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 |
|---|---|---|---|---|---|
| Covestor Ltd | 13 | $0 | 0.00% | −10,311−99.9% | Reduced |
| Cloud Capital Management, LLC | 39 | $0 | 0.00% | +39 | New |
| Huntington National Bank | 1 | $23 | 0.00% | 00.0% | Unchanged |
| Tortoise Investment Management, LLC | 3 | $70 | 0.00% | +3 | New |
| Parkside Financial Bank & Trust | 13 | $303 | 0.00% | −57−81.4% | Reduced |
| Anfield Capital Management, LLC | 14 | $326 | 0.00% | +14 | New |
| Signaturefd, LLC | 15 | $349 | 0.00% | 00.0% | Unchanged |
| Bay Harbor Wealth Management, LLC | 17 | $395 | 0.00% | +2+13.3% | Added |
| HFM Investment Advisors, LLC | 19 | $442 | 0.00% | 00.0% | Unchanged |
| Rialto Wealth Management, LLC | 19 | $442 | 0.00% | +6+46.2% | Added |
| Abound Wealth Management | 22 | $512 | 0.00% | +22 | New |
| Raffa Wealth Management, LLC | 24 | $558 | 0.00% | +24 | New |
| SJS Investment Consulting Inc. | 25 | $582 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 31 | $721 | 0.00% | −23−42.6% | Reduced |
| Cedar Mountain Advisors, LLC | 37 | $861 | 0.00% | +37 | New |
| Assetmark, Inc | 41 | $954 | 0.00% | +13+46.4% | Added |
| DecisionPoint Financial, LLC | 47 | $1.09K | 0.00% | 00.0% | Unchanged |
| SWAN Capital LLC | 50 | $1.16K | 0.00% | +25+100.0% | Added |
| Bare Financial Services, Inc | 58 | $1.35K | 0.00% | 00.0% | Unchanged |
| Wealthspire Advisors, LLC | 60 | $1.40K | 0.00% | +60 | New |
| Glen Eagle Advisors, LLC | 62 | $1.44K | 0.00% | +62 | New |
| Marquette Asset Management, LLC | 67 | $1.56K | 0.00% | +67 | New |
| Sunbelt Securities, Inc. | 69 | $1.60K | 0.00% | +69 | New |
| Fortitude Family Office, LLC | 71 | $1.65K | 0.00% | +19+36.5% | Added |
| Toth Financial Advisory Corp | 85 | $1.98K | 0.00% | 00.0% | Unchanged |
| Harvest Fund Management Co., Ltd | 93 | $2.00K | 0.00% | +93 | New |
| Stone House Investment Management, LLC | 90 | $2.09K | 0.00% | +90 | New |
| Bell Investment Advisors, Inc | 103 | $2.40K | 0.00% | 00.0% | Unchanged |
| Highline Wealth Partners LLC | 126 | $2.93K | 0.00% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 127 | $2.96K | 0.00% | 00.0% | Unchanged |
| Ronald Blue Trust, Inc. | 146 | $3.40K | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 145 | $3.44K | 0.00% | +45+45.0% | Added |
| Hantz Financial Services, Inc. | 170 | $4.00K | 0.00% | +170 | New |
| Northwestern Mutual Wealth Management Co | 177 | $4.12K | 0.00% | +177 | New |
| Ameriflex Group, Inc. | 188 | $4.37K | 0.00% | +94+100.0% | Added |
| Larson Financial Group LLC | 204 | $4.75K | 0.00% | +121+145.8% | Added |
| Harbour Investments, Inc. | 207 | $4.82K | 0.00% | 00.0% | Unchanged |
| Private Trust Co NA | 221 | $5.14K | 0.00% | −6−2.6% | Reduced |
| Quarry LP | 231 | $5.37K | 0.00% | +231 | New |
| IFP Advisors, Inc | 244 | $5.67K | 0.00% | −25−9.3% | Reduced |
| Transamerica Financial Advisors, Inc. | 246 | $5.72K | 0.00% | +246 | New |
| Clearstead Advisors, LLC | 286 | $6.65K | 0.00% | −875−75.4% | Reduced |
| Caitong International Asset Management Co., Ltd | 290 | $6.75K | 0.00% | +290 | New |
| Millstone Evans Group, LLC | 292 | $6.79K | 0.00% | +292 | New |
| Rothschild Investment LLC | 300 | $6.98K | 0.00% | −110−26.8% | Reduced |
| CoreCap Advisors, LLC | 302 | $7.03K | 0.00% | −54−15.2% | Reduced |
| Murphy & Mullick Capital Management Corp | 250 | $7.26K | 0.01% | 00.0% | Unchanged |
| Groupe la Francaise | 400 | $7.66K | 0.00% | +400 | New |
| Hemington Wealth Management | 346 | $8.00K | 0.00% | +66+23.6% | Added |
| Cullen/Frost Bankers, Inc. | 378 | $8.79K | 0.00% | +299+378.5% | Added |
