MIR

SEC source: 0001628280-25-000088 · wk-form4_1735855368.xml · nonDerivative · entry 2

Markopoulos Jody · CIK 0001854410 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,962

F1 · shares: These shares were issued in connection with the Reporting Person's election to receive his or her quarterly retainer for director services in the form of vested shares rather than cash.

SEC source: 0001628280-24-052639 · wk-form4_1735679587.xml · nonDerivative · entry 1

Schopfer Brian · CIK 0001885701 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 887,795

F1 · shares: Represents shares that have been withheld by the Issuer in satisfaction of tax withholding obligations in connection with the vesting of restricted stock units (RSUs) previously granted to the Reporting Person. Such withholding was mandated by the Issuer by a policy adopted in advance and does not represent a discretionary trade by the Reporting Person.

SEC source: 0001628280-24-052641 · wk-form4_1735679647.xml · nonDerivative · entry 1

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,915,203

F1 · shares: Represents shares that have been withheld by the Issuer in satisfaction of tax withholding obligations in connection with the vesting of restricted stock units (RSUs) previously granted to the Reporting Person. Such withholding was mandated by the Issuer by a policy adopted in advance and does not represent a discretionary trade by the Reporting Person.

SEC source: 0001628280-24-052637 · wk-form4_1735679523.xml · nonDerivative · entry 1

Ulrich Alison · CIK 0002013994 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,697

F1 · shares: Represents shares that have been withheld by the Issuer in satisfaction of tax withholding obligations in connection with the vesting of restricted stock units (RSUs) previously granted to the Reporting Person. Such withholding was mandated by the Issuer by a policy adopted in advance and does not represent a discretionary trade by the Reporting Person.

SEC source: 0001628280-24-052635 · wk-form4_1735679483.xml · nonDerivative · entry 1

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,359

F1 · shares: Represents shares that have been withheld by the Issuer in satisfaction of tax withholding obligations in connection with the vesting of restricted stock units (RSUs) previously granted to the Reporting Person. Such withholding was mandated by the Issuer by a policy adopted in advance and does not represent a discretionary trade by the Reporting Person.

SEC source: 0001628280-24-052109 · wk-form4_1734646828.xml · derivative · entry 3

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 2,400,000 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: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 2,400,000 Sponsor Units satisfied the performance vesting conditions on December 17, 2024, when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $16.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on December 18, 2024.

F1 · price: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 2,400,000 Sponsor Units satisfied the performance vesting conditions on December 17, 2024, when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $16.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on December 18, 2024.

F1 · derivative.exercise_date: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 2,400,000 Sponsor Units satisfied the performance vesting conditions on December 17, 2024, when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $16.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on December 18, 2024.

F1 · derivative.expiration_date: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 2,400,000 Sponsor Units satisfied the performance vesting conditions on December 17, 2024, when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $16.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on December 18, 2024.

SEC source: 0001628280-24-052109 · wk-form4_1734646828.xml · nonDerivative · entry 1

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,955,790

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 · price: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 2,400,000 Sponsor Units satisfied the performance vesting conditions on December 17, 2024, when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $16.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on December 18, 2024.

SEC source: 0001628280-24-052106 · wk-form4_1734646760.xml · derivative · entry 3

Schopfer Brian · CIK 0001885701 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 525,000 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: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 525,000 Sponsor Units satisfied the performance vesting conditions on December 17, 2024, when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $16.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on December 18, 2024.

F1 · price: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 525,000 Sponsor Units satisfied the performance vesting conditions on December 17, 2024, when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $16.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on December 18, 2024.

F1 · derivative.exercise_date: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 525,000 Sponsor Units satisfied the performance vesting conditions on December 17, 2024, when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $16.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on December 18, 2024.

F1 · derivative.expiration_date: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 525,000 Sponsor Units satisfied the performance vesting conditions on December 17, 2024, when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $16.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on December 18, 2024.

SEC source: 0001628280-24-052106 · wk-form4_1734646760.xml · nonDerivative · entry 1

Schopfer Brian · CIK 0001885701 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 896,333

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 · price: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 525,000 Sponsor Units satisfied the performance vesting conditions on December 17, 2024, when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $16.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on December 18, 2024.

SEC source: 0001628280-24-051697 · wk-form4_1734472754.xml · nonDerivative · entry 1

KUO JOHN W · CIK 0001330270 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,788

F1 · kind: Represents a bona fide gift of shares of Class A Common Stock to a charitable donor advised fund.

