Mirion TechnologiesMIR
13F holders, Q4 2024 (December 31)224holders +48
63new positions
23sold out
11famous investors
$17.45avg. 13F price*
At the end of Q4 2024, 224 institutions reported holding Mirion Technologies Inc. (MIR) in their 13F filings, up 48 from Q3 2024. 63 opened new positions and 23 sold out. The largest holders were Vanguard Group Inc. ($417.2M), T. Rowe Price Investment Management, Inc. ($355.8M) and BlackRock, Inc. ($281.0M). 11 famous investors held it, including Leon Cooperman (4.6% of Omega Advisors (Leon Cooperman)'s portfolio), Lee Ainslie (1.9% of Maverick Capital's portfolio) and Stanley Druckenmiller (0.2% of Duquesne Family Office's portfolio).
- Company
- Mirion Technologies Inc.
- CUSIP
- 60471A101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 63 | $422.3M |
| Exits | 23 | $67.3M |
All 13F filers, Q3 2024 → Q4 2024: 43,530,843 shares bought and 55,697,136 shares sold, net −12,166,293 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 224 holders
| Vanguard Group Inc. | 0.01% | Add +1.0% | 23,909,802 | $417.2M |
| T. Rowe Price Investment Management, Inc. | 0.22% | Add +1.1% | 20,388,146 | $355.8M |
| BlackRock, Inc. | 0.01% | Add +0.8% | 16,102,061 | $281.0M |
| Goldman Sachs Group Inc. | 0.03% | Reduce -74.5% | 8,875,458 | $154.9M |
| Janus Henderson Group PLC | 0.07% | Add +2.8% | 8,330,495 | $145.4M |
| Dimensional Fund Advisors LP | 0.03% | Add +2.5% | 7,185,694 | $125.4M |
| Omega Advisors (Leon Cooperman) | 4.64% | Reduce -12.5% | 7,025,000 | $122.6M |
| Maverick Capital | 1.94% | Add +3267.9% | 6,177,611 | $107.8M |
| Swedbank AB | 0.13% | Reduce -40.7% | 6,060,500 | $105.8M |
| State Street Corp. | 0.00% | Reduce -3.1% | 5,201,092 | $90.8M |
| Geode Capital Management, LLC | 0.01% | Add +1.5% | 4,571,828 | $79.8M |
| Arrowstreet Capital, Limited Partnership | 0.06% | Add +29948.6% | 4,214,921 | $73.6M |
| Brown Advisory Inc. | 0.08% | New | 3,812,024 | $66.5M |
| Alyeska Investment Group, L.P. | 0.25% | Reduce -51.9% | 3,761,315 | $65.6M |
| Corsair Capital Management, L.P. | 11.91% | Add +0.3% | 3,169,620 | $55.3M |
| Millennium Management | 0.05% | Add +100.6% | 3,105,374 | $54.2M |
| William Blair Investment Management, LLC | 0.13% | New | 3,041,016 | $53.1M |
| American Century Companies Inc. | 0.02% | Reduce -37.4% | 2,385,033 | $41.6M |
| Lord, Abbett & Co. LLC | 0.14% | Add +70.7% | 2,368,734 | $41.3M |
| ArrowMark Colorado Holdings LLC | 0.56% | Reduce -21.1% | 2,368,550 | $41.3M |
| Select Equity Group, L.P. | 0.16% | Reduce -46.4% | 2,313,419 | $40.4M |
| Artemis Investment Management LLP | 0.54% | New | 2,186,553 | $38.2M |
| Bornite Capital Management LP | 4.97% | New | 2,117,000 | $36.9M |
| Northern Trust Corp. | 0.01% | Add +19.1% | 2,041,589 | $35.6M |
| FIL Ltd | 0.03% | Reduce -19.9% | 2,010,893 | $35.1M |
| ACK Asset Management LLC | 4.24% | Reduce -57.3% | 1,815,000 | $31.7M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +2.5% | 1,599,211 | $27.9M |
| UBS Group AG | 0.01% | Add +140.0% | 1,546,481 | $27.0M |
| Nuveen Asset Management, LLC | 0.01% | Add +72.8% | 1,371,004 | $23.9M |
| Schwartz Investment Counsel Inc. | 0.85% | Reduce -11.2% | 1,349,300 | $23.5M |
