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, Q1 2023
Institutional positions in Mirion Technologies, Inc. as of Mar 31, 2023. 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
- 117
- −2 vs. Q4 2022
- Shares held
- 170.0M
- +16.8M (+10.9%) vs. Q4 2022
- Total value
- $1.45B
- +$439.2M (+43.4%) vs. Q4 2022
- New holders
- 17
- 45 more added
- Sold out
- 19
- 38 more reduced
Compare with Q4 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, Q1 2023
Shares, value and share of portfolio for each institution holding Mirion Technologies, Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Goldman Sachs Group Inc | 34,811,836 | $297.3M | 0.08% | +18,514+0.1% | Added |
| Vanguard Group Inc | 18,364,276 | $156.8M | 0.00% | +5,786,779+46.0% | Added |
| T. Rowe Price Investment Management, Inc. | 17,695,391 | $151.1M | 0.11% | +17,695,391 | New |
| Janus Henderson Group PLC | 11,000,547 | $93.9M | 0.06% | −695,747−5.9% | Reduced |
| BlackRock Inc. | 10,535,718 | $90.0M | 0.00% | +96,685+0.9% | Added |
| Swedbank AB | 9,391,979 | $80.2M | 0.16% | +129,579+1.4% | Added |
| FMR LLC | 8,652,193 | $73.9M | 0.01% | −637,126−6.9% | Reduced |
| Cooperman Leon G | 6,448,573 | $55.1M | 3.32% | +82,500+1.3% | Added |
| Alyeska Investment Group, L.P. | 5,023,698 | $42.9M | 0.38% | −2,724,337−35.2% | Reduced |
| Nomura Holdings Inc | 5,004,836 | $42.7M | 0.42% | −220,214−4.2% | Reduced |
| State Street Corp | 3,785,602 | $32.3M | 0.00% | +191,701+5.3% | Added |
| Kohlberg Kravis Roberts & Co. L.P. | 3,387,736 | $28.9M | 0.87% | +158,561+4.9% | Added |
| P2 Capital Partners, LLC | 2,878,368 | $24.6M | 3.15% | −2,648,567−47.9% | Reduced |
| ArrowMark Colorado Holdings LLC | 2,667,148 | $22.8M | 0.26% | +305,917+13.0% | Added |
| Geode Capital Management, LLC | 2,450,864 | $20.9M | 0.00% | +66,599+2.8% | Added |
| Corsair Capital Management, L.P. | 2,345,833 | $20.0M | 7.61% | −365,308−13.5% | Reduced |
| First Manhattan Co | 1,818,014 | $15.5M | 0.06% | −102,100−5.3% | Reduced |
| Schwartz Investment Counsel Inc | 1,565,000 | $13.4M | 0.58% | +75,000+5.0% | Added |
| Lord, Abbett & Co. LLC | 1,420,413 | $12.1M | 0.04% | +807,131+131.6% | Added |
| Bpifrance SA | 1,286,446 | $11.0M | 0.28% | 00.0% | Unchanged |
| Barrow Hanley Mewhinney & Strauss LLC | 1,220,461 | $10.4M | 0.04% | −115,446−8.6% | Reduced |
| Northern Trust Corp | 1,186,507 | $10.1M | 0.00% | −29,713−2.4% | Reduced |
| Crestline Management, LP | 1,173,795 | $10.0M | 1.23% | −326,215−21.7% | Reduced |
| Morgan Stanley | 1,150,256 | $9.82M | 0.00% | +11,864+1.0% | Added |
| Nuveen Asset Management, LLC | 1,066,977 | $9.11M | 0.00% | +18,959+1.8% | Added |
| Pantechnicon Advisors LLP | 1,030,000 | $8.80M | 3.56% | +1,030,000 | New |
| Charles Schwab Investment Management Inc | 940,330 | $8.03M | 0.00% | −2,022−0.2% | Reduced |
