Mirion Technologies, Inc. (MIR) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for MIR. 13F holdings as of 2026-03-31.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 37,857,697 | $704M | DECREASED |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 17,905,722 | $333M | NEW |
| T. Rowe Price Investment Management, Inc. | 14,627,795 | $272M | DECREASED |
| VANGUARD CAPITAL MANAGEMENT LLC | 10,505,195 | $195M | NEW |
| STATE STREET CORP | 9,430,017 | $175M | INCREASED |
Recent Insider Trades
| Insider | Type | Shares | Value | Date |
|---|---|---|---|---|
| Sheila Rege (Director) | AWARD | 7,383 | 2026-05-13 | |
| Jody Markopoulos (Director) | AWARD | 7,383 | 2026-05-13 | |
| John W Kuo (Director) | AWARD | 7,383 | 2026-05-13 | |
| Steven W. Etzel (Director) | AWARD | 7,383 | 2026-05-13 | |
| Robert Cascella (Director) | AWARD | 7,383 | 2026-05-13 |
Full institutional holdings, insider history, and congressional trades for Mirion Technologies, Inc. on SentiSense.