| Chescapmanager LLC | 4.22% | Add +27.5% | 1,327,895 | $23.2M |
| Munro Partners | 0.68% | New | 1,122,215 | $19.6M |
| Morgan Stanley | 0.00% | Add +20.7% | 1,048,820 | $18.3M |
| Masters Capital Management LLC | 2.98% | New | 1,000,000 | $17.4M |
| Raymond James Financial Inc. | 0.01% | — | 983,610 | $17.2M |
| Silvercrest Asset Management Group LLC | 0.11% | New | 968,561 | $16.9M |
| Greenhouse Funds LLLP | 0.54% | New | 700,623 | $12.2M |
| Schroder Investment Management Group | 0.01% | New | 675,084 | $11.8M |
| Bank of New York Mellon Corp | 0.00% | Add +2.0% | 661,429 | $11.5M |
| CI Investments Inc. | 0.04% | New | 659,720 | $11.5M |
| Pier Capital, LLC | 1.64% | New | 657,957 | $11.5M |
| Emerald Advisers, LLC | 0.41% | New | 607,991 | $10.6M |
| GAMCO Investors | 0.11% | Reduce -5.5% | 599,634 | $10.5M |
| JPMorgan Chase & Co. | 0.00% | Add +171.7% | 598,048 | $10.4M |
| Sandler Capital Management | 1.64% | Add +65.9% | 572,451 | $10.0M |
| Gabelli Funds LLC | 0.07% | Reduce -9.7% | 556,688 | $9.7M |
| Jennison Associates LLC | 0.01% | Add +10.5% | 514,314 | $9.0M |
| Allspring Global Investments Holdings, LLC | 0.01% | Add +1532.2% | 520,692 | $8.8M |
| Telemark Asset Management, LLC | 0.87% | Add +25.0% | 500,000 | $8.7M |
| Arosa Capital Management LP | 5.73% | New | 493,000 | $8.6M |
| Invesco Ltd. | 0.00% | Add +85.7% | 490,814 | $8.6M |
| Qube Research & Technologies Ltd | 0.01% | Reduce -23.4% | 476,119 | $8.3M |
| Segall Bryant & Hamill, LLC | 0.11% | Add +39.7% | 474,583 | $8.3M |
| Ensign Peak Advisors, Inc | 0.01% | New | 472,221 | $8.2M |
| Trexquant Investment LP | 0.09% | New | 453,544 | $7.9M |
| Royce & Associates LP | 0.07% | Reduce -6.4% | 453,000 | $7.9M |
| Nicholas Investment Partners, LP | 0.73% | Reduce -1.6% | 431,354 | $7.5M |
| TD Asset Management Inc | 0.01% | Add +4.7% | 407,132 | $7.1M |
| Kingdon Capital Management, L.L.C. | 1.19% | New | 400,000 | $7.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +36.5% | 399,610 | $7.0M |
| Swiss National Bank | 0.00% | Add +0.5% | 376,800 | $6.6M |
| Aperture Investors, LLC | 0.84% | Add +0.6% | 371,570 | $6.5M |
| Discovery Capital Management, LLC / CT | 0.43% | New | 360,000 | $6.3M |
| Barclays PLC | 0.00% | Add +14.8% | 353,322 | $6.2M |
| Duquesne Family Office | 0.17% | New | 342,700 | $6.0M |
| D. E. Shaw & Co. | 0.01% | New | 319,544 | $5.6M |
| Rhumbline Advisers | 0.01% | Add +2.7% | 318,467 | $5.6M |
| Deutsche Bank AG | 0.00% | Add +82.7% | 311,446 | $5.4M |
| Essex Investment Management Co. LLC | 0.95% | Reduce -13.4% | 304,255 | $5.3M |
| FMR LLC | 0.00% | Add +1583.4% | 302,289 | $5.3M |
| Walleye Trading LLC | 0.10% | New | 296,844 | $5.2M |
| Wells Fargo & Company | 0.00% | Add +30.6% | 294,798 | $5.1M |
| Global IMC LLC | 0.88% | New | 282,534 | $4.9M |
| Paradoxiom Capital L.P. | 2.02% | — | 280,335 | $4.9M |
| Lazard Asset Management LLC | 0.01% | Reduce -31.7% | 278,817 | $4.9M |
| Rice Hall James & Associates, LLC | 0.26% | Reduce -23.3% | 270,525 | $4.7M |
| Informed Momentum Co LLC | 0.64% | New | 257,777 | $4.5M |
| Schonfeld Strategic Advisors LLC | 0.03% | New | 252,686 | $4.4M |
| Verition Fund Management LLC | 0.02% | Add +32.9% | 250,048 | $4.4M |