| Pentwater Capital Management LP | 800,000 | $6.83M | 0.11% | +355,000+79.8% | Added |
| Gabelli Funds LLC | 717,000 | $6.12M | 0.05% | +12,000+1.7% | Added |
| Schonfeld Strategic Advisors LLC | 661,407 | $5.65M | 0.05% | +582,707+740.4% | Added |
| Carlson Capital L P | 553,935 | $4.73M | 0.44% | −180,000−24.5% | Reduced |
| Arrowstreet Capital, Limited Partnership | 532,265 | $4.55M | 0.01% | +532,265 | New |
| ING Groep NV | 500,000 | $4.27M | 0.04% | +500,000 | New |
| CIBC World Markets Corp | 500,000 | $4.27M | 0.07% | +500,000 | New |
| Bank of New York Mellon Corp | 458,645 | $3.92M | 0.00% | −80,416−14.9% | Reduced |
| Roubaix Capital, LLC | 448,151 | $3.83M | 2.92% | +448,151 | New |
| Hudson Bay Capital Management LP | 368,107 | $3.14M | 0.03% | +15,187+4.3% | Added |
| TD Asset Management Inc | 330,958 | $2.83M | 0.00% | +330,958 | New |
| Swiss National Bank | 280,700 | $2.40M | 0.00% | −33,300−10.6% | Reduced |
| Sculptor Capital LP | 279,405 | $2.39M | 0.06% | −166,696−37.4% | Reduced |
| Russell Investments Group, Ltd. | 264,331 | $2.26M | 0.00% | +517+0.2% | Added |
| Scopus Asset Management, L.P. | 250,000 | $2.13M | 0.08% | +50,000+25.0% | Added |
| Bank of America Corp | 244,686 | $2.09M | 0.00% | +66,911+37.6% | Added |
| Susquehanna International Group, LLP | 233,664 | $2.00M | 0.00% | +219,695+1,572.7% | Added |
| Royce & Associates LP | 225,000 | $1.92M | 0.02% | +100,000+80.0% | Added |
| Ionic Capital Management LLC | 222,028 | $1.90M | 0.72% | −425,321−65.7% | Reduced |
| Rhumbline Advisers | 221,579 | $1.89M | 0.00% | +12,044+5.7% | Added |
| Gamco Investors, Inc. Et Al | 220,000 | $1.88M | 0.02% | +16,000+7.8% | Added |
| Invesco Ltd. | 183,701 | $1.57M | 0.00% | +71,087+63.1% | Added |
| M&T Bank Corp | 180,292 | $1.54M | 0.01% | +31,408+21.1% | Added |
| JPMorgan Chase & Co | 168,242 | $1.44M | 0.00% | +33,203+24.6% | Added |
| California State Teachers Retirement System | 165,203 | $1.41M | 0.00% | −2,488−1.5% | Reduced |
| Qube Research & Technologies Ltd | 162,218 | $1.39M | 0.01% | +162,218 | New |
| Select Equity Group, L.P. | 159,466 | $1.36M | 0.01% | +159,466 | New |
| Bamco Inc | 150,000 | $1.28M | 0.00% | −408,304−73.1% | Reduced |
| Alliancebernstein L.P. | 149,258 | $1.27M | 0.00% | −439−0.3% | Reduced |
| Renaissance Technologies LLC | 134,100 | $1.15M | 0.00% | +54,800+69.1% | Added |
| UBS Asset Management Americas Inc | 130,379 | $1.11M | 0.00% | +20,453+18.6% | Added |
| Susquehanna Fundamental Investments, LLC | 126,953 | $1.08M | 0.03% | 00.0% | Unchanged |
| Boston Partners | 116,166 | $992.1K | 0.00% | −6,352−5.2% | Reduced |
| Credit Suisse AG | 114,638 | $979.0K | 0.00% | +7,351+6.9% | Added |
| Squarepoint Ops LLC | 105,750 | $903.1K | 0.01% | +105,750 | New |
| Deutsche Bank AG | 90,641 | $774.1K | 0.00% | +31,575+53.5% | Added |
| First Trust Advisors LP | 74,430 | $635.6K | 0.00% | +74,430 | New |
