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 |
|---|---|---|---|---|---|
| First Manhattan Co | 1,818,014 | $15.5M | 0.06% | −102,100−5.3% | Reduced |
| Corsair Capital Management, L.P. | 2,345,833 | $20.0M | 7.61% | −365,308−13.5% | Reduced |
| Geode Capital Management, LLC | 2,450,864 | $20.9M | 0.00% | +66,599+2.8% | Added |
| ArrowMark Colorado Holdings LLC | 2,667,148 | $22.8M | 0.26% | +305,917+13.0% | Added |
| P2 Capital Partners, LLC | 2,878,368 | $24.6M | 3.15% | −2,648,567−47.9% | Reduced |
| Kohlberg Kravis Roberts & Co. L.P. | 3,387,736 | $28.9M | 0.87% | +158,561+4.9% | Added |
| State Street Corp | 3,785,602 | $32.3M | 0.00% | +191,701+5.3% | Added |
| Nomura Holdings Inc | 5,004,836 | $42.7M | 0.42% | −220,214−4.2% | Reduced |
| Alyeska Investment Group, L.P. | 5,023,698 | $42.9M | 0.38% | −2,724,337−35.2% | Reduced |
| Cooperman Leon G | 6,448,573 | $55.1M | 3.32% | +82,500+1.3% | Added |
| FMR LLC | 8,652,193 | $73.9M | 0.01% | −637,126−6.9% | Reduced |
| Swedbank AB | 9,391,979 | $80.2M | 0.16% | +129,579+1.4% | Added |
| BlackRock Inc. | 10,535,718 | $90.0M | 0.00% | +96,685+0.9% | Added |
| Janus Henderson Group PLC | 11,000,547 | $93.9M | 0.06% | −695,747−5.9% | Reduced |
| T. Rowe Price Investment Management, Inc. | 17,695,391 | $151.1M | 0.11% | +17,695,391 | New |
| Vanguard Group Inc | 18,364,276 | $156.8M | 0.00% | +5,786,779+46.0% | Added |
| Goldman Sachs Group Inc | 34,811,836 | $297.3M | 0.08% | +18,514+0.1% | Added |
| Senator Investment Group LP | 0 | $0 | 0.00% | −1,650,000−100.0% | Sold out |
| Clearline Capital LP | 0 | $0 | 0.00% | −626,431−100.0% | Sold out |
| Artal Group S.A. | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| Gyon Technologies Capital Management, LP | 0 | $0 | 0.00% | −409,626−100.0% | Sold out |
| Western Standard LLC | 0 | $0 | 0.00% | −291,235−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −90,766−100.0% | Sold out |
| STRS Ohio | 0 | $0 | 0.00% | −28,900−100.0% | Sold out |
| Acuitas Investments, LLC | 0 | $0 | 0.00% | −27,600−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −25,978−100.0% | Sold out |
| CenterBook Partners LP | 0 | $0 | 0.00% | −24,571−100.0% | Sold out |
| Worth Venture Partners, LLC | 0 | $0 | 0.00% | −13,369−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −11,638−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −10,029−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −5,496−100.0% | Sold out |
| Madden Securities Corp | 0 | $0 | 0.00% | −3,354−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −217−100.0% | Sold out |
| Ellevest, Inc. | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Lindbrook Capital, LLC | 0 | $0 | 0.00% | −29−100.0% | Sold out |