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, Q4 2024
Institutional positions in Mirion Technologies, Inc. as of Dec 31, 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
- 224
- +52 vs. Q3 2024
- Shares held
- 193.9M
- −10.7M (−5.2%) vs. Q3 2024
- Total value
- $3.38B
- +$1.12B (+49.4%) vs. Q3 2024
- New holders
- 75
- 82 more added
- Sold out
- 23
- 55 more reduced
4 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2024
Shares, value and share of portfolio for each institution holding Mirion Technologies, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| AQR Capital Management LLC | 88,812 | $1.55M | 0.00% | +88,812 | New |
| Exchange Traded Concepts, LLC | 88,830 | $1.55M | 0.03% | +66,132+291.4% | Added |
| Susquehanna International Group, LLP | 89,825 | $1.57M | 0.00% | +63,436+240.4% | Added |
| Intech Investment Management LLC | 92,734 | $1.62M | 0.02% | +40,093+76.2% | Added |
| Ameriprise Financial Inc | 93,322 | $1.63M | 0.00% | +93,322 | New |
| Bryce Point Capital, LLC | 95,998 | $1.68M | 0.49% | +95,998 | New |
| Nomura Holdings Inc | 97,824 | $1.71M | 0.01% | +97,824 | New |
| CastleKnight Management LP | 99,900 | $1.74M | 0.19% | +99,900 | New |
| Corebridge Financial, Inc. | 102,702 | $1.79M | 0.01% | −4,158−3.9% | Reduced |
| Walleye Capital LLC | 103,151 | $1.80M | 0.02% | +103,151 | New |
| State of Wyoming | 104,750 | $1.83M | 0.23% | +22,126+26.8% | Added |
| Manufacturers Life Insurance Company, The | 107,132 | $1.87M | 0.00% | −1,625−1.5% | Reduced |
| Graham Capital Management, L.P. | 107,748 | $1.88M | 0.06% | +107,748 | New |
| First Trust Advisors LP | 109,257 | $1.91M | 0.00% | −155,689−58.8% | Reduced |
| Citadel Advisors LLC | 111,237 | $1.94M | 0.00% | +87,975+378.2% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 117,596 | $2.05M | 0.00% | +8,201+7.5% | Added |
| First Manhattan Co | 120,157 | $2.10M | 0.01% | −1,586,360−93.0% | Reduced |
| MetLife Investment Management | 124,137 | $2.17M | 0.01% | +6,878+5.9% | Added |
| Ardsley Advisory Partners LP | 125,000 | $2.18M | 0.42% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 125,422 | $2.19M | 0.00% | −6,993−5.3% | Reduced |
| State of New Jersey Common Pension Fund D | 129,100 | $2.25M | 0.01% | −50,898−28.3% | Reduced |
| Roubaix Capital, LLC | 136,640 | $2.38M | 1.14% | −248,490−64.5% | Reduced |
| Price T Rowe Associates Inc | 140,276 | $2.45M | 0.00% | +16,910+13.7% | Added |
| Adage Capital Partners GP, L.L.C. | 140,958 | $2.46M | 0.00% | −3,479,716−96.1% | Reduced |
| Renaissance Technologies LLC | 145,014 | $2.53M | 0.00% | +32,014+28.3% | Added |
| Legato Capital Management LLC | 145,470 | $2.54M | 0.33% | −36,498−20.1% | Reduced |
| Alberta Investment Management Corp | 154,160 | $2.69M | 0.02% | −39,839−20.5% | Reduced |
| HRT Financial LP | 155,399 | $2.71M | 0.01% | +155,399 | New |