SEC source: 0001628280-24-051696 · wk-form4_1734472724.xml · nonDerivative · entry 1

Eloy Loic · CIK 0001912434 · Technologies Group President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 133,663

SEC source: 0001628280-24-047958 · wk-form4_1731621852.xml · derivative · entry 6

Kingsley Lawrence D · CIK 0001301427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 1,050,000 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: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person were subject to both service- and performance-vesting conditions. 1,050,000 Sponsor Units satisfied the performance vesting conditions on November 12, 2024 when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $14.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on November 13, 2024.

F1 · price: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person were subject to both service- and performance-vesting conditions. 1,050,000 Sponsor Units satisfied the performance vesting conditions on November 12, 2024 when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $14.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on November 13, 2024.

F1 · derivative.exercise_date: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person were subject to both service- and performance-vesting conditions. 1,050,000 Sponsor Units satisfied the performance vesting conditions on November 12, 2024 when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $14.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on November 13, 2024.

F1 · derivative.expiration_date: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person were subject to both service- and performance-vesting conditions. 1,050,000 Sponsor Units satisfied the performance vesting conditions on November 12, 2024 when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $14.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on November 13, 2024.

SEC source: 0001628280-24-047958 · wk-form4_1731621852.xml · nonDerivative · entry 3

Kingsley Lawrence D · CIK 0001301427 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lawrence D. Kingsley Revocable Trust

Disclosed balance after: 4,200,000

F2 · ownership.direct: On November 13, 2024, the Reporting Person transferred 1,050,000 shares of Class A Common Stock of the Issuer to the Lawrence D. Kingsley Revocable Trust for no consideration.

SEC source: 0001628280-24-047958 · wk-form4_1731621852.xml · nonDerivative · entry 2

Kingsley Lawrence D · CIK 0001301427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,310

F2 · ownership.direct: On November 13, 2024, the Reporting Person transferred 1,050,000 shares of Class A Common Stock of the Issuer to the Lawrence D. Kingsley Revocable Trust for no consideration.

SEC source: 0001628280-24-047958 · wk-form4_1731621852.xml · nonDerivative · entry 1

Kingsley Lawrence D · CIK 0001301427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,103,310

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 · price: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person were subject to both service- and performance-vesting conditions. 1,050,000 Sponsor Units satisfied the performance vesting conditions on November 12, 2024 when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $14.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on November 13, 2024.

SEC source: 0001628280-24-047957 · wk-form4_1731621845.xml · derivative · entry 4

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,400,000

Underlying: Class A Common Stock · 800,000 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: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 800,000 Sponsor Units satisfied the performance vesting conditions on November 12, 2024 when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $14.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on November 13, 2024.

F3 · price: The remaining Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. The remaining Sponsor Units service-vested on October 20, 2024. The remaining Sponsor Units will performance-vest when the volume weighted average price per share of Class A Common Stock of the Issuer meets or exceeds $16.00 for at least 20 trading days in a 30 consecutive trading day period, provided that such date occurs on or before October 20, 2026. The Reporting Person is not entitled to distributions in respect of Sponsor Units until all applicable vesting conditions are satisfied.

F3 · derivative.exercise_date: The remaining Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. The remaining Sponsor Units service-vested on October 20, 2024. The remaining Sponsor Units will performance-vest when the volume weighted average price per share of Class A Common Stock of the Issuer meets or exceeds $16.00 for at least 20 trading days in a 30 consecutive trading day period, provided that such date occurs on or before October 20, 2026. The Reporting Person is not entitled to distributions in respect of Sponsor Units until all applicable vesting conditions are satisfied.

F3 · derivative.expiration_date: The remaining Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. The remaining Sponsor Units service-vested on October 20, 2024. The remaining Sponsor Units will performance-vest when the volume weighted average price per share of Class A Common Stock of the Issuer meets or exceeds $16.00 for at least 20 trading days in a 30 consecutive trading day period, provided that such date occurs on or before October 20, 2026. The Reporting Person is not entitled to distributions in respect of Sponsor Units until all applicable vesting conditions are satisfied.

SEC source: 0001628280-24-047957 · wk-form4_1731621845.xml · nonDerivative · entry 1

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,555,790

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 · price: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 800,000 Sponsor Units satisfied the performance vesting conditions on November 12, 2024 when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $14.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on November 13, 2024.

