Century Aluminum Co
CENX- Exchange
- Nasdaq
- Industry
- Primary Production of Aluminum
- SEC CIK
- 0000949157
No open-market purchases or sales by Century Aluminum Co insiders were filed in the last 90 days; 416 institutions reported holding it in 13F filings for Q2 2026, worth $4.79B in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Century Aluminum Co as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 326
- +76 vs. Q3 2025
- Shares held
- 99.9M
- +3.63M (+3.8%) vs. Q3 2025
- Total value
- $3.92B
- +$1.09B (+38.5%) vs. Q3 2025
- New holders
- 103
- 108 more added
- Sold out
- 27
- 92 more reduced
5 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CENX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 416 | $4.79B |
| Q1 2026 | 387 | $5.92B |
| Q4 2025 | 326 | $3.92B |
| Q3 2025 | 255 | $2.83B |
| Q2 2025 | 222 | $1.72B |
| Q1 2025 | 218 | $1.72B |
| Q4 2024 | 222 | $1.68B |
| Q3 2024 | 197 | $892.4M |
| Q2 2024 | 191 | $923.2M |
| Q1 2024 | 180 | $829.8M |
| Q4 2023 | 171 | $693.3M |
| Q3 2023 | 162 | $378.2M |
| Q2 2023 | 160 | $438.5M |
| Q1 2023 | 168 | $518.2M |
| Q4 2022 | 169 | $423.5M |
| Q3 2022 | 176 | $269.4M |
| Q2 2022 | 172 | $415.9M |
| Q1 2022 | 190 | $1.39B |
| Q4 2021 | 164 | $844.8M |
| Q3 2021 | 148 | $674.8M |
| Q2 2021 | 146 | $673.3M |
| Q1 2021 | 139 | $823.3M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Century Aluminum Co; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Glencore plc | 36,005,947 | $1.41B | 32.56% | −4,051,409−10.1% | Reduced |
| BlackRock, Inc. | 9,484,567 | $371.6M | 0.01% | −643,392−6.4% | Reduced |
| Vanguard Group Inc | 6,939,794 | $271.9M | 0.00% | +1,094,257+18.7% | Added |
| State Street Corp | 4,295,711 | $168.3M | 0.01% | +77,895+1.8% | Added |
| Sourcerock Group LLC | 3,621,984 | $141.9M | 8.12% | +981,519+37.2% | Added |
| Dimensional Fund Advisors LP | 2,765,132 | $108.3M | 0.02% | −296,102−9.7% | Reduced |
| Morgan Stanley | 1,609,093 | $63.0M | 0.00% | +176,730+12.3% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 1,493,823 | $58.5M | 0.09% | +36,422+2.5% | Added |
| Millennium Management LLC | 1,418,032 | $55.6M | 0.04% | +975,359+220.3% | Added |
| Geode Capital Management, LLC | 1,318,503 | $51.7M | 0.00% | −4930.0% | Reduced |
| D. E. Shaw & Co., Inc. | 1,190,937 | $46.7M | 0.04% | +989,343+490.8% | Added |
| UBS Group AG | 1,111,273 | $43.5M | 0.01% | +636,796+134.2% | Added |
| American Century Companies Inc | 974,241 | $38.2M | 0.02% | +206,549+26.9% | Added |
| Voloridge Investment Management, LLC | 940,325 | $36.8M | 0.13% | +143,442+18.0% | Added |
| Assenagon Asset Management S.A. | 872,753 | $34.2M | 0.05% | +464,814+113.9% | Added |
| Fisher Asset Management, LLC | 866,944 | $34.0M | 0.01% | −99,631−10.3% | Reduced |
| Impala Asset Management LLC | 857,805 | $33.6M | 21.17% | +168,805+24.5% | Added |
| UBS Asset Management Americas Inc | 747,087 | $29.3M | 0.01% | −112,813−13.1% | Reduced |
| Qube Research & Technologies Ltd | 726,192 | $28.5M | 0.04% | −96,938−11.8% | Reduced |
| Citadel Advisors LLC | 697,217 | $27.3M | 0.02% | −808,479−53.7% | Reduced |
| Goldman Sachs Group Inc | 665,702 | $26.1M | 0.00% | +115,599+21.0% | Added |
