Class A Common Stock. The corresponding number of shares of Class B Common Stock were immediately cancelled upon exchange.

F3 · price: Total amount includes 28,519,690 shares of Class B Common Stock and 1,254,568 shares of Class B Common Stock and a corresponding number of Class B Common Units issued by Holdings that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, pursuant to the Exchange Agreement, held by LLR Equity Partners IV, L.P. and LLR Equity Partners Parallel IV, L.P., respectively. Total amount does not include 20,829 shares of Class A Common Stock owned by Mitchell Hollin, a member of LLR Capital IV, LLC, the General Partner of LLR Capital IV, L.P., the General Partner of LLR Equity Partners IV, L.P. and LLR Equity Partners Parallel IV, L.P. and LLR Equity Partners IV, L.P.'s and LLR Equity Partners Parallel IV, L.P.'s designee to the Company's board of directors. Mr. Hollins disclaims beneficial ownership of the shares held by LLR Equity Partners IV, L.P. and LLR Equity Partners Parallel IV, L.P.

F3 · derivative.exercise_date: Total amount includes 28,519,690 shares of Class B Common Stock and 1,254,568 shares of Class B Common Stock and a corresponding number of Class B Common Units issued by Holdings that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, pursuant to the Exchange Agreement, held by LLR Equity Partners IV, L.P. and LLR Equity Partners Parallel IV, L.P., respectively. Total amount does not include 20,829 shares of Class A Common Stock owned by Mitchell Hollin, a member of LLR Capital IV, LLC, the General Partner of LLR Capital IV, L.P., the General Partner of LLR Equity Partners IV, L.P. and LLR Equity Partners Parallel IV, L.P. and LLR Equity Partners IV, L.P.'s and LLR Equity Partners Parallel IV, L.P.'s designee to the Company's board of directors. Mr. Hollins disclaims beneficial ownership of the shares held by LLR Equity Partners IV, L.P. and LLR Equity Partners Parallel IV, L.P.

F3 · derivative.expiration_date: Total amount includes 28,519,690 shares of Class B Common Stock and 1,254,568 shares of Class B Common Stock and a corresponding number of Class B Common Units issued by Holdings that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, pursuant to the Exchange Agreement, held by LLR Equity Partners IV, L.P. and LLR Equity Partners Parallel IV, L.P., respectively. Total amount does not include 20,829 shares of Class A Common Stock owned by Mitchell Hollin, a member of LLR Capital IV, LLC, the General Partner of LLR Capital IV, L.P., the General Partner of LLR Equity Partners IV, L.P. and LLR Equity Partners Parallel IV, L.P. and LLR Equity Partners IV, L.P.'s and LLR Equity Partners Parallel IV, L.P.'s designee to the Company's board of directors. Mr. Hollins disclaims beneficial ownership of the shares held by LLR Equity Partners IV, L.P. and LLR Equity Partners Parallel IV, L.P.

F3 · balance_after: Total amount includes 28,519,690 shares of Class B Common Stock and 1,254,568 shares of Class B Common Stock and a corresponding number of Class B Common Units issued by Holdings that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, pursuant to the Exchange Agreement, held by LLR Equity Partners IV, L.P. and LLR Equity Partners Parallel IV, L.P., respectively. Total amount does not include 20,829 shares of Class A Common Stock owned by Mitchell Hollin, a member of LLR Capital IV, LLC, the General Partner of LLR Capital IV, L.P., the General Partner of LLR Equity Partners IV, L.P. and LLR Equity Partners Parallel IV, L.P. and LLR Equity Partners IV, L.P.'s and LLR Equity Partners Parallel IV, L.P.'s designee to the Company's board of directors. Mr. Hollins disclaims beneficial ownership of the shares held by LLR Equity Partners IV, L.P. and LLR Equity Partners Parallel IV, L.P.

SEC source: 0001104659-24-060778 · tm249311-7_4seq1.xml · nonDerivative · entry 2

LLR EQUITY PARTNERS IV, L.P. · CIK 0001543672 · 10% owner

LLR EQUITY PARTNERS PARALLEL IV, L.P. · CIK 0001553824 · 10% owner

LLR Capital IV, L.P. · CIK 0001777472 · 10% owner

LLR Capital IV, LLC · CIK 0001777454 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F2 · shares: As described in the prospectus supplement, dated May 8, 2024, filed by the Company on May 9, 2024, in connection with an underwritten registered secondary public offering (the "Offering") and sale of Class A Common Stock of CompoSecure, Inc. by certain of its selling stockholders, LLR Equity Partners IV, L.P. sold 4,551,913 shares of Class A Common Stock and LLR Equity Partners Parallel IV, L.P. sold 200,237 shares of Class A Common Stock at a purchase price of $6.50 per share.