SEC source: 0001628280-24-047956 · wk-form4_1731621825.xml · derivative · entry 3

Schopfer Brian · CIK 0001885701 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 525,000

Underlying: Class A Common Stock · 175,000 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: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 175,000 Sponsor Units satisfied the performance vesting conditions on November 12, 2024 when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $14.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on November 13, 2024.

F2 · price: The remaining Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. The remaining Sponsor Units service-vested on October 20, 2024. The remaining Sponsor Units will performance-vest when the volume weighted average price per share of Class A Common Stock of the Issuer meets or exceeds $16.00 for at least 20 trading days in a 30 consecutive trading day period, provided that such date occurs on or before October 20, 2026. The Reporting Person is not entitled to distributions in respect of Sponsor Units until all applicable vesting conditions are satisfied.

F2 · derivative.exercise_date: The remaining Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. The remaining Sponsor Units service-vested on October 20, 2024. The remaining Sponsor Units will performance-vest when the volume weighted average price per share of Class A Common Stock of the Issuer meets or exceeds $16.00 for at least 20 trading days in a 30 consecutive trading day period, provided that such date occurs on or before October 20, 2026. The Reporting Person is not entitled to distributions in respect of Sponsor Units until all applicable vesting conditions are satisfied.

F2 · derivative.expiration_date: The remaining Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. The remaining Sponsor Units service-vested on October 20, 2024. The remaining Sponsor Units will performance-vest when the volume weighted average price per share of Class A Common Stock of the Issuer meets or exceeds $16.00 for at least 20 trading days in a 30 consecutive trading day period, provided that such date occurs on or before October 20, 2026. The Reporting Person is not entitled to distributions in respect of Sponsor Units until all applicable vesting conditions are satisfied.

SEC source: 0001628280-24-047956 · wk-form4_1731621825.xml · nonDerivative · entry 1

Schopfer Brian · CIK 0001885701 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 371,333

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 · price: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 175,000 Sponsor Units satisfied the performance vesting conditions on November 12, 2024 when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $14.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on November 13, 2024.

SEC source: 0001628280-24-045842 · wk-form4_1730932978.xml · nonDerivative · entry 2

Kingsley Lawrence D · CIK 0001301427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,310

F2 · ownership.direct: On November 5, 2024, the Reporting Person transferred 3,150,000 shares of Class A Common Stock of the Issuer to the Lawrence D. Kingsley Revocable Trust for no consideration.

SEC source: 0001628280-24-045842 · wk-form4_1730932978.xml · derivative · entry 6

Kingsley Lawrence D · CIK 0001301427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,050,000

Underlying: Class A Common Stock · 3,150,000 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: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 3,150,000 Sponsor Units satisfied the performance vesting conditions on November 4, 2024 when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $12.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on November 5, 2024.

F5 · price: The remaining Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. The remaining Sponsor Units service-vested on October 20, 2023. The remaining Sponsor Units will performance-vest when the volume weighted average price per share of Class A Common Stock of the Issuer meets or exceeds $14.00 for at least 20 trading days in a 30 consecutive trading day period, provided that such date occurs on or before October 20, 2026. The Reporting Person is not entitled to distributions in respect of Sponsor Units until all applicable vesting conditions are satisfied.

F5 · derivative.exercise_date: The remaining Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. The remaining Sponsor Units service-vested on October 20, 2023. The remaining Sponsor Units will performance-vest when the volume weighted average price per share of Class A Common Stock of the Issuer meets or exceeds $14.00 for at least 20 trading days in a 30 consecutive trading day period, provided that such date occurs on or before October 20, 2026. The Reporting Person is not entitled to distributions in respect of Sponsor Units until all applicable vesting conditions are satisfied.

F5 · derivative.expiration_date: The remaining Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. The remaining Sponsor Units service-vested on October 20, 2023. The remaining Sponsor Units will performance-vest when the volume weighted average price per share of Class A Common Stock of the Issuer meets or exceeds $14.00 for at least 20 trading days in a 30 consecutive trading day period, provided that such date occurs on or before October 20, 2026. The Reporting Person is not entitled to distributions in respect of Sponsor Units until all applicable vesting conditions are satisfied.

