Security record · archived quarter
CENX
Century Aluminum Company · Basic Materials · Aluminum
108Tracked holders
+3Δ holders
48.84MShares held
$2.86BReported value
+8New positions
−5Exits
Momentum inputs (comparable managers):
holder breadth +2.9% ·
share flow +15.4% ·
net new positions +2.8%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 111 | +6 | 53.91M | $2.48B | +13 | −7 |
| 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 | — | — |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 9.01M | -5.0% | $528.82M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 9.01M | -5.0% | $528.82M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 9.01M | -5.0% | $528.82M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 9.01M | -5.0% | $528.82M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 9.01M | -5.0% | $528.82M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 9.01M | -5.0% | $528.82M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 9.01M | -5.0% | $528.82M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 9.01M | -5.0% | $528.82M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 9.01M | -5.0% | $528.82M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 9.01M | -5.0% | $528.82M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 9.01M | -5.0% | $528.82M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 9.01M | -5.0% | $528.82M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 9.01M | -5.0% | $528.82M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 14 | State Street Global Advisors ✦ (passive) | 4.67M | +8.7% | $273.94M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 15 | Fidelity (FMR) ✦ | 2.66M | +30454.3% | $156.12M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 16 | Fidelity (FMR) ✦ | 2.66M | +30454.3% | $156.12M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 17 | Fidelity (FMR) ✦ | 2.66M | +30454.3% | $156.12M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 18 | Fidelity (FMR) ✦ | 2.66M | +30454.3% | $156.12M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 19 | Fidelity (FMR) ✦ | 2.66M | +30454.3% | $156.12M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 20 | Vanguard Capital Management Llc | 2.59M | — | $151.78M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | Dimensional Fund Advisors Lp | 2.19M | -20.8% | $128.55M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 22 | Dimensional Fund Advisors Lp | 2.19M | -20.8% | $128.55M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 23 | Dimensional Fund Advisors Lp | 2.19M | -20.8% | $128.55M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 24 | Dimensional Fund Advisors Lp | 2.19M | -20.8% | $128.55M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 25 | Dimensional Fund Advisors Lp | 2.19M | -20.8% | $128.55M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 26 | Invesco Ltd. | 2.08M | +229.9% | $121.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 27 | Invesco Ltd. | 2.08M | +229.9% | $121.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 28 | Invesco Ltd. | 2.08M | +229.9% | $121.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 29 | Invesco Ltd. | 2.08M | +229.9% | $121.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 30 | Invesco Ltd. | 2.08M | +229.9% | $121.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 31 | Invesco Ltd. | 2.08M | +229.9% | $121.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 32 | Invesco Ltd. | 2.08M | +229.9% | $121.87M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 33 | Millennium Management ✦ | 1.99M | +40.2% | $116.65M | 0.1% | ▲ Add | 8 | SEC ↗ |
| 34 | Assenagon Asset Management S.A. | 1.83M | +109.7% | $107.42M | 0.2% | ▲ Add | 2 | SEC ↗ |
| 35 | Morgan Stanley ✦ | 1.59M | -1.5% | $93.04M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 36 | Morgan Stanley ✦ | 1.59M | -1.5% | $93.04M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 37 | Morgan Stanley ✦ | 1.59M | -1.5% | $93.04M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 38 | Morgan Stanley ✦ | 1.59M | -1.5% | $93.04M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 39 | Morgan Stanley ✦ | 1.59M | -1.5% | $93.04M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 40 | Morgan Stanley ✦ | 1.59M | -1.5% | $93.04M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 41 | Morgan Stanley ✦ | 1.59M | -1.5% | $93.04M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 42 | Morgan Stanley ✦ | 1.59M | -1.5% | $93.04M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 43 | Morgan Stanley ✦ | 1.59M | -1.5% | $93.04M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 44 | Geode Capital Management ✦ (passive) | 1.54M | +16.8% | $90.41M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 45 | Geode Capital Management ✦ (passive) | 1.54M | +16.8% | $90.41M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 46 | D. E. Shaw & Co. ✦ | 1.43M | +20.4% | $84.12M | 0.1% | ▲ Add | 8 | SEC ↗ |
| 47 | D. E. Shaw & Co. ✦ | 1.43M | +20.4% | $84.12M | 0.1% | ▲ Add | 8 | SEC ↗ |
| 48 | Jane Street Group, Llc | 1.32M | +3081.6% | $77.53M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 49 | Jane Street Group, Llc | 1.32M | +3081.6% | $77.53M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 50 | Jane Street Group, Llc | 1.32M | +3081.6% | $77.53M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 51 | Citadel Advisors ✦ | 1.32M | +89.5% | $77.52M | 0.1% | ▲ Add | 8 | SEC ↗ |
| 52 | Citadel Advisors ✦ | 1.32M | +89.5% | $77.52M | 0.1% | ▲ Add | 8 | SEC ↗ |
