MIR / Mirion Technologies, Inc. - SEC-arkivering, Årsberetning, Fuldmagtserklæring

Mirion Technologies, Inc.
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LEI 549300BNTOWVWFNVTJ65
CIK 1809987
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Mirion Technologies, Inc.
SEC Filings (Chronological Order)
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May 29, 2026 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. Employer Identification Number) 1218 Menlo Drive Atlanta, Georgia 30318 (Address of Principal Executive Offices) Emmanuel

May 29, 2026 EX-1.01

Mirion Technologies, Inc. Conflict Mineral Report For the Reporting Period January 1, 2025 to December 31, 2025

Mirion Technologies, Inc. Conflict Mineral Report For the Reporting Period January 1, 2025 to December 31, 2025 1.Company Overview. Mirion Technologies, Inc. (“Mirion” or the “Company”) is filing this Conflict Minerals Report (this “CMR”) for the reporting period January 1, 2025 to December 31, 2025 (the “Reporting Period”) as an exhibit to its Form SD pursuant to Rule 13p-1 under the Securities E

May 14, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 13, 2026 Mirion Technologies,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 13, 2026 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. E

April 29, 2026 EX-10.2

MIRION TECHNOLOGIES, INC. Third Amended and Restated Non-Employee Director Compensation Program April 22, 2026

Exhibit 10.2 MIRION TECHNOLOGIES, INC. Third Amended and Restated Non-Employee Director Compensation Program April 22, 2026 The Board of Directors (the “Board”) of Mirion Technologies, Inc. (the “Company” approved the following director compensation program (this “Program”) for Non-Employee Directors of the Company. For purposes of this Program, a “Non-Employee Director” is a director who has not

April 29, 2026 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2026 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies,

April 29, 2026 EX-10.3

MIRION TECHNOLOGIES, INC. OMNIBUS INCENTIVE PLAN RSU GRANT NOTICE

Exhibit 10.3 MIRION TECHNOLOGIES, INC. OMNIBUS INCENTIVE PLAN RSU GRANT NOTICE (Directors) Mirion Technologies, Inc., a Delaware corporation (the “Company”), pursuant to its Omnibus Incentive Plan (the “Plan”), hereby grants to the individual listed below (the “Participant”) an Award of RSUs indicated below, which RSUs shall be subject to vesting based on the Participant’s continued service with t

April 28, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): April 28, 2026 Mirion Technologie

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): April 28, 2026 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

April 28, 2026 EX-99.1

Mirion Announces First Quarter 2026 Financial Results

Exhibit 99.1 News Release Mirion Announces First Quarter 2026 Financial Results •Revenues for the first quarter increased 27.5% to $257.6 million, compared to $202.0 million in the same period in 2025. •GAAP net loss was $3.4 million in the first quarter, compared to GAAP net income of $0.4 million in the same period in 2025; Adjusted EBITDA was $54.3 million in the first quarter, a 16.3% increase

April 13, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): April 9, 2026 Mirion Technologies

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): April 9, 2026 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

April 13, 2026 EX-99.1

MIRION TECHNOLOGIES, INC. PERFORMANCE STOCK OPTION AWARD AGREEMENT

MIRION TECHNOLOGIES, INC. PERFORMANCE STOCK OPTION AWARD AGREEMENT This Performance Stock Option Award Agreement dated April 9, 2026 (together with all schedules hereto, this “Agreement”) is being entered into by and between Mirion Technologies, Inc., a Delaware corporation (including any successor thereto by merger, consolidation, acquisition of all or substantially all the assets thereof, or oth

April 1, 2026 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

April 1, 2026 ARS

ARS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies, Inc.

April 1, 2026 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy State

February 19, 2026 EX-4.2

DESCRIPTION OF SECURITIES

Exhibit 4.2 DESCRIPTION OF SECURITIES The following description sets forth certain material terms and provisions of the securities of Mirion Technologies, Inc. that are registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). The following summary of the material terms of our securities is not intended to be a complete summary of the rights and preferenc

February 19, 2026 EX-21.1

Mirion Technologies, Inc. List of Subsidiaries

Exhibit 21.1 Mirion Technologies, Inc. List of Subsidiaries Mirion IntermediateCo, Inc. Delaware, USA Mirion Technologies (US Holdings), Inc. Delaware, USA Mirion Technologies (HoldingRep), Ltd. United Kingdom Mirion Technologies (Global), Ltd. United Kingdom Mirion Technologies (US), Inc. Delaware, USA Mirion Technologies (GDS), Inc. Delaware, USA Mirion Technologies (Conax Nuclear), Inc. New Yor

February 19, 2026 EX-19.1

Insider Trading Policy

Exhibit 19.1 Insider Trading Policy 1.Purpose It is the policy of Mirion Technologies, Inc. (collectively with its subsidiaries, the “Company”) that it will, without exception, comply with all applicable laws and regulations in conducting its business. Each employee and each director of the Company, including its subsidiaries, is expected to abide by this policy. When carrying out Company business

February 19, 2026 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion

February 10, 2026 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): February 10, 2026 Mirion Technolo

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): February 10, 2026 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R

February 10, 2026 EX-99.1

Mirion Announces Fourth Quarter and Full Year 2025 Financial Results; Provides Full Year 2026 Guidance

Exhibit 99.1 News Release Mirion Announces Fourth Quarter and Full Year 2025 Financial Results; Provides Full Year 2026 Guidance •Revenues for the fourth quarter increased 9.1% to $277.4 million, compared to $254.3 million in the same period in 2024. •GAAP net income was $17.8 million in the fourth quarter, compared to a GAAP net income of $15.9 million in the same period in 2024, an 11.9% improve

December 8, 2025 EX-10.1

AMENDMENT NO. 6 TO CREDIT AGREEMENT

Exhibit 10.1 Execution Version AMENDMENT NO. 6 TO CREDIT AGREEMENT This AMENDMENT No. 6 (this “Amendment”) dated as of December 8, 2025 to the Credit Agreement dated as of October 20, 2021 (as amended or supplemented by the Agreement and Amendment No. 1 to Credit Agreement dated as of November 22, 2021, the Amendment No. 2 to Credit Agreement dated as of June 23, 2023, the Holdings Assumption Agre

December 8, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): December 8, 2025 Mirion Technolog

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): December 8, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.

December 1, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): December 1, 2025 Mirion Technolog

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): December 1, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.

November 7, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): November 6, 2025 Mirion Technolog

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): November 6, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.

October 29, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technolog

October 28, 2025 EX-99.1

Mirion Announces Third Quarter 2025 Financial Results and Updates Full Year Guidance

Exhibit 99.1 News Release Mirion Announces Third Quarter 2025 Financial Results and Updates Full Year Guidance •Revenue for the third quarter increased 7.9% to $223.1 million, compared to $206.8 million in the same period in 2024. •GAAP net income was $3.1 million in the third quarter, compared to a GAAP net loss of $14.0 million in the same period in 2024; a 122% improvement. Adjusted EBITDA was

October 28, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): October 28, 2025 Mirion Technolog

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): October 28, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.

September 30, 2025 EX-99.2

Mirion Technologies Announces Pricing of Upsized $325.0 Million Offering of 0.00% Convertible Senior Notes Due 2031

Exhibit 99.2 Mirion Technologies Announces Pricing of Upsized $325.0 Million Offering of 0.00% Convertible Senior Notes Due 2031 Atlanta, GA – September 25, 2025 (GLOBE NEWSWIRE) – Mirion Technologies, Inc. (“Mirion”) (NYSE: MIR), today announced the pricing of $325.0 million aggregate principal amount of 0.00% Convertible Senior Notes due 2031 (the “notes”) in a private placement (the “convertibl

September 30, 2025 EX-10.1

[Signature Page to Base Capped Call Confirmation]

Exhibit 10.1 [Dealer Name and Address] September 25, 2025 To: Mirion Technologies, Inc. 1218 Menlo Drive Atlanta, Georgia 30318 Attention: Brian Schopfer Email: [] Re: Base Call Option Transaction The purpose of this letter agreement (this “Confirmation”) is to confirm the terms and conditions of the call option transaction entered into between [Dealer Name] (“Dealer”) and Mirion Technologies, Inc

September 30, 2025 EX-99.1

Mirion Technologies Announces Pricing of Upsized Public Offering of Class A Common Stock

Exhibit 99.1 Mirion Technologies Announces Pricing of Upsized Public Offering of Class A Common Stock Atlanta, GA – September 25, 2025 (GLOBE NEWSWIRE) – Mirion Technologies, Inc. (“Mirion”) (NYSE: MIR), today announced the pricing of an underwritten public offering of 17,309,846 shares of Mirion’s Class A common stock at a public offering price of $21.35 per share (the “common stock offering”). T

September 30, 2025 EX-4.1

MIRION TECHNOLOGIES, INC. U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee Dated as of September 30, 2025 0.00% Convertible Senior Notes due 2031 TABLE OF CONTENTS

Exhibit 4.1 Execution Version MIRION TECHNOLOGIES, INC. AND U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee INDENTURE Dated as of September 30, 2025 0.00% Convertible Senior Notes due 2031 TABLE OF CONTENTS PAGE ARTICLE 1 DEFINITIONS 1 Section 1.01. Definitions. 1 Section 1.02. References to Interest. 15 ARTICLE 2 ISSUE, DESCRIPTION, EXECUTION, REGISTRATION AND EXCHANGE OF NOTES 15 Secti

September 30, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): September 25, 2025 Mirion Technol

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): September 25, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.

