MIR
Mirion Technologies, Inc. · Industrials · Industrial - Machinery
Momentum inputs (comparable managers):
holder breadth +27.3% ·
share flow +22.6% ·
net new positions +20.0%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 114 | -1 | 168.27M | $3.02B | +7 | −8 |
| Q1 2026 | 118 | +2 | 167.83M | $3.12B | +9 | −8 |
| Q4 2025 | 115 | +1 | 179.63M | $4.21B | +4 | −2 |
| Q3 2025 | 16 | -3 | 103.12M | $2.40B | — | −3 |
| Q2 2025 | 16 | +2 | 59.41M | $1.28B | +3 | −1 |
| Q1 2025 | 11 | -3 | 18.78M | $272.38M | +1 | −4 |
| Q4 2024 | 14 | +3 | 19.46M | $339.68M | +4 | −1 |
| Q3 2024 | 10 | +3 | 10.67M | $118.13M | +3 | — |
| Q2 2024 | 7 | — | 9.18M | $98.62M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 5.20M | — | $90.76M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 4.57M | +1.5% | $79.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 4.57M | +1.5% | $79.80M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | Arrowstreet Capital ✦ | 4.21M | +29948.6% | $73.55M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 5 | Millennium Management ✦ | 3.11M | +100.6% | $54.19M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | GAMCO Investors ✦ | 599.63K | -5.5% | $10.46M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 7 | Duquesne Family Office ✦ | 342.70K | New | $5.98M | 0.2% | New | 1 | SEC ↗ |
| 8 | D. E. Shaw & Co. ✦ | 319.54K | New | $5.58M | 0.0% | New | 1 | SEC ↗ |
| 9 | D. E. Shaw & Co. ✦ | 319.54K | New | $5.58M | 0.0% | New | 1 | SEC ↗ |
| 10 | Bridgewater Associates ✦ | 243.75K | New | $4.25M | 0.0% | New | 1 | SEC ↗ |
| 11 | Marshall Wace ✦ | 239.44K | +287.5% | $4.18M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | Marshall Wace ✦ | 239.44K | +287.5% | $4.18M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 13 | Renaissance Technologies ✦ | 145.01K | +28.3% | $2.53M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | Adage Capital Partners ✦ | 140.96K | -96.1% | $2.46M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 15 | T. Rowe Price ✦ | 140.28K | +13.7% | $2.45M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | Citadel Advisors ✦ | 111.24K | +378.2% | $1.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 17 | AQR Capital Management ✦ | 88.81K | New | $1.55M | 0.0% | New | 1 | SEC ↗ |
| 18 | AQR Capital Management ✦ | 88.81K | New | $1.55M | 0.0% | New | 1 | SEC ↗ |
| 19 | AQR Capital Management ✦ | 88.81K | New | $1.55M | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Duquesne Family Office | $5.98M | 0.2% |
| D. E. Shaw & Co. | $5.58M | 0.0% |
| D. E. Shaw & Co. | $5.58M | 0.0% |
| Bridgewater Associates | $4.25M | 0.0% |
| AQR Capital Management | $1.55M | 0.0% |
| AQR Capital Management | $1.55M | 0.0% |
| AQR Capital Management | $1.55M | 0.0% |
Exited
| Gotham Asset Management | $321,141 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 358 holders, 250.83M shares, $4.35B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.