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 2024
Institutional positions in Mirion Technologies, Inc. as of Sep 30, 2024. 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
- 176
- +22 vs. Q2 2024
- Shares held
- 205.1M
- +23.7M (+13.0%) vs. Q2 2024
- Total value
- $2.27B
- +$324.1M (+16.6%) vs. Q2 2024
- New holders
- 36
- 74 more added
- Sold out
- 14
- 42 more reduced
1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2024: 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 2024
Shares, value and share of portfolio for each institution holding Mirion Technologies, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Goldman Sachs Group Inc | 34,809,020 | $385.3M | 0.07% | −3,168,827−8.3% | Reduced |
| Vanguard Group Inc | 23,682,624 | $262.2M | 0.00% | +1,797,077+8.2% | Added |
| T. Rowe Price Investment Management, Inc. | 20,171,888 | $223.3M | 0.13% | +190,277+1.0% | Added |
| BlackRock, Inc. | 15,972,920 | $176.8M | 0.00% | +15,972,920 | New |
| Swedbank AB | 10,219,000 | $113.1M | 0.14% | −162,062−1.6% | Reduced |
| Janus Henderson Group PLC | 8,100,777 | $89.7M | 0.05% | −584,490−6.7% | Reduced |
| Cooperman Leon G | 8,025,000 | $88.8M | 3.77% | +25,000+0.3% | Added |
| Alyeska Investment Group, L.P. | 7,818,626 | $86.6M | 0.44% | +843,592+12.1% | Added |
| Dimensional Fund Advisors LP | 7,013,776 | $77.6M | 0.02% | +901,843+14.8% | Added |
| State Street Corp | 5,365,728 | $59.4M | 0.00% | +138,648+2.7% | Added |
| Geode Capital Management, LLC | 4,502,455 | $49.9M | 0.00% | +147,408+3.4% | Added |
| Select Equity Group, L.P. | 4,317,704 | $47.8M | 0.17% | −1,466,184−25.3% | Reduced |
| ACK Asset Management LLC | 4,246,300 | $47.0M | 5.81% | +948,720+28.8% | Added |
| American Century Companies Inc | 3,812,596 | $42.2M | 0.02% | −129,975−3.3% | Reduced |
| Adage Capital Partners GP, L.L.C. | 3,620,674 | $40.1M | 0.07% | +375,000+11.6% | Added |
| P2 Capital Partners, LLC | 3,350,000 | $37.1M | 4.23% | −1,351,000−28.7% | Reduced |
| Corsair Capital Management, L.P. | 3,160,850 | $35.0M | 8.28% | +1,441,846+83.9% | Added |
| ArrowMark Colorado Holdings LLC | 3,000,060 | $33.2M | 0.43% | +241,334+8.7% | Added |
| FIL Ltd | 2,510,893 | $27.8M | 0.03% | +2,135,555+569.0% | Added |
| Northern Trust Corp | 1,713,425 | $19.0M | 0.00% | +56,577+3.4% | Added |
| First Manhattan Co | 1,706,517 | $18.9M | 0.06% | −17,874−1.0% | Reduced |
| Charles Schwab Investment Management Inc | 1,559,576 | $17.3M | 0.00% | +38,474+2.5% | Added |
| Millennium Management LLC | 1,548,297 | $17.1M | 0.01% | +1,014,763+190.2% | Added |
| Schwartz Investment Counsel Inc | 1,519,300 | $16.8M | 0.60% | 00.0% | Unchanged |
| Lord, Abbett & Co. LLC | 1,387,535 | $15.4M | 0.05% | −54,503−3.8% | Reduced |
| Chescapmanager LLC | 1,041,401 | $11.5M | 1.94% | +7,595+0.7% | Added |
| Crestline Management, LP | 941,649 | $10.4M | 0.59% | +131,649+16.3% | Added |
| Morgan Stanley | 869,202 | $9.62M | 0.00% | +284,556+48.7% | Added |
