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, Q3 2025
Institutional positions in Mirion Technologies, Inc. as of Sep 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
- 343
- +44 vs. Q2 2025
- Shares held
- 255.0M
- +47.7M (+23.0%) vs. Q2 2025
- Total value
- $5.93B
- +$1.47B (+32.9%) vs. Q2 2025
- New holders
- 91
- 129 more added
- Sold out
- 47
- 91 more reduced
3 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Mirion Technologies, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vontobel Holding Ltd. | 27,676 | $643.7K | 0.00% | −9,863−26.3% | Reduced |
| Public Employees Retirement Association of Colorado | 27,553 | $641.0K | 0.00% | −785−2.8% | Reduced |
| Mutual of America Capital Management LLC | 27,457 | $638.6K | 0.01% | +27,457 | New |
| Premier Fund Managers Ltd | 28,152 | $633.0K | 0.03% | +9,218+48.7% | Added |
| SummitTX Capital, L.P. | 25,482 | $592.7K | 0.02% | −124,518−83.0% | Reduced |
| CIBC Bancorp USA Inc. | 25,060 | $582.9K | 0.00% | +25,060 | New |
| Mackenzie Financial Corp | 24,289 | $565.0K | 0.00% | −283−1.2% | Reduced |
| Simon Quick Advisors, LLC | 23,879 | $555.4K | 0.03% | 00.0% | Unchanged |
| Janney Montgomery Scott LLC | 22,760 | $529.0K | 0.00% | +321+1.4% | Added |
| Toroso Investments, LLC | 20,777 | $483.3K | 0.00% | −497−2.3% | Reduced |
| Russell Investments Group, Ltd. | 19,845 | $461.6K | 0.00% | +19,758+22,710.3% | Added |
| Ameritas Investment Partners, Inc. | 19,840 | $461.5K | 0.01% | −1,615−7.5% | Reduced |
| Cetera Investment Advisers | 17,871 | $415.7K | 0.00% | +4,473+33.4% | Added |
| Wealth Enhancement Advisory Services, LLC | 17,851 | $412.9K | 0.00% | +304+1.7% | Added |
| Xponance, Inc. | 17,360 | $403.8K | 0.00% | +701+4.2% | Added |
| CWM, LLC | 17,095 | $398.0K | 0.00% | +185+1.1% | Added |
| Dymon Asia Capital (Singapore) Pte. Ltd. | 17,100 | $397.7K | 0.16% | +17,100 | New |
| Axq Capital, LP | 16,795 | $390.7K | 0.15% | −9,859−37.0% | Reduced |
| NBC Securities, Inc. | 16,209 | $377.0K | 0.03% | +6,405+65.3% | Added |
| Bank of Montreal | 16,095 | $374.4K | 0.00% | −49,545−75.5% | Reduced |
| Captrust Financial Advisors | 15,652 | $364.1K | 0.00% | +5,448+53.4% | Added |
| MML Investors Services, LLC | 14,912 | $346.9K | 0.00% | +1,464+10.9% | Added |
| Natixis Advisors, L.P. | 14,096 | $328.0K | 0.00% | +14,096 | New |
| Keybank National Association | 13,615 | $316.7K | 0.00% | +68+0.5% | Added |
| Cerity Partners LLC | 13,483 | $313.6K | 0.00% | +1,752+14.9% | Added |
| The PNC Financial Services Group, Inc. | 12,728 | $296.1K | 0.00% | −4,084−24.3% | Reduced |
| CI Private Wealth, LLC | 12,411 | $288.7K | 0.00% | +12,411 | New |
| Glenmede Investment Management, LP | 11,959 | $278.2K | 0.00% | +11,959 | New |
| Ethic Inc. | 11,476 | $266.9K | 0.00% | +1,531+15.4% | Added |
| Diametric Capital, LP | 11,448 | $266.3K | 0.10% | +11,448 | New |
| Profund Advisors LLC | 11,287 | $262.5K | 0.01% | +11,287 | New |
| Altshuler Shaham Ltd | 11,141 | $259.1K | 0.00% | +1,622+17.0% | Added |
| Van Eck Associates Corp | 10,500 | $244.0K | 0.00% | +10,500 | New |
| Bailard, Inc. | 10,348 | $240.7K | 0.01% | −7,400−41.7% | Reduced |
| Stratos Wealth Partners, LTD. | 10,083 | $234.5K | 0.00% | +10,083 | New |
| O'Shaughnessy Asset Management, LLC | 10,021 | $233.1K | 0.00% | +10,021 | New |
| Corient IA LLC | 10,000 | $232.6K | 0.17% | −50,000−83.3% | Reduced |
| Swiss Life Asset Management Ltd | 9,832 | $228.7K | 0.00% | +9,832 | New |
| State of Wyoming | 9,687 | $225.3K | 0.03% | +3,454+55.4% | Added |
| Integrated Advisors Network LLC | 9,538 | $221.9K | 0.01% | −2,633−21.6% | Reduced |
| FORA Capital, LLC | 9,436 | $219.5K | 0.04% | −49,467−84.0% | Reduced |
| Forum Financial Management, LP | 9,317 | $216.7K | 0.00% | +20.0% | Added |
| Verdence Capital Advisors LLC | 8,814 | $216.3K | 0.01% | +8,814 | New |
| Absher Wealth Management, LLC | 9,000 | $209.3K | 0.03% | +9,000 | New |
| CastleKnight Management LP | 8,750 | $203.5K | 0.01% | −8,750−50.0% | Reduced |