| M&T Bank Corp | 160,116 | $2.79M | 0.01% | −40,112−20.0% | Reduced |
| Wolverine Asset Management LLC | 162,000 | $2.83M | 0.05% | +162,000 | New |
| Tudor Investment Corp Et Al | 165,866 | $2.89M | 0.03% | +100,367+153.2% | Added |
| Polar Asset Management Partners Inc. | 174,919 | $3.05M | 0.05% | +174,919 | New |
| Yaupon Capital Management LP | 178,554 | $3.12M | 0.20% | −35,488−16.6% | Reduced |
| California State Teachers Retirement System | 180,247 | $3.15M | 0.00% | −1,994−1.1% | Reduced |
| Citigroup Inc | 187,323 | $3.27M | 0.00% | +12,774+7.3% | Added |
| SEI Investments Co | 187,918 | $3.28M | 0.00% | +187,918 | New |
| Bank of America Corp | 201,730 | $3.52M | 0.00% | −33,302−14.2% | Reduced |
| Hollow Brook Wealth Management LLC | 210,381 | $3.67M | 1.13% | −6,797−3.1% | Reduced |
| Alliancebernstein L.P. | 216,499 | $3.78M | 0.00% | −4,158−1.9% | Reduced |
| Legal & General Group Plc | 219,698 | $3.83M | 0.00% | +25,887+13.4% | Added |
| Emerald Mutual Fund Advisers Trust | 226,679 | $3.96M | 0.24% | +226,679 | New |
| Advantage Alpha Capital Partners LP | 235,565 | $4.11M | 0.97% | +235,565 | New |
| Marshall Wace, LLP | 239,439 | $4.18M | 0.01% | +177,643+287.5% | Added |
| Bridgewater Associates, LP | 243,755 | $4.25M | 0.02% | +243,755 | New |
| Scopus Asset Management, L.P. | 246,060 | $4.29M | 0.16% | +246,060 | New |
| Verition Fund Management LLC | 250,048 | $4.36M | 0.02% | +61,838+32.9% | Added |
| Schonfeld Strategic Advisors LLC | 252,686 | $4.41M | 0.03% | +252,686 | New |
| EAM Investors, LLC | 257,777 | $4.50M | 0.64% | +257,777 | New |
| Rice Hall James & Associates, LLC | 270,525 | $4.72M | 0.26% | −82,212−23.3% | Reduced |
| Lazard Asset Management LLC | 278,817 | $4.87M | 0.01% | −129,220−31.7% | Reduced |
| Paradoxiom Capital L.P. | 280,335 | $4.89M | 2.02% | +280,335 | New |
| EAM Global Investors LLC | 282,534 | $4.93M | 0.88% | +282,534 | New |
| Wells Fargo & Company | 294,798 | $5.14M | 0.00% | +69,030+30.6% | Added |
| Walleye Trading LLC | 296,844 | $5.18M | 0.10% | +296,844 | New |
| FMR LLC | 302,289 | $5.27M | 0.00% | +284,332+1,583.4% | Added |
| Essex Investment Management Co LLC | 304,255 | $5.31M | 0.95% | −47,223−13.4% | Reduced |
| Deutsche Bank AG | 311,446 | $5.43M | 0.00% | +141,008+82.7% | Added |
| Rhumbline Advisers | 318,467 | $5.56M | 0.00% | +8,288+2.7% | Added |
| D. E. Shaw & Co., Inc. | 319,544 | $5.58M | 0.01% | +319,544 | New |
| Duquesne Family Office LLCSuperinvestorDuquesne Family Office | 342,700 | $5.98M | 0.17% | +342,700 | New |
| Barclays PLC | 353,322 | $6.17M | 0.00% | +45,642+14.8% | Added |
| Discovery Capital Management, LLC | 360,000 | $6.28M | 0.43% | +360,000 | New |
| Aperture Investors, LLC | 371,570 | $6.48M | 0.84% | +2,344+0.6% | Added |
| Swiss National Bank | 376,800 | $6.58M | 0.00% | +2,000+0.5% | Added |
