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, Q3 2025
Institutional positions in Century Aluminum Co as of Sep 30, 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
- 255
- +34 vs. Q2 2025
- Shares held
- 96.5M
- +980.6K (+1.0%) vs. Q2 2025
- Total value
- $2.83B
- +$1.11B (+64.6%) vs. Q2 2025
- New holders
- 67
- 83 more added
- Sold out
- 33
- 79 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Century Aluminum Co; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Glencore plc | 40,057,356 | $1.18B | 29.67% | +2,8480.0% | Added |
| BlackRock, Inc. | 10,127,959 | $297.4M | 0.01% | −31,317−0.3% | Reduced |
| Vanguard Group Inc | 5,845,537 | $171.6M | 0.00% | +75,657+1.3% | Added |
| State Street Corp | 4,217,816 | $123.8M | 0.00% | +552,270+15.1% | Added |
| Dimensional Fund Advisors LP | 3,061,234 | $89.9M | 0.02% | −10,750−0.3% | Reduced |
| Sourcerock Group LLC | 2,640,465 | $77.5M | 5.27% | +1,216,377+85.4% | Added |
| Citadel Advisors LLC | 1,505,696 | $44.2M | 0.04% | −416,961−21.7% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 1,457,401 | $42.8M | 0.07% | +27,999+2.0% | Added |
| Morgan Stanley | 1,432,363 | $42.1M | 0.00% | +584,394+68.9% | Added |
| Geode Capital Management, LLC | 1,318,996 | $38.7M | 0.00% | +18,305+1.4% | Added |
| Boston Partners | 1,139,661 | $33.5M | 0.03% | −594,007−34.3% | Reduced |
| Fisher Asset Management, LLC | 966,575 | $28.4M | 0.01% | −97,010−9.1% | Reduced |
| UBS Asset Management Americas Inc | 859,900 | $25.2M | 0.01% | +475,904+123.9% | Added |
| Invesco Ltd. | 849,522 | $24.9M | 0.00% | +312,056+58.1% | Added |
| Qube Research & Technologies Ltd | 823,130 | $24.2M | 0.03% | +282,019+52.1% | Added |
| Encompass Capital Advisors LLC | 811,162 | $23.8M | 1.07% | +706,627+676.0% | Added |
| Voloridge Investment Management, LLC | 796,883 | $23.4M | 0.08% | +255,328+47.1% | Added |
| American Century Companies Inc | 767,692 | $22.5M | 0.01% | +611,758+392.3% | Added |
| Impala Asset Management LLC | 689,000 | $20.2M | 12.56% | −114,894−14.3% | Reduced |
| Mountaineer Partners Management, LLC | 661,043 | $19.4M | 11.29% | −44,107−6.3% | Reduced |
| Goldman Sachs Group Inc | 550,103 | $16.2M | 0.00% | +325,389+144.8% | Added |
| Charles Schwab Investment Management Inc | 542,290 | $15.9M | 0.00% | −9,293−1.7% | Reduced |
| Northern Trust Corp | 518,162 | $15.2M | 0.00% | +9,798+1.9% | Added |
| UBS Group AG | 474,477 | $13.9M | 0.00% | −69,072−12.7% | Reduced |
| Steamboat Capital Partners, LLC | 471,929 | $13.9M | 3.61% | +280,548+146.6% | Added |
| Millennium Management LLC | 442,673 | $13.0M | 0.01% | −69,844−13.6% | Reduced |
| JPMorgan Chase & Co | 424,252 | $12.5M | 0.00% | +277,206+188.5% | Added |
| Assenagon Asset Management S.A. | 407,939 | $12.0M | 0.02% | +207,040+103.1% | Added |
| Bank of America Corp | 397,231 | $11.7M | 0.00% | −605,166−60.4% | Reduced |
| South Dakota Investment Council | 381,161 | $11.2M | 0.22% | −57,258−13.1% | Reduced |
| Renaissance Technologies LLC | 365,099 | $10.7M | 0.01% | +209,500+134.6% | Added |
| Principal Financial Group Inc | 350,858 | $10.3M | 0.01% | +91,647+35.4% | Added |
| First Eagle Investment Management, LLC | 340,153 | $9.99M | 0.02% | +2,097+0.6% | Added |
| Bank of New York Mellon Corp | 336,880 | $9.89M | 0.00% | −6,704−2.0% | Reduced |
