Mirion director granted 7,383-share stock award

Mirion Technologies director Steven W. Etzel reported an equity grant of 7,383 shares of Class A Common Stock in the form of restricted stock units.

Rhea-AI Filing Summary

Mirion Technologies director Steven W. Etzel reported an equity grant of 7,383 shares of Class A Common Stock in the form of restricted stock units. The award carries no cash exercise price.

These restricted stock units vest on the earlier of the first anniversary of the grant date or the date of the next annual stockholder meeting, conditioned on his continued service as a non-employee director. After this grant, Etzel directly holds 87,448 shares of Mirion Class A Common Stock, so the award modestly increases his existing ownership stake.

Insider Trade Summary

Grant/Award: 7,383 shares

Grant/Award 1 txn

Insider Etzel Steven W.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock	7,383	$0.00	$0.00

Holdings After Transaction: Class A Common Stock — 87,448 shares (Direct)

Footnotes (1)

1. F1. Represents restricted stock units that will vest on the earlier to occur of (i) first anniversary of the grant date or (ii) date of the annual stockholder meeting following the grant date, subject to the non-employee director's continued service on the Board through such vesting date.

Key Figures

RSU grant size: 7,383 shares Post-transaction holdings: 87,448 shares Transaction code: A (grant, award, or other acquisition) +1 more

4 metrics

RSU grant size 7,383 shares Restricted stock units awarded to Steven W. Etzel

Post-transaction holdings 87,448 shares Class A Common Stock directly held after grant

Transaction code A (grant, award, or other acquisition) Non-derivative acquisition of Class A Common Stock

Price per share $0.0000 per share Indicates compensation award, not a cash purchase

Key Terms

restricted stock units, annual stockholder meeting, non-employee director, Grant, award, or other acquisition

4 terms

restricted stock units financial

"Represents restricted stock units that will vest on the earlier to occur of"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

annual stockholder meeting financial

"or (ii) date of the annual stockholder meeting following the grant date"

An annual stockholder meeting is a yearly gathering where a company's owners (shareholders) receive updates on performance, vote on key issues like board members, executive pay and major corporate plans, and ask questions of management. Think of it as a company town hall where choices about oversight and direction are decided; outcomes can affect management accountability, corporate strategy and ultimately the value and risks of investors’ shares.

non-employee director financial

"subject to the non-employee director's continued service on the Board"

Grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Mirion (MIR) director Steven W. Etzel report?

Steven W. Etzel reported receiving 7,383 shares of Mirion Class A Common Stock as a stock-based award. The shares are structured as restricted stock units rather than an open-market purchase, reflecting routine non-employee director compensation granted at no cash cost per share.

How many Mirion (MIR) shares does Steven W. Etzel hold after this Form 4 grant?

Following the grant, Steven W. Etzel directly holds 87,448 shares of Mirion Class A Common Stock. This total includes the newly awarded 7,383 restricted stock units, which will convert into shares once vested under the specified service-based vesting conditions tied to his board role.

What are the vesting terms of Steven W. Etzel’s 7,383 Mirion (MIR) restricted stock units?

The 7,383 restricted stock units vest on the earlier of the first anniversary of the grant date or the next annual stockholder meeting. Vesting is subject to Etzel’s continued service as a non-employee director on Mirion’s board through the applicable vesting date specified in the award’s terms.

Was Steven W. Etzel’s Mirion (MIR) Form 4 transaction an open-market stock purchase?

No, the Form 4 shows a grant coded as “A,” meaning an award or other acquisition, not an open-market purchase. Etzel did not pay a price per share; he received 7,383 restricted stock units as part of his non-employee director compensation package.

Does the Form 4 for Mirion (MIR) indicate any stock sales by Steven W. Etzel?

The reported activity reflects only an acquisition of 7,383 restricted stock units and shows no stock sales. Transaction summaries list one acquisition transaction, zero dispositions, and no derivative exercises, gifts, tax withholding events, or restructuring-related transfers in this particular filing.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/14/2026 - 04:07 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Etzel Steven W.

(Last) (First) (Middle)

1218 MENLO DRIVE

(Street)

ATLANTA GEORGIA 30318

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Mirion Technologies, Inc. [ MIR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/13/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	05/13/2026		A		7,383(1)	A	$0	87,448	D

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

Explanation of Responses:

1. Represents restricted stock units that will vest on the earlier to occur of (i) first anniversary of the grant date or (ii) date of the annual stockholder meeting following the grant date, subject to the non-employee director's continued service on the Board through such vesting date.

Remarks:

	/s/ Emmanuelle Lee, attorney-in-fact for Steven Etzel	05/14/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)