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 2024
Institutional positions in Mirion Technologies, Inc. as of Mar 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
- 143
- +18 vs. Q4 2023
- Shares held
- 188.6M
- +722.9K (+0.4%) vs. Q4 2023
- Total value
- $2.14B
- +$218.4M (+11.3%) vs. Q4 2023
- New holders
- 32
- 49 more added
- Sold out
- 14
- 45 more reduced
Compare with Q4 2023: 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 2024
Shares, value and share of portfolio for each institution holding Mirion Technologies, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Goldman Sachs Group Inc | 34,806,291 | $395.7M | 0.08% | −5890.0% | Reduced |
| Vanguard Group Inc | 21,308,031 | $242.3M | 0.00% | +159,404+0.8% | Added |
| T. Rowe Price Investment Management, Inc. | 20,641,440 | $234.7M | 0.14% | +775,214+3.9% | Added |
| BlackRock Inc. | 15,555,495 | $176.9M | 0.00% | −391,489−2.5% | Reduced |
| Swedbank AB | 10,778,000 | $122.5M | 0.17% | +404,056+3.9% | Added |
| Janus Henderson Group PLC | 9,403,114 | $106.9M | 0.06% | +3,9290.0% | Added |
| Cooperman Leon G | 7,513,400 | $85.4M | 3.56% | 00.0% | Unchanged |
| Alyeska Investment Group, L.P. | 6,923,799 | $78.7M | 0.49% | +1,765,923+34.2% | Added |
| Select Equity Group, L.P. | 5,960,533 | $67.8M | 0.24% | +3,740,265+168.5% | Added |
| P2 Capital Partners, LLC | 5,520,000 | $62.8M | 7.42% | −327,122−5.6% | Reduced |
| Dimensional Fund Advisors LP | 5,079,967 | $57.8M | 0.02% | +1,341,067+35.9% | Added |
| State Street Corp | 5,050,536 | $57.4M | 0.00% | +36,970+0.7% | Added |
| Geode Capital Management, LLC | 4,200,607 | $47.8M | 0.00% | +113,081+2.8% | Added |
| Adage Capital Partners GP, L.L.C. | 3,040,799 | $34.6M | 0.07% | +2,100,000+223.2% | Added |
| ArrowMark Colorado Holdings LLC | 2,798,992 | $31.8M | 0.36% | −827,346−22.8% | Reduced |
| American Century Companies Inc | 2,435,470 | $27.7M | 0.02% | +441,336+22.1% | Added |
| First Manhattan Co | 1,760,374 | $20.0M | 0.06% | −27,685−1.5% | Reduced |
| Corsair Capital Management, L.P. | 1,742,217 | $19.8M | 5.56% | −592,574−25.4% | Reduced |
| Northern Trust Corp | 1,710,413 | $19.4M | 0.00% | −38,437−2.2% | Reduced |
| Lord, Abbett & Co. LLC | 1,536,211 | $17.5M | 0.06% | −120,569−7.3% | Reduced |
| Schwartz Investment Counsel Inc | 1,499,300 | $17.0M | 0.62% | +9,300+0.6% | Added |
| Charles Schwab Investment Management Inc | 1,480,154 | $16.8M | 0.00% | +17,193+1.2% | Added |
| Nuveen Asset Management, LLC | 1,163,309 | $13.2M | 0.00% | −321,651−21.7% | Reduced |
| Morgan Stanley | 1,011,842 | $11.5M | 0.00% | −583,027−36.6% | Reduced |
| Crestline Management, LP | 810,000 | $9.21M | 0.87% | −90,000−10.0% | Reduced |
| CIBC World Markets Inc. | 805,000 | $9.15M | 0.02% | +805,000 | New |
| Gamco Investors, Inc. Et Al | 768,645 | $8.74M | 0.09% | −11,200−1.4% | Reduced |
