Mirion TechnologiesMIR
13F holders, Q3 2024 (September 30)176holders +21
34new positions
13sold out
8famous investors
$11.08avg. 13F price*
At the end of Q3 2024, 176 institutions reported holding Mirion Technologies Inc. (MIR) in their 13F filings, up 21 from Q2 2024. 34 opened new positions and 13 sold out. The largest holders were Goldman Sachs Group Inc. ($385.3M), Vanguard Group Inc. ($262.2M) and T. Rowe Price Investment Management, Inc. ($223.3M). 8 famous investors held it, including Leon Cooperman (3.8% of Omega Advisors (Leon Cooperman)'s portfolio), Mario Gabelli (0.1% of GAMCO Investors's portfolio) and Lee Ainslie (0.0% of Maverick Capital's portfolio).
- Company
- Mirion Technologies Inc.
- CUSIP
- 60471A101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 34 | $42.8M |
| Exits | 13 | $12.9M |
All 13F filers, Q2 2024 → Q3 2024: 16,991,855 shares bought and 9,312,135 shares sold, net +7,679,720 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 176 holders
| Goldman Sachs Group Inc. | 0.07% | Reduce -8.3% | 34,809,020 | $385.3M |
| Vanguard Group Inc. | 0.00% | Add +8.2% | 23,682,624 | $262.2M |
| T. Rowe Price Investment Management, Inc. | 0.13% | Add +0.9% | 20,171,888 | $223.3M |
| BlackRock, Inc. | 0.00% | — | 15,972,920 | $176.8M |
| Swedbank AB | 0.14% | Reduce -1.6% | 10,219,000 | $113.1M |
| Janus Henderson Group PLC | 0.05% | Reduce -6.7% | 8,100,777 | $89.7M |
| Omega Advisors (Leon Cooperman) | 3.77% | Add +0.3% | 8,025,000 | $88.8M |
| Alyeska Investment Group, L.P. | 0.44% | Add +12.1% | 7,818,626 | $86.6M |
| Dimensional Fund Advisors LP | 0.02% | Add +14.8% | 7,013,776 | $77.6M |
| State Street Corp. | 0.00% | Add +2.6% | 5,365,728 | $59.4M |
| Geode Capital Management, LLC | 0.00% | Add +3.4% | 4,502,455 | $49.9M |
| Select Equity Group, L.P. | 0.17% | Reduce -25.4% | 4,317,704 | $47.8M |
| ACK Asset Management LLC | 5.81% | Add +28.8% | 4,246,300 | $47.0M |
| American Century Companies Inc. | 0.02% | Reduce -3.3% | 3,812,596 | $42.2M |
| Adage Capital Partners Gp, L.L.C. | 0.07% | Add +11.6% | 3,620,674 | $40.1M |
| P2 Capital Partners, LLC | 4.23% | Reduce -28.7% | 3,350,000 | $37.1M |
| Corsair Capital Management, L.P. | 8.28% | Add +83.9% | 3,160,850 | $35.0M |
| ArrowMark Colorado Holdings LLC | 0.43% | Add +8.8% | 3,000,060 | $33.2M |
| FIL Ltd | 0.03% | Add +569.0% | 2,510,893 | $27.8M |
| Northern Trust Corp. | 0.00% | Add +3.4% | 1,713,425 | $19.0M |
| First Manhattan Co. Llc. | 0.06% | Reduce -1.0% | 1,706,517 | $18.9M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +2.5% | 1,559,576 | $17.3M |
| Millennium Management | 0.02% | Add +190.2% | 1,548,297 | $17.1M |
| Schwartz Investment Counsel Inc. | 0.60% | No change | 1,519,300 | $16.8M |
| Lord, Abbett & Co. LLC | 0.05% | Reduce -3.8% | 1,387,535 | $15.4M |
| Chescapmanager LLC | 1.94% | Add +0.7% | 1,041,401 | $11.5M |
| Crestline Management, L.P. | 0.59% | Add +16.3% | 941,649 | $10.4M |
| Morgan Stanley | 0.00% | Add +48.7% | 869,202 | $9.6M |
| Nuveen Asset Management, LLC | 0.00% | Add +1.6% | 793,384 | $8.8M |
| Eagle Asset Management Inc. | 0.04% | Add +60.6% | 505,247 | $7.8M |
| Bank of New York Mellon Corp | 0.00% | Reduce -20.6% | 648,181 | $7.2M |
| UBS Group AG | 0.00% | Add +51.7% | 644,457 | $7.1M |
| GAMCO Investors | 0.07% | Reduce -13.7% | 634,770 | $7.0M |
| Qube Research & Technologies Ltd | 0.01% | Add +288.3% | 621,725 | $6.9M |
| Gabelli Funds LLC | 0.05% | Reduce -6.8% | 616,688 | $6.8M |
| Moore Capital Management, LP | 0.21% | New | 598,170 | $6.6M |
| Royce & Associates LP | 0.05% | Add +0.8% | 484,000 | $5.4M |
| Freshford Capital Management, LLC | 1.65% | New | 475,801 | $5.3M |
| Jennison Associates LLC | 0.00% | Add +548.4% | 465,553 | $5.2M |
| Nicholas Investment Partners, LP | 0.50% | Reduce -9.9% | 438,165 | $4.9M |
| Shellback Capital, LP | 0.37% | New | 408,810 | $4.5M |
| Lazard Asset Management LLC | 0.01% | Add +4.0% | 408,037 | $4.5M |
| Telemark Asset Management, LLC | 0.45% | New | 400,000 | $4.4M |
