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 2025
Institutional positions in Mirion Technologies, Inc. as of Jun 30, 2025. 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
- 302
- +73 vs. Q1 2025
- Shares held
- 207.4M
- +22.0M (+11.9%) vs. Q1 2025
- Total value
- $4.46B
- +$1.78B (+66.0%) vs. Q1 2025
- New holders
- 103
- 115 more added
- Sold out
- 30
- 62 more reduced
1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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 2025
Shares, value and share of portfolio for each institution holding Mirion Technologies, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Lazard Asset Management LLC | 218,031 | $4.69M | 0.01% | +26,276+13.7% | Added |
| EAM Investors, LLC | 208,974 | $4.50M | 0.68% | +208,974 | New |
| California State Teachers Retirement System | 203,402 | $4.38M | 0.00% | +25,999+14.7% | Added |
| Candelo Capital Management LP | 203,161 | $4.37M | 4.19% | +203,161 | New |
| First Trust Advisors LP | 190,035 | $4.09M | 0.00% | −127,372−40.1% | Reduced |
| Exchange Traded Concepts, LLC | 181,473 | $3.91M | 0.05% | +47,468+35.4% | Added |
| Arosa Capital Management LP | 180,273 | $3.88M | 2.83% | −687,988−79.2% | Reduced |
| Price T Rowe Associates Inc | 169,145 | $3.64M | 0.00% | +19,015+12.7% | Added |
| Balyasny Asset Management LLC | 167,245 | $3.60M | 0.01% | +3,213+2.0% | Added |
| Roubaix Capital, LLC | 166,347 | $3.58M | 1.72% | −212,751−56.1% | Reduced |
| Jain Global LLC | 162,968 | $3.51M | 0.05% | +162,968 | New |
| State of Wisconsin Investment Board | 153,774 | $3.31M | 0.01% | +42,511+38.2% | Added |
| Legato Capital Management LLC | 150,639 | $3.24M | 0.39% | +14,514+10.7% | Added |
| SummitTX Capital, L.P. | 150,000 | $3.23M | 0.14% | +150,000 | New |
| BNP Paribas Arbitrage, SA | 148,395 | $3.19M | 0.00% | +134,948+1,003.6% | Added |
| Nomura Holdings Inc | 141,946 | $3.06M | 0.02% | +141,946 | New |
| Pathstone Holdings, LLC | 138,600 | $2.98M | 0.01% | +38,919+39.0% | Added |
| New York State Common Retirement Fund | 133,181 | $2.87M | 0.00% | +16,153+13.8% | Added |
| Neo Ivy Capital Management | 132,188 | $2.85M | 0.91% | +132,188 | New |
| Intech Investment Management LLC | 127,952 | $2.75M | 0.03% | 00.0% | Unchanged |
| MetLife Investment Management | 125,535 | $2.70M | 0.02% | +2,852+2.3% | Added |
| Munro Partners | 121,875 | $2.62M | 0.08% | +121,875 | New |
| Simplex Trading, LLC | 118,949 | $2.56M | 0.07% | +87,579+279.2% | Added |
| Renaissance Technologies LLC | 115,900 | $2.50M | 0.00% | −527,800−82.0% | Reduced |
| Principal Financial Group Inc | 115,358 | $2.48M | 0.00% | +101,301+720.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 115,332 | $2.48M | 0.00% | −7,630−6.2% | Reduced |
| Manufacturers Life Insurance Company, The | 111,723 | $2.41M | 0.00% | −5,722−4.9% | Reduced |
| Polar Asset Management Partners Inc. | 107,498 | $2.31M | 0.06% | +107,498 | New |
| State of New Jersey Common Pension Fund D | 105,811 | $2.28M | 0.01% | −20,876−16.5% | Reduced |
| TT International Asset Management LTD | 105,551 | $2.27M | 0.46% | +43,205+69.3% | Added |
| Creative Planning | 104,996 | $2.26M | 0.00% | +47,648+83.1% | Added |
| Capstone Investment Advisors, LLC | 104,350 | $2.25M | 0.02% | +104,350 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 102,225 | $2.20M | 0.01% | +102,225 | New |
| Centiva Capital, LP | 96,267 | $2.07M | 0.14% | +96,267 | New |
| Boothbay Fund Management, LLC | 95,790 | $2.06M | 0.06% | +95,790 | New |
| Susquehanna Advisors Group, Inc. | 91,689 | $1.97M | 0.08% | +91,689 | New |
| Wolverine Asset Management LLC | 89,452 | $1.93M | 0.03% | +41,452+86.4% | Added |
| Sandler Capital Management | 89,356 | $1.92M | 0.67% | −92,431−50.8% | Reduced |
| Aristeia Capital LLC | 86,002 | $1.85M | 0.05% | +86,002 | New |
| Sterling Capital Management LLC | 82,245 | $1.77M | 0.03% | −2,620−3.1% | Reduced |
| Walleye Capital LLC | 81,997 | $1.77M | 0.02% | −204,323−71.4% | Reduced |
| Daiwa Securities Group Inc. | 75,700 | $1.63M | 0.01% | +75,700 | New |
| SG Americas Securities, LLC | 75,406 | $1.62M | 0.01% | +56,385+296.4% | Added |
| Jackson Creek Investment Advisors LLC | 74,000 | $1.59M | 0.43% | +74,000 | New |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 71,700 | $1.54M | 0.03% | +71,700 | New |
