CENX
Century Aluminum Company · Basic Materials · Aluminum
Momentum inputs (comparable managers):
holder breadth -6.2% ·
share flow +10.6% ·
net new positions -6.7%
— formula
Concentrated accumulation — rising shares among fewer 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 | 110 | +6 | 53.54M | $2.46B | +13 | −8 |
| Q1 2026 | 108 | +3 | 48.84M | $2.86B | +8 | −5 |
| Q4 2025 | 104 | +2 | 46.68M | $1.83B | +3 | −1 |
| Q3 2025 | 18 | -2 | 28.46M | $835.48M | — | −2 |
| Q2 2025 | 17 | +1 | 26.82M | $483.25M | +3 | −2 |
| Q1 2025 | 13 | -2 | 9.28M | $172.16M | +1 | −3 |
| Q4 2024 | 15 | -1 | 9.15M | $166.76M | +1 | −2 |
| Q3 2024 | 15 | +1 | 4.94M | $80.16M | +2 | −1 |
| Q2 2024 | 14 | — | 5.53M | $92.60M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 3.34M | — | $60.80M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Fisher Asset Management ✦ | 1.38M | -16.5% | $25.17M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 1.28M | -0.1% | $23.31M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 1.28M | -0.1% | $23.31M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 5 | Arrowstreet Capital ✦ | 496.97K | +348.4% | $9.05M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | Two Sigma Investments ✦ | 469.02K | -26.7% | $8.55M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 7 | Millennium Management ✦ | 457.73K | +381.1% | $8.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | Bridgewater Associates ✦ | 431.28K | +74.3% | $7.86M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | Wellington Management ✦ | 411.59K | +0.6% | $7.50M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | Wellington Management ✦ | 411.59K | +0.6% | $7.50M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | Wellington Management ✦ | 411.59K | +0.6% | $7.50M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 12 | Citadel Advisors ✦ | 314.03K | +1436.9% | $5.72M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 13 | Citadel Advisors ✦ | 314.03K | +1436.9% | $5.72M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | Renaissance Technologies ✦ | 229.70K | -19.3% | $4.19M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 15 | D. E. Shaw & Co. ✦ | 135.43K | +375.8% | $2.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | D. E. Shaw & Co. ✦ | 135.43K | +375.8% | $2.47M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 17 | Norges Bank ✦ (passive) | 122.25K | +106.1% | $2.23M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 18 | T. Rowe Price ✦ | 37.73K | +9.5% | $688,000 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 19 | AQR Capital Management ✦ | 31.95K | +174.5% | $582,129 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 20 | AQR Capital Management ✦ | 31.95K | +174.5% | $582,129 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 21 | AQR Capital Management ✦ | 31.95K | +174.5% | $582,129 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 22 | AQR Capital Management ✦ | 31.95K | +174.5% | $582,129 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 23 | Marshall Wace ✦ | 17.19K | New | $313,275 | 0.0% | New | 1 | SEC ↗ |
| 24 | Marshall Wace ✦ | 17.19K | New | $313,275 | 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
| Marshall Wace | $313,275 | 0.0% |
| Marshall Wace | $313,275 | 0.0% |
Exited
| Point72 Asset Management | $856,944 | was 0.0% |
| Adage Capital Partners | $162,300 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 378 holders, 99.93M shares, $5.79B 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.