SEC source: 0001628280-24-045842 · wk-form4_1730932978.xml · nonDerivative · entry 1

Kingsley Lawrence D · CIK 0001301427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,203,310

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 · price: Sponsor Units represent membership interests in GS Sponsor II, LLC, a Delaware limited liability company ("Sponsor"). The Sponsor Units held by the Reporting Person are subject to both service- and performance-vesting conditions. 3,150,000 Sponsor Units satisfied the performance vesting conditions on November 4, 2024 when the volume weighted average price per share of Class A Common Stock of the Issuer met or exceeded $12.00 for at least 20 trading days in a 30 consecutive trading day period; the service vesting condition was previously satisfied. The Sponsor, of which the Reporting Person is a non-managing member, completed a pro rata distribution of Class A Common Stock to holders of Sponsor Units, including the Reporting Person, on November 5, 2024.

SEC source: 0001628280-24-045042 · wk-form4_1730757256.xml · nonDerivative · entry 3

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 0

F3 · shares: The sales reported on this Form 4 were effectuated pursuant to a Rule 10b5-1 trading plan adopted by the Lee Trust on March 7, 2024. The Reporting Person and the Reporting Person's spouse are both trustees and beneficiaries of the Lee Trust. The Reporting Person disclaims ownership of these shares of Class A Common Stock except to the extent of her pecuniary interest therein.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $12.90 to $14.89, inclusive.

SEC source: 0001628280-24-045042 · wk-form4_1730757256.xml · nonDerivative · entry 2

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 3,405

F1 · price: The Issuer issued 3,405 shares of Class A Common Stock of the Issuer to the Lee Revocable Living Trust (the "Lee Trust") pursuant to a redemption on a one-for-one basis of 3,405 shares of Class B Common Stock of Mirion IntermediateCo, Inc. held by the Lee Trust, effectuated pursuant to a 10b5-1 plan adopted by the Lee Trust on March 7, 2024. In connection with such redemption the Issuer canceled 3,405 shares of Class B Common Stock of the Issuer held by the Lee Trust.

SEC source: 0001628280-24-045042 · wk-form4_1730757256.xml · nonDerivative · entry 1

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 32,748

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 · price: The Issuer issued 3,405 shares of Class A Common Stock of the Issuer to the Lee Revocable Living Trust (the "Lee Trust") pursuant to a redemption on a one-for-one basis of 3,405 shares of Class B Common Stock of Mirion IntermediateCo, Inc. held by the Lee Trust, effectuated pursuant to a 10b5-1 plan adopted by the Lee Trust on March 7, 2024. In connection with such redemption the Issuer canceled 3,405 shares of Class B Common Stock of the Issuer held by the Lee Trust.

F2 · ownership.nature: Reflects shares of Class B Common Stock of the Issuer ("Class B Common Stock") held of record by the Lee Revocable Living Trust (the "Lee Trust") for the benefit of the Reporting Person, the Reporting Person's spouse, and beneficiaries. The Reporting Person and the Reporting Person's spouse are both trustees and beneficiary of the Lee Trust. The Reporting Person disclaims ownership of these shares of Class B Common Stock except to the extent of her pecuniary interest therein.

SEC source: 0001628280-24-043968 · wk-form4_1730150845.xml · nonDerivative · entry 3

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Aere Perennius, LLC

Disclosed balance after: 0

F3 · shares: The sales reported on this Form 4 were effectuated pursuant to a Rule 10b5-1 trading plan adopted by Aere Perennius, LLC, a limited liability company which holds interests in trusts established for the benefit of the reporting person's adult children on February 27, 2024. Mary Logan Martineau as Investment Trustee has sole voting and dispositive power of the shares of Class B common stock held by Aere Perennius, LLC, and any Class A common stock that may be received in exchange for Class B common stock following a request for redemption. The Reporting Person disclaims ownership of all such shares except to the extent of his pecuniary interest therein.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.87 to $14.22, inclusive.

SEC source: 0001628280-24-043968 · wk-form4_1730150845.xml · nonDerivative · entry 2

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Aere Perennius, LLC

Disclosed balance after: 7,500

F1 · price: The Issuer issued 7,500 shares of Class A common stock of the Issuer to Aere Perennius, LLC, pursuant to a redemption on a one-for-one basis of 7,500 shares of Class B common stock of Mirion IntermediateCo, Inc. held by Aere Perennius, LLC, effectuated pursuant to a 10b5-1 plan adopted by Aere Perennius, LLC on February 27, 2024. In connection with such redemption the Issuer canceled 7,500 shares of Class B common stock of the Issuer held by Aere Perennius, LLC.