| Scopus Asset Management, L.P. | 0.16% | New | 246,060 | $4.3M |
| Bridgewater Associates | 0.02% | New | 243,755 | $4.3M |
| Marshall Wace, LLP | 0.01% | Add +287.5% | 239,439 | $4.2M |
| Advantage Alpha Capital Partners LP | 0.97% | New | 235,565 | $4.1M |
| Emerald Mutual Fund Advisers Trust | 0.24% | New | 226,679 | $4.0M |
| Legal & General Group Plc | 0.00% | Add +13.4% | 219,698 | $3.8M |
| Alliancebernstein L.P. | 0.00% | Reduce -1.9% | 216,499 | $3.8M |
| Hollow Brook Wealth Management LLC | 1.13% | Reduce -3.1% | 210,381 | $3.7M |
| Bank of America Corp. | 0.00% | Reduce -14.2% | 201,730 | $3.5M |
| Sei Investments Co. | 0.00% | New | 187,918 | $3.3M |
| Citigroup Inc. | 0.00% | Add +7.3% | 187,323 | $3.3M |
| California State Teachers Retirement System | 0.00% | Reduce -1.1% | 180,247 | $3.1M |
| Yaupon Capital Management LP | 0.20% | Reduce -16.6% | 178,554 | $3.1M |
| Polar Asset Management Partners Inc. | 0.06% | New | 174,919 | $3.1M |
| Tudor Investment Corporation | 0.03% | Add +153.2% | 165,866 | $2.9M |
| Wolverine Asset Management LLC | 0.21% | New | 162,000 | $2.8M |
| M&T Bank Corp | 0.01% | Reduce -20.0% | 160,116 | $2.8M |
| HRT Financial LP | 0.01% | New | 155,399 | $2.7M |
| Alberta Investment Management Corp | 0.02% | Reduce -20.5% | 154,160 | $2.7M |
| Legato Capital Management LLC | 0.33% | Reduce -20.1% | 145,470 | $2.5M |
| Renaissance Technologies | 0.00% | Add +28.3% | 145,014 | $2.5M |
| Adage Capital Partners Gp, L.L.C. | 0.00% | Reduce -96.1% | 140,958 | $2.5M |
| T. Rowe Price Associates Inc. | 0.00% | Add +13.7% | 140,276 | $2.4M |
| Roubaix Capital, LLC | 1.14% | Reduce -64.5% | 136,640 | $2.4M |
| State of New Jersey Common Pension Fund D | 0.01% | Reduce -28.3% | 129,100 | $2.3M |
| New York State Common Retirement Fund | 0.00% | Reduce -5.3% | 125,422 | $2.2M |
| Ardsley Advisory Partners LP | 0.42% | No change | 125,000 | $2.2M |
| MetLife Investment Management, LLC | 0.01% | Add +5.9% | 124,137 | $2.2M |
| First Manhattan Co. Llc. | 0.01% | Reduce -93.0% | 120,157 | $2.1M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +7.5% | 117,596 | $2.1M |
| Citadel Advisors | 0.00% | Add +378.2% | 111,237 | $1.9M |
| First Trust Advisors LP | 0.00% | Reduce -58.8% | 109,257 | $1.9M |
| Graham Capital Management, L.P. | 0.09% | New | 107,748 | $1.9M |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -1.5% | 107,132 | $1.9M |
| State of Wyoming | 0.23% | Add +26.8% | 104,750 | $1.8M |
| Walleye Capital LLC | 0.02% | New | 103,151 | $1.8M |
| Corebridge Financial, Inc. | 0.01% | Reduce -3.9% | 102,702 | $1.8M |
| CastleKnight Management LP | 0.20% | New | 99,900 | $1.7M |
| Nomura Holdings Inc. | 0.01% | New | 97,824 | $1.7M |
| Bryce Point Capital, LLC | 0.49% | — | 95,998 | $1.7M |
| Ameriprise Financial Inc. | 0.00% | New | 93,322 | $1.6M |
| Intech Investment Management LLC | 0.02% | Add +76.2% | 92,734 | $1.6M |
| Susquehanna International Group, LLP | 0.00% | Add +240.4% | 89,825 | $1.6M |
| Exchange Traded Concepts, LLC | 0.03% | Add +291.4% | 88,830 | $1.6M |
| AQR Capital Management | 0.00% | New | 88,812 | $1.5M |
| Sterling Capital Management LLC | 0.02% | Add +13457.7% | 84,871 | $1.5M |
| Wolverine Trading, LLC | 0.03% | New | 69,607 | $1.2M |
