Sec Form 3 Filing - Lee Emmanuelle @ Mirion Technologies, Inc. - 2024-02-28

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Lee Emmanuelle 2. Issuer Name and Ticker or Trading Symbol Mirion Technologies, Inc. [ MIR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Legal Officer (Last) (First) (Middle) 1218 MENLO DR. NW 3. Date of Earliest Transaction (MM/DD/YY) 02/28/2024 (Street) ATLANTA, GA30318 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 92,732 ( 1 ) D Class B Common Stock 138,193 ( 2 ) ( 3 ) ( 4 ) D Class B Common Stock 61,153 ( 2 ) ( 3 ) I By Trust ( 5 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Lee Emmanuelle 1218 MENLO DR. NW ATLANTA, GA30318 Chief Legal Officer Signatures /s/ Emmanuelle Lee 03/05/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents restricted stock units that vest in three or four equal annual installments granted on 12/27/2021, 4/1/2022, and 3/29/2023, respectively, subject to the Reporting Person's continued employment through each vesting date. ( 2 )Pursuant to the Business Combination Agreement, dated June 17, 2021 (as amended on September 3, 2021), by and among GS Acquisition Holdings Corp II ("GSAH"), Mirion Technologies (TopCo), Ltd ("Legacy Mirion") and the other parties thereto (the "Business Combination Agreement"), GSAH established a Delaware corporation, Mirion IntermediateCo, Inc. ("IntermediateCo") as a subsidiary thereof. A newly-formed subsidiary of IntermediateCo merged with and into Legacy Mirion with Legacy Mirion surviving as a wholly-owned subsidiary of IntermediateCo, with GSAH (which changed its name to Mirion Technologies, Inc. (the "Issuer")) thereby becoming the corporate parent of Legacy Mirion. The transactions contemplated by the Business Combination Agreement are referred to herein as the "Business Combination". ( 3 )Pursuant to the terms of the Business Combination Agreement, the shareholders of Legacy Mirion at the effective time of the Business Combination (the "Effective Time") were entitled to elect to receive, for each Class A ordinary share of Legacy Mirion held by them immediately prior to the Effective Time, a combination of cash and shares of Class B common stock of the Issuer ("Class B Common Stock"), in each case, as specified by the applicable Legacy Mirion shareholder. ( 4 )Reflects shares of Class B Common Stock acquired by the Reporting Person pursuant to the Business Combination Agreement. ( 5 )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.

Remarks: Exhibit 24 POA

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