September 30, 2025 EX-10.2

[Signature Page to Additional Capped Call Confirmation]

Exhibit 10.2 [Dealer Name and Address] September 26, 2025 To: Mirion Technologies, Inc. 1218 Menlo Drive Atlanta, Georgia 30318 Attention: Brian Schopfer Email: [] Re: Additional Call Option Transaction The purpose of this letter agreement (this “Confirmation”) is to confirm the terms and conditions of the call option transaction entered into between [Dealer Name] (“Dealer”) and Mirion Technologie

September 30, 2025 EX-1.1

Mirion Technologies, Inc. Class A Common Stock Underwriting Agreement

Exhibit 1.1 Mirion Technologies, Inc. Class A Common Stock Underwriting Agreement September 25, 2025 Goldman Sachs & Co. LLC Evercore Group L.L.C. As representatives (the “Representatives”) of the several Underwriters named in Schedule I hereto, c/o Goldman Sachs & Co. LLC 200 West Street, New York, New York 10282 c/o Evercore Group L.L.C. 55 East 52nd Street New York, New York 10055 Ladies and Ge

September 29, 2025 424B5

17,309,846 Shares Class A Common Stock

Filed Pursuant to Rule 424(b)(5)  Registration No. 333-268445 PROSPECTUS SUPPLEMENT (to Prospectus dated November 28, 2022) 17,309,846 Shares Class A Common Stock We are offering 17,309,846 shares of our Class A common stock, par value $0.0001 per share. Our Class A common stock is listed on The New York Stock Exchange (the “NYSE”) under the symbol “MIR.” The last reported sale price of our Class

September 26, 2025 FWP

Mirion Technologies Announces Pricing of Upsized Public Offering of Class A Common Stock

Issuer Free Writing Prospectus dated September 25, 2025 Relating to Preliminary Prospectus Supplement dated September 24, 2025 Filed pursuant to Rule 433 Registration Statement No.

September 24, 2025 424B5

Subject to Completion, Dated September 24, 2025

Filed Pursuant to Rule 424(b)(5)  Registration No. 333-268445 Subject to Completion, Dated September 24, 2025 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement is not an offer to sell these securities and is not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

September 24, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): September 24, 2025 Mirion Technol

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): September 24, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.

September 24, 2025 FWP

Mirion Technologies Announces Proposed Public Offering of Class A Common Stock

Issuer Free Writing Prospectus dated September 24, 2025 Relating to Preliminary Prospectus Supplement dated September 24, 2025 Filed pursuant to Rule 433 Registration Statement No.

August 1, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies,

July 31, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): July 31, 2025 Mirion Technologies

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): July 31, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

July 31, 2025 EX-99.1

Mirion Announces Second Quarter 2025 Financial Results and Updates Full Year Guidance

Exhibit 99.1 News Release Mirion Announces Second Quarter 2025 Financial Results and Updates Full Year Guidance •Revenue for the second quarter increased 7.6% to $222.9 million, compared to $207.1 million in the same period in 2024. •GAAP net income was $8.5 million in the second quarter, compared to a GAAP net loss of $12.0 million in the same period in 2024; a 171% improvement. Adjusted EBITDA w

June 5, 2025 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): June 5, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. E

June 5, 2025 EX-10.1

Amendment No.5 to Credit Agreement by and among Mirion IntermediateCo, Inc., Mirion Technologies (US Holdings), Inc. and Mirion Technologies (US), Inc., the other Credit Parties party thereto, the lending institutions from time to time party thereto and Citibank, N.A., effective as of June 5, 2025

Exhibit 10.1 Execution Version AMENDMENT NO. 5 TO CREDIT AGREEMENT This AMENDMENT No. 5 (this “Amendment”) dated as of June 5, 2025 to the Credit Agreement dated as of October 20, 2021 (as amended or supplemented by the Agreement and Amendment No. 1 to Credit Agreement dated as of November 22, 2021, the Amendment No. 2 to Credit Agreement dated as of June 23, 2023, the Holdings Assumption Agreemen

May 30, 2025 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. Employer Identification Number) 1218 Menlo Drive Atlanta, Georgia 30318 (Address of Principal Executive Offices) Emmanuel

May 30, 2025 EX-1.01

Conflict Minerals Report of Mirion Technologies, Inc.

Mirion Technologies, Inc. Conflict Mineral Report For the Reporting Period January 1, 2024 to December 31, 2024 1.Company Overview. Mirion Technologies, Inc. (“Mirion” or the “Company”) is filing this Conflict Minerals Report (this “CMR”) for the reporting period January 1, 2024 to December 31, 2024 (the “Reporting Period”) as an exhibit to its Form SD pursuant to Rule 13p-1 under the Securities E

May 29, 2025 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 29, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. E

May 23, 2025 8-K

Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 20, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. E

May 23, 2025 EX-10.1

Form of Base Capped Call Transaction Confirmation.

Exhibit 10.1 [Dealer Name and Address] May 20, 2025 To: Mirion Technologies, Inc. 1218 Menlo Drive Atlanta, Georgia 30318 Attention: Brian Schopfer Email: [email protected] Re: Base Call Option Transaction The purpose of this letter agreement (this “Confirmation”) is to confirm the terms and conditions of the call option transaction entered into between [Dealer Name] (“Dealer”) and Mirion Techn

May 23, 2025 EX-10.2

Form of Additional Capped Call Transaction Confirmation.

Exhibit 10.2 [Dealer Name and Address] May 21, 2025 To: Mirion Technologies, Inc. 1218 Menlo Drive Atlanta, Georgia 30318 Attention: Brian Schopfer Email: [email protected] Re: Additional Call Option Transaction The purpose of this letter agreement (this “Confirmation”) is to confirm the terms and conditions of the call option transaction entered into between [Dealer Name] (“Dealer”) and Mirion

May 23, 2025 EX-4.1

Indenture, dated May 23, 2025, between Mirion Technologies, Inc. and U.S. Bank Trust Company, National Association.

Exhibit 4.1 Execution Version MIRION TECHNOLOGIES, INC. AND U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee INDENTURE Dated as of May 23, 2025 0.25% Convertible Senior Notes due 2030 TABLE OF CONTENTS Page Section 1.01. Definitions 1 Section 1.02. References to Interest 14 Article 2 Issue, Description, Execution, Registration and Exchange of Notes Section 2.01. Designation and Amount 15

May 23, 2025 EX-99.1

Mirion Technologies Announces Pricing of Upsized $350.0 Million Offering of 0.25% Convertible Senior Notes Due 2030

Exhibit 99.1 Mirion Technologies Announces Pricing of Upsized $350.0 Million Offering of 0.25% Convertible Senior Notes Due 2030 May 20, 2025 Atlanta, GA – May 20, 2025 (GLOBE NEWSWIRE) – Mirion Technologies, Inc. (“Mirion”) (NYSE: MIR), ), today announced the pricing of $350.0 million aggregate principal amount of 0.25% Convertible Senior Notes due 2030 (the “Notes”) in a private placement (the “

May 20, 2025 EX-99.1

Mirion Technologies Announces Proposed $300.0 Million Offering of Convertible Senior Notes Due 2030

Exhibit 99.1 Mirion Technologies Announces Proposed $300.0 Million Offering of Convertible Senior Notes Due 2030 May 20, 2025 Atlanta, GA – May 20, 2025 (GLOBE NEWSWIRE) – Mirion Technologies, Inc. (“Mirion”) (NYSE: MIR), today announced its intent to offer $300.0 million aggregate principal amount of Convertible Senior Notes due 2030 (the “Notes”) in a private placement (the “Offering”) to person

May 20, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 20, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. E

May 16, 2025 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 15, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. E

April 30, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies,

April 30, 2025 EX-10.2

Amended and Restated Participation Agreement between Alison Ulrich and Mirion Technologies, Inc., effective as of February 25, 2025.

MIRION TECHNOLOGIES, INC. EXECUTIVE SEVERANCE PLAN AMENDED AND RESTATED PARTICIPATION AGREEMENT This AMENDED AND RESTATED PARTICIPATION AGREEMENT (“A & R Participation Agreement”) effective as of February 25, 2025 (the “Effective Date”) is by and between Mirion Technologies, Inc., a Delaware corporation (the “Company”) and Alison Ulrich (“Participant”) and amends and replaces in its entirety the P

April 29, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): April 29, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

April 29, 2025 EX-99.1

Mirion Announces First Quarter 2025 Financial Results and Updates Full Year Guidance

Exhibit 99.1 News Release Mirion Announces First Quarter 2025 Financial Results and Updates Full Year Guidance •Revenues for the first quarter increased 4.9% to $202.0 million, compared to $192.6 million in the same period in 2024. •GAAP net income was $0.4 million in the first quarter, compared to a GAAP net loss of $26.5 million in the same period in 2024; a 102% improvement. Adjusted EBITDA was

April 1, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

April 1, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy State

April 1, 2025 ARS

ARS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies, Inc.

March 21, 2025 EX-10.1

Amendment No. 4 to Credit Agreement by and among Mirion IntermediateCo, Inc., Mirion Technologies (US Holdings), Inc. and Mirion Technologies (US), Inc., the other Credit Parties party thereto, the lending institutions from time to time party thereto and Citibank, N.A., effective as of March 21, 2025.

Execution Version AMENDMENT NO. 4 TO CREDIT AGREEMENT This AMENDMENT No. 4 (this “Amendment”) dated as of March 21, 2025 to the Credit Agreement dated as of October 20, 2021 (as amended or supplemented by the Agreement and Amendment No. 1 to Credit Agreement dated as of November 22, 2021, the Amendment No. 2 to Credit Agreement dated as of June 23, 2023, the Holdings Assumption Agreement dated as

March 21, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): March 21, 2025 Mirion Technologie

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): March 21, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

February 26, 2025 EX-4.2

Description of Securities of Mirion Technologies, Inc.