| Handelsbanken Fonder AB | 0.00% | Add +10.5% | 61,031 | $1.1M |
| Voya Investment Management LLC | 0.00% | Reduce -7.9% | 60,308 | $1.1M |
| Moore Capital Management, LP | 0.02% | Reduce -90.0% | 59,817 | $1.0M |
| Cresset Asset Management, LLC | 0.00% | New | 58,500 | $1.0M |
| ProShare Advisors LLC | 0.00% | Add +54.1% | 58,179 | $1.0M |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 57,210 | $998K |
| Arizona State Retirement System | 0.01% | Add +0.6% | 55,606 | $970K |
| Squarepoint Ops LLC | 0.00% | Reduce -71.2% | 54,528 | $952K |
| Engineers Gate Manager LP | 0.01% | New | 48,932 | $854K |
| Police & Firemen's Retirement System of New Jersey | 0.01% | — | 44,108 | $770K |
| Counterpoint Mutual Funds LLC | 0.10% | New | 44,022 | $768K |
| Group One Trading LLC | 0.03% | New | 43,240 | $755K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +36.6% | 38,387 | $670K |
| Pathstone Holdings, LLC | 0.00% | Add +42.4% | 38,238 | $667K |
| KLP Kapitalforvaltning As | 0.00% | — | 37,500 | $654K |
| Balyasny Asset Management L.P. | 0.00% | New | 36,502 | $637K |
| Susquehanna Fundamental Investments, LLC | 0.01% | — | 36,400 | $635K |
| Campbell & CO Investment Adviser LLC | 0.05% | Add +184.1% | 35,597 | $621K |
| Oppenheimer & Co. Inc. | 0.01% | Reduce -39.6% | 35,163 | $614K |
| Pictet Asset Management Holding SA | 0.00% | Add +14.2% | 28,114 | $491K |
| Royal Bank of Canada | 0.00% | Add +2.6% | 27,587 | $482K |
| BNP Paribas Financial Markets | 0.00% | New | 27,520 | $480K |
| Victory Capital Management Inc. | 0.00% | Add +0.7% | 27,476 | $479K |
| PNC Financial Services Group, Inc. | 0.00% | Reduce -24.2% | 26,133 | $456K |
| State of Wisconsin Investment Board | 0.00% | Reduce -20.5% | 25,896 | $452K |
| Jain Global LLC | 0.01% | — | 25,665 | $448K |
| HSBC Holdings PLC | 0.00% | Reduce -4.3% | 24,029 | $421K |
| Simon Quick Advisors, LLC | 0.03% | Add +49.6% | 24,054 | $420K |
| Occudo Quantitative Strategies LP | 0.07% | New | 22,566 | $394K |
| XTX Topco Ltd | 0.03% | Reduce -17.7% | 22,553 | $394K |
| Y-Intercept (Hong Kong) Ltd | 0.03% | New | 22,551 | $394K |
| Gilder Gagnon Howe & Co. LLC | 0.00% | New | 22,234 | $388K |
| Mackenzie Financial Corp. | 0.00% | Add +73.6% | 21,908 | $382K |
| Ameritas Investment Partners, Inc. | 0.01% | Add +10.4% | 21,611 | $377K |
| Jane Street Group, LLC | 0.00% | Reduce -83.3% | 20,679 | $361K |
| Creative Planning | 0.00% | Add +88.6% | 20,300 | $354K |
| Mariner, LLC | 0.00% | Reduce -0.1% | 20,041 | $350K |
| Envestnet Asset Management Inc. | 0.00% | Add +4.7% | 19,386 | $338K |
| Cibc World Markets Corp. | 0.00% | New | 19,332 | $337K |
| STRS Ohio | 0.00% | New | 19,300 | $337K |
| Integrated Advisors Network LLC | 0.02% | Add +70.5% | 18,491 | $323K |
| Diametric Capital, LP | 0.20% | New | 16,557 | $289K |
| Teacher Retirement System of Texas | 0.00% | Reduce -62.5% | 15,832 | $276K |
| Xponance LLC | 0.00% | Add +15.9% | 14,942 | $261K |
| Prudential Financial Inc. | 0.00% | No change | 14,695 | $256K |
| Bantamac Capital, LLC | 0.11% | New | 13,762 | $240K |
| Truist Financial Corp. | 0.00% | Add +0.6% | 13,682 | $239K |
| Sanctuary Advisors, LLC | 0.00% | Reduce -2.7% | 14,913 | $236K |
