MIR

SEC source: 0001628280-24-030788 · wk-form4_1719950569.xml · nonDerivative · entry 1

KUO JOHN W · CIK 0001330270 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,088

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: 0001628280-24-030787 · wk-form4_1719950561.xml · nonDerivative · entry 1

Etzel Steven W. · CIK 0001417866 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,088

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: 0001628280-24-030786 · wk-form4_1719950548.xml · nonDerivative · entry 1

Bockhorst Kenneth · CIK 0001672279 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,578

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: 0001628280-24-030382 · wk-form4_1719527890.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.

SEC source: 0001628280-24-030382 · wk-form4_1719527890.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: 0001628280-24-030382 · wk-form4_1719527890.xml · nonDerivative · entry 1

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 51,153

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: 0001628280-24-029901 · wk-form4_1719346728.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

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 $10.80 to $10.93, inclusive.

SEC source: 0001628280-24-029901 · wk-form4_1719346728.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

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: 0001628280-24-029901 · wk-form4_1719346728.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Aere Perennius, LLC

Disclosed balance after: 2,581,371

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: 0001628280-24-028066 · wk-form4_1718310202.xml · nonDerivative · entry 1

Moore Christopher A. · CIK 0001928030 · Chief Accounting Officer (PAO)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,128

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.28 to $10.29, inclusive.

SEC source: 0001628280-24-027543 · wk-form4_1718052000.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.

SEC source: 0001628280-24-027543 · wk-form4_1718052000.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: 0001628280-24-027543 · wk-form4_1718052000.xml · nonDerivative · entry 1

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Trust

Disclosed balance after: 56,153

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") which are 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 beneficiaries of the Lee Trust. 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 of Class B Common Stock except to the extent of her pecuniary interest therein.

SEC source: 0001628280-24-026617 · wk-form4_1717534063.xml · nonDerivative · entry 1

CASCELLA ROBERT · CIK 0001218713 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,441

F1 · shares: Represents restricted stock units that will vest in four equal quarterly installments on September 15, 2024, December 15, 2024, March 15, 2025, and the earlier to occur of (i) first anniversary of the grant date or (ii) date of the annual stockholder meeting following the grant date, subject to the non-employee director's continued service on the Board through each such vesting date.

SEC source: 0001628280-24-026616 · wk-form4_1717534047.xml · nonDerivative · entry 1

Bockhorst Kenneth · CIK 0001672279 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,209

F1 · shares: Represents restricted stock units that will vest in four equal quarterly installments on September 15, 2024, December 15, 2024, March 15, 2025, and the earlier to occur of (i) first anniversary of the grant date or (ii) date of the annual stockholder meeting following the grant date, subject to the non-employee director's continued service on the Board through each such vesting date.

SEC source: 0001628280-24-026615 · wk-form4_1717534035.xml · nonDerivative · entry 1

Kingsley Lawrence D · CIK 0001301427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,525

F1 · shares: Represents restricted stock units that will vest in four equal quarterly installments on September 15, 2024, December 15, 2024, March 15, 2025, and the earlier to occur of (i) first anniversary of the grant date or (ii) date of the annual stockholder meeting following the grant date, subject to the non-employee director's continued service on the Board through each such vesting date.

SEC source: 0001628280-24-026614 · wk-form4_1717534022.xml · nonDerivative · entry 1

KUO JOHN W · CIK 0001330270 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,069

F1 · shares: Represents restricted stock units that will vest in four equal quarterly installments on September 15, 2024, December 15, 2024, March 15, 2025, and the earlier to occur of (i) first anniversary of the grant date or (ii) date of the annual stockholder meeting following the grant date, subject to the non-employee director's continued service on the Board through each such vesting date.

SEC source: 0001628280-24-026613 · wk-form4_1717534008.xml · nonDerivative · entry 1

Rege Sheila · CIK 0001947177 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,517

F1 · shares: Represents restricted stock units that will vest in four equal quarterly installments on September 15, 2024, December 15, 2024, March 15, 2025, and the earlier to occur of (i) first anniversary of the grant date or (ii) date of the annual stockholder meeting following the grant date, subject to the non-employee director's continued service on the Board through each such vesting date.

SEC source: 0001628280-24-026612 · wk-form4_1717533995.xml · nonDerivative · entry 1

Etzel Steven W. · CIK 0001417866 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,069

F1 · shares: Represents restricted stock units that will vest in four equal quarterly installments on September 15, 2024, December 15, 2024, March 15, 2025, and the earlier to occur of (i) first anniversary of the grant date or (ii) date of the annual stockholder meeting following the grant date, subject to the non-employee director's continued service on the Board through each such vesting date.

SEC source: 0001628280-24-026611 · wk-form4_1717533982.xml · nonDerivative · entry 1

Markopoulos Jody · CIK 0001854410 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,137

F1 · shares: Represents restricted stock units that will vest in four equal quarterly installments on September 15, 2024, December 15, 2024, March 15, 2025, and the earlier to occur of (i) first anniversary of the grant date or (ii) date of the annual stockholder meeting following the grant date, subject to the non-employee director's continued service on the Board through each such vesting date.