Exhibit 4.2 DESCRIPTION OF SECURITIES The following description sets forth certain material terms and provisions of the securities of Mirion Technologies, Inc. that are registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). The following summary of the material terms of our securities is not intended to be a complete summary of the rights and preferenc

February 26, 2025 EX-19.1

Insider Trading Policy

Exhibit 19.1 Insider Trading Policy 1.Purpose It is the policy of Mirion Technologies, Inc. (collectively with its subsidiaries, the “Company”) that it will, without exception, comply with all applicable laws and regulations in conducting its business. Each employee and each director of the Company, including its subsidiaries, is expected to abide by this policy. When carrying out Company business

February 26, 2025 EX-21.1

List of Subsidiaries of Mirion Technologies, Inc.

Exhibit 21.1 Mirion Technologies, Inc. List of Subsidiaries Mirion Technologies (TopCo), Ltd. Jersey Mirion IntermediateCo, Inc. Delaware, USA Mirion Technologies (HoldingSub1), Ltd. United Kingdom Mirion Technologies (HoldingSub2), Ltd. United Kingdom Mirion Technologies (US Holdings), Inc. Delaware, USA Mirion Technologies (HoldingRep), Ltd. United Kingdom Mirion Technologies (UK), Ltd. United K

February 26, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion

February 11, 2025 EX-99.1

Mirion Announces Record Fourth Quarter and Record Full Year 2024 Financial Results; Reaffirms Full Year 2025 Guidance

Exhibit 99.1 News Release Mirion Announces Record Fourth Quarter and Record Full Year 2024 Financial Results; Reaffirms Full Year 2025 Guidance •Revenues for the fourth quarter increased 10.4% to $254.3 million, compared to $230.4 million in the same period in 2023. •GAAP net income was $15.9 million in the fourth quarter, compared to a GAAP net loss of $14.5 million in the same period last year;

February 11, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): February 11, 2025 Mirion Technolo

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): February 11, 2025 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R

December 3, 2024 EX-99.1

Mirion to Detail Financial Targets and Long-term Strategy at Today’s Investor Day Leadership team to outline unique position within growing nuclear and cancer care markets

News Release Mirion to Detail Financial Targets and Long-term Strategy at Today’s Investor Day Leadership team to outline unique position within growing nuclear and cancer care markets Atlanta, GA – December 3, 2024 – Mirion (“we” or the “company”) (NYSE: MIR), a leading provider of radiation safety solutions supporting advancements in nuclear power and cancer care, will host an Investor Day today, December 3, 2024, at 2:00pm ET.

December 3, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): December 3, 2024 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.

November 14, 2024 SC 13G/A

MIR / Mirion Technologies, Inc. / T. Rowe Price Investment Management, Inc. Passive Investment

SC 13G/A 1 mir13gasep24.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1) MIRION TECHNOLOGIES INC (Name of Issuer) COMMON STOCK (Title of Class of Securities) 60471A101 (CUSIP NUMBER) September 30, 2024 (Date of Event which Requires Filing of Statement) Check the appropriate box to designate the Rule

November 13, 2024 SC 13D/A

MIR / Mirion Technologies, Inc. / GOLDMAN SACHS GROUP INC Activist Investment

SC 13D/A 1 ff410655813da8-mirion.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 8)* Mirion Technologies, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Titles of Class of Securities) 60471A101 (CUSIP Number) Philip Grovit GSAM Holdings LLC 200 West Street New York, NY 10282

November 6, 2024 SC 13D/A

MIR / Mirion Technologies, Inc. / GOLDMAN SACHS GROUP INC Activist Investment

SC 13D/A 1 ff408322113da7-mirion.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 7)* Mirion Technologies, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Titles of Class of Securities) 60471A101 (CUSIP Number) Philip Grovit GSAM Holdings LLC 200 West Street New York, NY 10282

October 30, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technolog

October 29, 2024 EX-99.1

Mirion Announces Third Quarter 2024 Financial Results and Updates Full Year Guidance

Exhibit 99.1 News Release Mirion Announces Third Quarter 2024 Financial Results and Updates Full Year Guidance •Revenues for the third quarter increased 8.2% to $206.8 million, compared to $191.2 million in the same period in 2023. •Net loss was $14.0 million in the third quarter, compared to a net loss of $12.9 million in the same period last year. Adjusted EBITDA was $45.7 million, a 17.8% incre

October 29, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): October 29, 2024 Mirion Technolog

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): October 29, 2024 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.

August 12, 2024 SC 13G/A

MIR / Mirion Technologies, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 2)* Name of issuer: Mirion Technologies, Inc. Class A Title of Class of Securities: Common Stock CUSIP Number: 60471A101 Date of Event Which Requires Filing of this Statement: July 31, 2024 Check the appropriate box to designate the rule pursuant to which this Schedule i

August 2, 2024 EX-10.1

Mirion Technologies, Inc. Second Amended and Restated Non-Employee Director Compensation Program, dated as of May 15, 2024.

MIRION TECHNOLOGIES, INC. Second Amended and Restated Non-Employee Director Compensation Program May 15, 2024 The Board of Directors (the “Board”) of Mirion Technologies, Inc. (the “Company” approved the following director compensation program (this “Program”) for Non-Employee Directors of the Company. For purposes of this Program, a “Non-Employee Director” is a director who has not served as an e

August 2, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies,

August 1, 2024 EX-99.1

Mirion Announces Second Quarter 2024 Financial Results and Updates Full Year Guidance

Exhibit 99.1 News Release Mirion Announces Second Quarter 2024 Financial Results and Updates Full Year Guidance •Revenues for the second quarter increased 5.0% to $207.1 million, compared to $197.2 million in the same period in 2023. •Net loss was $12.0 million in the second quarter, compared to a net loss of $28.4 million in the same period last year. Adjusted EBITDA was $48.8 million, a 10.2% in

August 1, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): August 1, 2024 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

August 1, 2024 SC 13D/A

MIR / Mirion Technologies, Inc. / GOLDMAN SACHS GROUP INC Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 6)* Mirion Technologies, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Titles of Class of Securities) 60471A101 (CUSIP Number) Philip Grovit GSAM Holdings LLC 200 West Street New York, NY 10282 (212) 859-8000 (Name, Address and Tel

June 6, 2024 SC 13D/A

MIR / Mirion Technologies, Inc. / GOLDMAN SACHS GROUP INC Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5)* Mirion Technologies, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Titles of Class of Securities) 60471A101 (CUSIP Number) Philip Grovit GSAM Holdings LLC 200 West Street New York, NY 10282 (212) 859-8000 (Name, Address and Tel

June 6, 2024 EX-99.9

Certificate delivered by GS Sponsor II LLC on June 4, 2024 (filed herewith).

EX-99.9 3 ff3469529ex999-mirion.htm Exhibit 99.9 CERTIFICATE OF GS SPONSOR II LLC June 4, 2024 WHEREAS, GS Sponsor II LLC (“GS Sponsor”) and Mirion Technologies, Inc. (the “Issuer”) have agreed, pursuant to that certain Warrant Exchange Agreement, dated as of June 4, 2024, between GS Sponsor and the Issuer, to exchange 8,500,000 warrants to purchase Class A Common stock, par value $0.0001 per shar

June 6, 2024 EX-99.8

Exchange Agreement, dated as of June 4, 2024, by and among GS Sponsor II LLC and Mirion Technologies, Inc. (filed herewith).

EX-99.8 2 ff3469529ex998-mirion.htm Exhibit 99.8 WARRANT EXCHANGE AGREEMENT GS Sponsor II LLC (the “Holder”) enters into this Exchange Agreement (the “Agreement”) with Mirion Technologies, Inc. (f/k/a GS Acquisition Holdings Corp II), a Delaware corporation (the “Company”), on June 4, 2024 whereby the Holder will exchange (the “Exchange”) 8,500,000 warrants (the “Private Warrants”) to purchase 8,5

June 4, 2024 424B3

$1,000,000,000 Class A Common Stock Preferred Stock Depositary Shares Debt Securities Warrants Purchase Contracts Units Offered by Mirion Technologies, Inc. Up to 7,326,423 Shares of our Class A Common Stock Issuable upon Redemption of Shares of Inte

Filed Pursuant to Rule 424(b)(3) Registration No. 333-268445 PROSPECTUS SUPPLEMENT (to Prospectus dated November 28, 2022) $1,000,000,000 Class A Common Stock Preferred Stock Depositary Shares Debt Securities Warrants Purchase Contracts Units Offered by Mirion Technologies, Inc. Up to 7,326,423 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common S

June 4, 2024 8-K

Unregistered Sales of Equity Securities, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): June 4, 2024 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. E

June 4, 2024 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): June 4, 2024 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. E

May 30, 2024 EX-1.01

Conflict Minerals Report o

Mirion Technologies, Inc. Conflict Mineral Report For the Reporting Period January 1, 2023 to December 31, 2023 1.Company Overview. Mirion Technologies, Inc. (“Mirion” or the “Company”) is filing this Conflict Minerals Report (this “CMR”) for the reporting period January 1, 2023 to December 31, 2023 (the “Reporting Period”) as an exhibit to its Form SD pursuant to Rule 13p-1 under the Securities E

May 30, 2024 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD Specialized Disclosure Report Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. Employer Identification Number) 1218 Menlo Drive Atlanta, Georgia 30318 (Address of Principal Executive Offices) Emmanuel

May 23, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 23, 2024 Mirion Technologies,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 23, 2024 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. E

May 23, 2024 EX-99.1

Mirion Announces Completion of Redemption of its Outstanding Public Warrants

Mirion Announces Completion of Redemption of its Outstanding Public Warrants ATLANTA – May 23, 2024 – Mirion ("we" or the "Company") (NYSE: MIR), a global provider of radiation detection, measurement, analysis and monitoring solutions to the medical, nuclear, defense, and research end markets, today announced that it completed the redemption of its outstanding publicly traded warrants (the “Public Warrants”) to purchase shares of the Company’s common stock, par value $0.