| Principal Financial Group Inc. | 0.00% | Reduce -16.9% | 12,237 | $214K |
| LPL Financial LLC | 0.00% | New | 12,106 | $211K |
| Landscape Capital Management, L.L.C. | 0.02% | Reduce -9.7% | 11,960 | $209K |
| Longboard Asset Management, LP | 0.54% | — | 11,594 | $202K |
| Corient Private Wealth LP | 0.00% | New | 10,700 | $187K |
| SkyView Investment Advisors, LLC | 0.03% | No change | 10,000 | $175K |
| KBC Group NV | 0.00% | Add +39.2% | 8,002 | $140K |
| Amalgamated Bank | 0.00% | No change | 7,038 | $123K |
| Harvest Fund Management Co., Ltd | 0.01% | New | 6,858 | $120K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +162.9% | 6,649 | $116K |
| US Bancorp \de | 0.00% | Add +3248.7% | 6,262 | $109K |
| Central Pacific Bank - Trust Division | 0.01% | Reduce -34.2% | 5,000 | $87K |
| Nisa Investment Advisors, LLC | 0.00% | Add +7.0% | 2,796 | $49K |
| Parallel Advisors, LLC | 0.00% | Add +13.3% | 1,735 | $30K |
| Comerica Bank | 0.00% | Add +17.4% | 1,246 | $22K |
| Optiver Holding B.V. | 0.00% | Add +76.8% | 1,123 | $20K |
| Bessemer Group Inc. | 0.00% | New | 1,110 | $19K |
| Quadrant Capital Group LLC | 0.00% | Add +27.8% | 988 | $17K |
| Clearstead Advisors, LLC | 0.00% | Add +26.2% | 924 | $16K |
| Osaic Holdings, Inc. | 0.00% | Add +23.2% | 902 | $16K |
| Aster Capital Management (DIFC) Ltd | 0.01% | New | 855 | $15K |
| Smartleaf Asset Management LLC | 0.00% | Add +134.8% | 763 | $13K |
| Avion Wealth | 0.00% | No change | 620 | $10K |
| Cwm, LLC | 0.00% | Add +192.8% | 571 | $10K |
| Arax Advisory Partners | 0.00% | Add +9.2% | 438 | $8K |
| CIBC Private Wealth Group LLC | 0.00% | No change | 400 | $7K |
| GAMMA Investing LLC | 0.00% | Add +542.5% | 302 | $5K |
| Murphy & Mullick Capital Management Corp | 0.00% | — | 250 | $4K |
| Lindbrook Capital, LLC | 0.00% | No change | 206 | $4K |
| Avior Wealth Management, LLC | 0.00% | Reduce -9.4% | 202 | $4K |
| Blue Trust, Inc. | 0.00% | No change | 146 | $3K |
| Amundi | 0.00% | New | 135 | $2K |
| Parallax Volatility Advisers, L.P. | 0.00% | New | 120 | $2K |
| JFS Wealth Advisors, LLC | 0.00% | Add +28.2% | 109 | $2K |
| Bell Investment Advisors, Inc | 0.00% | No change | 103 | $2K |
| Steward Partners Investment Advisory, LLC | 0.00% | New | 100 | $2K |
| Allworth Financial LP | 0.00% | Reduce -17.9% | 92 | $2K |
| Ameriflex Group, Inc. | 0.00% | — | 94 | $1K |
| EverSource Wealth Advisors, LLC | 0.00% | New | 81 | $1K |
| Hemington Wealth Management | 0.00% | Add +119.2% | 114 | $1K |
| Neo Ivy Capital Management | 0.00% | New | 63 | $1K |
| SJS Investment Consulting Inc. | 0.00% | Reduce -15.7% | 43 | $751 |
| IFP Advisors, Inc | 0.00% | New | 12 | $209 |
| Global Financial Private Client, LLC | 0.00% | New | 11 | $192 |
| SBI Securities Co., Ltd. | 0.00% | — | 10 | $175 |
| Farther Finance Advisors, LLC | 0.00% | No change | 7 | $122 |
| Parkworth Wealth Management, Inc. | 0.00% | — | 6 | $105 |
| AlphaQuest LLC | 0.00% | Reduce -100.0% | 1 | $17 |
| FNY Investment Advisers, LLC | 0.00% | Reduce -90.9% | 10 | $0 |
| Covestor Ltd | 0.00% | No change | 13 | $0 |
"% of holder's portfolio" is MIR's weight in each manager's 13F, not the share of Mirion Technologies Inc. the manager owns.