🕵️ Mirion Technologies, Inc. ($MIR)
SEC insider & ownership activity, last 12 months · CIK 1809987 · every row links its SEC filing
Over the last 12 months insiders sold $20.3M against $312K of open-market buying. Lawrence D. Kingsley sold $15.8M in discretionary trades (Nov–Dec). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $312K (1 lots) · 5 sellers, $20.3M (7 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Lawrence D. Kingsley | 0 | – | 2 | $15.8M | Dec 10, 2025 |
| Schopfer Brian | 1 | $312K | 2 | $2.8M | Sep 2, 2026 |
| Loic Eloy | 0 | – | 1 | $1.2M | Nov 11, 2025 |
| Emmanuelle Lee | 0 | – | 1 | $343K | Nov 10, 2025 |
| Christopher Moore | 0 | – | 1 | $165K | May 7, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| BlackRock, Inc. | 14.8% | 13G | Oct 2, 2025 | filing ↗ | |
| Vanguard Portfolio Management | 7.4% | 13G | Apr 29, 2026 | filing ↗ | |
| T. ROWE Price Investment Management, Inc. | 6.1% | 13G | Feb 17, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.0% | 13G | Apr 30, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Christopher Moore | $165K | May 7, 2026 | filing ↗ |
| Lawrence D Kingsley Revocable Trust (trustee) | $8.8M | Dec 10, 2025 | filing ↗ |
| Lawrence D Kingsley Revocable Trust (trustee) | $7.1M | Nov 21, 2025 | filing ↗ |
| Emmanuelle Lee | $343K | Nov 10, 2025 | filing ↗ |
| Schopfer Brian | $2.8M | Nov 6, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Other events (8.01) | Aug 31, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 31, 2026 | filing ↗ |
| Earnings (2.02) | Jul 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 28, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jul 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 2, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 13, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 13, 2026 | filing ↗ |
| Earnings (2.02) | Apr 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 28, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 9, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 9, 2026 | filing ↗ |
| Earnings (2.02) | Feb 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 10, 2026 | filing ↗ |
| Material agreement (1.01) | Dec 8, 2025 | filing ↗ |
| New financial obligation (2.03) | Dec 8, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 8, 2025 | filing ↗ |
| Other events (8.01) | Dec 1, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 1, 2025 | filing ↗ |
| Other events (8.01) | Nov 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 6, 2025 | filing ↗ |
| Earnings (2.02) | Oct 28, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 28, 2025 | filing ↗ |
| Material agreement (1.01) | Sep 25, 2025 | filing ↗ |
| New financial obligation (2.03) | Sep 25, 2025 | filing ↗ |
| Unregistered equity sale (3.02) | Sep 25, 2025 | filing ↗ |
| Other events (8.01) | Sep 25, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 25, 2025 | filing ↗ |
| Other events (8.01) | Sep 24, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 24, 2025 | filing ↗ |