| Hillsdale Investment Management Inc. | 400 | $9.30K | 0.00% | 00.0% | Unchanged |
| WPG Advisers, LLC | 405 | $9.42K | 0.01% | −58−12.5% | Reduced |
| ORG Partners LLC | 455 | $10.6K | 0.00% | +30+7.1% | Added |
| Umb Bank N A | 488 | $11.4K | 0.00% | +488 | New |
| Whittier Trust Co of Nevada Inc | 500 | $11.4K | 0.00% | +500 | New |
| Allworth Financial LP | 510 | $11.9K | 0.00% | +29+6.0% | Added |
| Optiver Holding B.V. | 514 | $12.0K | 0.00% | +514 | New |
| Rise Advisors, LLC | 579 | $13.5K | 0.00% | 00.0% | Unchanged |
| Avion Wealth | 620 | $14.0K | 0.00% | 00.0% | Unchanged |
| Banque Cantonale Vaudoise | 594 | $14.0K | 0.00% | 00.0% | Unchanged |
| CIBC Private Wealth Group, LLC | 676 | $15.7K | 0.00% | +276+69.0% | Added |
| Public Employees Retirement System of Ohio | 678 | $15.8K | 0.00% | +202+42.4% | Added |
| True Wealth Design, LLC | 678 | $15.8K | 0.00% | 00.0% | Unchanged |
| Bessemer Group Inc | 679 | $16.0K | 0.00% | −274−28.8% | Reduced |
| Principal Securities, Inc. | 714 | $16.6K | 0.00% | +234+48.8% | Added |
| Root Financial Partners, LLC | 716 | $16.7K | 0.00% | +716 | New |
| Fifth Third Bancorp | 821 | $19.1K | 0.00% | +821 | New |
| Raleigh Capital Management Inc. | 843 | $19.6K | 0.01% | −45−5.1% | Reduced |
| Danske Bank A/S | 900 | $20.9K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 940 | $21.9K | 0.00% | +210+28.8% | Added |
| Essential Partners LLC | 975 | $22.7K | 0.01% | +4+0.4% | Added |
| TD Waterhouse Canada Inc. | 1,000 | $23.1K | 0.00% | +1,000 | New |
| Zazove Associates LLC | 1,000 | $23.3K | 0.00% | +1,000 | New |
| Advisory Services Network, LLC | 1,058 | $24.6K | 0.00% | +1,058 | New |
| Quadrant Capital Group LLC | 1,065 | $24.8K | 0.00% | +1,065 | New |
| Steward Partners Investment Advisory, LLC | 1,078 | $25.1K | 0.00% | +1,041+2,813.5% | Added |
| Wolff Wiese Magana LLC | 1,100 | $25.6K | 0.01% | +1,100 | New |
| Global Retirement Partners, LLC | 1,131 | $26.3K | 0.00% | −369−24.6% | Reduced |
| REAP Financial Group, LLC | 1,168 | $27.2K | 0.01% | +75+6.9% | Added |
| Salomon & Ludwin, LLC | 1,270 | $30.5K | 0.00% | +1,270 | New |
| Versant Capital Management, Inc | 1,355 | $31.5K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 1,651 | $38.4K | 0.00% | +811+96.5% | Added |
| Parallel Advisors, LLC | 1,812 | $42.1K | 0.00% | +5+0.3% | Added |
| EverSource Wealth Advisors, LLC | 2,056 | $47.8K | 0.00% | +414+25.2% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 2,350 | $55.0K | 0.00% | +86+3.8% | Added |
| Walleye Trading LLC | 2,463 | $57.3K | 0.00% | −6,710−73.1% | Reduced |
| Central Pacific Bank - Trust Division | 2,500 | $58.1K | 0.01% | 00.0% | Unchanged |
| Quest Partners LLC | 3,241 | $75.4K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 3,909 | $90.9K | 0.00% | +543+16.1% | Added |
| GWM Advisors LLC | 4,628 | $107.6K | 0.00% | +4,628 | New |
| Tower Research Capital LLC (TRC) | 5,742 | $133.6K | 0.00% | −34,136−85.6% | Reduced |
| Smartleaf Asset Management LLC | 6,102 | $137.2K | 0.01% | −44−0.7% | Reduced |
| Advisor Group Holdings, Inc. | 6,441 | $147.9K | 0.00% | +639+11.0% | Added |
| KBC Group NV | 6,348 | $148.0K | 0.00% | 00.0% | Unchanged |
| Torno Capital, LLC | 6,410 | $149.1K | 0.02% | +6,410 | New |
| US Bancorp | 6,874 | $159.9K | 0.00% | +425+6.6% | Added |
| Aster Capital Management (DIFC) Ltd | 8,070 | $187.7K | 0.09% | +8,070 | New |
| SRS Capital Advisors, Inc. | 8,458 | $196.7K | 0.00% | +7,961+1,601.8% | Added |
| CastleKnight Management LP | 8,750 | $203.5K | 0.01% | −8,750−50.0% | Reduced |
| Absher Wealth Management, LLC | 9,000 | $209.3K | 0.03% | +9,000 | New |