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 |
|---|---|---|---|---|---|
| Bailard, Inc. | 17,748 | $382.1K | 0.01% | +17,748 | New |
| Aigen Investment Management, LP | 18,596 | $400.4K | 0.05% | +18,596 | New |
| Premier Fund Managers Ltd | 18,934 | $411.0K | 0.01% | +18,934 | New |
| Cookson Peirce & Co Inc | 20,000 | $430.6K | 0.02% | +20,000 | New |
| HSBC Holdings PLC | 20,426 | $442.8K | 0.00% | −3,539−14.8% | Reduced |
| Toroso Investments, LLC | 21,274 | $458.0K | 0.00% | +4,057+23.6% | Added |
| Ameritas Investment Partners, Inc. | 21,455 | $461.9K | 0.01% | +557+2.7% | Added |
| Janney Montgomery Scott LLC | 22,439 | $483.0K | 0.00% | +22,439 | New |
| Simon Quick Advisors, LLC | 23,879 | $514.1K | 0.03% | −826−3.3% | Reduced |
| Mackenzie Financial Corp | 24,572 | $529.0K | 0.00% | +2,094+9.3% | Added |
| Graham Capital Management, L.P. | 25,000 | $538.3K | 0.02% | −30,154−54.7% | Reduced |
| CIBC World Markets Corp | 25,892 | $557.5K | 0.00% | −19,946−43.5% | Reduced |
| Axq Capital, LP | 26,654 | $573.9K | 0.19% | +26,654 | New |
| Prudential Financial Inc | 27,010 | $581.5K | 0.00% | +11,065+69.4% | Added |
| CSS LLC | 28,070 | $604.3K | 0.04% | +28,070 | New |
| Public Employees Retirement Association of Colorado | 28,338 | $610.0K | 0.00% | +28,338 | New |
| Two Sigma Investments, LP | 28,650 | $616.8K | 0.00% | +28,650 | New |
| Jefferies Financial Group Inc. | 30,000 | $645.9K | 0.01% | −26,300−46.7% | Reduced |
| Sanctuary Advisors, LLC | 30,451 | $655.6K | 0.00% | +12,108+66.0% | Added |
| Oppenheimer & Co Inc | 31,512 | $678.5K | 0.01% | −1,803−5.4% | Reduced |
| Truist Financial Corp | 32,167 | $692.6K | 0.00% | +16,484+105.1% | Added |
| Teacher Retirement System of Texas | 32,341 | $696.3K | 0.00% | +2,776+9.4% | Added |
| Brevan Howard Capital Management LP | 32,925 | $708.9K | 0.01% | +32,925 | New |
| Pictet Asset Management Holding SA | 34,784 | $749.4K | 0.00% | −226−0.6% | Reduced |
| Vontobel Holding Ltd. | 37,539 | $808.2K | 0.00% | −22,356−37.3% | Reduced |
| Ieq Capital, LLC | 38,083 | $819.9K | 0.01% | +23,164+155.3% | Added |
| Options Solutions, LLC | 38,191 | $822.3K | 0.29% | +12,257+47.3% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 38,387 | $826.5K | 0.00% | 00.0% | Unchanged |
| Twin Tree Management, LP | 39,581 | $852.2K | 0.02% | +39,581 | New |
| Tower Research Capital LLC (TRC) | 39,878 | $858.6K | 0.02% | +34,292+613.9% | Added |
| Cresset Asset Management, LLC | 42,500 | $915.0K | 0.00% | −16,000−27.4% | 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 |
| ProShare Advisors LLC | 43,091 | $927.7K | 0.00% | −1,630−3.6% | Reduced |
| Groupama Asset Managment | – | $932.4K | 0.02% | – | New |
| 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 |
| LPL Financial LLC | 45,170 | $972.5K | 0.00% | −3,648−7.5% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 47,951 | $1.03M | 0.01% | +3,843+8.7% | Added |
| Ci Investments Inc. | 52,865 | $1.14M | 0.00% | +52,865 | New |
| Blackhawk Capital Partners LLC. | 52,893 | $1.14M | 0.53% | +52,893 | New |
| State Board of Administration of Florida Retirement System | 57,210 | $1.23M | 0.00% | 00.0% | Unchanged |
| Polen Capital Management LLC | 57,230 | $1.23M | 0.00% | +57,230 | New |
| 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 |
| Mariner, LLC | 57,454 | $1.24M | 0.00% | +1,276+2.3% | Added |
| Voya Investment Management LLC | 57,472 | $1.24M | 0.00% | +1,634+2.9% | Added |
| FORA Capital, LLC | 58,903 | $1.27M | 0.14% | +58,903 | New |
| Corient IA LLC | 60,000 | $1.29M | 0.76% | +50,000+500.0% | Added |
| Handelsbanken Fonder AB | 61,031 | $1.31M | 0.00% | 00.0% | Unchanged |
| STRS Ohio | 62,100 | $1.34M | 0.00% | +42,800+221.8% | Added |
| Arizona State Retirement System | 62,433 | $1.34M | 0.01% | +4,219+7.2% | Added |
| Register Financial Advisors LLC | 63,800 | $1.37M | 0.60% | +34,500+117.7% | Added |