| TD Asset Management Inc | 0.00% | Add +2.8% | 388,956 | $4.3M |
| Roubaix Capital, LLC | 2.35% | New | 385,130 | $4.3M |
| Swiss National Bank | 0.00% | Add +9.1% | 374,800 | $4.1M |
| Aperture Investors, LLC | 0.52% | Add +67.8% | 369,226 | $4.1M |
| Rice Hall James & Associates, LLC | 0.21% | Add +59.4% | 352,737 | $3.9M |
| Essex Investment Management Co. LLC | 0.68% | Add +0.3% | 351,478 | $3.9M |
| Sandler Capital Management | 0.74% | New | 345,000 | $3.8M |
| Segall Bryant & Hamill, LLC | 0.05% | Reduce -3.9% | 339,674 | $3.8M |
| Rhumbline Advisers | 0.00% | Reduce -4.7% | 310,179 | $3.4M |
| Barclays PLC | 0.00% | Add +325.0% | 307,680 | $3.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -11.1% | 292,837 | $3.2M |
| First Trust Advisors LP | 0.00% | Reduce -7.7% | 264,946 | $2.9M |
| Invesco Ltd. | 0.00% | Add +6.3% | 264,248 | $2.9M |
| Portolan Capital Management, LLC | 0.19% | New | 236,975 | $2.6M |
| Bank of America Corp. | 0.00% | Add +25.9% | 235,032 | $2.6M |
| Wells Fargo & Company | 0.00% | Add +22.8% | 225,768 | $2.5M |
| Alliancebernstein L.P. | 0.00% | Add +1.2% | 220,657 | $2.4M |
| JPMorgan Chase & Co. | 0.00% | Reduce -37.0% | 220,133 | $2.4M |
| Hollow Brook Wealth Management LLC | 0.71% | Add +4.6% | 217,178 | $2.4M |
| Yaupon Capital Management LP | 0.16% | New | 214,042 | $2.4M |
| M&T Bank Corp | 0.01% | Add +0.0% | 200,228 | $2.2M |
| Alberta Investment Management Corp | 0.02% | Add +15.4% | 193,999 | $2.1M |
| Legal & General Group Plc | 0.00% | Add +15.2% | 193,811 | $2.1M |
| Squarepoint Ops LLC | 0.01% | Add +24.7% | 189,614 | $2.1M |
| Verition Fund Management LLC | 0.02% | New | 188,210 | $2.1M |
| Maverick Capital | 0.04% | Add +14.8% | 183,427 | $2.0M |
| California State Teachers Retirement System | 0.00% | Add +5.7% | 182,241 | $2.0M |
| Legato Capital Management LLC | 0.25% | No change | 181,968 | $2.0M |
| State of New Jersey Common Pension Fund D | 0.01% | Add +2.3% | 179,998 | $2.0M |
| Citigroup Inc. | 0.00% | Add +63.8% | 174,549 | $1.9M |
| Deutsche Bank AG | 0.00% | Add +21.9% | 170,438 | $1.9M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -18.4% | 163,766 | $1.8M |
| New York State Common Retirement Fund | 0.00% | Reduce -12.9% | 132,415 | $1.5M |
| Ardsley Advisory Partners LP | 0.26% | Add +25.0% | 125,000 | $1.4M |
| Jane Street Group, LLC | 0.00% | Reduce -71.6% | 123,640 | $1.4M |
| T. Rowe Price Associates Inc. | 0.00% | Add +4.7% | 123,366 | $1.4M |
| MetLife Investment Management, LLC | 0.01% | No change | 117,259 | $1.3M |
| Renaissance Technologies | 0.00% | Reduce -35.1% | 113,000 | $1.3M |
| Concentric Capital Strategies, LP | 0.08% | New | 111,517 | $1.2M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +6.7% | 109,395 | $1.2M |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -1.1% | 108,757 | $1.2M |
| Corebridge Financial, Inc. | 0.01% | Reduce -0.6% | 106,860 | $1.2M |
| Cinctive Capital Management LP | 0.05% | New | 85,313 | $944K |
| State of Wyoming | 0.13% | Add +2002.4% | 82,624 | $915K |
| MYDA Advisors LLC | 0.25% | New | 80,000 | $886K |
| Boston Partners | 0.00% | Reduce -37.1% | 79,931 | $885K |
| Tudor Investment Corporation | 0.01% | No change | 65,499 | $725K |
| Voya Investment Management LLC | 0.00% | Reduce -2.4% | 65,479 | $725K |
| Marshall Wace, LLP | 0.00% | New | 61,796 | $684K |
| Oppenheimer & Co. Inc. | 0.01% | Add +4.7% | 58,260 | $645K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 57,210 | $633K |
| Arizona State Retirement System | 0.00% | Add +12.9% | 55,290 | $612K |
| Handelsbanken Fonder AB | 0.00% | Add +17.9% | 55,231 | $611K |
| Intech Investment Management LLC | 0.01% | New | 52,641 | $583K |
| Teacher Retirement System of Texas | 0.00% | Reduce -10.1% | 42,218 | $467K |
| ProShare Advisors LLC | 0.00% | Add +40.6% | 37,765 | $418K |
| PNC Financial Services Group, Inc. | 0.00% | Add +2.7% | 34,462 | $381K |
"% of holder's portfolio" is MIR's weight in each manager's 13F, not the share of Mirion Technologies Inc. the manager owns.