| Nuveen Asset Management, LLC | 793,384 | $8.78M | 0.00% | +12,278+1.6% | Added |
| Eagle Asset Management Inc | 505,247 | $7.82M | 0.04% | +190,654+60.6% | Added |
| Bank of New York Mellon Corp | 648,181 | $7.18M | 0.00% | −168,573−20.6% | Reduced |
| UBS Group AG | 644,457 | $7.13M | 0.00% | +219,535+51.7% | Added |
| Gamco Investors, Inc. Et Al | 634,770 | $7.03M | 0.07% | −100,875−13.7% | Reduced |
| Qube Research & Technologies Ltd | 621,725 | $6.88M | 0.01% | +461,621+288.3% | Added |
| Gabelli Funds LLC | 616,688 | $6.83M | 0.05% | −45,000−6.8% | Reduced |
| Moore Capital Management, LP | 598,170 | $6.62M | 0.19% | +598,170 | New |
| Royce & Associates LP | 484,000 | $5.36M | 0.05% | +4,000+0.8% | Added |
| Freshford Capital Management, LLC | 475,801 | $5.27M | 1.65% | +475,801 | New |
| Jennison Associates LLC | 465,553 | $5.15M | 0.00% | +393,752+548.4% | Added |
| Nicholas Investment Partners, LP | 438,165 | $4.85M | 0.45% | −48,126−9.9% | Reduced |
| Shellback Capital, LP | 408,810 | $4.53M | 0.37% | +408,810 | New |
| Lazard Asset Management LLC | 408,037 | $4.52M | 0.01% | +15,773+4.0% | Added |
| Telemark Asset Management, LLC | 400,000 | $4.43M | 0.45% | +400,000 | New |
| TD Asset Management Inc | 388,956 | $4.30M | 0.00% | +10,406+2.7% | Added |
| Roubaix Capital, LLC | 385,130 | $4.26M | 2.35% | +385,130 | New |
| Swiss National Bank | 374,800 | $4.15M | 0.00% | +31,200+9.1% | Added |
| Aperture Investors, LLC | 369,226 | $4.09M | 0.52% | +149,132+67.8% | Added |
| Rice Hall James & Associates, LLC | 352,737 | $3.90M | 0.21% | +131,453+59.4% | Added |
| Essex Investment Management Co LLC | 351,478 | $3.89M | 0.68% | +980+0.3% | Added |
| Sandler Capital Management | 345,000 | $3.82M | 0.74% | +345,000 | New |
| Segall Bryant & Hamill, LLC | 339,674 | $3.76M | 0.05% | −13,872−3.9% | Reduced |
| Rhumbline Advisers | 310,179 | $3.43M | 0.00% | −15,390−4.7% | Reduced |
| Barclays PLC | 307,680 | $3.41M | 0.00% | +235,288+325.0% | Added |
| UBS Asset Management Americas Inc | 292,837 | $3.24M | 0.00% | −36,378−11.0% | Reduced |
| First Trust Advisors LP | 264,946 | $2.93M | 0.00% | −21,997−7.7% | Reduced |
| Invesco Ltd. | 264,248 | $2.93M | 0.00% | +15,688+6.3% | Added |
| Portolan Capital Management, LLC | 236,975 | $2.62M | 0.19% | +236,975 | New |
| Bank of America Corp | 235,032 | $2.60M | 0.00% | +48,426+26.0% | Added |
| Wells Fargo & Company | 225,768 | $2.50M | 0.00% | +41,982+22.8% | Added |
| Alliancebernstein L.P. | 220,657 | $2.44M | 0.00% | +2,548+1.2% | Added |
| JPMorgan Chase & Co | 220,133 | $2.44M | 0.00% | −129,586−37.1% | Reduced |
| Hollow Brook Wealth Management LLC | 217,178 | $2.40M | 0.71% | +9,572+4.6% | Added |
| Yaupon Capital Management LP | 214,042 | $2.37M | 0.16% | +214,042 | New |
| M&T Bank Corp | 200,228 | $2.22M | 0.01% | +570.0% | Added |
| Alberta Investment Management Corp | 193,999 | $2.15M | 0.02% | +25,849+15.4% | Added |