| Sumitomo Life Insurance Co | 64,495 | $1.39M | 0.09% | +41,819+184.4% | Added |
| Bank of Montreal | 65,640 | $1.41M | 0.00% | +65,640 | New |
| Weiss Asset Management LP | 66,910 | $1.44M | 0.02% | +66,910 | New |
| Y-Intercept (Hong Kong) Ltd | 71,014 | $1.53M | 0.04% | +71,014 | New |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 71,700 | $1.54M | 0.03% | +71,700 | New |
| Jackson Creek Investment Advisors LLC | 74,000 | $1.59M | 0.43% | +74,000 | New |
| SG Americas Securities, LLC | 75,406 | $1.62M | 0.01% | +56,385+296.4% | Added |
| Daiwa Securities Group Inc. | 75,700 | $1.63M | 0.01% | +75,700 | New |
| Walleye Capital LLC | 81,997 | $1.77M | 0.02% | −204,323−71.4% | Reduced |
| Sterling Capital Management LLC | 82,245 | $1.77M | 0.03% | −2,620−3.1% | Reduced |
| Aristeia Capital LLC | 86,002 | $1.85M | 0.05% | +86,002 | New |
| Sandler Capital Management | 89,356 | $1.92M | 0.67% | −92,431−50.8% | Reduced |
| Wolverine Asset Management LLC | 89,452 | $1.93M | 0.03% | +41,452+86.4% | Added |
| Susquehanna Advisors Group, Inc. | 91,689 | $1.97M | 0.08% | +91,689 | New |
| Boothbay Fund Management, LLC | 95,790 | $2.06M | 0.06% | +95,790 | New |
| Centiva Capital, LP | 96,267 | $2.07M | 0.14% | +96,267 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 102,225 | $2.20M | 0.01% | +102,225 | New |
| Capstone Investment Advisors, LLC | 104,350 | $2.25M | 0.02% | +104,350 | New |
| Creative Planning | 104,996 | $2.26M | 0.00% | +47,648+83.1% | Added |
| TT International Asset Management LTD | 105,551 | $2.27M | 0.46% | +43,205+69.3% | Added |
| State of New Jersey Common Pension Fund D | 105,811 | $2.28M | 0.01% | −20,876−16.5% | Reduced |
| Polar Asset Management Partners Inc. | 107,498 | $2.31M | 0.06% | +107,498 | New |
| Manufacturers Life Insurance Company, The | 111,723 | $2.41M | 0.00% | −5,722−4.9% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 115,332 | $2.48M | 0.00% | −7,630−6.2% | Reduced |
| Principal Financial Group Inc | 115,358 | $2.48M | 0.00% | +101,301+720.6% | Added |
| Renaissance Technologies LLC | 115,900 | $2.50M | 0.00% | −527,800−82.0% | Reduced |
| Simplex Trading, LLC | 118,949 | $2.56M | 0.07% | +87,579+279.2% | Added |
| Munro Partners | 121,875 | $2.62M | 0.08% | +121,875 | New |
| MetLife Investment Management | 125,535 | $2.70M | 0.02% | +2,852+2.3% | Added |
| Intech Investment Management LLC | 127,952 | $2.75M | 0.03% | 00.0% | Unchanged |
| Neo Ivy Capital Management | 132,188 | $2.85M | 0.91% | +132,188 | New |
| New York State Common Retirement Fund | 133,181 | $2.87M | 0.00% | +16,153+13.8% | Added |
| Pathstone Holdings, LLC | 138,600 | $2.98M | 0.01% | +38,919+39.0% | Added |
| Nomura Holdings Inc | 141,946 | $3.06M | 0.02% | +141,946 | New |
| BNP Paribas Arbitrage, SA | 148,395 | $3.19M | 0.00% | +134,948+1,003.6% | Added |
| SummitTX Capital, L.P. | 150,000 | $3.23M | 0.14% | +150,000 | New |
| Legato Capital Management LLC | 150,639 | $3.24M | 0.39% | +14,514+10.7% | Added |
| State of Wisconsin Investment Board | 153,774 | $3.31M | 0.01% | +42,511+38.2% | Added |
| Jain Global LLC | 162,968 | $3.51M | 0.05% | +162,968 | New |
| Roubaix Capital, LLC | 166,347 | $3.58M | 1.72% | −212,751−56.1% | Reduced |
| Balyasny Asset Management LLC | 167,245 | $3.60M | 0.01% | +3,213+2.0% | Added |
| Price T Rowe Associates Inc | 169,145 | $3.64M | 0.00% | +19,015+12.7% | Added |
| Arosa Capital Management LP | 180,273 | $3.88M | 2.83% | −687,988−79.2% | Reduced |
| Exchange Traded Concepts, LLC | 181,473 | $3.91M | 0.05% | +47,468+35.4% | Added |
| First Trust Advisors LP | 190,035 | $4.09M | 0.00% | −127,372−40.1% | Reduced |
| Candelo Capital Management LP | 203,161 | $4.37M | 4.19% | +203,161 | New |
| California State Teachers Retirement System | 203,402 | $4.38M | 0.00% | +25,999+14.7% | Added |