May 22, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 22, 2024 Mirion Technologies,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 22, 2024 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. E

May 22, 2024 EX-10.1

Amendment No. 3 to Credit Agreement by and among Mirion IntermediateCo, Inc., Mirion Technologies (US Holdings), Inc. and Mirion Technologies (US), Inc., the other Credit Parties party thereto, the lending institutions from time to time party thereto and Citibank, N.A., effective as of May 22, 2024

Execution Version AMENDMENT NO. 3 TO CREDIT AGREEMENT This AMENDMENT No. 3 (this “Amendment”) dated as of May 22, 2024 to the Credit Agreement dated as of October 20, 2021 (as amended or supplemented by the Agreement and Amendment No. 1 to Credit Agreement dated as of November 22, 2021, the Amendment No. 2 to Credit Agreement dated as of June 23, 2023, the Holdings Assumption Agreement dated as of

May 20, 2024 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on May 31, 2024, pursuant to the provisions of Rule 12d2-2 (a).

May 17, 2024 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 17, 2024 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. E

May 1, 2024 EX-10.7

Form of Restricted Stock Unit for Director Award under the 2021 Omnibus Incentive Plan of Mirion Technologies, Inc.

MIRION TECHNOLOGIES, INC. OMNIBUS INCENTIVE PLAN RSU GRANT NOTICE (Directors) Mirion Technologies, Inc., a Delaware corporation (the “Company”), pursuant to its Omnibus Incentive Plan (the “Plan”), hereby grants to the individual listed below (the “Participant”) an Award of RSUs indicated below, which RSUs shall be subject to vesting based on the Participant’s continued service with the Company. T

May 1, 2024 EX-10.1

Employment Agreement between Emmanuelle Lee and Mirion Technologies, Inc. entered into September 15, 2018.

EMPLOYMENT AGREEMENT OF EMMANUELLE LEE EMPLOYMENT AGREEMENT (this "Agreement"), dated as of September 15, 2018 (the "Effective Date"), between Mirion Technologies, Inc.

May 1, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies,

May 1, 2024 EX-10.6

Form of Performance Stock Unit for (Retention) Award under the 2021 Omnibus Incentive Plan of Mirion Technologies, Inc.

MIRION TECHNOLOGIES, INC. 2021 OMNIBUS INCENTIVE PLAN PSU GRANT NOTICE Mirion Technologies, Inc., a Delaware corporation (the “Company”), pursuant to its 2021 Omnibus Incentive Plan (the “Plan”), hereby grants to the individual listed below (the “Participant”) an Award of performance-based RSUs (“PSUs”) indicated below, which PSUs shall be subject to vesting based on specified performance goals se

May 1, 2024 EX-10.3

Amendment No. 2 to the Employment Agreement between Emmanuelle Lee and Mirion Technologies, Inc. entered into August 7, 2023.

AMENDMENT NO. 2 TO EMPLOYMENT AGREEMENT This AMENDMENT NO. 2 TO EMPLOYMENT AGREEMENT (this “Amendment”) is entered into on August 7, 2023 (the “Effective Date”), by and between MIRION TECHNOLOGIES, INC., a Delaware corporation (the “Company”), and EMMANUELLE LEE (“Executive”) (each of Executive and the Company, a “Party” and collectively, the “Parties”). WHEREAS, Executive has been employed by the

May 1, 2024 EX-10.8

Holdings Assumption Agreement, dated as of December 30, 2023 by Mirion Technologies (HoldingSub2), Mirion Intermediate Co, Inc., and Citibank N.A., as administrative agent and collateral agent.

Execution Version HOLDINGS ASSUMPTION AGREEMENT HOLDINGS ASSUMPTION AGREEMENT, dated as of December 30, 2023 (this “Agreement”), made by Mirion Technologies (HoldingSub2), Ltd.

May 1, 2024 EX-10.2

Amendment No. 1 to the Employment Agreement between Emmanuelle Lee and Mirion Technologies, Inc. entered into December 27, 2021.

AMENDMENT NO. 1 TO EMPLOYMENT AGREEMENT This AMENDMENT NO. 1 TO EMPLOYMENT AGREEMENT (this “Amendment”) is entered into this 27th day of December 2021 (the “Effective Date”), by and between MIRION TECHNOLOGIES, INC., a Delaware corporation (the “Company”), and EMMANUELLE LEE (“Executive”) (each of Executive and the Company, a “Party” and collectively, the “Parties”). WHEREAS, Executive has been em

May 1, 2024 EX-10.4

Participation Agreement between Alison Ulrich and Mirion Technologies, Inc. entered into August 7, 2023.

MIRION TECHNOLOGIES, INC. EXECUTIVE SEVERANCE PLAN PARTICIPATION AGREEMENT This PARTICIPATION AGREEMENT (“Agreement”) is effective as of August 7, 2023 (the “Effective Date”), by and between Mirion Technologies, Inc., a Delaware corporation (the “Company”), [EMPLOYER] (the “Employer”) and Alison Ulrich (“Participant”). Capitalized terms used but not defined herein shall have the meanings ascribed

May 1, 2024 EX-10.5

Form of Restricted Stock Unit for Employee (Retention) Award under the 2021 Omnibus Incentive Plan of Mirion Technologies, Inc.

MIRION TECHNOLOGIES, INC. OMNIBUS INCENTIVE PLAN GLOBAL RSU GRANT NOTICE Mirion Technologies, Inc., a Delaware corporation (the “Company”), pursuant to its Omnibus Incentive Plan (the “Plan”), hereby grants to the individual listed below (the “Participant”) an Award of RSUs indicated below, which RSUs shall be subject to vesting based on the Participant’s continued employment or service with the C

April 30, 2024 EX-99.1

Mirion Announces First Quarter 2024 Financial Results and Reaffirms Full Year Guidance

Exhibit 99.1 News Release Mirion Announces First Quarter 2024 Financial Results and Reaffirms Full Year Guidance •Revenues for the first quarter increased 5.8% to $192.6 million, compared to $182.1 million in the same period in 2023. •Net loss was $26.5 million in the first quarter, compared to a net loss of $42.9 million in the same period last year. Adjusted EBITDA was $39.5 million, a 7.9% incr

April 30, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): April 30, 2024 Mirion Technologie

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): April 30, 2024 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

April 23, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy State

April 23, 2024 ARS

ARS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies, Inc.

April 23, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

April 18, 2024 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): April 18, 2024 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

April 18, 2024 EX-99.2

NOTICE OF REDEMPTION OF CERTAIN WARRANTS (CUSIP 60471A 119)

April 18, 2024 NOTICE OF REDEMPTION OF CERTAIN WARRANTS (CUSIP 60471A 119) Dear Public Warrant Holder, Mirion Technologies, Inc.

April 18, 2024 EX-99.1

Mirion Announces Redemption of Public Warrants

Mirion Announces Redemption of Public Warrants ATLANTA – April 18, 2024 – Mirion ("we" or the "Company") (NYSE: MIR, MIR.

February 28, 2024 EX-21.1

List of Subsidiaries of Mirion Technologies, Inc.

Exhibit 21.1 Mirion Technologies, Inc. List of Subsidiaries Mirion Technologies (TopCo), Ltd. Jersey Mirion IntermediateCo, Inc. Delaware, USA Mirion Technologies (HoldingSub1), Ltd. United Kingdom Mirion Technologies (HoldingSub2), Ltd. United Kingdom Mirion Technologies (US Holdings), Inc. Delaware, USA Mirion Technologies (HoldingRep), Ltd. United Kingdom Mirion Technologies (UK), Ltd. United K

February 28, 2024 EX-97

Annual Report on Form 10-K for the fiscal year ended December 31, 2023).

Mirion Technologies Inc., Clawback Policy 1.Purpose The Board of Directors of Mirion Technologies, Inc. (the “Board”) believes that it is in the best interests of Mirion Technologies, Inc. (the “Company”) and its shareholders to create and maintain a culture that emphasizes integrity and accountability and that reinforces the Company’s pay-for-performance compensation philosophy. The Board has the

February 28, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion

February 28, 2024 EX-10.38

Mirion Technologies, Inc. Executive Bonus Plan effective as of January 1, 2024.

MIRION TECHNOLOGIES, INC. EXECUTIVE BONUS PLAN 1. Purpose. The purpose of the Mirion Technologies, Inc. Executive Bonus Plan (the “Plan”) is to promote retention of key executives and to further link an executive’s interests with those of the Company’s by creating a direct relationship between key business and individual performance measurements and individual bonus payouts. The Plan is effective

February 14, 2024 SC 13G

MIR / Mirion Technologies, Inc. / T. Rowe Price Investment Management, Inc. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ) MIRION TECHNOLOGIES INC (Name of Issuer) COMMON STOCK (Title of Class of Securities) 60471A101 (CUSIP NUMBER) December 31, 2023 (Date of Event which Requires Filing of Statement) Check the appropriate box to designate the Rule pursuant to which this Schedu

February 13, 2024 EX-99.1

Mirion Announces Fourth Quarter and Full Year 2023 Financial Results and Provides Full Year 2024 Guidance

Exhibit 99.1 News Release Mirion Announces Fourth Quarter and Full Year 2023 Financial Results and Provides Full Year 2024 Guidance •Revenues for the fourth quarter increased 5.7% to $230.4 million, compared to $217.9 million in the same period last year. •Net loss was $15.2 million in the fourth quarter, compared to a net loss of $153.4 million in the same period last year, a 90.1% improvement. A

February 13, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): February 13, 2024 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R

February 13, 2024 SC 13G/A

MIR / Mirion Technologies, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01466-miriontechnologiesin.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1)* Name of issuer: Mirion Technologies, Inc. Class A Title of Class of Securities: Common Stock CUSIP Number: 60471A101 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropri

February 12, 2024 SC 13G/A

MIR / Mirion Technologies, Inc. / JANUS HENDERSON GROUP PLC - JHG PLC OWNS <5% Passive Investment

SC 13G/A 1 mirion123123.txt JHG PLC OWNS <5% UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Amendment No.: 2* Name of Issuer: Mirion Technologies, Inc. Title of Class of Securities: Class A Common Stock CUSIP Number: 60471A101 Date of Event Which Requires Filing of this Statement: 12/31/2023 Check the appropriate box t

January 26, 2024 SC 13G

MIR / Mirion Technologies, Inc. / BlackRock Inc. Passive Investment

us60471a1016012624.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: ) Mirion Technologies, Inc. - (Name of Issuer) Class A Common Stock - (Title of Class of Securities) 60471A101 - (CUSIP Number) December 31, 2023 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the ru

January 5, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): December 30, 2023 Mirion Technolo

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): December 30, 2023 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R

November 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technolog

November 2, 2023 EX-10.1

Mirion Technologies, Inc. Executive Severance Plan (incorporated by reference to Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2023).