SEC source: 0001628280-24-043968 · wk-form4_1730150845.xml · nonDerivative · entry 1

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Aere Perennius, LLC

Disclosed balance after: 2,551,371

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 · price: The Issuer issued 7,500 shares of Class A common stock of the Issuer to Aere Perennius, LLC, pursuant to a redemption on a one-for-one basis of 7,500 shares of Class B common stock of Mirion IntermediateCo, Inc. held by Aere Perennius, LLC, effectuated pursuant to a 10b5-1 plan adopted by Aere Perennius, LLC on February 27, 2024. In connection with such redemption the Issuer canceled 7,500 shares of Class B common stock of the Issuer held by Aere Perennius, LLC.

F2 · ownership.nature: Reflects shares of Class B common stock of the Issuer which are held of record by Aere Perennius, LLC., a limited liability company which is held by trusts established for the benefit of Mr. Logan's adult children. Mary Logan Martineau, formerly known as Mary Hancock Logan, as Manager has sole voting and dispositive power of the shares of Class B common stock held by Aere Perennius, LLC. Shares of Class B common stock may be exchanged for shares of Class A common stock of the Issuer on a one-for-one basis following a request for redemption by the holder. The Reporting Person disclaims ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001628280-25-000093 · wk-form4_1735855426.xml · nonDerivative · entry 1

KUO JOHN W · CIK 0001330270 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,801

F1 · shares: These shares were issued in connection with the Reporting Person's election to receive his or her quarterly retainer for director services in the form of vested shares rather than cash.

SEC source: 0001628280-25-000088 · wk-form4_1735855368.xml · nonDerivative · entry 1

Markopoulos Jody · CIK 0001854410 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,867

F1 · shares: These shares were issued in connection with the Reporting Person's election to receive his or her quarterly retainer for director services in the form of vested shares rather than cash.

SEC source: 0001628280-24-041380 · wk-form4_1727384684.xml · nonDerivative · entry 3

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 0

F3 · shares: The sales reported on this Form 4 were effectuated pursuant to a Rule 10b5-1 trading plan adopted by the Lee Trust on March 7, 2024. The Reporting Person and the Reporting Person's spouse are both trustees and beneficiaries of the Lee Trust. The Reporting Person disclaims ownership of these shares of Class A Common Stock except to the extent of her pecuniary interest therein.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.36 to $10.75, inclusive.

SEC source: 0001628280-24-041380 · wk-form4_1727384684.xml · nonDerivative · entry 2

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 5,000

F1 · price: The Issuer issued 5,000 shares of Class A Common Stock of the Issuer to the Lee Revocable Living Trust (the "Lee Trust") pursuant to a redemption on a one-for-one basis of 5,000 shares of Class B Common Stock of Mirion IntermediateCo, Inc. held by the Lee Trust, effectuated pursuant to a 10b5-1 plan adopted by the Lee Trust on March 7, 2024. In connection with such redemption the Issuer canceled 5,000 shares of Class B Common Stock of the Issuer held by the Lee Trust.

SEC source: 0001628280-24-041380 · wk-form4_1727384684.xml · nonDerivative · entry 1

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 36,153

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 · price: The Issuer issued 5,000 shares of Class A Common Stock of the Issuer to the Lee Revocable Living Trust (the "Lee Trust") pursuant to a redemption on a one-for-one basis of 5,000 shares of Class B Common Stock of Mirion IntermediateCo, Inc. held by the Lee Trust, effectuated pursuant to a 10b5-1 plan adopted by the Lee Trust on March 7, 2024. In connection with such redemption the Issuer canceled 5,000 shares of Class B Common Stock of the Issuer held by the Lee Trust.

F2 · ownership.nature: Reflects shares of Class B Common Stock of the Issuer ("Class B Common Stock") held of record by the Lee Revocable Living Trust (the "Lee Trust") for the benefit of the Reporting Person, the Reporting Person's spouse, and beneficiaries. The Reporting Person and the Reporting Person's spouse are both trustees and beneficiary of the Lee Trust. The Reporting Person disclaims ownership of these shares of Class B Common Stock except to the extent of her pecuniary interest therein.