SEC source: 0000895345-24-000222 · form4.xml · derivative · entry 3

GS Sponsor II LLC · CIK 0001816291 · 10% owner

GOLDMAN SACHS & CO. LLC · CIK 0000769993 · 10% owner

GOLDMAN SACHS GROUP INC · CIK 0000886982 · 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

Underlying: Class A Common Stock · 8,500,000 shares

Expires not disclosed

F1 · kind: On June 5, 2024, GS Sponsor II LLC (the "Sponsor") surrendered to Mirion Technologies, Inc. (the "Issuer") warrants to purchase 8,500,000 shares of the Issuer's Class A Common Stock ("Class A Common Stock") in exchange for 1,768,000 shares of Class A Common Stock. As a result of this exchange, the Reporting Persons ceased to be subject to Section 16 of the Securities Exchange Act of 1934.

F1 · price: On June 5, 2024, GS Sponsor II LLC (the "Sponsor") surrendered to Mirion Technologies, Inc. (the "Issuer") warrants to purchase 8,500,000 shares of the Issuer's Class A Common Stock ("Class A Common Stock") in exchange for 1,768,000 shares of Class A Common Stock. As a result of this exchange, the Reporting Persons ceased to be subject to Section 16 of the Securities Exchange Act of 1934.

F4 · derivative.exercise_date: In connection with the completion of the Issuer's initial public offering, Sponsor purchased an aggregate of 8,500,000 private placement warrants, each exercisable to purchase (subject, initially, to the satisfaction of certain material conditions) one share of the Issuer's Class A Common Stock for $11.50 per share. Certain material conditions to the exercisability of these warrants were satisfied upon the occurrence of the Issuer's initial business combination and these warrants were exercisable (including by cash settlement) 30 days following such date.

F4 · derivative.expiration_date: In connection with the completion of the Issuer's initial public offering, Sponsor purchased an aggregate of 8,500,000 private placement warrants, each exercisable to purchase (subject, initially, to the satisfaction of certain material conditions) one share of the Issuer's Class A Common Stock for $11.50 per share. Certain material conditions to the exercisability of these warrants were satisfied upon the occurrence of the Issuer's initial business combination and these warrants were exercisable (including by cash settlement) 30 days following such date.

F2 · ownership.direct: These securities are or were held by Sponsor. Each of The Goldman Sachs Group, Inc. ("GS Group") and its subsidiary, Goldman, Sachs & Co. LLC ("Goldman Sachs"), may be deemed a beneficial owner of Issuer securities held by Sponsor, but each disclaims beneficial ownership thereof except to the extent of its pecuniary interest, if any.

SEC source: 0000895345-24-000222 · form4.xml · nonDerivative · entry 1

GS Sponsor II LLC · CIK 0001816291 · 10% owner

GOLDMAN SACHS & CO. LLC · CIK 0000769993 · 10% owner

GOLDMAN SACHS GROUP INC · CIK 0000886982 · 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: 17,793,000

F1 · kind: On June 5, 2024, GS Sponsor II LLC (the "Sponsor") surrendered to Mirion Technologies, Inc. (the "Issuer") warrants to purchase 8,500,000 shares of the Issuer's Class A Common Stock ("Class A Common Stock") in exchange for 1,768,000 shares of Class A Common Stock. As a result of this exchange, the Reporting Persons ceased to be subject to Section 16 of the Securities Exchange Act of 1934.

F1 · price: On June 5, 2024, GS Sponsor II LLC (the "Sponsor") surrendered to Mirion Technologies, Inc. (the "Issuer") warrants to purchase 8,500,000 shares of the Issuer's Class A Common Stock ("Class A Common Stock") in exchange for 1,768,000 shares of Class A Common Stock. As a result of this exchange, the Reporting Persons ceased to be subject to Section 16 of the Securities Exchange Act of 1934.

F2 · ownership.direct: These securities are or were held by Sponsor. Each of The Goldman Sachs Group, Inc. ("GS Group") and its subsidiary, Goldman, Sachs & Co. LLC ("Goldman Sachs"), may be deemed a beneficial owner of Issuer securities held by Sponsor, but each disclaims beneficial ownership thereof except to the extent of its pecuniary interest, if any.

SEC source: 0001628280-24-025809 · wk-form4_1717100438.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

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.

SEC source: 0001628280-24-025809 · wk-form4_1717100438.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

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: 0001628280-24-025809 · wk-form4_1717100438.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Indirect · By Aere Perennius, LLC

Disclosed balance after: 2,588,871

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: 0001628280-24-014623 · wk-form4_1712177044.xml · nonDerivative · entry 1

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 101,272

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: 0001628280-24-014621 · wk-form4_1712176999.xml · nonDerivative · entry 1

Ulrich Alison · CIK 0002013994 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,830

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: 0001628280-24-014619 · wk-form4_1712176919.xml · nonDerivative · entry 1

Moore Christopher A. · CIK 0001928030 · Chief Accounting Officer (PAO)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,281

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: 0001628280-24-014616 · wk-form4_1712176803.xml · nonDerivative · entry 1

Schopfer Brian · CIK 0001885701 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 196,333

