Form 4: Mirion Technologies CLO Sells Shares Under 10b5-1 Plan

Mirion Technologies' Chief Legal Officer, Emmanuelle Lee, sold 12,500 shares of Class A Common Stock for approximately $342,642 pursuant to a pre-arranged trading plan.

Summary

• Emmanuelle Lee, Chief Legal Officer of Mirion Technologies, Inc. (MIR), reported a sale of Class A Common Stock.
• The transaction involved the disposition of 12,500 shares of Class A Common Stock.
• The shares were sold at a price of $27.4114 per share.
• The total value of the transaction was approximately $342,642.50.
• The sale was executed on November 10, 2025.
• This transaction was conducted pursuant to a Rule 10b5-1 trading plan, which was adopted by Emmanuelle Lee on August 11, 2025.
• Following the reported transaction, Emmanuelle Lee directly beneficially owns 84,640 shares of Class A Common Stock and 138,193 shares of Class B Common Stock.
• Additionally, 32,748 shares of Class B Common Stock are indirectly beneficially owned by Emmanuelle Lee through the Lee Revocable Living Trust.

Sentiment

Score: 6

Explanation: The sentiment is neutral to slightly positive. While it's an insider sale, the fact that it's under a Rule 10b5-1 plan mitigates negative interpretations, as it indicates a pre-scheduled disposition rather than a reaction to adverse company news. The transaction is a routine part of personal financial planning for executives.

Negatives

• Insider selling, even when pre-planned, can sometimes be perceived by the market as a lack of conviction in the company's future prospects, although the 10b5-1 plan mitigates this concern.

Future Outlook

NA

Industry Context

This filing reports an individual insider transaction and does not provide broader industry context or trends.

Related Party Transactions

• Emmanuelle Lee indirectly beneficially owns 32,748 shares of Class B Common Stock through the Lee Revocable Living Trust, where she and her spouse are trustees and beneficiaries. She disclaims ownership except to the extent of her pecuniary interest.

Stakeholder Impact

• Shareholders: May observe the insider sale, but the 10b5-1 plan should temper concerns about management's confidence. The transaction value is not significant enough to materially impact the company's capital structure or market liquidity.
• Employees: No direct impact on employees is indicated by this filing.
• Customers/Suppliers/Creditors: No direct impact on these stakeholders is indicated by this filing.

Key Dates

Recommendation

This Form 4 reports a routine, pre-scheduled insider sale under a Rule 10b5-1 plan. Such transactions are typically for personal financial planning and do not usually signal a change in the company's fundamental outlook or warrant a strong buy or sell recommendation. Investors should monitor broader company performance and market conditions rather than reacting solely to this planned insider disposition.

Keywords

Mirion Technologies, MIR, Insider Trading, Form 4, Stock Sale, Emmanuelle Lee, Chief Legal Officer, 10b5-1 Plan