Mirion Technologies, Inc. (MIR) ownership: Top institutional holder: VANGUARD GROUP INC ($710.71M). Insider activity: Net Seller (6 buys, 14 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| VANGUARD GROUP INC | 30346328.00 | $710.71M | 2025-12-31 |
| BlackRock, Inc. | 37857697.00 | $703.77M | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 17905722.00 | $332.87M | 2026-03-31 |
| T. Rowe Price Investment Management, Inc. | 14627795.00 | $271.93M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 10505195.00 | $195.29M | 2026-03-31 |
| STATE STREET CORP | 9430017.00 | $175.30M | 2026-03-31 |
| COOPERMAN LEON G | 8383441.00 | $155.85M | 2026-03-31 |
| GOLDMAN SACHS GROUP INC | 7349668.00 | $136.63M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-07 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.