CENX
Century Aluminum Company · Basic Materials · Aluminum
Momentum inputs (comparable managers):
holder breadth -13.3% ·
share flow +1.3% ·
net new positions -15.4%
· formula
Concentrated accumulation: rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | -1 | 1.09M | $39.34M | n/a | −2 |
| Q2 2026 | 110 | +7 | 53.58M | $2.47B | +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 | n/a | −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 | n/a | 5.53M | $92.60M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 3.24M | -2.9% | $60.12M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | Citadel Advisors ✦ | 1.99M | +532.6% | $36.87M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 3 | Fisher Asset Management ✦ | 1.32M | -4.2% | $24.57M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 1.29M | +1.2% | $24.03M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 5 | Wellington Management ✦ | 693.75K | +68.5% | $12.88M | 0.0% | ▲ Add | 4 | SEC ↗ ×4 |
| 6 | Adage Capital Partners ✦ | 255.00K | New | $4.73M | 0.0% | New | 1 | SEC ↗ |
| 7 | Two Sigma Investments ✦ | 192.50K | -59.0% | $3.57M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 8 | Bridgewater Associates ✦ | 73.51K | -83.0% | $1.36M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 9 | Norges Bank ✦ (passive) | 71.15K | -41.8% | $1.32M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 10 | T. Rowe Price ✦ | 44.56K | +18.1% | $828,000 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 39.00K | +22.1% | $723,858 | 0.0% | ▲ Add | 4 | SEC ↗ ×5 |
| 12 | Millennium Management ✦ | 33.80K | -92.6% | $627,347 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 13 | D. E. Shaw & Co. ✦ | 28.38K | -79.0% | $526,714 | 0.0% | ▼ Trim | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Adage Capital Partners | $4.73M | 0.0% |
Exited
| Arrowstreet Capital | $9.05M | was 0.0% |
| Renaissance Technologies | $4.19M | was 0.0% |
| Marshall Wace | $313,275 | 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.