| Legal & General Group Plc | 193,811 | $2.15M | 0.00% | +25,627+15.2% | Added |
| Squarepoint Ops LLC | 189,614 | $2.10M | 0.01% | +37,544+24.7% | Added |
| Verition Fund Management LLC | 188,210 | $2.08M | 0.01% | +188,210 | New |
| Maverick Capital LtdSuperinvestorMaverick Capital | 183,427 | $2.03M | 0.04% | +23,616+14.8% | Added |
| California State Teachers Retirement System | 182,241 | $2.02M | 0.00% | +9,804+5.7% | Added |
| Legato Capital Management LLC | 181,968 | $2.01M | 0.25% | 00.0% | Unchanged |
| State of New Jersey Common Pension Fund D | 179,998 | $1.99M | 0.01% | +4,043+2.3% | Added |
| Citigroup Inc | 174,549 | $1.93M | 0.00% | +67,986+63.8% | Added |
| Deutsche Bank AG | 170,438 | $1.89M | 0.00% | +30,598+21.9% | Added |
| Russell Investments Group, Ltd. | 163,766 | $1.81M | 0.00% | −36,959−18.4% | Reduced |
| New York State Common Retirement Fund | 132,415 | $1.47M | 0.00% | −19,700−13.0% | Reduced |
| Ardsley Advisory Partners LP | 125,000 | $1.38M | 0.26% | +25,000+25.0% | Added |
| Jane Street Group, LLC | 123,640 | $1.37M | 0.00% | −311,664−71.6% | Reduced |
| Price T Rowe Associates Inc | 123,366 | $1.37M | 0.00% | +5,492+4.7% | Added |
| MetLife Investment Management | 117,259 | $1.30M | 0.01% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 113,000 | $1.25M | 0.00% | −61,000−35.1% | Reduced |
| Concentric Capital Strategies, LP | 111,517 | $1.23M | 0.08% | +111,517 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 109,395 | $1.21M | 0.00% | +6,894+6.7% | Added |
| Manufacturers Life Insurance Company, The | 108,757 | $1.20M | 0.00% | −1,265−1.1% | Reduced |
| Corebridge Financial, Inc. | 106,860 | $1.18M | 0.01% | −658−0.6% | Reduced |
| Cinctive Capital Management LP | 85,313 | $944.4K | 0.05% | +85,313 | New |
| State of Wyoming | 82,624 | $914.6K | 0.13% | +78,694+2,002.4% | Added |
| MYDA Advisors LLC | 80,000 | $885.6K | 0.25% | +80,000 | New |
| Boston Partners | 79,931 | $884.8K | 0.00% | −47,218−37.1% | Reduced |
| Tudor Investment Corp Et Al | 65,499 | $725.1K | 0.01% | 00.0% | Unchanged |
| Voya Investment Management LLC | 65,479 | $724.9K | 0.00% | −1,578−2.4% | Reduced |
| Marshall Wace, LLP | 61,796 | $684.1K | 0.00% | +61,796 | New |
| Oppenheimer & Co Inc | 58,260 | $644.9K | 0.01% | +2,595+4.7% | Added |
| State Board of Administration of Florida Retirement System | 57,210 | $633.3K | 0.00% | 00.0% | Unchanged |
| Arizona State Retirement System | 55,290 | $612.1K | 0.00% | +6,322+12.9% | Added |
| Handelsbanken Fonder AB | 55,231 | $611.0K | 0.00% | +8,400+17.9% | Added |
| Intech Investment Management LLC | 52,641 | $582.7K | 0.01% | +52,641 | New |
| Teacher Retirement System of Texas | 42,218 | $467.0K | 0.00% | −4,759−10.1% | Reduced |
| ProShare Advisors LLC | 37,765 | $418.1K | 0.00% | +10,914+40.6% | Added |
| The PNC Financial Services Group, Inc. | 34,462 | $381.5K | 0.00% | +912+2.7% | Added |