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 2022
Institutional positions in Mirion Technologies, Inc. as of Sep 30, 2022. 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
- 121
- +7 vs. Q2 2022
- Shares held
- 170.6M
- +10.6M (+6.6%) vs. Q2 2022
- Total value
- $1.27B
- +$352.7M (+38.3%) vs. Q2 2022
- New holders
- 19
- 44 more added
- Sold out
- 12
- 36 more reduced
1 institution that held it in Q2 2022 haven't filed for Q3 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2022: 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 2022
Shares, value and share of portfolio for each institution holding Mirion Technologies, Inc.; share changes are against Q2 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Goldman Sachs Group Inc | 51,763,086 | $386.7M | 0.11% | −541,812−1.0% | Reduced |
| Alyeska Investment Group, L.P. | 12,698,498 | $94.9M | 1.11% | −925,656−6.8% | Reduced |
| Vanguard Group Inc | 12,490,947 | $93.3M | 0.00% | +1,753,745+16.3% | Added |
| Janus Henderson Group PLC | 11,760,615 | $87.9M | 0.07% | +8,986,071+323.9% | Added |
| BlackRock Inc. | 9,890,996 | $73.9M | 0.00% | +471,849+5.0% | Added |
| Swedbank AB | 8,974,502 | $67.0M | 0.16% | +751,700+9.1% | Added |
| FMR LLC | 8,785,947 | $65.6M | 0.01% | +216,746+2.5% | Added |
| Cooperman Leon G | 5,203,320 | $38.9M | 2.74% | 00.0% | Unchanged |
| Locust Wood Capital Advisers, LLC | 4,652,012 | $34.8M | 2.67% | −76,243−1.6% | Reduced |
| P2 Capital Partners, LLC | 4,128,425 | $30.8M | 3.81% | +545,354+15.2% | Added |
| State Street Corp | 3,675,048 | $27.5M | 0.00% | +407,454+12.5% | Added |
| Corsair Capital Management, L.P. | 3,267,441 | $24.4M | 10.82% | −186,835−5.4% | Reduced |
| Geode Capital Management, LLC | 2,288,628 | $17.1M | 0.00% | +206,281+9.9% | Added |
| ArrowMark Colorado Holdings LLC | 2,282,414 | $17.1M | 0.21% | +702,717+44.5% | Added |
| Senator Investment Group LP | 2,250,000 | $16.8M | 1.53% | −725,000−24.4% | Reduced |
| First Manhattan Co | 2,112,734 | $15.8M | 0.07% | +280,125+15.3% | Added |
| Morgan Stanley | 1,783,564 | $13.3M | 0.00% | +86,936+5.1% | Added |
| Sculptor Capital LP | 1,763,052 | $13.2M | 0.17% | 00.0% | Unchanged |
| Schwartz Investment Counsel Inc | 1,490,000 | $11.1M | 0.57% | 00.0% | Unchanged |
| Bpifrance SA | 1,286,446 | $9.61M | 0.37% | 00.0% | Unchanged |
| Barrow Hanley Mewhinney & Strauss LLC | 1,271,735 | $9.50M | 0.04% | +21,320+1.7% | Added |
| Northern Trust Corp | 1,192,614 | $8.91M | 0.00% | +11,687+1.0% | Added |
| Crestline Management, LP | 1,123,857 | $8.39M | 1.13% | −126,143−10.1% | Reduced |
| Charles Schwab Investment Management Inc | 922,422 | $6.89M | 0.00% | +108,083+13.3% | Added |
| Principal Financial Group Inc | 814,409 | $6.08M | 0.00% | +7,885+1.0% | Added |
| Ratan Capital Management LP | 803,347 | $6.00M | 14.23% | −219,023−21.4% | Reduced |
| Gabelli Funds LLC | 770,000 | $5.75M | 0.05% | +157,000+25.6% | Added |
| Clearline Capital LP | 761,753 | $5.69M | 0.79% | −109,844−12.6% | Reduced |
| Carlson Capital L P | 750,000 | $5.60M | 0.42% | −25,000−3.2% | Reduced |
| Lord, Abbett & Co. LLC | 624,482 | $4.67M | 0.02% | 00.0% | Unchanged |
| Bamco Inc | 558,304 | $4.17M | 0.01% | −635,600−53.2% | Reduced |
| Pentwater Capital Management LP | 550,000 | $4.11M | 0.06% | −25,000−4.3% | Reduced |
| Bank of New York Mellon Corp | 537,431 | $4.01M | 0.00% | +50,692+10.4% | Added |
| Ionic Capital Management LLC | 518,983 | $3.88M | 0.94% | +20,000+4.0% | Added |
| Roubaix Capital, LLC | 505,293 | $3.77M | 3.36% | +147,037+41.0% | Added |
| Artal Group S.A. | 500,000 | $3.73M | 0.19% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 477,991 | $3.57M | 0.00% | −12,156−2.5% | Reduced |
| Hudson Bay Capital Management LP | 330,416 | $2.47M | 0.03% | +291,392+746.7% | Added |
| Invenomic Capital Management LP | 328,310 | $2.45M | 0.21% | +328,310 | New |
| Swiss National Bank | 305,500 | $2.28M | 0.00% | 00.0% | Unchanged |
| Advisory Research Inc | 229,105 | $1.71M | 0.17% | −2,035−0.9% | Reduced |
| Rhumbline Advisers | 207,470 | $1.55M | 0.00% | +13,113+6.7% | Added |
| Gamco Investors, Inc. Et Al | 207,000 | $1.55M | 0.02% | +37,854+22.4% | Added |
| Resolute Capital Asset Partners LLC | 201,176 | $1.50M | 1.35% | +201,176 | New |
| Russell Investments Group, Ltd. | 199,619 | $1.49M | 0.00% | +73,168+57.9% | Added |