| MetLife Investment Management | 73,950 | $631.5K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 71,816 | $613.3K | 0.00% | −24,600−25.5% | Reduced |
| Nordwand Advisors, LLC | 70,600 | $602.9K | 0.10% | +25,000+54.8% | Added |
| Occudo Quantitative Strategies LP | 69,848 | $596.5K | 0.05% | +69,848 | New |
| Barclays PLC | 69,591 | $594.3K | 0.00% | +32,806+89.2% | Added |
| American International Group, Inc. | 66,120 | $564.7K | 0.00% | +1,316+2.0% | Added |
| Legal & General Group Plc | 64,268 | $548.8K | 0.00% | +17,852+38.5% | Added |
| Mirae Asset Global Investments Co., Ltd. | 56,698 | $484.2K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 56,389 | $481.6K | 0.00% | +1,128+2.0% | Added |
| UBS Group AG | 53,536 | $457.2K | 0.00% | +46,369+647.0% | Added |
| Voya Investment Management LLC | 52,507 | $448.4K | 0.00% | 00.0% | Unchanged |
| Arizona State Retirement System | 37,689 | $321.9K | 0.00% | +994+2.7% | Added |
| Wells Fargo & Company | 28,666 | $244.8K | 0.00% | +26,434+1,184.3% | Added |
| Jane Street Group, LLC | 25,849 | $220.8K | 0.00% | −13,685−34.6% | Reduced |
| Price T Rowe Associates Inc | 25,688 | $220.0K | 0.00% | +1,454+6.0% | Added |
| Handelsbanken Fonder AB | 22,900 | $196.0K | 0.00% | +22,900 | New |
| GWM Advisors LLC | 21,902 | $187.0K | 0.00% | −300−1.4% | Reduced |
| Ergoteles LLC | 21,900 | $187.0K | 0.01% | +3,625+19.8% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 21,022 | $179.5K | 0.00% | 00.0% | Unchanged |
| Victory Capital Management Inc | 20,955 | $179.0K | 0.00% | +1,201+6.1% | Added |
| Ratan Capital Management LP | 20,487 | $175.0K | 0.47% | −613,214−96.8% | Reduced |
| Kestra Advisory Services, LLC | 19,001 | $162.3K | 0.00% | 00.0% | Unchanged |
| Man Group plc | – | $158.8K | 0.00% | – | – |
| Saba Capital Management, L.P. | 17,031 | $145.4K | 0.00% | −45,000−72.5% | Reduced |
| State of Wisconsin Investment Board | 16,723 | $142.8K | 0.00% | +509+3.1% | Added |
| Epacria Capital Partners, LLC | 16,135 | $137.8K | 0.11% | 00.0% | Unchanged |
| ProShare Advisors LLC | 16,124 | $137.7K | 0.00% | −1,504−8.5% | Reduced |
| Pictet Asset Management SA | 16,084 | $137.4K | 0.00% | 00.0% | Unchanged |
| Principal Financial Group Inc | 15,612 | $133.3K | 0.00% | −794,616−98.1% | Reduced |
| Mercer Global Advisors Inc | 15,537 | $133.0K | 0.00% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 14,467 | $124.0K | 0.00% | −65−0.4% | Reduced |
| Amalgamated Bank | 14,175 | $121.0K | 0.00% | −3,346−19.1% | Reduced |
| Truist Financial Corp | 12,335 | $105.3K | 0.00% | −516−4.0% | Reduced |
| Citigroup Inc | 10,915 | $93.2K | 0.00% | +6,754+162.3% | Added |
| Ameritas Investment Partners, Inc. | 10,275 | $87.7K | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 10,173 | $87.0K | 0.00% | −15,557−60.5% | Reduced |