MIRION TECHNOLOGIES, INC. EXECUTIVE SEVERANCE PLAN 1.Purpose The purpose of this plan is to set forth and apply the terms and conditions of the severance policy approved by the Compensation Committee of the Board of Directors of Mirion Technologies, Inc., a Delaware corporation (the “Company”) on November 18, 2021, according to which the Company and its subsidiaries may provide severance payments

November 1, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): November 1, 2023 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.

November 1, 2023 EX-99.1

Mirion Announces Third Quarter 2023 Financial Results and Reiterates Full Year Guidance

Exhibit 99.1 News Release Mirion Announces Third Quarter 2023 Financial Results and Reiterates Full Year Guidance •Revenues for the third quarter increased 18.8% to $191.2 million, compared to $160.9 million in the same period last year. •Net loss was $12.1 million in the third quarter, compared to a net loss of $47.1 million in the same period last year. Adjusted EBITDA was $38.8 million, a 26.0%

October 18, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): October 18, 2023 (October 13, 2023) Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission

August 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies,

August 3, 2023 EX-10.2

for the quarterly period ended June 30, 2023)

MIRION TECHNOLOGIES, INC. Amended and Restated Non-Employee Director Compensation Program 6 June 2023 The Board of Directors (the “Board”) of Mirion Technologies, Inc. (the “Company” approved the following director compensation program (this “Program”) for Non-Employee Directors of the Company. For purposes of this Program, a “Non-Employee Director” is a director who has not served as an employee

August 2, 2023 EX-99.1

Mirion Announces Second Quarter 2023 Financial Results and Updates Full Year Guidance

Exhibit 99.1 News Release Mirion Announces Second Quarter 2023 Financial Results and Updates Full Year Guidance •Revenues for the second quarter increased 12.2% to $197.2 million, compared to $175.8 million in the same period last year. •Net loss was $28.4 million in the second quarter, compared to a net loss of 59.3 million in the same period last year. Adjusted EBITDA was $44.3 million, a 4.0% i

August 2, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): August 2, 2023 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

July 7, 2023 SC 13D/A

MIR / Mirion Technologies Inc. - Class A / GOLDMAN SACHS GROUP INC Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4)* Mirion Technologies, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Titles of Class of Securities) 60471A101 (CUSIP Number) Philip Grovit GSAM Holdings LLC200 West Street New York, NY 10282 (212) 859-8000 (Name, Address and Tele

July 7, 2023 EX-99.1

Joint Filing Agreement, dated July 7, 2023 (filed herewith).

EXHIBIT 99.1 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of the foregoing statement on Schedule 13D with respect to the Class A Common Stock of Mirion Technologies, Inc. The undersigned acknowledge that each shall be responsible for the timely filin

June 27, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): June 23, 2023 Mirion Technologies

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): June 23, 2023 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

June 27, 2023 EX-1.1

Amendment No.2 dated as of June 23, 2023 to the Credit Agreement, dated as of October 21, 2021, among Mirion Technologies (Holdingsub2). Ltd., Mirion Technologies (US Holdings), Inc., Mirion Technologies (US), Inc., Citibank N.A., as Administrative Agent and Collateral Agent and the other parties thereto (incorporated by reference to Exhibit 1.1 to the Company's Current Report on Form 8-K filed with the SEC on June 27, 2023)

Execution Version AMENDMENT NO. 2 TO CREDIT AGREEMENT AMENDMENT (this “Amendment”) dated as of June 23, 2023 to the Credit Agreement dated as of October 20, 2021 (as amended by the Agreement and Amendment No. 1 to Credit Agreement dated as of November 22, 2021, and as further amended, restated, supplemented or otherwise modified from time to time prior to the date hereof, the “Existing Credit Agre

June 21, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Termination of a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): June 20, 2023 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

June 9, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): June 6, 2023 Mirion Technologies,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): June 6, 2023 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. E

June 9, 2023 EX-3.1

Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed with the SEC on June 9, 2023).

AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF MIRION TECHNOLOGIES, INC. The present name of the corporation is Mirion Technologies, Inc. (the “Corporation”). The Corporation was originally incorporated in Delaware by the filing of the Corporation’s original Certificate of Incorporation with the Secretary of State of the State of Delaware on May 31, 2018 under the name GS Acquisition Holding

May 16, 2023 EX-1.1

Underwriting Agreement, dated May 11, 2023, by and among Mirion Technologies, Inc., Citigroup Global Markets, Inc., as underwriter, and the selling stockholders named therein

Execution Version Mirion Technologies, Inc. Class A Common Stock Citigroup Global Markets, Inc. 388 Greenwich Street New York, NY 10013 Ladies and Gentlemen: Underwriting Agreement May 11, 2023 The stockholders named in Schedule II hereto (the "Selling Stockholders") of Mirion Technologies, Inc., a Delaware corporation (the "Company"), propose, subject to the terms and conditions stated in this ag

May 16, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 11, 2023 Mirion Technologies,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 11, 2023 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. E

May 16, 2023 SC 13D/A

MIR / Mirion Technologies Inc. - Class A / Charterhouse General Partners (IX) Ltd - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

May 15, 2023 424B5

7,000,000 Shares of Class A Common Stock

424B5 1 miriontechnologiesinc-pros.htm 424B5 Filed Pursuant to Rule 424(b)(5) Registration No. 333-268445 PROSPECTUS SUPPLEMENT (to Prospectus dated November 28, 2022) 7,000,000 Shares of Class A Common Stock The selling stockholders identified in this prospectus supplement are offering 7,000,000 shares of our Class A common stock, par value $0.0001 per share. We will not receive any proceeds from

May 3, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 3, 2023 Mirion Technologies,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 3, 2023 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. Em

May 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies,

May 3, 2023 EX-99.1

Mirion Announces First Quarter 2023 Financial Results and Reaffirms Full Year Guidance

Exhibit 99.1 News Release Mirion Announces First Quarter 2023 Financial Results and Reaffirms Full Year Guidance •Revenues for the first quarter increased 11.6% to $182.1 million, compared to $163.2 million in the same period in 2022. •Net loss was $42.9 million in the first quarter, compared to a net loss of $19.0 million in the same period last year. Adjusted EBITDA was $36.6 million, a 4.9% inc

April 24, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy State

April 24, 2023 SC 13D/A

MIR / Mirion Technologies Inc. - Class A / GSAM Holdings LLC Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* Mirion Technologies, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Titles of Class of Securities) 60471A101 (CUSIP Number) Philip Grovit GSAM Holdings LLC 200 West Street New York, NY 10282 (212) 859-8000 (Name, Address and Tel

April 24, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of

April 12, 2023 ARS

ARS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies, Inc.

April 12, 2023 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy State

April 6, 2023 SC 13G/A

MIR / Mirion Technologies Inc. - Class A / BlackRock Inc. Passive Investment

us60471a1016040523.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 1) mirion technologies inc - (Name of Issuer) Class A Common Stock - (Title of Class of Securities) 60471A101 - (CUSIP Number) March 31, 2023 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule p

March 8, 2023 SC 13D/A

MIR / Mirion Technologies Inc. - Class A / Charterhouse General Partners (IX) Ltd - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

March 7, 2023 EX-1.1

Underwriting Agreement, dated March 2, 2023, by and among Mirion Technologies, Inc., Jefferies LLC, as underwriter, and the selling stockholders named therein

Mirion Technologies, Inc. Class A Common Stock Underwriting Agreement March 2, 2023 Jefferies LLC 520 Madison Avenue New York, New York 10022 Ladies and Gentlemen: The stockholders named in Schedule II hereto (the "Selling Stockholders") of Mirion Technologies, Inc., a Delaware corporation (the "Company"), propose, subject to the terms and conditions stated in this agreement (this “Agreement”), to

March 7, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): March 2, 2023 Mirion Technologies

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): March 2, 2023 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

March 6, 2023 424B5

Per Share Total Price to public $ 8.750 $ 85,628,838.75 Underwriting discounts and commissions(1) $ 0.105 $ 1,027,546.07 Proceeds to the selling stockholders (before expenses) $ 8.645 $ 84,601,292.69

Filed Pursuant to Rule 424(b)(5) Registration No. 333-268445 PROSPECTUS SUPPLEMENT (to Prospectus dated November 28, 2022) The selling stockholders identified in this prospectus supplement are offering 9,786,153 shares of our Class A common stock, par value $0.0001 per share. We will not receive any proceeds from the sale of the Class A common stock by the selling stockholders. Shares of our Class

March 1, 2023 EX-3.1

Amended and Restated Bylaws (incorporated by reference to Exhibit 3.2 to the Company's Current Report on Form 8-K filed with the SEC on March 1, 2023).

