MIR — MIRION TECHNOLOGIES INC
As of Q2 2026, 39 SEC-registered investment managers reported holding MIR (MIRION TECHNOLOGIES INC) in their latest 13F filings, with a combined reported value of $1.89B across 105.77M shares. That is -0.2% by share count (-256.43K shares) versus the previous quarter, while reported value moved -3.9%. Ownership is concentrated: the five largest holders account for 64.1% of reported value and the top ten for 79.2%.
Compared with the prior quarter, 2 opened new positions, 21 added to existing stakes, 14 trimmed, 2 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
MIR is classified in the Industrials sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
| Fund | Quarter | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|---|
| Vanguard Group history | Q4 2025 | 30.35M | $710.71M | 0.01% | Hold |
| BlackRock Inc history | Q2 2026 | 38.26M | $686.04M | 0.01% | Add |
| Goldman Sachs Group history | Q2 2026 | 10.41M | $186.59M | 0.02% | Add |
| Fidelity Management & Research (FMR) history | Q2 2026 | 7.33M | $131.42M | 0.01% | Add |
| Geode Capital Management history | Q2 2026 | 6.28M | $112.62M | 0.01% | Add |
| Maverick Capital history | Q2 2026 | 5.25M | $94.04M | 0.85% | Add |
| Janus Henderson Group history | Q1 2026 | 4.04M | $75.16M | 0.04% | Reduce |
| Baron Funds history | Q2 2026 | 3.91M | $70.04M | 0.17% | Add |
| Morgan Stanley history | Q2 2026 | 3.90M | $69.87M | 0.00% | Add |
| Invesco Ltd history | Q2 2026 | 2.77M | $49.66M | 0.00% | Add |
| UBS Group AG history | Q2 2026 | 2.69M | $48.17M | 0.01% | Reduce |
| Northern Trust Corp history | Q2 2026 | 2.59M | $46.37M | 0.01% | Add |
| JPMorgan Chase & Co history | Q2 2026 | 2.61M | $45.69M | 0.01% | New |
| Charles Schwab Investment Management history | Q2 2026 | 2.45M | $43.88M | 0.01% | Add |
| Davidson Kempner Capital Management history | Q2 2026 | 1.62M | $29.05M | 0.38% | Add |
| Arrowstreet Capital history | Q4 2025 | 1.07M | $25.09M | 0.01% | Reduce |
| BNY Mellon history | Q2 2026 | 1.38M | $24.77M | 0.00% | Reduce |
| Citigroup Inc history | Q2 2026 | 1.25M | $22.39M | 0.01% | Add |
| Principal Global Investors history | Q2 2026 | 1.19M | $21.41M | 0.01% | Hold |
| Bank of America Corp history | Q2 2026 | 1.16M | $20.76M | 0.00% | Reduce |
New Positions (Q2 2026)
- JPMorgan Chase & Co 2.61M sh · $45.69M
- Two Sigma Investments 19.77K sh · $354.49K
Fully Exited (vs previous quarter)
- Janus Henderson Group sold 4.04M sh · $75.16M
- Polen Capital Management sold 24.92K sh · $463.28K
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q3 2021 | Q4 2021 | Q1 2022 | Q2 2022 | Q3 2022 | Q4 2022 | Q1 2023 | Q2 2023 | Q3 2023 | Q4 2023 | Q1 2024 | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BlackRock Inc | — | — | — | — | — | — | — | — | — | — | — | — | 15.97M | 16.10M | 16.14M | 17.01M | 36.43M | 38.20M | 37.86M | 38.26M |
| Goldman Sachs Group | — | 53.27M | 53.18M | 52.30M | 51.76M | 34.79M | 34.81M | 34.80M | 34.80M | 34.81M | 34.81M | 37.98M | 34.81M | 8.88M | 579.64K | 638.26K | 5.05M | 5.25M | 7.35M | 10.41M |