SEC source: 0001104659-24-060778 · tm249311-7_4seq1.xml · nonDerivative · entry 1

LLR EQUITY PARTNERS IV, L.P. · CIK 0001543672 · 10% owner

LLR EQUITY PARTNERS PARALLEL IV, L.P. · CIK 0001553824 · 10% owner

LLR Capital IV, L.P. · CIK 0001777472 · 10% owner

LLR Capital IV, LLC · CIK 0001777454 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,752,150

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.

F1 · kind: On May 13, 2024, in accordance with the provisions of that certain Exchange Agreement, dated as of December 27, 2021, by and among CompoSecure, Inc., CompoSecure Holdings, L.L.C., and the other parties thereto (the "Exchange Agreement"), LLR Equity Partners IV, L.P. voluntarily exchanged 4,551,913 shares of Class B Common Units issued by CompoSecure Holdings, L.L.C. for 4,551,913 shares of Class A Common Stock and LLR Equity Partners Parallel IV, L.P. exchanged 200,237 shares of Class B Common Units issued by CompoSecure Holdings, L.L.C. for 200,237 shares of Class A Common Stock. The corresponding number of shares of Class B Common Stock were immediately cancelled upon exchange.

SEC source: 0001781002-24-000034 · primary_doc.xml · nonDerivative · entry 1

Bleichroeder LP · CIK 0001781002 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 3,797,550

F1 · ownership.nature: This form is filed by Bleichroeder LP. Bleichroeder LP serves as registered investment adviser to 21 April Fund, Ltd., 21 April Fund, LP and other managed accounts. Bleichroeder LP disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that Bleichroeder LP is the beneficial owner of the securities for purposes of Section 16 or for any other purposes.

SEC source: 0001104659-24-042077 · tm249311-6_4seq1.xml · nonDerivative · entry 1

Howe Niloofar Razi · CIK 0001863923 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,237

F1 · shares: These shares represent restricted stock units ("RSUs"), which are fully vested and granted in lieu of annual cash retainer payments made to eligible non-employee members of the Company's board of directors under the Company RSU Conversion and Deferral Program for Directors, and have been settled into Class A Common Stock.

SEC source: 0001104659-24-036361 · tm249311-4_4seq1.xml · nonDerivative · entry 2

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 762,009

F2 · shares: These shares represent 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 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 (A) the RSUs described in footnotes (1) and (2) above, (B) 97,328 shares of Class A Common Stock owned by the reporting person, (C) 125,000 shares of Class A Common Stock underlying the 2022 Unvested Time-Vesting RSUs, (D) 87,317 shares of Class A Common Stock underlying the 2023 Unvested Time-Vesting RSUs and (E) 130,976 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 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: 0001104659-24-036361 · tm249311-4_4seq1.xml · nonDerivative · entry 1

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 601,315

F1 · shares: These shares represent restricted stock units ("RSUs"), which will vest ratably over three years, with 33% of the award vesting on each of January 1, 2025, January 1, 2026 and January 1, 2027, respectively, 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.

F3 · balance_after: Includes (A) the RSUs described in footnote (1) above, (B) 97,328 shares of Class A Common Stock owned by the reporting person, (C) 125,000 shares of Class A Common Stock underlying the 2022 Unvested Time-Vesting RSUs, (D) 87,317 shares of Class A Common Stock underlying the 2023 Unvested Time-Vesting RSUs and (E) 130,976 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 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: 0001104659-24-036362 · tm249311-1_4seq1.xml · nonDerivative · entry 2

Wilk Jonathan · CIK 0001885796 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,760,512

F2 · shares: These shares represent 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 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: The total reported above does not include 1,236,027 shares of Class B Common Stock, and a corresponding number of Class B Common Units issued by CompoSecure Holdings, L.L.C. that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, and a corresponding cancellation of the Class B Common Stock, held by CompoSecure Employee LLC. Mr. Wilk may be deemed the beneficial owner of the 1,236,027 shares of Class B Common Stock because he is the sole member of the CompoSecure Employee LLC.