AMENDED AND RESTATED BYLAWS OF MIRION TECHNOLOGIES, INC. * * * * * ARTICLE 1 OFFICES a.Registered Office. The address of the registered office of Mirion Technologies, Inc. (the “Corporation”) in the State of Delaware is 850 New Burton Road, Suite 201, Dover, Delaware 19904, Kent County. The name of the registered agent of the Corporation at such address is Cogency Global Inc. b.Other Offices. The

March 1, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): February 28, 2023 Mirion Technolo

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): February 28, 2023 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R

February 28, 2023 EX-10.35

Amendment No. 1 to the Employment Agreement between Loic Eloy and Mirion Technologies (MGPI) SAS entered into as of February 3, 2022 (incorporated by reference to Exhibit 10.35 to the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2022).

Exhibit 10.35 ADDENDUM n°1 TO AN EMPLOYMENT CONTRACT Between the undersigned : MIRION TECHNOLOGIES (MGPI) SAS, with a capital of € 22 025 010, having its registered office in Lamanon (Bouches du Rhône), Registered in R.C.S. under number 303 375 406 00020 code NAF 2651 B Represented by Mr. Pierre CANGE, HR Director Group France, acting as ès quality, Hereinafter referred to as "the employer" or "th

February 28, 2023 EX-21.1

List of Subsidiaries of Mirion Technologies, Inc.

Exhibit 21.1 Mirion Technologies, Inc. List of Subsidiaries Mirion Technologies (TopCo), Ltd. Jersey Mirion IntermediateCo, Inc. Delaware, USA Mirion Technologies (HoldingSub1), Ltd. United Kingdom Mirion Technologies (HoldingSub2), Ltd. United Kingdom Mirion Technologies (US Holdings), Inc. Delaware, USA Mirion Technologies (HoldingRep), Ltd. United Kingdom Mirion Technologies (UK), Inc. United K

February 28, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies, Inc.

February 28, 2023 EX-10.33

Employment Agreement between Michael Rossi and Mirion Technologies (US), Inc. entered into as of October 1, 2022.

Exhibit 10.33 EMPLOYMENT AGREEMENT OF MICHAEL ROSSI This EMPLOYMENT AGREEMENT (this “Agreement”), is entered into effective as of October 1, 2022 (the “Effective Date”), between Mirion Technologies (US), Inc., a Delaware corporation (the “Company”) and Michael Rossi (“Executive”). In consideration of the mutual agreements set forth below and in the Confidentiality, Non-Interference and Intellectua

February 28, 2023 EX-10.34

Employment Agreement between Loic Eloy and Mirion Technologies (MGPI) SAS entered into as of February 7, 2019 (incorporated by reference to Exhibit 10.34 to the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2022).

Exhibit 10.34 PERMANENT EMPLOYMENT CONTRACT Between the undersigned: MIRION TECHNOLOGIES (MGPI) SAS, with capital of €22,025,010, having its registered office at Lamanon (Bouches du Rhône), entered in the Trade and Companies Register under number 303 375 406 00020 NAF code 2651 B Represented by Mr Pierre Cange, Group HRD France, acting in its official capacity, Hereinafter referred to as the “Empl

February 21, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): February 21, 2023 Mirion Technolo

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): February 21, 2023 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R

February 21, 2023 424B5

17,142,857 Shares of Class A Common Stock

Filed Pursuant to Rule 424(b)(5) Registration No. 333-268445 PROSPECTUS SUPPLEMENT (to Prospectus dated November 28, 2022) 17,142,857 Shares of Class A Common Stock We are offering 17,142,857 shares of our Class A common stock, par value $0.0001 per share, in a registered direct offering at $8.75 per share directly to certain institutional investors pursuant to this prospectus supplement, the acco

February 21, 2023 EX-99.1

Mirion Technologies Announces $150 Million Investment from T. Rowe Price, Priced At-the-Market

Exhibit 99.1 News Release Mirion Technologies Announces $150 Million Investment from T. Rowe Price, Priced At-the-Market •Funds and accounts advised by T. Rowe Price Investment Management, Inc. invest $150 million in Mirion to acquire 17,142,857 shares of Mirion common stock at $8.75 per share. •Mirion intends to use approximately $125 million to pay down debt, with a target net leverage ratio of

February 21, 2023 EX-1.1

Form of Subscription Agreement dated February 21, 2023, between Mirion Technologies, Inc. and certain institutional investors

Exhibit 1.1 EXECUTION VERSION SUBSCRIPTION AGREEMENT This Subscription Agreement (this “Subscription Agreement”) is entered into this day of February, 2023, by and between Mirion Technologies, Inc., a Delaware corporation (the “Issuer”), and the entity named on the signature page hereto (“Subscriber”). RECITALS WHEREAS, Subscriber desires to subscribe for and purchase from the Issuer that number o

February 14, 2023 EX-99.1

Mirion Technologies Announces Fourth Quarter and Fiscal Year 2022 Financial Results and Provides Fiscal Year 2023 Financial Guidance

Exhibit 99.1 News Release Mirion Technologies Announces Fourth Quarter and Fiscal Year 2022 Financial Results and Provides Fiscal Year 2023 Financial Guidance •Revenues for the fourth quarter increased 22.6% to $217.9 million, compared to $177.8 million in the same period in 2021. Adjusted revenues increased 20.5% compared to the fourth quarter of 2021. •GAAP net loss was $159.7 million in the fou

February 14, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): February 14, 2023 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R

February 10, 2023 SC 13G/A

MIR / Mirion Technologies, Inc. Class A Common Stock / JANUS HENDERSON GROUP PLC - JHG PLC OWNS >5% Passive Investment

SC 13G/A 1 mirion02102023.txt JHG PLC OWNS >5% UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Amendment No.: 1* Name of Issuer: Mirion Technologies, Inc. Title of Class of Securities: Class A Common Stock CUSIP Number: 60471A101 Date of Event Which Requires Filing of this Statement: 12/31/2022 Check the appropriate box

February 9, 2023 SC 13G

MIR / Mirion Technologies, Inc. Class A Common Stock / VANGUARD GROUP INC - SCHEDULE 13G Passive Investment

SC 13G 1 tv01434-miriontechnologiesin.htm SCHEDULE 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 Name of issuer: Mirion Technologies Inc. Title of Class of Securities: Common Stock CUSIP Number: 60471A101 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule pur

February 3, 2023 SC 13G

MIR / Mirion Technologies, Inc. Class A Common Stock / BlackRock Inc. Passive Investment

us60471a1016020323.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: ) mirion technologies inc - (Name of Issuer) Class A Common Stock - (Title of Class of Securities) 60471A101 - (CUSIP Number) December 31, 2022 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule

December 22, 2022 SC 13G

MIR / Mirion Technologies, Inc. Class A Common Stock / JANUS HENDERSON GROUP PLC - JHG PLC OWNS 6% Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Amendment No.: 0* Name of Issuer: Mirion Technologies, Inc. Title of Class of Securities: Class A Common Stock CUSIP Number: 60471A101 Date of Event Which Requires Filing of this Statement: 12/31/2021 Check the appropriate box to designate the rule pursuant to which this S

December 7, 2022 SC 13D/A

MIR / Mirion Technologies, Inc. Class A Common Stock / GSAM Holdings LLC Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* Mirion Technologies, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Titles of Class of Securities) 60471A101 (CUSIP Number) Mark Wetzel GSAM Holdings LLC 200 West Street New York, NY 10282 (212) 859-8000 (Name, Address and Telep

November 28, 2022 424B3

Class A Common Stock Preferred Stock Depositary Shares Debt Securities Purchase Contracts Offered by Mirion Technologies, Inc. Up to 8,040,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stoc

Filed Pursuant to Rule 424(b)(3) Registration No. 333-268445 PROSPECTUS $1,000,000,000 Class A Common Stock Preferred Stock Depositary Shares Debt Securities Warrants Purchase Contracts Units Offered by Mirion Technologies, Inc. Up to 8,040,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock and Up to 27,249,879 Shares of our Class A Com

November 22, 2022 CORRESP

MIRION TECHNOLOGIES, INC. 1218 Menlo Drive Atlanta, Georgia 30318

MIRION TECHNOLOGIES, INC. 1218 Menlo Drive Atlanta, Georgia 30318 November 22, 2022 Division of Corporation Finance United States Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 RE: Mirion Technologies, Inc. Registration Statement on Form S-3 File No. 333-268445 Ladies and Gentlemen: Mirion Technologies, Inc. (the ?Registrant?) hereby requests that the U.S. Securities

November 21, 2022 LETTER

LETTER

United States securities and exchange commission logo November 21, 2022 Thomas Logan Chief Executive Officer Mirion Technologies, Inc.

November 17, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): November 17, 2022 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R

November 17, 2022 EX-4.4

Form of Indenture for Senior Debt Securities.

Exhibit 4.4 MIRION TECHNOLOGIES, INC., Issuer AND [TRUSTEE], Trustee INDENTURE Dated as of [?] Senior Debt Securities TABLE OF CONTENTS1 ARTICLE 1 DEFINITIONS Section 1.01 Definitions of Terms ARTICLE 2 ISSUE, DESCRIPTION, TERMS, EXECUTION, REGISTRATION AND EXCHANGE OF SECURITIES Section 2.01 Designation and Terms of Securities Section 2.02 Form of Securities and Trustee?s Certificate Section 2.03

November 17, 2022 EX-99.2

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.2 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION Capitalized terms included below but not defined have the meanings set forth in Appendix A. The following unaudited pro forma condensed combined statement of operations for the year ended December 31, 2021 presents the historical financial statements of GSAH (the ?Company?) adjusted to reflect the Business Combination. The C

November 17, 2022 EX-FILING FEES

Filing Fee Table.

