Mirion Technologies, Inc. (MIR) Insider Ownership

Historic Insider Ownership Trends

MIR's three largest insider shareholders as of June 02, 2026 are Sponsor Ii Llc Gs (TenPercentOwner, 17.79Mn shares), General Partners (Ix) Ltd Charterhouse (Other, 14.96Mn shares), Lawrence D Kingsley (Director, 3.51Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Robert Cascella - 53,418 0 16 May, 2025
Lawrence D Kingsley - 0 3,509,075 12 Dec, 2025
John W Kuo - 72,736 0 12 Dec, 2025
Steven W. Etzel - 80,065 0 16 May, 2025
Thomas D Logan Chief Executive Officer 0 2,551,371 28 Oct, 2024
Kenneth Bockhorst - 69,875 0 12 Dec, 2025
Sponsor Ii Llc Gs - 17,793,000 0 06 Jun, 2024
Jody Markopoulos - 74,126 0 01 Jul, 2025
Michael Freed Chief Operating Officer 935,818 0 22 Oct, 2021
Brian Schopfer Chief Financial Officer 913,290 0 02 Apr, 2026
General Partners (Ix) Ltd Charterhouse - 0 14,960,702 08 Mar, 2023
Loic Eloy Industrial Group President 203,077 0 05 Apr, 2022
Christopher A. Moore Chief Accounting Officer (Pao) 30,557 0 02 Apr, 2026
Sheila Rege - 42,494 0 16 May, 2025
Michael J Rossi Medical Group President 116,173 0 03 Nov, 2023
Alison Ulrich Chief Human Resources Officer 36,235 0 02 Apr, 2026
Emmanuelle Lee Chief Legal Officer 82,431 0 02 Apr, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
01 Apr, 2026 Brian Schopfer Class A Common Stock D 7,377 $18.59 913,290 D F
01 Apr, 2026 Christopher A. Moore Class A Common Stock D 1,903 $18.59 30,557 D F
01 Apr, 2026 Christopher A. Moore Class A Common Stock D 1,903 $18.59 30,557 D F
31 Mar, 2026 Lawrence D Kingsley Class A Common Stock A 1,104 $17.32 64,047 D A
01 Apr, 2026 Alison Ulrich Class A Common Stock D 2,053 $18.59 36,235 D F
01 Apr, 2026 Brian Schopfer Class A Common Stock D 7,377 $18.59 913,290 D F
01 Apr, 2026 Emmanuelle Lee Class A Common Stock D 4,680 $18.59 82,431 D F
01 Apr, 2026 Thomas D Logan Class A Common Stock D 22,614 $18.59 364,060 D F
01 Apr, 2026 Alison Ulrich Class A Common Stock D 2,053 $18.59 36,235 D F
01 Mar, 2026 Christopher A. Moore Class A Common Stock A 5,552 $0.00 33,857 D A
01 Mar, 2026 Alison Ulrich Class A Common Stock A 5,552 $0.00 40,648 D A
01 Mar, 2026 Alison Ulrich Class A Common Stock A 5,552 $0.00 40,648 D A
01 Mar, 2026 Emmanuelle Lee Class A Common Stock A 11,568 $0.00 90,295 D A
01 Mar, 2026 Brian Schopfer Class A Common Stock D 9,172 $21.61 884,260 D F
01 Mar, 2026 Brian Schopfer Class A Common Stock D 9,172 $21.61 884,260 D F
01 Mar, 2026 Christopher A. Moore Class A Common Stock A 5,552 $0.00 33,857 D A
01 Mar, 2026 Thomas D Logan Class A Common Stock D 20,650 $21.61 3,289,038 D F
02 Mar, 2026 Loic Eloy Class A Common Stock A 15,577 $0.00 113,347 D A
01 Mar, 2026 Emmanuelle Lee Class A Common Stock D 3,184 $21.61 87,111 D F
01 Mar, 2026 Alison Ulrich Class A Common Stock D 2,360 $21.61 38,288 D F