F5 · balance_after: Includes (A) the RSUs described in footnotes (1) and (2) above, (B) 461,719 shares of Class A Common Stock owned directly by the reporting person, (C) 561,725 shares of Class A Common Stock underlying the 2022 Unvested Time-Vesting RSUs, (D) 349,269 shares of Class A Common Stock underlying the 2023 Unvested Time-Vesting RSUs, (E) 449,380 performance-vested 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 (E) 523,903 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 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: 0001104659-24-036362 · tm249311-1_4seq1.xml · nonDerivative · entry 1

Wilk Jonathan · CIK 0001885796 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,053,254

F1 · shares: These shares represent restricted stock units ("RSUs"), which will vest ratably over three years, with 33% of the award vesting on each of January 1, 2025, January 1, 2026 and January 1, 2027, respectively, 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.

F3 · balance_after: Includes (A) the RSUs described in footnote (1) above, (B) 461,719 shares of Class A Common Stock owned directly by the reporting person, (C) 561,725 shares of Class A Common Stock underlying the 2022 Unvested Time-Vesting RSUs, (D) 349,269 shares of Class A Common Stock underlying the 2023 Unvested Time-Vesting RSUs, (E) 449,380 performance-vested 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 (E) 523,903 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 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: The total reported above does not include 1,236,027 shares of Class B Common Stock, and a corresponding number of Class B Common Units issued by CompoSecure Holdings, L.L.C. that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, and a corresponding cancellation of the Class B Common Stock, held by CompoSecure Employee LLC. Mr. Wilk may be deemed the beneficial owner of the 1,236,027 shares of Class B Common Stock because he is the sole member of the CompoSecure Employee LLC.

SEC source: 0001104659-24-036365 · tm249311-2_4seq1.xml · nonDerivative · entry 2

Gourbault Amanda Mandy · CIK 0001900531 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,039,500

F2 · shares: These shares represent 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 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 (A) the RSUs described in footnotes (1) and (2) above, (B) 349,819 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) 150,000 RSUs underlying the 2022 Unvested Time-Vesting RSUs, (D) 87,317 RSUs underlying the 2023 Unvested Time-Vesting RSUs and (E) 130,976 performance-vesting RSUs originally 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. 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: 0001104659-24-036365 · tm249311-2_4seq1.xml · nonDerivative · entry 1

Gourbault Amanda Mandy · CIK 0001900531 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 878,806

F1 · shares: These shares represent restricted stock units ("RSUs"), which will vest ratably over three years, with 33% of the award vesting on each of January 1, 2025, January 1, 2026 and January 1, 2027, respectively, 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.

F3 · balance_after: Includes (A) the RSUs described in footnote (1) above, (B) 349,819 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) 150,000 RSUs underlying the 2022 Unvested Time-Vesting RSUs, (D) 87,317 RSUs underlying the 2023 Unvested Time-Vesting RSUs and (E) 130,976 performance-vesting RSUs originally 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. 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: 0001104659-24-036363 · tm249311-5_4seq1.xml · nonDerivative · entry 2

Fitzsimmons Timothy Walter · CIK 0001885866 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 620,110

F2 · shares: These shares represent 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 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 (A) the RSUs described in footnotes (1) and (2) above, (B) 107,989 shares of Class A Common Stock owned by the reporting person, (C) 125,000 shares of Class A Common Stock underlying the 2022 Unvested Time-Vesting RSUs, (D) 61,122 shares of Class A Common Stock underlying the 2023 Unvested Time-Vesting RSUs, and (E) 91, 683 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 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: 0001104659-24-036363 · tm249311-5_4seq1.xml · nonDerivative · entry 1

Fitzsimmons Timothy Walter · CIK 0001885866 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 497,952

F1 · shares: These shares represent restricted stock units ("RSUs"), which will vest ratably over three years, with 33% of the award vesting on each of January 1, 2025, January 1, 2026 and January 1, 2027, respectively, 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.

F3 · balance_after: Includes (A) the RSUs described in footnote (1) above, (B) 107,989 shares of Class A Common Stock owned by the reporting person, (C) 125,000 shares of Class A Common Stock underlying the 2022 Unvested Time-Vesting RSUs, (D) 61,122 shares of Class A Common Stock underlying the 2023 Unvested Time-Vesting RSUs, and (E) 91, 683 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 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: 0001104659-24-036367 · tm249311-3_4seq1.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,178,697

F2 · shares: These shares represent 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 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 (A) the RSUs described in footnotes (1) and (2) above, (B) 216,858 shares of Class A Common Stock owned by the reporting person, (C) 300,000 shares of Class A Common Stock underlying the 2022 Unvested Time-Vesting RSUs, (D) 87,317 shares of Class A Common Stock underlying the 2023 Unvested Time-Vesting RSUs, and (E) 130,976 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 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. 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: 0001104659-24-036367 · tm249311-3_4seq1.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 956,924

F1 · shares: These shares represent restricted stock units ("RSUs"), which will vest ratably over three years, with 33% of the award vesting on each of January 1, 2025, January 1, 2026 and January 1, 2027, respectively, 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.