EX-FILING FEES 2 exhibit107-sx3.htm EX-FILING FEES Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Mirion Technologies, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculati on or Carry Forward Rule Amount Register ed Proposed Maximum Offering Price Per Unit Maximum Aggre

November 17, 2022 EX-4.5

Form of Indenture for Subordinated Debt Securities.

Exhibit 4.5 MIRION TECHNOLOGIES, INC., Issuer AND [TRUSTEE], Trustee INDENTURE Dated as of [l] Subordinated Debt Securities TABLE OF CONTENTS1 ARTICLE 1 DEFINITIONS Section 1.01 Definitions of Terms ARTICLE 2 ISSUE, DESCRIPTION, TERMS, EXECUTION, REGISTRATION AND EXCHANGE OF SECURITIES Section 2.01 Designation and Terms of Securities Section 2.02 Form of Securities and Trustee?s Certificate Sectio

November 17, 2022 EX-99.1

Report of Independent Registered Public Accounting Firm

Exhibit 99.1 Report of Independent Registered Public Accounting Firm To the Board of Directors and Stockholders of Mirion Technologies, Inc. Opinion on the Financial Statements We have audited the accompanying balance sheets of Mirion Technologies, Inc. (formerly known as GS Acquisition Holdings Corp II) (the ?Company?) as of October 19, 2021 and December 31, 2020, and the related statements of op

November 17, 2022 S-3

As filed with the Securities and Exchange Commission on November 17, 2022

As filed with the Securities and Exchange Commission on November 17, 2022 Registration No.

November 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technolog

November 3, 2022 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440

Filed Pursuant to Rule 424(b)(3)  Registration No. 333-260528 Prospectus Supplement No. 7 (to prospectus dated March 11, 2022) Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440 Shares of our Class A C

November 3, 2022 EX-10.1

Retention Bonus Agreement between Brian Schopfer and Mirion Technologies, Inc. dated September 30, 2022 (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2022)

September 30, 2022 Brian Schopfer Re: Retention Bonus Dear Brian: We consider your continued service and dedication to Mirion Technologies (US), Inc.

November 1, 2022 EX-99.1

Mirion Technologies Announces Third Quarter 2022 Financial Results

Exhibit 99.1 News Release Mirion Technologies Announces Third Quarter 2022 Financial Results ?Revenues for the third quarter increased 11.5% to $160.9 million, compared to $144.3 million in the same period in 2021. Adjusted revenues increased 8.7% compared to the third quarter of 2021. ?GAAP net loss was $50.4 million in the third quarter, compared to a net loss of $46.7 million in the same period

November 1, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): November 1, 2022 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.

October 19, 2022 SC 13D/A

MIR / Mirion Technologies, Inc. Class A Common Stock / GSAM Holdings LLC Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* Mirion Technologies, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Titles of Class of Securities) 60471A101 (CUSIP Number) Raanan Agus GSAM Holdings LLC 200 West Street New York, NY 10282 (212) 859-8000 (Name, Address and Telep

October 14, 2022 SC 13G/A

MIR / Mirion Technologies, Inc. Class A Common Stock / GOLDMAN SACHS ASSET MANAGEMENT, L.P. - MIRION TECHNOLOGIES, INC. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* MIRION TECHNOLOGIES, INC. - (Name of Issuer) Class A Common Stock, $0.0001 par value per share - (Title of Class of Securities) 60471A101 - (CUSIP Number) February 28, 2022 - (Date of Event Which Requires Filing of this Statement) Check the appropriate b

October 3, 2022 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): October 3, 2022 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S

October 3, 2022 EX-99.1

Mirion Technologies Appoints Michael Rossi as President of Mirion Medical

News Release Mirion Technologies Appoints Michael Rossi as President of Mirion Medical Atlanta, GA ? October 3, 2022 ? Mirion Technologies, Inc.

October 3, 2022 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440

Filed Pursuant to Rule 424(b)(3) ?Registration No. 333-260528 Prospectus Supplement No. 6 (to prospectus dated March 11, 2022) Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440 Shares of our Class A C

September 21, 2022 SC 13D/A

MIR / Mirion Technologies, Inc. Class A Common Stock / Charterhouse General Partners (IX) Ltd - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

September 19, 2022 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): September 13, 2022 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.

September 19, 2022 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440

Filed Pursuant to Rule 424(b)(3) ?Registration No. 333-260528 Prospectus Supplement No. 5 (to prospectus dated March 11, 2022) Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440 Shares of our Class A C

September 19, 2022 EX-99.1

Mirion Technologies Appoints Dr. Sheila Rege, M.D. to Board of Directors, Replacing Mr. Christopher Warren

News Release Mirion Technologies Appoints Dr. Sheila Rege, M.D. to Board of Directors, Replacing Mr. Christopher Warren Atlanta, GA ? September 19, 2022 ? Mirion Technologies, Inc. (?Mirion,? ?we? or the ?Company?) (NYSE: MIR), a global provider of radiation detection, measurement, analysis and monitoring solutions to the medical, nuclear, defense, and research end markets, today announced that Dr

August 1, 2022 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440

Filed Pursuant to Rule 424(b)(3) ?Registration No. 333-260528 Prospectus Supplement No. 4 (to prospectus dated March 11, 2022) Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440 Shares of our Class A C

July 29, 2022 EX-99.1

Mirion Technologies Announces Second Quarter 2022 Financial Results and Confirms Full Year Guidance

Exhibit 99.1 News Release Mirion Technologies Announces Second Quarter 2022 Financial Results and Confirms Full Year Guidance ?Revenues for the second quarter decreased 2.3% to $175.8 million, compared to $180.0 million in the same period in 2021. Adjusted revenues decreased 4.3% compared to the second quarter of 2021. ?GAAP Net loss was $59.3 million in the second quarter, compared to a net loss

July 29, 2022 EX-10.1

Form of Performance-Based Restricted Stock Unit Award under the 2021 Omnibus Incentive Plan of Mirion Technologies, Inc. (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2022)

MIRION TECHNOLOGIES, INC. 2021 OMNIBUS INCENTIVE PLAN PSU GRANT NOTICE Mirion Technologies, Inc., a Delaware corporation (the ?Company?), pursuant to its 2021 Omnibus Incentive Plan (the ?Plan?), hereby grants to the individual listed below (the ?Participant?) an Award of performance-based RSUs (?PSUs?) indicated below, which PSUs shall be subject to vesting based on specified performance goals se

July 29, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies,

July 29, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): July 29, 2022 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

June 17, 2022 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440

Filed Pursuant to Rule 424(b)(3) ?Registration No. 333-260528 Prospectus Supplement No. 3 (to prospectus dated March 11, 2022) Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440 Shares of our Class A C

June 17, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): June 15, 2022 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

May 23, 2022 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440

Filed Pursuant to Rule 424(b)(3) ?Registration No. 333-260528 Prospectus Supplement No. 2 (to prospectus dated March 11, 2022) Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440 Shares of our Class A C

May 20, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 18, 2022 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. E

May 5, 2022 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440

Filed Pursuant to Rule 424(b)(3) ?Registration No. 333-260528 Prospectus Supplement No. 1 (to prospectus dated March 11, 2022) Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440 Shares of our Class A C

May 5, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies,

May 4, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 4, 2022 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S. Em

May 4, 2022 EX-99.1

Mirion Technologies Announces First Quarter 2022 Financial Results and Updates Full Year Guidance

Exhibit 99.1 News Release Mirion Technologies Announces First Quarter 2022 Financial Results and Updates Full Year Guidance ?Revenues for the first quarter decreased 1.8% to $163.2 million, compared to $166.2 million in the same period in 2021. Adjusted revenues decreased by 4.3% compared to the first quarter of 2021. ?Net loss was $19.0 million in the first quarter, an improvement from a net loss

April 20, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of

April 20, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

March 11, 2022 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440

Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-260528 PROSPECTUS Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 143,250,440 Shares of our Class A Common Stock for Resale by the Selling

March 10, 2022 SC 13G

MIR / Mirion Technologies, Inc. Class A Common Stock / GOLDMAN SACHS ASSET MANAGEMENT, L.P. - MIRION TECH Passive Investment

SC 13G 1 Mirionfinal.txt MIRION TECH UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* MIRION TECHNOLOGIES, INC. - (Name of Issuer) Class A Common Stock, $0.0001 par value per share - (Title of Class of Securities) 60471A101 - (CUSIP Number) February 28, 2022 - (Date of Event Which Requires Filing of thi

March 8, 2022 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 152,157,565

Filed Pursuant to Rule 424(b)(3) ?Registration No. 333-260528 Prospectus Supplement No. 8 (to prospectus dated November 4, 2021) Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 152,157,565 Shares of our Class A

March 8, 2022 EX-16.1

Letter from PricewaterhouseCoopers LLP to the Securities and Exchange Commission, dated March 8, 2022.

Exhibit 16.1 March 8, 2022 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Commissioners: We have read the statements made by Mirion Technologies, Inc. (formerly known as GS Acquisition Holdings Corp II) pursuant to Item 304(a)(1) of Regulation S-K (copy attached), which we understand will be filed with the Securities and Exchange Commission as part of the Registration S

March 8, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): March 8, 2022 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R.S.

March 8, 2022 POS AM

As filed with the Securities and Exchange Commission on March 8, 2022 Registration No. 333-260528 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECU

Table of Contents As filed with the Securities and Exchange Commission on March 8, 2022 Registration No.

March 3, 2022 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 152,157,565

Filed Pursuant to Rule 424(b)(3) ?Registration No. 333-260528 Prospectus Supplement No. 7 (to prospectus dated November 4, 2021) Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 152,157,565 Shares of our Class A

March 3, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): February 28, 2022 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R

March 1, 2022 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 152,157,565

Filed Pursuant to Rule 424(b)(3) ?Registration No. 333-260528 Prospectus Supplement No. 6 (to prospectus dated November 4, 2021) Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 152,157,565 Shares of our Class A

February 28, 2022 EX-10.10

Form of Restricted Stock Unit for Director Award under the 2021 Omnibus Incentive Plan of Mirion Technologies, Inc.