SEC source: 0001628280-24-041379 · wk-form4_1727384660.xml · nonDerivative · entry 3

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Aere Perennius, LLC

Disclosed balance after: 0

F3 · shares: The sales reported on this Form 4 were effectuated pursuant to a Rule 10b5-1 trading plan adopted by Aere Perennius, LLC, a limited liability company which holds interests in trusts established for the benefit of the reporting person's adult children on February 27, 2024. Mary Logan Martineau as Investment Trustee has sole voting and dispositive power of the shares of Class B common stock held by Aere Perennius, LLC, and any Class A common stock that may be received in exchange for Class B common stock following a request for redemption. The Reporting Person disclaims ownership of all such shares except to the extent of his pecuniary interest therein.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.32 to $10.75, inclusive.

SEC source: 0001628280-24-041379 · wk-form4_1727384660.xml · nonDerivative · entry 2

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Aere Perennius, LLC

Disclosed balance after: 7,500

F1 · price: The Issuer issued 7,500 shares of Class A common stock of the Issuer to Aere Perennius, LLC, pursuant to a redemption on a one-for-one basis of 7,500 shares of Class B common stock of Mirion IntermediateCo, Inc. held by Aere Perennius, LLC, effectuated pursuant to a 10b5-1 plan adopted by Aere Perennius, LLC on February 27, 2024. In connection with such redemption the Issuer canceled 7,500 shares of Class B common stock of the Issuer held by Aere Perennius, LLC.

SEC source: 0001628280-24-041379 · wk-form4_1727384660.xml · nonDerivative · entry 1

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Aere Perennius, LLC

Disclosed balance after: 2,558,871

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 · price: The Issuer issued 7,500 shares of Class A common stock of the Issuer to Aere Perennius, LLC, pursuant to a redemption on a one-for-one basis of 7,500 shares of Class B common stock of Mirion IntermediateCo, Inc. held by Aere Perennius, LLC, effectuated pursuant to a 10b5-1 plan adopted by Aere Perennius, LLC on February 27, 2024. In connection with such redemption the Issuer canceled 7,500 shares of Class B common stock of the Issuer held by Aere Perennius, LLC.

F2 · ownership.nature: Reflects shares of Class B common stock of the Issuer which are held of record by Aere Perennius, LLC., a limited liability company which holds interests in trusts established for the benefit of Mr. Logan's adult children. Mary Logan Martineau, formerly known as Mary Hancock Logan, as Investment Trustee has sole voting and dispositive power of the shares of Class B common stock held by Aere Perennius, LLC. Shares of Class B common stock may be exchanged for shares of Class A common stock of the Issuer on a one-for-one basis following a request for redemption by the holder. The Reporting Person disclaims ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001628280-24-038955 · wk-form4_1725048479.xml · nonDerivative · entry 3

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 0

F3 · shares: The sales reported on this Form 4 were effectuated pursuant to a Rule 10b5-1 trading plan adopted by the Lee Trust on March 7, 2024. The Reporting Person and the Reporting Person's spouse are both trustees and beneficiaries of the Lee Trust. The Reporting Person disclaims ownership of these shares of Class A Common Stock except to the extent of her pecuniary interest therein.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.98 to $11.05, inclusive.

SEC source: 0001628280-24-038955 · wk-form4_1725048479.xml · nonDerivative · entry 2

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 5,000

F1 · price: The Issuer issued 5,000 shares of Class A Common Stock of the Issuer to the Lee Revocable Living Trust (the "Lee Trust") pursuant to a redemption on a one-for-one basis of 5,000 shares of Class B Common Stock of Mirion IntermediateCo, Inc. held by the Lee Trust, effectuated pursuant to a 10b5-1 plan adopted by the Lee Trust on March 7, 2024. In connection with such redemption the Issuer canceled 5,000 shares of Class B Common Stock of the Issuer held by the Lee Trust.

SEC source: 0001628280-24-038955 · wk-form4_1725048479.xml · nonDerivative · entry 1

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 41,153

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 · price: The Issuer issued 5,000 shares of Class A Common Stock of the Issuer to the Lee Revocable Living Trust (the "Lee Trust") pursuant to a redemption on a one-for-one basis of 5,000 shares of Class B Common Stock of Mirion IntermediateCo, Inc. held by the Lee Trust, effectuated pursuant to a 10b5-1 plan adopted by the Lee Trust on March 7, 2024. In connection with such redemption the Issuer canceled 5,000 shares of Class B Common Stock of the Issuer held by the Lee Trust.

