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, Q4 2022
Institutional positions in Mirion Technologies, Inc. as of Dec 31, 2022. 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
- 119
- −1 vs. Q3 2022
- Shares held
- 153.3M
- −17.3M (−10.2%) vs. Q3 2022
- Total value
- $1.01B
- −$261.5M (−20.5%) vs. Q3 2022
- New holders
- 20
- 39 more added
- Sold out
- 21
- 43 more reduced
1 institution that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2022: 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, Q4 2022
Shares, value and share of portfolio for each institution holding Mirion Technologies, Inc.; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Schwartz Investment Counsel Inc | 1,490,000 | $9.85M | 0.45% | 00.0% | Unchanged |
| Crestline Management, LP | 1,500,010 | $9.92M | 1.45% | +376,153+33.5% | Added |
| Senator Investment Group LP | 1,650,000 | $10.9M | 0.98% | −600,000−26.7% | Reduced |
| First Manhattan Co | 1,920,114 | $12.7M | 0.05% | −192,620−9.1% | Reduced |
| ArrowMark Colorado Holdings LLC | 2,361,231 | $15.6M | 0.19% | +78,817+3.5% | Added |
| Geode Capital Management, LLC | 2,384,265 | $15.8M | 0.00% | +95,637+4.2% | Added |
| Corsair Capital Management, L.P. | 2,711,141 | $17.9M | 6.76% | −556,300−17.0% | Reduced |
| Kohlberg Kravis Roberts & Co. L.P. | 3,229,175 | $21.3M | 0.72% | +3,229,175 | New |
| State Street Corp | 3,593,901 | $23.8M | 0.00% | −81,147−2.2% | Reduced |
| Nomura Holdings Inc | 5,225,050 | $34.5M | 0.35% | +5,225,050 | New |
| P2 Capital Partners, LLC | 5,526,935 | $36.5M | 4.83% | +1,398,510+33.9% | Added |
| Cooperman Leon G | 6,366,073 | $42.1M | 2.62% | +1,162,753+22.3% | Added |
| Alyeska Investment Group, L.P. | 7,748,035 | $51.2M | 0.53% | −4,950,463−39.0% | Reduced |
| Swedbank AB | 9,262,400 | $61.2M | 0.13% | +287,898+3.2% | Added |
| FMR LLC | 9,289,319 | $61.4M | 0.01% | +503,372+5.7% | Added |
| BlackRock Inc. | 10,439,033 | $69.0M | 0.00% | +548,037+5.5% | Added |
| Janus Henderson Group PLC | 11,696,294 | $77.3M | 0.06% | −64,321−0.5% | Reduced |
| Vanguard Group Inc | 12,577,497 | $83.1M | 0.00% | +86,550+0.7% | Added |
| Goldman Sachs Group Inc | 34,793,322 | $230.0M | 0.07% | −16,969,764−32.8% | Reduced |
| Locust Wood Capital Advisers, LLC | 0 | $0 | 0.00% | −4,652,012−100.0% | Sold out |
| Roubaix Capital, LLC | 0 | $0 | 0.00% | −505,293−100.0% | Sold out |
| Invenomic Capital Management LP | 0 | $0 | 0.00% | −328,310−100.0% | Sold out |
| Advisory Research Inc | 0 | $0 | 0.00% | −229,105−100.0% | Sold out |
| Resolute Capital Asset Partners LLC | 0 | $0 | 0.00% | −201,176−100.0% | Sold out |
| MYDA Advisors LLC | 0 | $0 | 0.00% | −160,000−100.0% | Sold out |
| Alpha Paradigm Partners, LLC | 0 | $0 | 0.00% | −125,999−100.0% | Sold out |
| Weiss Multi-Strategy Advisers LLC | 0 | $0 | 0.00% | −109,225−100.0% | Sold out |
| BNP Paribas Arbitrage, SA | 0 | $0 | 0.00% | −68,285−100.0% | Sold out |
| Old Well Partners, LLC | 0 | $0 | 0.00% | −36,231−100.0% | Sold out |
| Ensign Peak Advisors, Inc | 0 | $0 | 0.00% | −17,040−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −16,349−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −15,104−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −13,755−100.0% | Sold out |
| Neuberger Berman Group LLC | 0 | $0 | 0.00% | −13,025−100.0% | Sold out |
| Punch & Associates Investment Management, Inc. | 0 | $0 | 0.00% | −11,700−100.0% | Sold out |
| Mariner, LLC | 0 | $0 | 0.00% | −10,669−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −3,268−100.0% | Sold out |
| Howe & Rusling Inc | 0 | $0 | 0.00% | −345−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −310−100.0% | Sold out |
| Nisa Investment Advisors, LLC | 0 | $0 | 0.00% | −103−100.0% | Sold out |
| FourThought Financial, LLC | – | – | – | – | Not filed |