| Invesco Ltd. | 629,412 | $24.7M | 0.00% | −220,110−25.9% | Reduced |
| Mountaineer Partners Management, LLC | 608,475 | $23.8M | 13.34% | −52,568−8.0% | Reduced |
| Boston Partners | 600,237 | $23.5M | 0.02% | −539,424−47.3% | Reduced |
| Charles Schwab Investment Management Inc | 535,924 | $21.0M | 0.00% | −6,366−1.2% | Reduced |
| Northern Trust Corp | 521,762 | $20.4M | 0.00% | +3,600+0.7% | Added |
| Burkehill Global Management, LP | 500,000 | $19.6M | 1.29% | +500,000 | New |
| Encompass Capital Advisors LLC | 499,837 | $19.6M | 0.94% | −311,325−38.4% | Reduced |
| Allspring Global Investments Holdings, LLC | 455,876 | $18.7M | 0.03% | +434,097+1,993.2% | Added |
| Antipodes Partners Ltd | 423,789 | $16.6M | 0.35% | +423,789 | New |
| Steamboat Capital Partners, LLC | 423,808 | $16.6M | 4.56% | −48,121−10.2% | Reduced |
| Principal Financial Group Inc | 400,637 | $15.7M | 0.01% | +49,779+14.2% | Added |
| Westend Capital Management, LLC | 374,274 | $14.7M | 4.11% | +374,274 | New |
| Tudor Investment Corp Et Al | 365,857 | $14.3M | 0.08% | +365,857 | New |
| CDC Financial, Inc. | 344,200 | $13.5M | 12.46% | +344,200 | New |
| Bank of New York Mellon Corp | 335,401 | $13.1M | 0.00% | −1,479−0.4% | Reduced |
| South Dakota Investment Council | 317,361 | $12.4M | 0.24% | −63,800−16.7% | Reduced |
| Royce & Associates LP | 314,289 | $12.3M | 0.12% | +165,829+111.7% | Added |
| Drummond Knight Asset Management Pty Ltd | 313,376 | $12.3M | 3.44% | +313,376 | New |
| Bank of America Corp | 307,526 | $12.0M | 0.00% | −89,705−22.6% | Reduced |
| First Eagle Investment Management, LLC | 301,612 | $11.8M | 0.02% | −38,541−11.3% | Reduced |
| Nicholas Investment Partners, LP | 290,960 | $11.4M | 0.83% | +290,960 | New |
| BCJ Capital Management, LLC | 281,376 | $11.0M | 0.64% | +281,376 | New |
| Bridgewater Associates, LP | 271,798 | $10.6M | 0.04% | +271,798 | New |
| Walleye Trading LLC | 250,562 | $9.82M | 0.16% | +136,490+119.7% | Added |
| Bornite Capital Management LP | 250,000 | $9.79M | 0.96% | +250,000 | New |
| Wexford Capital LP | 244,649 | $9.59M | 2.47% | +38,136+18.5% | Added |
| Icon Advisers Inc | 242,000 | $9.48M | 2.05% | 00.0% | Unchanged |
| Baird Financial Group, Inc. | 240,610 | $9.43M | 0.01% | +86,032+55.7% | Added |
| CSM Advisors, LLC | 224,180 | $8.78M | 0.24% | −74,024−24.8% | Reduced |
| Hartree Partners, LP | 216,688 | $8.49M | 3.10% | −1,077−0.5% | Reduced |
| JPMorgan Chase & Co | 214,173 | $8.39M | 0.00% | −210,079−49.5% | Reduced |
| Susquehanna International Group, LLP | 210,483 | $8.25M | 0.01% | −7,668−3.5% | Reduced |
| Wells Fargo & Company | 206,691 | $8.10M | 0.00% | +50,271+32.1% | Added |
| Congress Asset Management Co | 206,439 | $8.09M | 0.06% | +3,830+1.9% | Added |
| Wellington Management Group LLP | 197,843 | $7.75M | 0.00% | +3,749+1.9% | Added |
| Public Sector Pension Investment Board | 184,343 | $7.22M | 0.02% | −23,178−11.2% | Reduced |
| BW Gestao de Investimentos Ltda. | 183,669 | $7.20M | 0.25% | +83,669+83.7% | Added |
| State of Wisconsin Investment Board | 173,939 | $6.81M | 0.02% | +46,239+36.2% | Added |
| Point72 Asset Management, L.P. | 172,408 | $6.75M | 0.01% | +172,408 | New |
