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, Q4 2023
Institutional positions in Mirion Technologies, Inc. as of Dec 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
- 125
- −1 vs. Q3 2023
- Shares held
- 187.9M
- −41.8K (0.0%) vs. Q3 2023
- Total value
- $1.93B
- +$522.0M (+37.2%) vs. Q3 2023
- New holders
- 14
- 48 more added
- Sold out
- 15
- 44 more reduced
1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding Mirion Technologies, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Charles Schwab Investment Management Inc | 1,462,961 | $15.0M | 0.00% | +18,164+1.3% | Added |
| Nuveen Asset Management, LLC | 1,484,960 | $15.2M | 0.00% | +106,734+7.7% | Added |
| Schwartz Investment Counsel Inc | 1,490,000 | $15.3M | 0.60% | −75,000−4.8% | Reduced |
| Morgan Stanley | 1,594,869 | $16.3M | 0.00% | −50,141−3.0% | Reduced |
| Lord, Abbett & Co. LLC | 1,656,780 | $17.0M | 0.06% | +1940.0% | Added |
| Northern Trust Corp | 1,748,850 | $17.9M | 0.00% | −7750.0% | Reduced |
| First Manhattan Co | 1,788,059 | $18.3M | 0.06% | −291,340−14.0% | Reduced |
| American Century Companies Inc | 1,994,134 | $20.4M | 0.01% | +136,230+7.3% | Added |
| Select Equity Group, L.P. | 2,220,268 | $22.8M | 0.08% | +1,890,107+572.5% | Added |
| Corsair Capital Management, L.P. | 2,334,791 | $23.9M | 7.69% | −364,320−13.5% | Reduced |
| Kohlberg Kravis Roberts & Co. L.P. | 3,445,894 | $35.3M | 1.04% | 00.0% | Unchanged |
| ArrowMark Colorado Holdings LLC | 3,626,338 | $37.2M | 0.41% | +327,485+9.9% | Added |
| Dimensional Fund Advisors LP | 3,738,900 | $38.3M | 0.01% | +1,071,810+40.2% | Added |
| Geode Capital Management, LLC | 4,087,526 | $41.9M | 0.00% | +211,695+5.5% | Added |
| Nomura Holdings Inc | 4,916,574 | $50.4M | 0.45% | +493,939+11.2% | Added |
| State Street Corp | 5,013,566 | $51.4M | 0.00% | −106,355−2.1% | Reduced |
| Alyeska Investment Group, L.P. | 5,157,876 | $52.9M | 0.36% | −1,115,212−17.8% | Reduced |
| P2 Capital Partners, LLC | 5,847,122 | $59.9M | 6.60% | +474,414+8.8% | Added |
| Cooperman Leon G | 7,513,400 | $77.0M | 3.67% | +113,400+1.5% | Added |
| Janus Henderson Group PLC | 9,399,185 | $96.3M | 0.06% | +671,309+7.7% | Added |
| Swedbank AB | 10,373,944 | $106.3M | 0.17% | −863,225−7.7% | Reduced |
| BlackRock Inc. | 15,946,984 | $163.5M | 0.00% | +1,092,376+7.4% | Added |
| T. Rowe Price Investment Management, Inc. | 19,866,226 | $203.6M | 0.13% | +274,454+1.4% | Added |
| Vanguard Group Inc | 21,148,627 | $216.8M | 0.00% | −179,347−0.8% | Reduced |
| Goldman Sachs Group Inc | 34,806,880 | $356.8M | 0.08% | +6,2950.0% | Added |
| Bpifrance SA | 0 | $0 | 0.00% | −1,286,446−100.0% | Sold out |
| Barrow Hanley Mewhinney & Strauss LLC | 0 | $0 | 0.00% | −922,550−100.0% | Sold out |
| Sculptor Capital LP | 0 | $0 | 0.00% | −409,405−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −178,575−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −171,298−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −35,171−100.0% | Sold out |
| Versor Investments LP | 0 | $0 | 0.00% | −24,700−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −19,722−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −18,213−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −16,149−100.0% | Sold out |
| Oppenheimer & Co Inc | 0 | $0 | 0.00% | −13,900−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −13,472−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −11,000−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −8,053−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −5,958−100.0% | Sold out |
| Steward Financial Group LLC | – | – | – | – | Not filed |