| UBS Asset Management Americas Inc | 399,610 | $6.97M | 0.00% | +106,773+36.5% | Added |
| Kingdon Capital Management, L.L.C. | 400,000 | $6.98M | 1.19% | +400,000 | New |
| TD Asset Management Inc | 407,132 | $7.10M | 0.01% | +18,176+4.7% | Added |
| Nicholas Investment Partners, LP | 431,354 | $7.53M | 0.66% | −6,811−1.6% | Reduced |
| Royce & Associates LP | 453,000 | $7.90M | 0.07% | −31,000−6.4% | Reduced |
| Trexquant Investment LP | 453,544 | $7.91M | 0.09% | +453,544 | New |
| Ensign Peak Advisors, Inc | 472,221 | $8.24M | 0.01% | +472,221 | New |
| Segall Bryant & Hamill, LLC | 474,583 | $8.28M | 0.11% | +134,909+39.7% | Added |
| Qube Research & Technologies Ltd | 476,119 | $8.31M | 0.01% | −145,606−23.4% | Reduced |
| Invesco Ltd. | 490,814 | $8.56M | 0.00% | +226,566+85.7% | Added |
| Arosa Capital Management LP | 493,000 | $8.60M | 5.66% | +493,000 | New |
| Telemark Asset Management, LLC | 500,000 | $8.72M | 0.87% | +100,000+25.0% | Added |
| Allspring Global Investments Holdings, LLC | 520,692 | $8.81M | 0.01% | +488,790+1,532.2% | Added |
| Jennison Associates LLC | 514,314 | $8.97M | 0.01% | +48,761+10.5% | Added |
| Gabelli Funds LLC | 556,688 | $9.71M | 0.07% | −60,000−9.7% | Reduced |
| Sandler Capital Management | 572,451 | $9.99M | 1.63% | +227,451+65.9% | Added |
| JPMorgan Chase & Co | 598,048 | $10.4M | 0.00% | +377,915+171.7% | Added |
| Gamco Investors, Inc. Et Al | 599,634 | $10.5M | 0.11% | −35,136−5.5% | Reduced |
| Emerald Advisers, LLC | 607,991 | $10.6M | 0.41% | +607,991 | New |
| Pier Capital, LLC | 657,957 | $11.5M | 1.64% | +657,957 | New |
| Ci Investments Inc. | 659,720 | $11.5M | 0.04% | +659,720 | New |
| Bank of New York Mellon Corp | 661,429 | $11.5M | 0.00% | +13,248+2.0% | Added |
| Schroder Investment Management Group | 675,084 | $11.8M | 0.01% | +675,084 | New |
| Greenhouse Funds LLLP | 700,623 | $12.2M | 0.54% | +700,623 | New |
| Silvercrest Asset Management Group LLC | 968,561 | $16.9M | 0.11% | +968,561 | New |
| Raymond James Financial Inc | 983,610 | $17.2M | 0.01% | +983,610 | New |
| Masters Capital Management LLC | 1,000,000 | $17.4M | 2.98% | +1,000,000 | New |
| Morgan Stanley | 1,048,820 | $18.3M | 0.00% | +179,618+20.7% | Added |
| Munro Partners | 1,122,215 | $19.6M | 0.68% | +1,122,215 | New |
| Chescapmanager LLC | 1,327,895 | $23.2M | 4.22% | +286,494+27.5% | Added |
| Schwartz Investment Counsel Inc | 1,349,300 | $23.5M | 0.85% | −170,000−11.2% | Reduced |
| Nuveen Asset Management, LLC | 1,371,004 | $23.9M | 0.01% | +577,620+72.8% | Added |
| UBS Group AG | 1,546,481 | $27.0M | 0.01% | +902,024+140.0% | Added |
| Charles Schwab Investment Management Inc | 1,599,211 | $27.9M | 0.01% | +39,635+2.5% | Added |
| ACK Asset Management LLC | 1,815,000 | $31.7M | 4.24% | −2,431,300−57.3% | Reduced |
| FIL Ltd | 2,010,893 | $35.1M | 0.03% | −500,000−19.9% | Reduced |