F2 · ownership.nature: Reflects shares of Class B Common Stock of the Issuer ("Class B Common Stock") held of record by the Lee Revocable Living Trust (the "Lee Trust") for the benefit of the Reporting Person, the Reporting Person's spouse, and beneficiaries. The Reporting Person and the Reporting Person's spouse are both trustees and beneficiary of the Lee Trust. The Reporting Person disclaims ownership of these shares of Class B Common Stock except to the extent of her pecuniary interest therein.

SEC source: 0001628280-24-038546 · wk-form4_1724791202.xml · nonDerivative · entry 3

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Aere Perennius, LLC

Disclosed balance after: 0

F3 · shares: The sales reported on this Form 4 were effectuated pursuant to a Rule 10b5-1 trading plan adopted by Aere Perennius, LLC, a limited liability company which holds interests in trusts established for the benefit of the reporting person's adult children on February 27, 2024. Mary Logan Martineau as Investment Trustee has sole voting and dispositive power of the shares of Class B common stock held by Aere Perennius, LLC, and any Class A common stock that may be received in exchange for Class B common stock following a request for redemption. The Reporting Person disclaims ownership of all such shares except to the extent of his pecuniary interest therein.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.84 to $11.10, inclusive.

SEC source: 0001628280-24-038546 · wk-form4_1724791202.xml · nonDerivative · entry 2

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Aere Perennius, LLC

Disclosed balance after: 7,500

F1 · price: The Issuer issued 7,500 shares of Class A common stock of the Issuer to Aere Perennius, LLC, pursuant to a redemption on a one-for-one basis of 7,500 shares of Class B common stock of Mirion IntermediateCo, Inc. held by Aere Perennius, LLC, effectuated pursuant to a 10b5-1 plan adopted by Aere Perennius, LLC on February 27, 2024. In connection with such redemption the Issuer canceled 7,500 shares of Class B common stock of the Issuer held by Aere Perennius, LLC.

SEC source: 0001628280-24-038546 · wk-form4_1724791202.xml · nonDerivative · entry 1

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Aere Perennius, LLC

Disclosed balance after: 2,566,371

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 · price: The Issuer issued 7,500 shares of Class A common stock of the Issuer to Aere Perennius, LLC, pursuant to a redemption on a one-for-one basis of 7,500 shares of Class B common stock of Mirion IntermediateCo, Inc. held by Aere Perennius, LLC, effectuated pursuant to a 10b5-1 plan adopted by Aere Perennius, LLC on February 27, 2024. In connection with such redemption the Issuer canceled 7,500 shares of Class B common stock of the Issuer held by Aere Perennius, LLC.

F2 · ownership.nature: Reflects shares of Class B common stock of the Issuer which are held of record by Aere Perennius, LLC., a limited liability company which holds interests in trusts established for the benefit of Mr. Logan's adult children. Mary Logan Martineau, formerly known as Mary Hancock Logan, as Investment Trustee has sole voting and dispositive power of the shares of Class B common stock held by Aere Perennius, LLC. Shares of Class B common stock may be exchanged for shares of Class A common stock of the Issuer on a one-for-one basis following a request for redemption by the holder. The Reporting Person disclaims ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001628280-24-035794 · wk-form4_1723073879.xml · nonDerivative · entry 1

Eloy Loic · CIK 0001912434 · Technologies Group President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 177,663

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $9.80 to $10.02, inclusive.

SEC source: 0001628280-24-033073 · wk-form4_1721997356.xml · nonDerivative · entry 3

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 0

F3 · shares: The sales reported on this Form 4 were effectuated pursuant to a Rule 10b5-1 trading plan adopted by the Lee Trust on March 7, 2024. The Reporting Person and the Reporting Person's spouse are both trustees and beneficiaries of the Lee Trust. The Reporting Person disclaims ownership of these shares of Class A Common Stock except to the extent of her pecuniary interest therein.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.60 to $11.04, inclusive.

SEC source: 0001628280-24-033073 · wk-form4_1721997356.xml · nonDerivative · entry 2

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 5,000

F1 · price: The Issuer issued 5,000 shares of Class A Common Stock of the Issuer to the Lee Revocable Living Trust (the "Lee Trust") pursuant to a redemption on a one-for-one basis of 5,000 shares of Class B Common Stock of Mirion IntermediateCo, Inc. held by the Lee Trust, effectuated pursuant to a 10b5-1 plan adopted by the Lee Trust on March 7, 2024. In connection with such redemption the Issuer canceled 5,000 shares of Class B Common Stock of the Issuer held by the Lee Trust.