MIRION TECHNOLOGIES, INC. OMNIBUS INCENTIVE PLAN RSU GRANT NOTICE (Directors) Mirion Technologies, Inc., a Delaware corporation (the ?Company?), pursuant to its Omnibus Incentive Plan (the ?Plan?), hereby grants to the individual listed below (the ?Participant?) an Award of RSUs indicated below, which RSUs shall be subject to vesting based on the Participant?s continued service with the Company. T

February 28, 2022 EX-21.1

List of Subsidiaries of Mirion Technologies, Inc.

Exhibit 21.1 Mirion Technologies, Inc. List of Subsidiaries Mirion Technologies (TopCo), Ltd. Jersey Mirion IntermediateCo, Inc. Delaware, USA Mirion Technologies (HoldingSub1), Ltd. United Kingdom Mirion Technologies (HoldingSub2), Ltd. United Kingdom Mirion Technologies (US Holdings), Inc. Delaware, USA Mirion Technologies (HoldingRep), Ltd. United Kingdom Mirion Technologies (UK), Inc. United K

February 28, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39352 Mirion Technologies, Inc.

February 28, 2022 EX-4.4

Exhibit 4.4

Exhibit 4.4 DESCRIPTION OF SECURITIES The following description sets forth certain material terms and provisions of the securities of Mirion Technologies, Inc. that are registered under Section 12 of the Securities Exchange Act of 1934, as amended (the ?Exchange Act?). The following summary of the material terms of our securities is not intended to be a complete summary of the rights and preferenc

February 28, 2022 EX-10.9

Award under the 2021 Omnibus Incentive Plan of Mirion Technologies, Inc.

MIRION TECHNOLOGIES, INC. OMNIBUS INCENTIVE PLAN PSU GRANT NOTICE Mirion Technologies, Inc., a Delaware corporation (the ?Company?), pursuant to its Omnibus Incentive Plan (the ?Plan?), hereby grants to the individual listed below (the ?Participant?) an Award of performance-based RSUs (?PSUs?) indicated below, which PSUs shall be subject to vesting based on specified performance goals set forth in

February 28, 2022 EX-10.8

Award under the 2021 Omnibus Incentive Plan of Mirion Technologies, Inc.

MIRION TECHNOLOGIES, INC. OMNIBUS INCENTIVE PLAN GLOBAL RSU GRANT NOTICE Mirion Technologies, Inc., a Delaware corporation (the ?Company?), pursuant to its Omnibus Incentive Plan (the ?Plan?), hereby grants to the individual listed below (the ?Participant?) an Award of RSUs indicated below, which RSUs shall be subject to vesting based on the Participant?s continued employment or service with the C

February 28, 2022 EX-10.2

Amendment to Credit Agreement dated as of November 22, 2021, by and between Mirion Technologies (HoldingSub2), Ltd., a limited liability company incorporated in England and Wales, as Holdings, Mirion Technologies (US Holdings), Inc., as the Parent Borrower, Mirion Technologies (US), Inc., as the Subsidiary Borrower, the lending institutions party thereto and Citibank, N.A., as Administrative Agent and Collateral Agent (incorporated by reference to Exhibit 10.2 to the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2021

EXECUTION VERSION #95152168v8 AGREEMENT AND AMENDMENT NO. 1 TO CREDIT AGREEMENT AMENDMENT (this ?Amendment?) dated as of November 22, 2021 to the Credit Agreement dated as of October 20, 2021 (the ?Credit Agreement?) among MIRION TECHNOLOGIES (HOLDINGSUB2), LTD., a limited liability company incorporated in England and Wales with company number 09299632 (?Holdings?), MIRION TECHNOLOGIES (US HOLDING

February 25, 2022 SC 13G/A

US60471A1016 / Mirion Technologies, Inc. / Alyeska Investment Group, L.P. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No.

February 23, 2022 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 152,157,565

Filed Pursuant to Rule 424(b)(3) ?Registration No. 333-260528 Prospectus Supplement No. 5 (to prospectus dated November 4, 2021) Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 152,157,565 Shares of our Class A

February 23, 2022 EX-99.1

Mirion Technologies Announces Results for the Fiscal Quarter and Fiscal Year Ended December 31, 2021

Exhibit 99.1 News Release Mirion Technologies Announces Results for the Fiscal Quarter and Fiscal Year Ended December 31, 2021 ?Revenues for the fiscal quarter ended December 31, 2021 increased 18% to $177.8 million, compared to $150.8 million in the prior-year period. Adjusted revenues increased by 20% for the same period. ?GAAP net loss for the successor period of October 20, 2021 to December 31

February 23, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): February 18, 2022 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R

February 15, 2022 SC 13G/A

GSAH / GS Acquisition Holdings Corp / Alyeska Investment Group, L.P. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No.

February 14, 2022 SC 13G/A

US60471A1016 / Mirion Technologies, Inc. / Ratan Capital Management LP Passive Investment

OMB APPROVAL OMB Number: Expires: Estimated average burden hours per response??? UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

February 9, 2022 SC 13G/A

US60471A1016 / Mirion Technologies, Inc. / INTEGRATED CORE STRATEGIES (US) LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (AMENDMENT NO. 2) MIRION TECHNOLOGIES, INC. (formerly GS Acquisition Holdings Corp II) (Name of Issuer) CLASS A COMMON STOCK, PAR VALUE $0.0001 PER SHARE (Title of Class of Securities) 60471A101 (CUSIP Number) DECEMBER 31, 2021 (Date of event which requires filing of this

December 29, 2021 EX-10.2

Amendment No. 1 to the Third Amended and Restated Employment Agreement between Brian Schopfer and Mirion Technologies, Inc., entered into on December 27, 2021 (incorporated by reference to Exhibit 10.2 to the Company's Current Report on Form 8-K filed with the SEC on December 29, 2021).

Exhibit 10.2 Amendment NO. 1 to THIRD AMENDED AND RESTATED employment Agreement This AMENDMENT NO. 1 TO THIRD AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this ?Amendment?) is entered into this 27 day of December 2021 (the ?Effective Date?), by and between MIRION TECHNOLOGIES, INC., a Delaware corporation (the ?Company?), and BRIAN SCHOPFER (?Executive?) (each of Executive and the Company, a ?Party?

December 29, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): December 27, 2021 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R

December 29, 2021 EX-10.3

Amendment No. 1 to the Employment Agreement between Michael Freed and Mirion Technologies, Inc., entered into on December 27, 2021 (incorporated by reference to Exhibit 10.3 to the Company's Current Report on Form 8-K filed with the SEC on December 29, 2021).

Exhibit 10.3 Amendment NO. 1 to employment Agreement This AMENDMENT NO. 1 TO THIRD AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this ?Amendment?) is entered into this 27 day of December 2021 (the ?Effective Date?), by and between MIRION TECHNOLOGIES, INC., a Delaware corporation (the ?Company?), and MICHAEL FREED (?Executive?) (each of Executive and the Company, a ?Party? and collectively, the ?Part

December 29, 2021 EX-10.1

Amendment No. 1 to the Amended and Restated Employment Agreement between Thomas Logan and Mirion Technologies, Inc., entered into on December 27, 2021 (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed with the SEC on December 29, 2021).

Exhibit 10.1 Amendment NO. 1 to AMENDED AND RESTATED employment Agreement This AMENDMENT NO. 1 TO AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this ?Amendment?) is entered into this 27 day of December 2021 (the ?Effective Date?), by and between MIRION TECHNOLOGIES, INC., a Delaware corporation (the ?Company?), and THOMAS D. LOGAN (?Executive?) (each of Executive and the Company, a ?Party? and collec

December 29, 2021 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 152,157,565

Filed Pursuant to Rule 424(b)(3) ?Registration No. 333-260528 Prospectus Supplement No. 4 (to prospectus dated November 4, 2021) Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 152,157,565 Shares of our Class A

December 27, 2021 S-8

As filed with the Securities and Exchange Commission on December 27, 2021

As filed with the Securities and Exchange Commission on December 27, 2021 Registration No.

December 13, 2021 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 152,157,565

Filed Pursuant to Rule 424(b)(3) Registration No. 333-260528 Prospectus Supplement No. 3 (to prospectus dated November 4, 2021) Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 152,157,565 Shares of our Class A

December 13, 2021 8-K/A

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 3) CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): October 19, 2021 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commissio

December 13, 2021 EX-99.1

Report of Independent Registered Public Accounting Firm

Exhibit 99.1 Report of Independent Registered Public Accounting Firm To the Board of Directors and Stockholders of Mirion Technologies, Inc. Opinion on the Financial Statements We have audited the accompanying balance sheets of Mirion Technologies, Inc. (formerly known as GS Acquisition Holdings Corp II) (the ?Company?) as of October 19, 2021 and December 31, 2020, and the related statements of op

November 12, 2021 8-K/A

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 2) CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): October 19, 2021 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commissio

November 12, 2021 424B3

Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 152,157,565

Filed Pursuant to Rule 424(b)(3) Registration No. 333-260528 Prospectus Supplement No. 2 (to prospectus dated November 4, 2021) Mirion Technologies, Inc. Up to 8,560,540 Shares of our Class A Common Stock Issuable upon Redemption of Shares of IntermediateCo Class B Common Stock Up to 27,249,979 Shares of our Class A Common Stock Issuable upon Exercise of Warrants 152,157,565 Shares of our Class A

November 12, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): November 12, 2021 Mirion Technologies, Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 001-39352 83-0974996 (State or Incorporation) (Commission File Number) (I.R

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