| Arrowstreet Capital, Limited Partnership | 736,950 | $8.38M | 0.01% | +736,950 | New |
| Bank of New York Mellon Corp | 718,867 | $8.17M | 0.00% | −53,874−7.0% | Reduced |
| Gabelli Funds LLC | 706,040 | $8.03M | 0.06% | −10,000−1.4% | Reduced |
| Carlson Capital L P | 618,478 | $7.03M | 0.57% | +79,414+14.7% | Added |
| JPMorgan Chase & Co | 592,714 | $6.74M | 0.00% | +254,511+75.3% | Added |
| UBS Group AG | 578,000 | $6.57M | 0.00% | +208,628+56.5% | Added |
| CIBC World Markets Corp | 575,000 | $6.54M | 0.04% | −500,000−46.5% | Reduced |
| Verition Fund Management LLC | 548,054 | $6.23M | 0.06% | +548,054 | New |
| First Trust Advisors LP | 454,069 | $5.16M | 0.01% | +195,288+75.5% | Added |
| Royce & Associates LP | 430,000 | $4.89M | 0.04% | +205,000+91.1% | Added |
| Chescapmanager LLC | 373,161 | $4.24M | 0.72% | +373,161 | New |
| Bank of America Corp | 359,503 | $4.09M | 0.00% | +235,985+191.1% | Added |
| TD Asset Management Inc | 344,452 | $3.92M | 0.00% | +8,398+2.5% | Added |
| Swiss National Bank | 343,600 | $3.91M | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 324,229 | $3.69M | 0.00% | +411+0.1% | Added |
| Renaissance Technologies LLC | 302,500 | $3.44M | 0.01% | +302,500 | New |
| Essex Investment Management Co LLC | 259,500 | $2.95M | 0.58% | +1,427+0.6% | Added |
| Invesco Ltd. | 254,534 | $2.89M | 0.00% | −27,146−9.6% | Reduced |
| Alliancebernstein L.P. | 219,663 | $2.50M | 0.00% | −210.0% | Reduced |
| UBS Asset Management Americas Inc | 217,057 | $2.47M | 0.00% | +17,229+8.6% | Added |
| M&T Bank Corp | 200,281 | $2.28M | 0.01% | −46,027−18.7% | Reduced |
| Hollow Brook Wealth Management LLC | 198,985 | $2.26M | 0.84% | +12,982+7.0% | Added |
| Trexquant Investment LP | 186,427 | $2.12M | 0.04% | +151,213+429.4% | Added |
| California State Teachers Retirement System | 176,996 | $2.01M | 0.00% | −11,218−6.0% | Reduced |
| Barclays PLC | 175,398 | $1.99M | 0.00% | −134,440−43.4% | Reduced |
| Legal & General Group Plc | 167,363 | $1.90M | 0.00% | +1,232+0.7% | Added |
| Credit Suisse AG | 166,542 | $1.89M | 0.00% | +17,841+12.0% | Added |
| Deutsche Bank AG | 155,056 | $1.76M | 0.00% | +62,723+67.9% | Added |
| Aperture Investors, LLC | 153,105 | $1.74M | 0.22% | +153,105 | New |
| Russell Investments Group, Ltd. | 148,666 | $1.69M | 0.00% | −41,289−21.7% | Reduced |
| Ardsley Advisory Partners LP | 125,000 | $1.42M | 0.20% | −25,000−16.7% | Reduced |
| Legato Capital Management LLC | 120,080 | $1.37M | 0.16% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 111,519 | $1.27M | 0.00% | +7,264+7.0% | Added |
| MetLife Investment Management | 106,362 | $1.21M | 0.01% | 00.0% | Unchanged |
| Jackson Creek Investment Advisors LLC | 106,297 | $1.21M | 0.43% | +106,297 | New |
| Manufacturers Life Insurance Company, The | 105,065 | $1.19M | 0.00% | +9,459+9.9% | Added |
| American International Group, Inc. | 98,796 | $1.12M | 0.00% | −848−0.9% | Reduced |
