Mirion Technologies, Inc.
MIR- Exchange
- NYSE
- Industry
- Measuring & Controlling Devices, NEC
- SEC CIK
- 0001809987
In the last 90 days, Mirion Technologies, Inc. insiders filed 1 open-market purchase and 0 sales; 351 institutions reported holding it in 13F filings for Q2 2026, worth $4.70B in total; Maverick Capital is the only superinvestor holding it.
13F holders, Q2 2026
Institutional positions in Mirion Technologies, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 351
- −6 vs. Q1 2026
- Shares held
- 262.0M
- +12.6M (+5.0%) vs. Q1 2026
- Total value
- $4.70B
- +$56.2M (+1.2%) vs. Q1 2026
- New holders
- 59
- 138 more added
- Sold out
- 65
- 117 more reduced
5 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MIR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 351 | $4.70B |
| Q1 2026 | 362 | $4.71B |
| Q4 2025 | 365 | $5.91B |
| Q3 2025 | 343 | $5.93B |
| Q2 2025 | 302 | $4.46B |
| Q1 2025 | 230 | $2.69B |
| Q4 2024 | 224 | $3.38B |
| Q3 2024 | 176 | $2.27B |
| Q2 2024 | 155 | $2.12B |
| Q1 2024 | 143 | $2.14B |
| Q4 2023 | 125 | $1.93B |
| Q3 2023 | 127 | $1.40B |
| Q2 2023 | 124 | $1.53B |
| Q1 2023 | 117 | $1.45B |
| Q4 2022 | 119 | $1.01B |
| Q3 2022 | 121 | $1.27B |
| Q2 2022 | 115 | $921.8M |
| Q1 2022 | 108 | $1.20B |
| Q4 2021 | 93 | $1.52B |
| Q3 2021 | 4 | $16.4M |
| Q2 2021 | 1 | $20.8K |
| Q1 2021 | 0 | $0 |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Mirion Technologies, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Cullen/Frost Bankers, Inc. | 0 | $0 | 0.00% | −838−100.0% | Sold out |
| Raleigh Capital Management Inc. | 0 | $0 | 0.00% | −798−100.0% | Sold out |
| Transamerica Financial Advisors, Inc. | 0 | $0 | 0.00% | −659−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −615−100.0% | Sold out |
| Golden State Equity Partners | 0 | $0 | 0.00% | −510−100.0% | Sold out |
| Harbour Investments, Inc. | 0 | $0 | 0.00% | −486−100.0% | Sold out |
| CoreCap Advisors, LLC | 0 | $0 | 0.00% | −356−100.0% | Sold out |
| Private Trust Co NA | 0 | $0 | 0.00% | −201−100.0% | Sold out |
| Whittier Trust Co | 0 | $0 | 0.00% | −195−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −122−100.0% | Sold out |
| Richardson Capital Management LLC | 0 | $0 | 0.00% | −89−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −74−100.0% | Sold out |
| Massmutual Trust Co FSB | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Vermillion Wealth Management, Inc. | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Dunhill Financial, LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Hughes Financial Services, LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Janus Henderson Group PLC | – | – | – | – | Not filed |
| Gibbs Wealth Management | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |
| Sunbelt Securities, Inc. | – | – | – | – | Not filed |
| Anfield Capital Management, LLC | – | – | – | – | Not filed |