Mirion Technologies director acquires 1,333 shares

The reported position also includes shares attributed to Kingsley's two 2026 GRATs and Lawrence D. Kingsley Revocable Trust.

Rhea-AI Filing Summary

Mirion Technologies, Inc. director Lawrence D. Kingsley acquired 1,333 Class A common shares on September 30, 2026, at a reported $14.34 per share. The shares were issued as vested shares under his election to receive his quarterly director retainer in shares rather than cash. Afterward, he reported 73,858 shares directly, plus 159,000 shares in each of his two 2026 GRATs and 3,191,075 shares through his revocable trust.

Insider Trade Summary

Grant/Award: 1,333 shares

Grant/Award 4 txns

Insider Kingsley Lawrence D

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock F1	1,333	$14.34	$19K
holding	Class A Common Stock	--	--	--
holding	Class A Common Stock	--	--	--
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class A Common Stock — 73,858 shares (Direct); Class A Common Stock — 159,000 shares (Indirect, Lawrence D. Kingsley 2026 GRAT I); Class A Common Stock — 3,191,075 shares (Indirect, By Lawrence D. Kingsley Revocable Trust); Class A Common Stock — 159,000 shares (Indirect, Lawrence D. Kingsley 2026 GRAT II)

Footnotes (1)

1. F1. These shares were issued in connection with the Reporting Person's election to receive his or her quarterly retainer for director services in the form of vested shares rather than cash.

Key Figures

Shares acquired: 1,333 shares Reported price per share: $14.34 per share Direct shares following transaction: 73,858 shares +3 more

6 metrics

Shares acquired 1,333 shares September 30, 2026

Reported price per share $14.34 per share Shares acquired September 30, 2026

Direct shares following transaction 73,858 shares September 30, 2026

Shares in Lawrence D. Kingsley 2026 GRAT I 159,000 shares September 30, 2026

Shares in Lawrence D. Kingsley 2026 GRAT II 159,000 shares September 30, 2026

Shares by Lawrence D. Kingsley Revocable Trust 3,191,075 shares September 30, 2026

Key Terms

vested shares, quarterly retainer, GRAT

3 terms

vested shares financial

"receive his or her quarterly retainer ... in the form of vested shares"

quarterly retainer financial

"receive his or her quarterly retainer for director services"

GRAT financial

"Lawrence D. Kingsley 2026 GRAT I"

FAQ

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How many MIR shares did Lawrence D. Kingsley acquire?

Lawrence D. Kingsley acquired 1,333 Class A common shares on September 30, 2026, at a reported $14.34 per share. The shares were issued as vested shares for his election to receive his quarterly director retainer in shares rather than cash.

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

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 09/30/2026 - 04:17 PM Accepted by SEC EDGAR 09/30/2026 - 04:16 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^*

Kingsley Lawrence D

(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)
09/30/2026

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	09/30/2026		A		1,333(1)	A	$14.34	73,858	D
Class A Common Stock								159,000	I	Lawrence D. Kingsley 2026 GRAT I
Class A Common Stock								3,191,075	I	By Lawrence D. Kingsley Revocable Trust
Class A Common Stock								159,000	I	Lawrence D. Kingsley 2026 GRAT II

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. These shares were issued in connection with the Reporting Person's election to receive his or her quarterly retainer for director services in the form of vested shares rather than cash.

Remarks:

	/s/ Emmanuelle Lee, attorney-in-fact for Lawrence Kingsley	09/30/2026
	** 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)