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: 0001628280-24-014603 · wk-form4_1712176393.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 755,790

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: 0001628280-24-014180 · wk-form4_1712007844.xml · nonDerivative · entry 1

Kingsley Lawrence D · CIK 0001301427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,025

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: 0001628280-24-014159 · wk-form4_1712007074.xml · nonDerivative · entry 1

Bockhorst Kenneth · CIK 0001672279 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,709

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: 0001628280-24-014157 · wk-form4_1712007029.xml · nonDerivative · entry 1

KUO JOHN W · CIK 0001330270 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,569

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: 0001628280-24-014154 · wk-form4_1712006966.xml · nonDerivative · entry 1

Etzel Steven W. · CIK 0001417866 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,569

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: 0001628280-24-012529 · wk-form4_1711052147.xml · nonDerivative · entry 3

Schopfer Brian · CIK 0001885701 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 211,167

F2 · shares: The sales reported on this Form 4 were effectuated pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 13, 2023.

SEC source: 0001628280-24-012529 · wk-form4_1711052147.xml · nonDerivative · entry 2

Schopfer Brian · CIK 0001885701 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 649,935

F1 · price: The Issuer issued 90,910 shares of Class A common stock of the Issuer to the reporting person pursuant to a redemption of 90,910 shares of Class B common stock of Mirion IntermediateCo, Inc. held by the reporting person effectuated pursuant to a 10b5-1 plan adopted by the reporting person on March 13, 2023. In connection with such redemption the Issuer canceled 90,910 shares of Class B common stock of the Issuer held by the reporting person.

SEC source: 0001628280-24-012529 · wk-form4_1711052147.xml · nonDerivative · entry 1

Schopfer Brian · CIK 0001885701 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 302,077

F1 · price: The Issuer issued 90,910 shares of Class A common stock of the Issuer to the reporting person pursuant to a redemption of 90,910 shares of Class B common stock of Mirion IntermediateCo, Inc. held by the reporting person effectuated pursuant to a 10b5-1 plan adopted by the reporting person on March 13, 2023. In connection with such redemption the Issuer canceled 90,910 shares of Class B common stock of the Issuer held by the reporting person.

SEC source: 0001628280-24-009207 · wk-form4_1709686268.xml · nonDerivative · entry 1

Lee Emmanuelle · CIK 0002014061 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 107,792

F1 · shares: Represents restricted stock units that will vest in three equal annual installments starting on March 1, 2025, subject to the Reporting Person's continued employment through each vesting date.

SEC source: 0001628280-24-009203 · wk-form4_1709686137.xml · nonDerivative · entry 1

Ulrich Alison · CIK 0002013994 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,689

F1 · shares: Represents restricted stock units that will vest in three equal annual installments starting on March 1, 2025, subject to the Reporting Person's continued employment through each vesting date.

SEC source: 0001628280-24-009041 · wk-form4_1709677462.xml · nonDerivative · entry 1

Schopfer Brian · CIK 0001885701 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 211,167

F1 · shares: Represents restricted stock units that will vest in three equal annual installments starting on March 1, 2025, subject to the Reporting Person's continued employment through each vesting date.

SEC source: 0001628280-24-009042 · wk-form4_1709677472.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 811,888

F1 · shares: Represents restricted stock units that will vest in three equal annual installments starting on March 1, 2025, subject to the Reporting Person's continued employment through each vesting date.

SEC source: 0001628280-24-009039 · wk-form4_1709677452.xml · nonDerivative · entry 1

Eloy Loic · CIK 0001912434 · Industrial Group President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 199,802

F1 · shares: Represents restricted stock units that will vest in three equal annual installments starting on March 1, 2025, subject to the Reporting Person's continued employment through each vesting date.

SEC source: 0001628280-24-009038 · wk-form4_1709677441.xml · nonDerivative · entry 1

Moore Christopher A. · CIK 0001928030 · Chief Accounting Officer (PAO)

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,736

F1 · shares: Represents restricted stock units that will vest in three equal annual installments starting on March 1, 2025, subject to the Reporting Person's continued employment through each vesting date.

SEC source: 0001628280-24-000236 · wk-form4_1704318664.xml · nonDerivative · entry 1

Bockhorst Kenneth · CIK 0001672279 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,482

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: 0001628280-24-000232 · wk-form4_1704318527.xml · nonDerivative · entry 1

Etzel Steven W. · CIK 0001417866 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,671

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: 0001628280-24-000229 · wk-form4_1704318415.xml · nonDerivative · entry 1

KUO JOHN W · CIK 0001330270 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,671

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: 0001628280-24-000224 · wk-form4_1704318312.xml · nonDerivative · entry 1

Kingsley Lawrence D · CIK 0001301427 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,346

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: 0001628280-23-042834 · wk-form4_1703804708.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 655,262

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: 0001628280-23-042832 · wk-form4_1703804661.xml · nonDerivative · entry 1

Schopfer Brian · CIK 0001885701 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,927

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: 0001628280-23-036736 · wk-form4_1699043012.xml · nonDerivative · entry 1

Rossi Michael J · CIK 0001948795 · Medical Group President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 116,173

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