| 53 | Fisher Asset Management ✦ | 851.30K | -1.8% | $49.96M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 54 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 800.13K | -46.4% | $46.95M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 55 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 800.13K | -46.4% | $46.95M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 56 | Bridgewater Associates ✦ | 732.52K | +169.5% | $42.99M | 0.2% | ▲ Add | 2 | SEC ↗ |
| 57 | Bank Of America Corp /De/ | 608.79K | +98.0% | $35.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 58 | Bank Of America Corp /De/ | 608.79K | +98.0% | $35.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 59 | Bank Of America Corp /De/ | 608.79K | +98.0% | $35.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 60 | Bank Of America Corp /De/ | 608.79K | +98.0% | $35.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 61 | Allspring Global Investments… | 562.03K | +23.3% | $35.69M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 62 | Allspring Global Investments… | 562.03K | +23.3% | $35.69M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 63 | Allspring Global Investments… | 562.03K | +23.3% | $35.69M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 64 | Deutsche Bank Ag\ | 598.02K | +452.3% | $35.10M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 65 | Deutsche Bank Ag\ | 598.02K | +452.3% | $35.10M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 66 | Qube Research & Technologies Ltd | 589.93K | -18.8% | $34.62M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 67 | UBS Group AG | 586.77K | -47.2% | $34.44M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 68 | UBS Group AG | 586.77K | -47.2% | $34.44M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 69 | Point72 Asset Management ✦ | 569.45K | +230.3% | $33.42M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 70 | Northern Trust Corp | 548.74K | +5.2% | $32.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 71 | Northern Trust Corp | 548.74K | +5.2% | $32.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 72 | Northern Trust Corp | 548.74K | +5.2% | $32.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 73 | Northern Trust Corp | 548.74K | +5.2% | $32.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 74 | Northern Trust Corp | 548.74K | +5.2% | $32.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 75 | Charles Schwab Investment… | 544.51K | +1.6% | $31.96M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 76 | JPMorgan Chase ✦ | 516.62K | +141.2% | $27.51M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 77 | JPMorgan Chase ✦ | 516.62K | +141.2% | $27.51M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 78 | JPMorgan Chase ✦ | 516.62K | +141.2% | $27.51M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 79 | JPMorgan Chase ✦ | 516.62K | +141.2% | $27.51M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 80 | JPMorgan Chase ✦ | 516.62K | +141.2% | $27.51M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 81 | Squarepoint Ops LLC | 410.09K | +1001.8% | $24.07M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 82 | Goldman Sachs Group ✦ | 379.15K | -43.0% | $22.25M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 83 | Goldman Sachs Group ✦ | 379.15K | -43.0% | $22.25M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 84 | Wellington Management ✦ | 378.45K | +91.3% | $22.21M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 85 | Wellington Management ✦ | 378.45K | +91.3% | $22.21M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 86 | Wellington Management ✦ | 378.45K | +91.3% | $22.21M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 87 | Wellington Management ✦ | 378.45K | +91.3% | $22.21M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 88 | Bank of New York Mellon Corp | 335.86K | +0.1% | $19.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 89 | Bank of New York Mellon Corp | 335.86K | +0.1% | $19.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 90 | Bank of New York Mellon Corp | 335.86K | +0.1% | $19.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 91 | Bank of New York Mellon Corp | 335.86K | +0.1% | $19.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 92 | Bank of New York Mellon Corp | 335.86K | +0.1% | $19.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 93 | Bank of New York Mellon Corp | 335.86K | +0.1% | $19.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 94 | Bank of New York Mellon Corp | 335.86K | +0.1% | $19.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 95 | Bank of New York Mellon Corp | 335.86K | +0.1% | $19.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 96 | Bank of New York Mellon Corp | 335.86K | +0.1% | $19.71M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 97 | Boston Partners | 309.90K | -48.4% | $18.19M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 98 | Nuveen, LLC | 308.98K | +163.4% | $18.13M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 99 | Nuveen, LLC | 308.98K | +163.4% | $18.13M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 100 | Nuveen, LLC | 308.98K | +163.4% | $18.13M | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Walleye Trading LLC | $9.82M | was 0.2% |
| Adage Capital Partners | $4.70M | was 0.0% |
| Nomura Holdings Inc | $3.11M | was 0.0% |
| Parallax Volatility Advisers… | $2.40M | was 0.1% |
| Group One Trading Llc | $26,760 | 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.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q1 2026 ·
Methodology ·
Get this via the API