| Systematic Financial Management LP | 166,527 | $6.52M | 0.15% | +166,527 | New |
| Edgestream Partners, L.P. | 157,424 | $6.17M | 0.17% | +557+0.4% | Added |
| ExodusPoint Capital Management, LP | 155,087 | $6.08M | 0.07% | +155,087 | New |
| Insight Wealth Strategies, LLC | 154,066 | $6.04M | 0.69% | +154,066 | New |
| Wealth High Governance Asset Management Ltda. | 152,566 | $5.98M | 1.07% | +152,566 | New |
| Rhumbline Advisers | 151,349 | $5.93M | 0.00% | +4,095+2.8% | Added |
| Boothbay Fund Management, LLC | 147,795 | $5.79M | 0.15% | +27,877+23.2% | Added |
| Russell Investments Group, Ltd. | 147,792 | $5.79M | 0.01% | −110,213−42.7% | Reduced |
| Kailix Advisors LLC | 146,550 | $5.74M | 6.40% | +146,550 | New |
| Cohen & Steers, Inc. | 142,769 | $5.59M | 0.01% | −56,231−28.3% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 141,200 | $5.53M | 0.12% | +91,086+181.8% | Added |
| Raymond James Financial Inc | 130,259 | $5.10M | 0.00% | +539+0.4% | Added |
| Schonfeld Strategic Advisors LLC | 127,957 | $5.01M | 0.03% | +83,609+188.5% | Added |
| Legal & General Group Plc | 125,404 | $4.91M | 0.00% | −7,995−6.0% | Reduced |
| Adage Capital Partners GP, L.L.C. | 120,000 | $4.70M | 0.01% | −175,000−59.3% | Reduced |
| Renaissance Technologies LLC | 117,999 | $4.62M | 0.01% | −247,100−67.7% | Reduced |
| Nuveen, LLC | 117,310 | $4.60M | 0.00% | +657+0.6% | Added |
| Great West Life Assurance Co | 116,511 | $4.57M | 0.01% | +71,655+159.7% | Added |
| Woodline Partners LP | 115,294 | $4.52M | 0.02% | −104,970−47.7% | Reduced |
| Quantbot Technologies LP | 112,966 | $4.43M | 0.15% | +79,137+233.9% | Added |
| Swiss National Bank | 110,450 | $4.33M | 0.00% | +2,000+1.8% | Added |
| Walleye Capital LLC | 108,751 | $4.26M | 0.02% | +108,690+178,180.3% | Added |
| Deutsche Bank AG | 108,278 | $4.24M | 0.00% | +3,292+3.1% | Added |
| Marnell Management LLC | 107,056 | $4.19M | 3.19% | +107,056 | New |
| Victory Capital Management Inc | 106,990 | $4.19M | 0.00% | +983+0.9% | Added |
| Trexquant Investment LP | 106,716 | $4.18M | 0.04% | −82,639−43.6% | Reduced |
| Jefferies Financial Group Inc. | 106,700 | $4.18M | 0.03% | −106,650−50.0% | Reduced |
| Barclays PLC | 104,819 | $4.11M | 0.00% | +18,489+21.4% | Added |
| Bessemer Group Inc | 102,393 | $4.01M | 0.01% | +102,204+54,076.2% | Added |
| Caxton Associates LLP | 101,449 | $3.97M | 0.08% | +39,092+62.7% | Added |
| Thomist Capital Management, LP | 100,000 | $3.97M | 1.08% | +16,009+19.1% | Added |
| Segall Bryant & Hamill, LLC | 99,528 | $3.90M | 0.05% | +57,959+139.4% | Added |
| BNP Paribas Arbitrage, SA | 99,079 | $3.88M | 0.00% | −17,140−14.7% | Reduced |
| Voleon Capital Management LP | 97,790 | $3.83M | 0.08% | +29,760+43.7% | Added |
| Ameriprise Financial Inc | 97,550 | $3.82M | 0.00% | −45,259−31.7% | Reduced |
| Wealth High Governance Capital Ltda | 97,434 | $3.82M | 1.12% | −52,566−35.0% | Reduced |
| First Trust Advisors LP | 97,419 | $3.82M | 0.00% | +97,419 | New |
| Campbell & CO Investment Adviser LLC | 97,144 | $3.81M | 0.18% | −46,000−32.1% | Reduced |
| EAM Investors, LLC | 94,627 | $3.71M | 0.41% | +94,627 | New |
| Atom Investors LP | 83,374 | $3.27M | 0.26% | +83,374 | New |