| Y-Intercept (Hong Kong) Ltd | 71,014 | $1.53M | 0.04% | +71,014 | New |
| Weiss Asset Management LP | 66,910 | $1.44M | 0.02% | +66,910 | New |
| Bank of Montreal | 65,640 | $1.41M | 0.00% | +65,640 | New |
| Sumitomo Life Insurance Co | 64,495 | $1.39M | 0.09% | +41,819+184.4% | Added |
| Register Financial Advisors LLC | 63,800 | $1.37M | 0.60% | +34,500+117.7% | Added |
| Arizona State Retirement System | 62,433 | $1.34M | 0.01% | +4,219+7.2% | Added |
| STRS Ohio | 62,100 | $1.34M | 0.00% | +42,800+221.8% | Added |
| Handelsbanken Fonder AB | 61,031 | $1.31M | 0.00% | 00.0% | Unchanged |
| Corient IA LLC | 60,000 | $1.29M | 0.76% | +50,000+500.0% | Added |
| FORA Capital, LLC | 58,903 | $1.27M | 0.14% | +58,903 | New |
| Voya Investment Management LLC | 57,472 | $1.24M | 0.00% | +1,634+2.9% | Added |
| Mariner, LLC | 57,454 | $1.24M | 0.00% | +1,276+2.3% | Added |
| Highbridge Capital Management LLC | 57,352 | $1.23M | 0.06% | +57,352 | New |
| Steelhead Partners LLC | 57,352 | $1.23M | 0.06% | +57,352 | New |
| Polen Capital Management LLC | 57,230 | $1.23M | 0.00% | +57,230 | New |
| State Board of Administration of Florida Retirement System | 57,210 | $1.23M | 0.00% | 00.0% | Unchanged |
| Blackhawk Capital Partners LLC. | 52,893 | $1.14M | 0.53% | +52,893 | New |
| Ci Investments Inc. | 52,865 | $1.14M | 0.00% | +52,865 | New |
| Police & Firemen's Retirement System of New Jersey | 47,951 | $1.03M | 0.01% | +3,843+8.7% | Added |
| LPL Financial LLC | 45,170 | $972.5K | 0.00% | −3,648−7.5% | Reduced |
| KLP Kapitalforvaltning AS | 44,400 | $955.9K | 0.00% | +6,900+18.4% | Added |
| Calamos Advisors LLC | 44,400 | $955.9K | 0.00% | +44,400 | New |
| Groupama Asset Managment | – | $932.4K | 0.02% | – | New |
| ProShare Advisors LLC | 43,091 | $927.7K | 0.00% | −1,630−3.6% | Reduced |
| HBK Investments L P | 42,998 | $925.7K | 0.02% | +42,998 | New |
| Tenor Capital Management Co., L.P. | 42,998 | $925.7K | 0.01% | +42,998 | New |
| Cresset Asset Management, LLC | 42,500 | $915.0K | 0.00% | −16,000−27.4% | Reduced |
| Tower Research Capital LLC (TRC) | 39,878 | $858.6K | 0.02% | +34,292+613.9% | Added |
| Twin Tree Management, LP | 39,581 | $852.2K | 0.02% | +39,581 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 38,387 | $826.5K | 0.00% | 00.0% | Unchanged |
| Options Solutions, LLC | 38,191 | $822.3K | 0.29% | +12,257+47.3% | Added |
| Ieq Capital, LLC | 38,083 | $819.9K | 0.01% | +23,164+155.3% | Added |
| Vontobel Holding Ltd. | 37,539 | $808.2K | 0.00% | −22,356−37.3% | Reduced |
| Pictet Asset Management Holding SA | 34,784 | $749.4K | 0.00% | −226−0.6% | Reduced |
| Brevan Howard Capital Management LP | 32,925 | $708.9K | 0.01% | +32,925 | New |
| Teacher Retirement System of Texas | 32,341 | $696.3K | 0.00% | +2,776+9.4% | Added |
| Truist Financial Corp | 32,167 | $692.6K | 0.00% | +16,484+105.1% | Added |
| Oppenheimer & Co Inc | 31,512 | $678.5K | 0.01% | −1,803−5.4% | Reduced |
| Sanctuary Advisors, LLC | 30,451 | $655.6K | 0.00% | +12,108+66.0% | Added |
| Jefferies Financial Group Inc. | 30,000 | $645.9K | 0.01% | −26,300−46.7% | Reduced |
| Two Sigma Investments, LP | 28,650 | $616.8K | 0.00% | +28,650 | New |
| Public Employees Retirement Association of Colorado | 28,338 | $610.0K | 0.00% | +28,338 | New |
| CSS LLC | 28,070 | $604.3K | 0.04% | +28,070 | New |
| Prudential Financial Inc | 27,010 | $581.5K | 0.00% | +11,065+69.4% | Added |
| Axq Capital, LP | 26,654 | $573.9K | 0.19% | +26,654 | New |
| CIBC World Markets Corp | 25,892 | $557.5K | 0.00% | −19,946−43.5% | Reduced |
| Graham Capital Management, L.P. | 25,000 | $538.3K | 0.02% | −30,154−54.7% | Reduced |
| Mackenzie Financial Corp | 24,572 | $529.0K | 0.00% | +2,094+9.3% | Added |
| Simon Quick Advisors, LLC | 23,879 | $514.1K | 0.03% | −826−3.3% | Reduced |
| Janney Montgomery Scott LLC | 22,439 | $483.0K | 0.00% | +22,439 | New |
| Ameritas Investment Partners, Inc. | 21,455 | $461.9K | 0.01% | +557+2.7% | Added |
| Toroso Investments, LLC | 21,274 | $458.0K | 0.00% | +4,057+23.6% | Added |
| HSBC Holdings PLC | 20,426 | $442.8K | 0.00% | −3,539−14.8% | Reduced |
| Cookson Peirce & Co Inc | 20,000 | $430.6K | 0.02% | +20,000 | New |
| Premier Fund Managers Ltd | 18,934 | $411.0K | 0.01% | +18,934 | New |