Mirion Technologies's three largest insider shareholders as of July 24, 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).
| 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.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 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 | 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 |
| 01 Apr, 2026 | Brian Schopfer | Class A Common Stock | D | 7,377 | $18.59 | 913,290 | D | F |
| 01 Apr, 2026 | Alison Ulrich | Class A Common Stock | D | 2,053 | $18.59 | 36,235 | D | F |
| 01 Apr, 2026 | Thomas D Logan | Class A Common Stock | D | 22,614 | $18.59 | 364,060 | D | F |
| 01 Apr, 2026 | Brian Schopfer | Class A Common Stock | D | 7,377 | $18.59 | 913,290 | D | F |
| 01 Apr, 2026 | Alison Ulrich | Class A Common Stock | D | 2,053 | $18.59 | 36,235 | D | F |
| 01 Mar, 2026 | Brian Schopfer | Class A Common Stock | D | 9,172 | $21.61 | 884,260 | D | F |
| 02 Mar, 2026 | Loic Eloy | Class A Common Stock | A | 15,577 | $0.00 | 113,347 | D | A |
| 01 Mar, 2026 | Christopher A. Moore | Class A Common Stock | A | 5,552 | $0.00 | 33,857 | D | A |
| 01 Mar, 2026 | Emmanuelle Lee | Class A Common Stock | A | 11,568 | $0.00 | 90,295 | D | A |
| 01 Mar, 2026 | Alison Ulrich | Class A Common Stock | A | 5,552 | $0.00 | 40,648 | D | A |
| 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 | Alison Ulrich | Class A Common Stock | A | 5,552 | $0.00 | 40,648 | D | A |