SEC source: 0001628280-24-033073 · wk-form4_1721997356.xml · nonDerivative · entry 1

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Trust

Disclosed balance after: 46,153

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 · price: The Issuer issued 5,000 shares of Class A Common Stock of the Issuer to the Lee Revocable Living Trust (the "Lee Trust") pursuant to a redemption on a one-for-one basis of 5,000 shares of Class B Common Stock of Mirion IntermediateCo, Inc. held by the Lee Trust, effectuated pursuant to a 10b5-1 plan adopted by the Lee Trust on March 7, 2024. In connection with such redemption the Issuer canceled 5,000 shares of Class B Common Stock of the Issuer held by the Lee Trust.

F2 · ownership.nature: Reflects shares of Class B Common Stock of the Issuer ("Class B Common Stock") held of record by the Lee Trust for the benefit of the Reporting Person, the Reporting Person's spouse, and beneficiaries. The Reporting Person and the Reporting Person's spouse are both trustees and beneficiary of the Lee Trust. The Reporting Person disclaims ownership of these shares of Class B Common Stock except to the extent of her pecuniary interest therein.

SEC source: 0001628280-24-033070 · wk-form4_1721997264.xml · nonDerivative · entry 3

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Aere Perennius, LLC

Disclosed balance after: 0

F3 · shares: The sales reported on this Form 4 were effectuated pursuant to a Rule 10b5-1 trading plan adopted by Aere Perennius, LLC, a limited liability company which holds interests in trusts established for the benefit of the reporting person's adult children on February 27, 2024. Mary Logan Martineau as Investment Trustee has sole voting and dispositive power of the shares of Class B common stock held by Aere Perennius, LLC, and any Class A common stock that may be received in exchange for Class B common stock following a request for redemption. The Reporting Person disclaims ownership of all such shares except to the extent of his pecuniary interest therein.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.69 to $11.03, inclusive.

SEC source: 0001628280-24-033070 · wk-form4_1721997264.xml · nonDerivative · entry 2

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Aere Perennius, LLC

Disclosed balance after: 7,500

F1 · price: The Issuer issued 7,500 shares of Class A common stock of the Issuer to Aere Perennius, LLC, pursuant to a redemption on a one-for-one basis of 7,500 shares of Class B common stock of Mirion IntermediateCo, Inc. held by Aere Perennius, LLC, effectuated pursuant to a 10b5-1 plan adopted by Aere Perennius, LLC on February 27, 2024. In connection with such redemption the Issuer canceled 7,500 shares of Class B common stock of the Issuer held by Aere Perennius, LLC.

SEC source: 0001628280-24-033070 · wk-form4_1721997264.xml · nonDerivative · entry 1

Logan Thomas D · CIK 0001486259 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Aere Perennius, LLC

Disclosed balance after: 2,573,871

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 · price: The Issuer issued 7,500 shares of Class A common stock of the Issuer to Aere Perennius, LLC, pursuant to a redemption on a one-for-one basis of 7,500 shares of Class B common stock of Mirion IntermediateCo, Inc. held by Aere Perennius, LLC, effectuated pursuant to a 10b5-1 plan adopted by Aere Perennius, LLC on February 27, 2024. In connection with such redemption the Issuer canceled 7,500 shares of Class B common stock of the Issuer held by Aere Perennius, LLC.

F2 · ownership.nature: Reflects shares of Class B common stock of the Issuer which are held of record by Aere Perennius, LLC., a limited liability company which holds interests in trusts established for the benefit of Mr. Logan's adult children. Mary Logan Martineau, formerly known as Mary Hancock Logan, as Investment Trustee has sole voting and dispositive power of the shares of Class B common stock held by Aere Perennius, LLC. Shares of Class B common stock may be exchanged for shares of Class A common stock of the Issuer on a one-for-one basis following a request for redemption by the holder. The Reporting Person disclaims ownership of these shares except to the extent of his pecuniary interest therein.

SEC source: 0001628280-24-030789 · wk-form4_1719950576.xml · nonDerivative · entry 1

Kingsley Lawrence D · CIK 0001301427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,310

F1 · shares: These shares were issued in connection with the Reporting Person's election to receive his or her quarterly retainer for director services in the form of vested shares rather than cash.