Thomas D. Logan - 01 Mar 2026 Form 4 Insider Report for Mirion Technologies, Inc. (MIR)

Role: Chief Executive Officer, Director
Signature: /s/ Emmanuelle Lee, attorney-in-fact for Thomas D. Logan
Issuer symbol: MIR
Transactions as of: 01 Mar 2026
Net transactions value: -$3,194,693
Form type: 4
Filing time: 03 Mar 2026, 16:12:04 UTC
Previous filing: 29 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Logan Thomas D	Chief Executive Officer, Director	1218 MENLO DRIVE, ATLANTA	/s/ Emmanuelle Lee, attorney-in-fact for Thomas D. Logan	03 Mar 2026	0001486259

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MIR	Class A Common Stock	Tax liability	$446,246	-20,650	-0.62%	$21.61	3,289,038	01 Mar 2026	Direct	F1
transaction	MIR	Class A Common Stock	Award	$0	+318,632	+9.7%	$0.000000	3,607,670	02 Mar 2026	Direct	F2
transaction	MIR	Class A Common Stock	Tax liability	$2,748,446	-127,184	-3.5%	$21.61	3,480,486	02 Mar 2026	Direct	F3
transaction	MIR	Class A Common Stock	Gift	$0	-3,093,812	-89%	$0.000000	386,674	02 Mar 2026	Direct	F4
holding	MIR	Class A Common Stock						3,205,378	01 Mar 2026	Logan Family Trust

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares that have been withheld by the Issuer in satisfaction of tax withholding obligations in connection with the vesting of restricted stock units (RSUs) previously granted to the Reporting Person. Such withholding was mandated by the Issuer by a policy adopted in advance and does not represent a discretionary trade by the Reporting Person.
F2	Represents the settlement of certain performance-based restricted stock units ("PSU") previously granted on December 31, 2023, based on the achievement of specified performance goals as determined by the Issuer's compensation committee of its board of directors.
F3	Represents shares that have been withheld by the Issuer in satisfaction of tax withholding obligations in connection with the vesting of the PSUs previously granted to the Reporting Person. Such withholding was mandated by the Issuer by a policy adopted in advance and does not represent a discretionary trade by the Reporting Person.
F4	On March 2, 2026, the Reporting Person made a gift of 3,093,812 shares of Class A Common Stock to the Logan Family Trust. The Reporting Person received no consideration for the gift.