RIO
Rio Tinto Group · Basic Materials · Industrial Materials
Momentum inputs (comparable managers):
holder breadth +6.7% ·
share flow -9.4% ·
net new positions +6.2%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 122 | +4 | 100.24M | $9.52B | +9 | −4 |
| Q1 2026 | 118 | -1 | 102.35M | $9.53B | +7 | −9 |
| Q4 2025 | 118 | +2 | 102.24M | $8.18B | +3 | — |
| Q3 2025 | 19 | -1 | 54.07M | $3.57B | +1 | −3 |
| Q2 2025 | 18 | 0 | 34.19M | $1.99B | +1 | −1 |
| Q1 2025 | 16 | 0 | 39.04M | $2.35B | +2 | −2 |
| Q4 2024 | 16 | +1 | 42.20M | $2.48B | +1 | — |
| Q3 2024 | 14 | 0 | 46.57M | $3.32B | +1 | −1 |
| Q2 2024 | 14 | — | 46.89M | $3.09B | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Wellington Management ✦ | 18.78M | -12.1% | $1.10B | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 2 | Wellington Management ✦ | 18.78M | -12.1% | $1.10B | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 3 | Wellington Management ✦ | 18.78M | -12.1% | $1.10B | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 4 | Wellington Management ✦ | 18.78M | -12.1% | $1.10B | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 5 | Wellington Management ✦ | 18.78M | -12.1% | $1.10B | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 6 | Wellington Management ✦ | 18.78M | -12.1% | $1.10B | 0.2% | ▼ Trim | 3 | SEC ↗ |
| 7 | Fisher Asset Management ✦ | 17.60M | +0.4% | $1.04B | 0.4% | ▲ Add | 3 | SEC ↗ |
| 8 | Capital World Investors ✦ | 2.83M | -42.7% | $166.61M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 9 | D. E. Shaw & Co. ✦ | 657.92K | -43.4% | $38.69M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | D. E. Shaw & Co. ✦ | 657.92K | -43.4% | $38.69M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | Adage Capital Partners ✦ | 590.00K | -18.6% | $34.70M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 12 | Bridgewater Associates ✦ | 494.75K | +94.2% | $29.10M | 0.1% | ▲ Add | 3 | SEC ↗ |
| 13 | Renaissance Technologies ✦ | 471.40K | +113.7% | $27.72M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | Citadel Advisors ✦ | 297.36K | +29254.4% | $17.49M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 15 | Arrowstreet Capital ✦ | 250.56K | +119.5% | $14.74M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | Millennium Management ✦ | 191.68K | -14.2% | $11.27M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 17 | Norges Bank ✦ (passive) | 7.35K | 0.0% | $432,430 | 0.0% | Held | 3 | SEC ↗ |
| 18 | Marshall Wace ✦ | 7.13K | New | $419,080 | 0.0% | New | 1 | SEC ↗ |
| 19 | Marshall Wace ✦ | 7.13K | New | $419,080 | 0.0% | New | 1 | SEC ↗ |
| 20 | AQR Capital Management ✦ | 6.78K | +28.4% | $398,542 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 21 | AQR Capital Management ✦ | 6.78K | +28.4% | $398,542 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 22 | Dodge & Cox ✦ | 4.00K | 0.0% | $235,240 | 0.0% | Held | 3 | SEC ↗ |
| 23 | State Street Global Advisors ✦ (passive) | 3.85K | — | $226,360 | 0.0% | n/c | 1 | SEC ↗ |
| 24 | Baillie Gifford ✦ | 319 | +13.1% | $18,760 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 25 | Baillie Gifford ✦ | 319 | +13.1% | $18,760 | 0.0% | ▲ Add | 3 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Marshall Wace | $419,080 | 0.0% |
| Marshall Wace | $419,080 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 89.92K shares, $11.91M 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.