Mirion Technologies, Inc.

This Proxy Summary highlights information contained elsewhere in this proxy statement and does not contain all of the information that you should consider. Please read the entire proxy statement carefully before voting.

We are providing you with these proxy materials because the Board of Directors of Mirion Technologies, Inc. (the “Board”) is soliciting your proxy to vote at Mirion’s 2024 Annual Meeting of Stockholders (the “Annual Meeting”), including at any adjournments or postponements thereof, to be held via a live webcast on Tuesday, June 4, 2024 at 10:00 a.m. Eastern Time. The Annual Meeting can be accessed by visiting www.virtualshareholdermeeting.com/MIR2024 where you will be able to listen to the meeting live, submit questions and vote online.

You are invited to attend the Annual Meeting to vote on the proposals described in this Proxy Statement. However, you do not need to attend the Annual Meeting to vote your shares. Instead, you may simply follow the instructions below to submit your proxy. The proxy materials, including this Proxy Statement and our Annual Report on Form 10-K for the year ended December 31, 2023 (the "Annual Report"), are first being distributed and made available on or about April 23, 2024.

On October 20, 2021 (the "Closing" or the “Closing Date”), Mirion Technologies, Inc. (formerly known as GS Acquisition Holdings Corp II or "GSAH") consummated its business combination with GSAH (the "Business Combination") pursuant to the Business Combination Agreement dated June 17, 2021 (as amended, the “Business Combination Agreement”). On the Closing Date, GSAH was renamed Mirion Technologies, Inc. Unless the context otherwise requires, all references to “Mirion,” the “Company,” “we,” “us,” or “our” refer to Mirion Technologies, Inc. following the Business Combination, other than certain historical information which refers to the business of Mirion Technologies (TopCo), Ltd. (“Mirion TopCo”) prior to the consummation of the Business Combination. As a result of the Business Combination, Mirion’s financial statement presentation distinguishes Mirion TopCo as the “Predecessor” for periods prior to the closing of the Business Combination and Mirion Technologies, Inc. as the “Successor” for periods after the closing of the Business Combination. As a result of the application of the acquisition method of accounting in the Successor Period, the financial statements for the Successor Period are presented on a full step-up basis as a result of the Business Combination, and are therefore not comparable to the financial statements of the Predecessor Period that are not presented on the same full step-up basis due to the Business Combination. For more information, please see our Annual Report on Form 10-K for the year ended December 31, 2023.

Information contained on, or that can be accessed through, our website is not intended to be incorporated by reference into this proxy statement and references to our website address in this proxy statement are inactive textual references only.

To assist you in reviewing the proposals to be acted upon at the Annual Meeting, we call your attention to the following information. The following description is only a summary.

Meeting Details

Meeting Agenda