F3 · balance_after: Includes (A) the RSUs described in footnote (1) above, (B) 216,858 shares of Class A Common Stock owned by the reporting person, (C) 300,000 shares of Class A Common Stock underlying the 2022 Unvested Time-Vesting RSUs, (D) 87,317 shares of Class A Common Stock underlying the 2023 Unvested Time-Vesting RSUs, and (E) 130,976 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 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. 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: 0001104659-24-001012 · tm241523-4_4seq1.xml · nonDerivative · entry 2

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 440,621

F2 · shares: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 43,659 restricted stock units ("RSUs") that vested on January 1, 2024. These RSUs were originally granted on March 9, 2023 in the aggregate amount of 130,976 RSUs, for which the remaining 87,317 RSUs (the "2023 Unvested Time-Vesting RSUs") will continue to vest ratably on each of January 1, 2025 and January 1, 2026, respectively, subject to the reporting person's continued service as of the applicable vesting date.

F3 · balance_after: Includes (A) 97,328 shares of Class A Common Stock owned by the reporting person, (B) 125,000 shares of Class A Common Stock underlying the 2022 Unvested Time-Vesting RSUs, (C) 87,317 shares of Class A Common Stock underlying the 2023 Unvested Time-Vesting RSUs and (D) 130,976 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 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.. 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: 0001104659-24-001012 · tm241523-4_4seq1.xml · nonDerivative · entry 1

Maes Gregoire · CIK 0001885789 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 458,216

F1 · shares: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 62,500 restricted stock units ("RSUs") that vested on January 1, 2024. These RSUs were originally granted on March 16, 2022 in the aggregate amount of 250,000 RSUs, for which the remaining 125,000 RSUs (the "2022 Unvested Time-Vesting RSUs") will continue to vest ratably on each of January 1, 2025 and January 1, 2026, respectively, subject to the reporting person's continued service as of the applicable vesting date.

SEC source: 0001104659-24-001003 · tm241523-2_4seq1.xml · nonDerivative · entry 2

Wilk Jonathan · CIK 0001885796 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,345,996

F2 · shares: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 174,634 RSUs that vested on January 1, 2024. These RSUs were originally granted on March 9, 2023 in the aggregate amount of 523,903 RSUs, for which the remaining 349,269 RSUs (the "2023 Unvested Time-Vesting RSUs") will continue to vest ratably on each of January 1, 2025 and January 1, 2026.

F3 · balance_after: Includes (A) 461,719 shares of Class A Common Stock owned directly by the reporting person, (B) 561,725 shares of Class A Common Stock underlying the 2022 Unvested Time-Vesting RSUs, (C) 349,269 shares of Class A Common Stock underlying the 2023 Unvested Time-Vesting RSUs, (D) 449,380 performance-vested 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

F4 · balance_after: (E) 523,903 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 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. The RSUs will be settled into Class A Common Stock upon vesting and may be settled net of shares withheld to pay applicable taxes.

F5 · balance_after: The total reported above does not include 1,236,027 shares of Class B Common Stock, and a corresponding number of Class B Common Units issued by CompoSecure Holdings, L.L.C. that are exchangeable for Class A Common Stock on a share-for-share basis, subject to adjustment, and a corresponding cancellation of the Class B Common Stock, held by CompoSecure Employee LLC. Mr. Wilk may be deemed the beneficial owner of the 1,236,027 shares of Class B Common Stock because he is the sole member of the CompoSecure Employee LLC.

SEC source: 0001104659-24-001003 · tm241523-2_4seq1.xml · nonDerivative · entry 1

Wilk Jonathan · CIK 0001885796 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,408,857

F1 · shares: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 280,863 restricted stock units ("RSUs") that vested on January 1, 2024. These RSUs were originally granted on March 16, 2022 in the aggregate amount of 1,123,451 RSUs, for which the remaining 561,725 RSUs (the "2022 Unvested Time-Vesting RSUs") will continue to vest ratably on each of January 1, 2025 and January 1, 2026, respectively, subject to the reporting person's continued service as of the applicable vesting date.

SEC source: 0001104659-24-001007 · tm241523-5_4seq1.xml · nonDerivative · entry 3

Gourbault Amanda Mandy · CIK 0001900531 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 718,112

F3 · shares: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 43,659 restricted stock units ("RSUs") that vested on January 1, 2024. These RSUs were originally granted on March 9, 2023 in the aggregate amount of 130,976,000 RSUs, for which the remaining 87,317 RSUs (the "2023 Unvested Time-Vesting RSUs") will continue to vest ratably on each of January 1, 2025 and January 1, 2026, respectively, subject to the reporting person's continued service as of the applicable vesting date.