| SRS Capital Advisors, Inc. | 8,458 | $196.7K | 0.00% | +7,961+1,601.8% | Added |
| Aster Capital Management (DIFC) Ltd | 8,070 | $187.7K | 0.09% | +8,070 | New |
| US Bancorp | 6,874 | $159.9K | 0.00% | +425+6.6% | Added |
| Torno Capital, LLC | 6,410 | $149.1K | 0.02% | +6,410 | New |
| KBC Group NV | 6,348 | $148.0K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 6,441 | $147.9K | 0.00% | +639+11.0% | Added |
| Smartleaf Asset Management LLC | 6,102 | $137.2K | 0.01% | −44−0.7% | Reduced |
| Tower Research Capital LLC (TRC) | 5,742 | $133.6K | 0.00% | −34,136−85.6% | Reduced |
| GWM Advisors LLC | 4,628 | $107.6K | 0.00% | +4,628 | New |
| Nisa Investment Advisors, LLC | 3,909 | $90.9K | 0.00% | +543+16.1% | Added |
| Quest Partners LLC | 3,241 | $75.4K | 0.00% | 00.0% | Unchanged |
| Central Pacific Bank - Trust Division | 2,500 | $58.1K | 0.01% | 00.0% | Unchanged |
| Walleye Trading LLC | 2,463 | $57.3K | 0.00% | −6,710−73.1% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 2,350 | $55.0K | 0.00% | +86+3.8% | Added |
| EverSource Wealth Advisors, LLC | 2,056 | $47.8K | 0.00% | +414+25.2% | Added |
| Parallel Advisors, LLC | 1,812 | $42.1K | 0.00% | +5+0.3% | Added |
| Farther Finance Advisors, LLC | 1,651 | $38.4K | 0.00% | +811+96.5% | Added |
| Versant Capital Management, Inc | 1,355 | $31.5K | 0.00% | 00.0% | Unchanged |
| Salomon & Ludwin, LLC | 1,270 | $30.5K | 0.00% | +1,270 | New |
| REAP Financial Group, LLC | 1,168 | $27.2K | 0.01% | +75+6.9% | Added |
| Global Retirement Partners, LLC | 1,131 | $26.3K | 0.00% | −369−24.6% | Reduced |
| Wolff Wiese Magana LLC | 1,100 | $25.6K | 0.01% | +1,100 | New |
| Steward Partners Investment Advisory, LLC | 1,078 | $25.1K | 0.00% | +1,041+2,813.5% | Added |
| Quadrant Capital Group LLC | 1,065 | $24.8K | 0.00% | +1,065 | New |
| Advisory Services Network, LLC | 1,058 | $24.6K | 0.00% | +1,058 | New |
| Zazove Associates LLC | 1,000 | $23.3K | 0.00% | +1,000 | New |
| TD Waterhouse Canada Inc. | 1,000 | $23.1K | 0.00% | +1,000 | New |
| Essential Partners LLC | 975 | $22.7K | 0.01% | +4+0.4% | Added |
| GAMMA Investing LLC | 940 | $21.9K | 0.00% | +210+28.8% | Added |
| Danske Bank A/S | 900 | $20.9K | 0.00% | 00.0% | Unchanged |
| Raleigh Capital Management Inc. | 843 | $19.6K | 0.01% | −45−5.1% | Reduced |
| Fifth Third Bancorp | 821 | $19.1K | 0.00% | +821 | New |
| Root Financial Partners, LLC | 716 | $16.7K | 0.00% | +716 | New |
| Principal Securities, Inc. | 714 | $16.6K | 0.00% | +234+48.8% | Added |
| Bessemer Group Inc | 679 | $16.0K | 0.00% | −274−28.8% | Reduced |
| True Wealth Design, LLC | 678 | $15.8K | 0.00% | 00.0% | Unchanged |
| Public Employees Retirement System of Ohio | 678 | $15.8K | 0.00% | +202+42.4% | Added |
| CIBC Private Wealth Group, LLC | 676 | $15.7K | 0.00% | +276+69.0% | Added |
| Avion Wealth | 620 | $14.0K | 0.00% | 00.0% | Unchanged |
| Banque Cantonale Vaudoise | 594 | $14.0K | 0.00% | 00.0% | Unchanged |
| Rise Advisors, LLC | 579 | $13.5K | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 514 | $12.0K | 0.00% | +514 | New |
| Allworth Financial LP | 510 | $11.9K | 0.00% | +29+6.0% | Added |
| Whittier Trust Co of Nevada Inc | 500 | $11.4K | 0.00% | +500 | New |
| Umb Bank N A | 488 | $11.4K | 0.00% | +488 | New |
| ORG Partners LLC | 455 | $10.6K | 0.00% | +30+7.1% | Added |
| WPG Advisers, LLC | 405 | $9.42K | 0.01% | −58−12.5% | Reduced |
| Hillsdale Investment Management Inc. | 400 | $9.30K | 0.00% | 00.0% | Unchanged |
| Cullen/Frost Bankers, Inc. | 378 | $8.79K | 0.00% | +299+378.5% | Added |
| Hemington Wealth Management | 346 | $8.00K | 0.00% | +66+23.6% | Added |
| Groupe la Francaise | 400 | $7.66K | 0.00% | +400 | New |
| Murphy & Mullick Capital Management Corp | 250 | $7.26K | 0.01% | 00.0% | Unchanged |
| CoreCap Advisors, LLC | 302 | $7.03K | 0.00% | −54−15.2% | Reduced |
| Rothschild Investment LLC | 300 | $6.98K | 0.00% | −110−26.8% | Reduced |
| Millstone Evans Group, LLC | 292 | $6.79K | 0.00% | +292 | New |