| Fidelity Management & Research (FMR) | — | 7.50M | 8.47M | 8.57M | 8.79M | 9.29M | 8.65M | 4.71M | 493.25K | 14.18K | 4.57K | 5.01K | 17.96K | 302.29K | 321.79K | 947.00K | 9.08M | 8.41M | 6.55M | 7.33M |
| Geode Capital Management | — | 886.60K | 912.21K | 2.08M | 2.29M | 2.38M | 2.45M | 3.16M | 3.88M | 4.09M | 4.20M | 4.36M | 4.50M | 4.57M | 4.74M | 4.74M | 5.63M | 5.79M | 5.94M | 6.28M |
| Maverick Capital | — | — | — | — | — | — | — | — | — | — | 40.77K | 159.81K | 183.43K | 6.57M | 8.40M | 5.31M | 2.59M | — | 2.65M | 5.25M |
| Baron Funds | — | 3.80M | 3.80M | 1.19M | 558.30K | 558.30K | 150.00K | — | — | — | — | — | — | — | — | — | 500.00K | 650.00K | 1.21M | 3.91M |
| Morgan Stanley | — | 1.71M | 1.81M | 1.70M | 1.78M | 1.14M | 1.15M | 1.46M | 1.65M | 1.59M | 1.01M | 584.65K | 869.20K | 1.05M | 1.22M | 1.47M | 1.31M | 2.10M | 2.29M | 3.90M |
| Invesco Ltd | — | — | 57.08K | 116.57K | 112.86K | 112.61K | 183.70K | 196.38K | 202.79K | 281.68K | 254.53K | 248.56K | 264.25K | 490.81K | 321.84K | 2.62M | 2.76M | 3.10M | 2.29M | 2.77M |
| UBS Group AG | — | 141.15K | 114.00K | 58.00K | 10.00K | 7.17K | 53.54K | 136.66K | 134.40K | 369.37K | 578.00K | 424.92K | 644.46K | 1.55M | 1.50M | 1.70M | 4.80M | 4.85M | 3.77M | 2.69M |
| Northern Trust Corp | — | 196.84K | 193.75K | 1.18M | 1.19M | 1.22M | 1.19M | 1.62M | 1.75M | 1.75M | 1.71M | 1.66M | 1.71M | 2.04M | 1.97M | 1.93M | 2.35M | 2.33M | 2.37M | 2.59M |
| JPMorgan Chase & Co | — | 1.13K | — | 113.07K | 121.14K | 135.04K | 3.51K | 232.64K | 237.77K | 338.20K | 592.71K | 349.72K | 220.13K | 598.05K | 287.37K | 825.27K | 238.34K | 1.67M | — | 2.61M |
| Charles Schwab Investment Management | — | 501.71K | 522.52K | 814.34K | 922.42K | 942.35K | 940.33K | 1.09M | 1.44M | 1.46M | 1.48M | 1.52M | 1.56M | 1.60M | 1.64M | 1.68M | 2.23M | 2.34M | 2.28M | 2.45M |
| Davidson Kempner Capital Management | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 75.00K | 928.51K | 1.31M | 1.62M |
| BNY Mellon | — | 48.87K | 48.96K | 486.74K | 537.43K | 539.06K | 458.64K | 672.95K | 717.66K | 772.74K | 718.87K | 816.75K | 648.18K | 661.43K | 669.14K | 669.30K | 1.36M | 3.08M | 4.54M | 1.38M |
| Citigroup Inc | — | — | — | 11.78K | 5.28K | 4.16K | 10.91K | 64.64K | 504.55K | 443.38K | 74.25K | 106.56K | 174.55K | 187.32K | 165.87K | 257.10K | 480.37K | 377.91K | 1.05M | 1.25M |
| Principal Global Investors | — | 852.35K | 798.68K | 806.52K | 814.41K | 810.23K | 15.61K | 21.29K | 29.62K | 25.26K | 23.04K | 20.56K | 14.72K | 12.24K | 14.06K | 115.36K | 1.40M | 1.71M | 1.20M | 1.19M |
| Bank of America Corp | — | 50.80K | 71.87K | 26.91K | 32.73K | 177.78K | 244.69K | 253.85K | 179.35K | 123.52K | 359.50K | 186.61K | 235.03K | 201.73K | 588.62K | 1.38M | 1.42M | 1.36M | 1.36M | 1.16M |
| Wellington Management Group | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 248.78K | 837.81K | 1.10M |
| Millennium Management | — | 839.99K | 458.46K | — | — | — | — | — | — | — | — | 533.53K | 1.55M | 3.11M | 2.57M | 2.88M | 521.02K | — | 5.42M | 991.74K |
| Franklin Resources | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 668.16K | 1.04M | 1.88M | 2.00M | 884.48K |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details