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 2023
Institutional positions in Mirion Technologies, Inc. as of Sep 30, 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
- 127
- +4 vs. Q2 2023
- Shares held
- 187.9M
- +6.55M (+3.6%) vs. Q2 2023
- Total value
- $1.40B
- −$128.8M (−8.4%) vs. Q2 2023
- New holders
- 16
- 63 more added
- Sold out
- 12
- 28 more reduced
1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2023
Shares, value and share of portfolio for each institution holding Mirion Technologies, Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bpifrance SA | 1,286,446 | $9.61M | 0.24% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 1,378,226 | $10.3M | 0.00% | +72,073+5.5% | Added |
| Crestline Management, LP | 1,400,000 | $10.5M | 1.25% | +40,914+3.0% | Added |
| Charles Schwab Investment Management Inc | 1,444,797 | $10.8M | 0.00% | +352,573+32.3% | Added |
| Schwartz Investment Counsel Inc | 1,565,000 | $11.7M | 0.50% | 00.0% | Unchanged |
| Morgan Stanley | 1,645,010 | $12.3M | 0.00% | +180,721+12.3% | Added |
| Lord, Abbett & Co. LLC | 1,656,586 | $12.4M | 0.05% | +102,792+6.6% | Added |
| Northern Trust Corp | 1,749,625 | $13.1M | 0.00% | +130,518+8.1% | Added |
| American Century Companies Inc | 1,857,904 | $13.9M | 0.01% | +488,171+35.6% | Added |
| Pantechnicon Advisors LLP | 1,860,000 | $13.9M | 6.00% | +660,000+55.0% | Added |
| First Manhattan Co | 2,079,399 | $15.5M | 0.06% | +271,825+15.0% | Added |
| Dimensional Fund Advisors LP | 2,667,090 | $19.9M | 0.01% | +1,307,273+96.1% | Added |
| Corsair Capital Management, L.P. | 2,699,111 | $20.2M | 6.93% | +481,968+21.7% | Added |
| ArrowMark Colorado Holdings LLC | 3,298,853 | $24.6M | 0.30% | +412,690+14.3% | Added |
| Kohlberg Kravis Roberts & Co. L.P. | 3,445,894 | $25.7M | 0.90% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 3,875,831 | $29.0M | 0.00% | +717,774+22.7% | Added |
| Nomura Holdings Inc | 4,422,635 | $33.0M | 0.36% | −563,839−11.3% | Reduced |
| State Street Corp | 5,119,921 | $38.2M | 0.00% | +283,133+5.9% | Added |
| P2 Capital Partners, LLC | 5,372,708 | $40.1M | 5.29% | +983,137+22.4% | Added |
| Alyeska Investment Group, L.P. | 6,273,088 | $46.9M | 0.32% | +2,403,595+62.1% | Added |
| Cooperman Leon G | 7,400,000 | $55.3M | 2.89% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 8,727,876 | $65.2M | 0.04% | −976,433−10.1% | Reduced |
| Swedbank AB | 11,237,169 | $83.9M | 0.15% | +854,169+8.2% | Added |
| BlackRock Inc. | 14,854,608 | $111.0M | 0.00% | +990,619+7.1% | Added |
| T. Rowe Price Investment Management, Inc. | 19,591,772 | $146.4M | 0.10% | +568,177+3.0% | Added |
| Vanguard Group Inc | 21,327,974 | $159.3M | 0.00% | +2,029,698+10.5% | Added |
| Goldman Sachs Group Inc | 34,800,585 | $260.0M | 0.07% | +2940.0% | Added |
| ING Groep NV | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −258,496−100.0% | Sold out |
| Scopus Asset Management, L.P. | 0 | $0 | 0.00% | −250,000−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −210,188−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −146,450−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −20,730−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −15,785−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −14,118−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −12,700−100.0% | Sold out |
| Blue Bell Private Wealth Management, LLC | 0 | $0 | 0.00% | −700−100.0% | Sold out |
| Byrne Asset Management LLC | 0 | $0 | 0.00% | −225−100.0% | Sold out |
| CWM, LLC | 0 | $0 | 0.00% | −31−100.0% | Sold out |
| Pictet Asset Management SA | – | – | – | – | Not filed |