| Qube Research & Technologies Ltd | 80,973 | $920.7K | 0.00% | +80,973 | New |
| Wells Fargo & Company | 79,683 | $906.0K | 0.00% | +7,709+10.7% | Added |
| New York State Common Retirement Fund | 74,450 | $846.5K | 0.00% | −9,865−11.7% | Reduced |
| Citigroup Inc | 74,254 | $844.3K | 0.00% | −369,126−83.3% | Reduced |
| Boston Partners | 72,135 | $820.2K | 0.00% | +39,582+121.6% | Added |
| SG Americas Securities, LLC | 70,476 | $801.0K | 0.00% | +886+1.3% | Added |
| Voya Investment Management LLC | 66,449 | $755.5K | 0.00% | −14,863−18.3% | Reduced |
| Walleye Capital LLC | 63,400 | $720.9K | 0.01% | +63,400 | New |
| Citadel Advisors LLC | 60,340 | $686.1K | 0.00% | +10,004+19.9% | Added |
| Quest Partners LLC | 59,333 | $674.6K | 0.12% | +59,333 | New |
| Marshall Wace, LLP | 53,610 | $609.5K | 0.00% | +23,949+80.7% | Added |
| Allspring Global Investments Holdings, LLC | 49,509 | $562.9K | 0.00% | +49,509 | New |
| Arizona State Retirement System | 47,923 | $544.9K | 0.00% | −817−1.7% | Reduced |
| Capstone Investment Advisors, LLC | 47,301 | $537.8K | 0.01% | +47,301 | New |
| Handelsbanken Fonder AB | 46,831 | $532.0K | 0.00% | 00.0% | Unchanged |
| Campbell & CO Investment Adviser LLC | 42,726 | $485.8K | 0.04% | +42,726 | New |
| Maverick Capital LtdSuperinvestorMaverick Capital | 40,774 | $463.6K | 0.01% | +40,774 | New |
| Mirae Asset Global Investments Co., Ltd. | 56,698 | $456.4K | 0.00% | −34,019−37.5% | Reduced |
| Teacher Retirement System of Texas | 37,046 | $421.0K | 0.00% | +37,046 | New |
| HRT Financial LP | 36,451 | $414.0K | 0.00% | −4,089−10.1% | Reduced |
| ProShare Advisors LLC | 36,017 | $409.5K | 0.00% | +2,833+8.5% | Added |
| Fox Run Management, L.L.C. | 31,159 | $354.3K | 0.08% | +31,159 | New |
| Wolverine Asset Management LLC | 30,000 | $341.1K | 0.01% | +30,000 | New |
| State of Wyoming | 29,064 | $330.5K | 0.06% | +29,064 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 28,105 | $319.6K | 0.00% | −3,925−12.3% | Reduced |
| Victory Capital Management Inc | 27,471 | $312.3K | 0.00% | −402−1.4% | Reduced |
| Squarepoint Ops LLC | 27,318 | $310.6K | 0.00% | +27,318 | New |
| Nordwand Advisors, LLC | 25,000 | $284.3K | 0.11% | 00.0% | Unchanged |
| Pictet Asset Management Holding SA | 24,618 | $279.9K | 0.00% | 00.0% | Unchanged |
| Principal Financial Group Inc | 23,036 | $261.9K | 0.00% | −2,221−8.8% | Reduced |
| Lazard Asset Management LLC | 22,751 | $258.0K | 0.00% | +3,753+19.8% | Added |
| Kestra Advisory Services, LLC | 22,689 | $258.0K | 0.00% | +4,238+23.0% | Added |
| Jane Street Group, LLC | 22,423 | $254.9K | 0.00% | −170,890−88.4% | Reduced |
| Mariner, LLC | 22,284 | $253.4K | 0.00% | +6,029+37.1% | Added |
| HSBC Holdings PLC | 22,274 | $253.3K | 0.00% | +22,274 | New |
| Walleye Trading LLC | 20,970 | $238.4K | 0.00% | +20,970 | New |