F4 · balance_after: Includes (A) 349,819 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) 150,000 RSUs underlying the 2022 Unvested Time-Vesting RSUs, (C) 87,317 RSUs underlying the 2023 Unvested Time-Vesting RSUs and (D) 130,976 performance-vesting RSUs originally 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. 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: 0001104659-24-001007 · tm241523-5_4seq1.xml · nonDerivative · entry 2

Gourbault Amanda Mandy · CIK 0001900531 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 730,520

F2 · shares: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 75,000 restricted stock units ("RSUs") that vested on January 1, 2024 These RSUs were originally granted on March 16, 2022 in the aggregate amount of 300,000 RSUs, for which the remaining 150,000 RSUs (the "2022 Unvested Time-Vesting RSUs") will continue to vest ratably on each of January 1, 2025 and January 1, 2026, respectively, subject to the reporting person's continued service as of the applicable vesting date.

SEC source: 0001104659-24-001007 · tm241523-5_4seq1.xml · nonDerivative · entry 1

Gourbault Amanda Mandy · CIK 0001900531 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 791,245

F1 · shares: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 200,000 restricted stock units ("RSUs") that vested on January 1, 2024. These RSUs were originally granted on March 16, 2022 in the aggregate amount of 300,000 RSUs.

SEC source: 0001104659-24-001009 · tm241523-3_4seq1.xml · nonDerivative · entry 2

Fitzsimmons Timothy Walter · CIK 0001885866 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 385,794

F2 · shares: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 30,561 restricted stock units ("RSUs") that vested on January 1, 2024. These RSUs were originally granted on March 9, 2023 in the aggregate amount of 91,683 RSUs, for which the remaining 61,122 RSUs (the "2023 Unvested Time-Vesting RSUs") will continue to vest ratably on each of January 1, 2025 and January 1, 2026, respectively, subject to the reporting person's continued service as of the applicable vesting date.

F3 · balance_after: Includes (A) 107,989 shares of Class A Common Stock owned by the reporting person, (B) 125,000 shares of Class A Common Stock underlying the 2022 Unvested Time-Vesting RSUs, (C) 61,122 shares of Class A Common Stock underlying the 2023 Unvested Time-Vesting RSUs, and (D) 91, 683 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 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. 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: 0001104659-24-001009 · tm241523-3_4seq1.xml · nonDerivative · entry 1

Fitzsimmons Timothy Walter · CIK 0001885866 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 394,480

F1 · shares: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 62,500 restricted stock units ("RSUs") that vested on January 1, 2024. These RSUs were originally granted on March 16, 2022 in the aggregate amount of 250,000 RSUs, for which the remaining 125,000 RSUs (the "2022 Unvested Time-Vesting RSUs") will continue to vest ratably on each of January 1, 2025 and January 1, 2026, respectively, subject to the reporting person's continued service as of the applicable vesting date.

SEC source: 0001104659-24-001011 · tm241523-6_4seq1.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 735,151

F2 · shares: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 43,659 restricted stock units ("RSUs") that vested on January 1, 2024. These RSUs were originally granted on March 9, 2023 in the aggregate amount of 130,976 RSUs, for which the remaining 87,317 RSUs (the "2023 Unvested Time-Vesting RSUs") will continue to vest ratably on each of, January 1, 2025 and January 1, 2026, respectively, subject to the reporting person's continued service as of the applicable vesting date.

F3 · balance_after: Includes (A) 216,858 shares of Class A Common Stock owned by the reporting person, (B) 300,000 shares of Class A Common Stock underlying the 2022 Unvested Time-Vesting RSUs, (C) 87,317 shares of Class A Common Stock underlying the 2023 Unvested Time-Vesting RSUs, and (D) 130,976 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 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. 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: 0001104659-24-001011 · tm241523-6_4seq1.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 750,679

F1 · shares: Reflects the number of shares withheld in satisfaction of applicable tax withholding obligations in connection with the net settlement of 150,000 restricted stock units ("RSUs") that vested on January 1, 2024. These RSUs were originally granted on March 16, 2022 in the aggregate amount of 600,000 RSUs, for which the remaining 300,000 RSUs (the "2022 Unvested Time-Vesting RSUs") will continue to vest ratably on each of January 1, 2025 and January 1, 2026, respectively, subject to the reporting person's continued service as of the applicable vesting date.