| Balyasny Asset Management LLC | 195,479 | $1.46M | 0.01% | 00.0% | Unchanged |
| Gyon Technologies Capital Management, LP | 172,450 | $1.29M | 0.40% | +172,450 | New |
| California State Teachers Retirement System | 165,725 | $1.24M | 0.00% | −3,319−2.0% | Reduced |
| MYDA Advisors LLC | 160,000 | $1.20M | 0.67% | −20,000−11.1% | Reduced |
| Alliancebernstein L.P. | 149,898 | $1.12M | 0.00% | +6,093+4.2% | Added |
| Alpha Paradigm Partners, LLC | 125,999 | $941.0K | 0.41% | −89,727−41.6% | Reduced |
| Royce & Associates LP | 125,000 | $934.0K | 0.01% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 121,142 | $905.0K | 0.00% | +8,073+7.1% | Added |
| M&T Bank Corp | 117,466 | $878.0K | 0.00% | +27,876+31.1% | Added |
| Invesco Ltd. | 112,855 | $843.0K | 0.00% | −3,719−3.2% | Reduced |
| CenterBook Partners LP | 112,479 | $840.0K | 0.16% | +32,922+41.4% | Added |
| Schonfeld Strategic Advisors LLC | 110,500 | $825.0K | 0.01% | +110,500 | New |
| UBS Asset Management Americas Inc | 109,926 | $821.1K | 0.00% | +10,626+10.7% | Added |
| Weiss Multi-Strategy Advisers LLC | 109,225 | $816.0K | 0.02% | +109,225 | New |
| New York State Common Retirement Fund | 96,360 | $720.0K | 0.00% | +1,160+1.2% | Added |
| Credit Suisse AG | 91,754 | $686.0K | 0.00% | +17,097+22.9% | Added |
| MetLife Investment Management | 73,950 | $552.4K | 0.00% | 00.0% | Unchanged |
| Boston Partners | 69,099 | $516.0K | 0.00% | +37,894+121.4% | Added |
| BNP Paribas Arbitrage, SA | 68,285 | $510.1K | 0.00% | +68,285 | New |
| Saba Capital Management, L.P. | 65,923 | $492.0K | 0.01% | −175,776−72.7% | Reduced |
| American International Group, Inc. | 65,040 | $486.0K | 0.00% | +919+1.4% | Added |
| Deutsche Bank AG | 58,149 | $434.0K | 0.00% | −6,623−10.2% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 56,698 | $424.0K | 0.00% | +17,510+44.7% | Added |
| Jane Street Group, LLC | 55,055 | $411.0K | 0.00% | −6,718−10.9% | Reduced |
| Voya Investment Management LLC | 52,507 | $392.2K | 0.00% | +2,470+4.9% | Added |
| Manufacturers Life Insurance Company, The | 52,085 | $389.1K | 0.00% | −1,071−2.0% | Reduced |
| Legal & General Group Plc | 47,049 | $351.0K | 0.00% | +3,136+7.1% | Added |
| Acuitas Investments, LLC | 44,167 | $330.0K | 0.36% | +44,167 | New |
| Susquehanna International Group, LLP | 42,438 | $317.0K | 0.00% | −88,796−67.7% | Reduced |
| Old Well Partners, LLC | 36,231 | $271.0K | 0.23% | +36,231 | New |
| Arizona State Retirement System | 35,254 | $263.0K | 0.00% | +108+0.3% | Added |
| Bank of America Corp | 32,731 | $244.0K | 0.00% | +5,821+21.6% | Added |
| STRS Ohio | 31,900 | $238.0K | 0.00% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 24,192 | $181.0K | 0.00% | −7,093−22.7% | Reduced |
| GWM Advisors LLC | 22,402 | $167.0K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 21,492 | $161.0K | 0.00% | +8,422+64.4% | Added |
| Worth Venture Partners, LLC | 21,381 | $160.0K | 0.10% | +21,381 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 21,154 | $158.0K | 0.00% | +21,154 | New |
| Victory Capital Management Inc | 19,763 | $148.0K | 0.00% | +762+4.0% | Added |
| Kestra Advisory Services, LLC | 19,501 | $146.0K | 0.00% | −1,500−7.1% | Reduced |
| Teacher Retirement System of Texas | 18,716 | $140.0K | 0.00% | −1,585−7.8% | Reduced |
| Amalgamated Bank | 17,521 | $131.0K | 0.00% | +171+1.0% | Added |
| Ensign Peak Advisors, Inc | 17,040 | $127.0K | 0.00% | +17,040 | New |
| Verition Fund Management LLC | 16,349 | $122.0K | 0.00% | −700−4.1% | Reduced |
| Bayesian Capital Management, LP | 15,104 | $113.0K | 0.02% | −6,000−28.4% | Reduced |
| ProShare Advisors LLC | 15,104 | $113.0K | 0.00% | −286−1.9% | Reduced |
| Panagora Asset Management Inc | 13,755 | $103.0K | 0.00% | +13,755 | New |
| Truist Financial Corp | 13,424 | $100.0K | 0.00% | +407+3.1% | Added |
| Neuberger Berman Group LLC | 13,025 | $97.0K | 0.00% | −91−0.7% | Reduced |
| Punch & Associates Investment Management, Inc. | 11,700 | $87.0K | 0.01% | 00.0% | Unchanged |
| Mariner, LLC | 10,669 | $80.0K | 0.00% | +10,669 | New |
| Ameritas Investment Partners, Inc. | 10,275 | $76.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 10,000 | $75.0K | 0.00% | −48,000−82.8% | Reduced |
| Tudor Investment Corp Et Al | 10,000 | $75.0K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 9,730 | $73.0K | 0.00% | −158,521−94.2% | Reduced |