| CSM Advisors, LLC | 298,204 | $8.76M | 0.24% | +36,251+13.8% | Added |
| Adage Capital Partners GP, L.L.C. | 295,000 | $8.66M | 0.01% | +5,000+1.7% | Added |
| Royal Bank of Canada | 270,467 | $7.94M | 0.00% | −13,509−4.8% | Reduced |
| Russell Investments Group, Ltd. | 258,005 | $7.58M | 0.01% | +7,680+3.1% | Added |
| Icon Advisers Inc | 242,000 | $7.11M | 1.55% | −83,200−25.6% | Reduced |
| Woodline Partners LP | 220,264 | $6.47M | 0.03% | −1,069,227−82.9% | Reduced |
| Susquehanna International Group, LLP | 218,151 | $6.40M | 0.01% | +154,460+242.5% | Added |
| Hartree Partners, LP | 217,765 | $6.39M | 2.22% | +22,538+11.5% | Added |
| Jefferies Financial Group Inc. | 213,350 | $6.26M | 0.06% | +213,350 | New |
| Public Sector Pension Investment Board | 207,521 | $6.09M | 0.02% | +29,424+16.5% | Added |
| Wexford Capital LP | 206,513 | $6.06M | 1.83% | −1,271,304−86.0% | Reduced |
| Congress Asset Management Co | 202,609 | $5.95M | 0.04% | −14,315−6.6% | Reduced |
| D. E. Shaw & Co., Inc. | 201,594 | $5.92M | 0.00% | −67,074−25.0% | Reduced |
| Cohen & Steers, Inc. | 199,000 | $5.84M | 0.01% | +3,037+1.5% | Added |
| Wellington Management Group LLP | 194,094 | $5.70M | 0.00% | −787,508−80.2% | Reduced |
| Trexquant Investment LP | 189,355 | $5.56M | 0.06% | +189,355 | New |
| Monaco Asset Management SAM | 168,752 | $4.95M | 1.84% | −61,248−26.6% | Reduced |
| Jane Street Group, LLC | 166,246 | $4.88M | 0.01% | +11,640+7.5% | Added |
| Edgestream Partners, L.P. | 156,867 | $4.61M | 0.13% | +156,867 | New |
| Wells Fargo & Company | 156,420 | $4.59M | 0.00% | +41,254+35.8% | Added |
| Invenomic Capital Management LP | 155,269 | $4.56M | 0.24% | +155,269 | New |
| Baird Financial Group, Inc. | 154,578 | $4.54M | 0.01% | +154,578 | New |
| Wealth High Governance Capital Ltda | 150,000 | $4.40M | 1.26% | +150,000 | New |
| Royce & Associates LP | 148,460 | $4.36M | 0.04% | +148,460 | New |
| Rhumbline Advisers | 147,254 | $4.32M | 0.00% | +119+0.1% | Added |
| Campbell & CO Investment Adviser LLC | 143,144 | $4.20M | 0.32% | +123,285+620.8% | Added |
| Ameriprise Financial Inc | 142,809 | $4.19M | 0.00% | +12,629+9.7% | Added |
| Legal & General Group Plc | 133,399 | $3.92M | 0.00% | +956+0.7% | Added |
| Raymond James Financial Inc | 129,720 | $3.81M | 0.00% | +6,305+5.1% | Added |
| State of Wisconsin Investment Board | 127,700 | $3.75M | 0.01% | −75,888−37.3% | Reduced |
| Cubist Systematic Strategies, LLC | 120,344 | $3.53M | 0.05% | +120,344 | New |
| Boothbay Fund Management, LLC | 119,918 | $3.52M | 0.09% | +47,981+66.7% | Added |
| Nuveen, LLC | 116,653 | $3.42M | 0.00% | −2,153−1.8% | Reduced |
| BNP Paribas Arbitrage, SA | 116,219 | $3.41M | 0.00% | +2,255+2.0% | Added |
| Walleye Trading LLC | 114,072 | $3.35M | 0.05% | +111,372+4,124.9% | Added |
| Swiss National Bank | 108,450 | $3.18M | 0.00% | +2,700+2.6% | Added |
| Amitell Capital Pte Ltd | 108,000 | $3.17M | 2.34% | +108,000 | New |
| Victory Capital Management Inc | 106,007 | $3.11M | 0.00% | +8,081+8.3% | Added |
| Deutsche Bank AG | 104,986 | $3.08M | 0.00% | +4,633+4.6% | Added |
| BW Gestao de Investimentos Ltda. | 100,000 | $2.94M | 0.22% | +100,000 | New |
| CoreCommodity Management, LLC | 86,832 | $2.55M | 0.47% | −117,076−57.4% | Reduced |
| Barclays PLC | 86,330 | $2.53M | 0.00% | −18,435−17.6% | Reduced |
| Thomist Capital Management, LP | 83,991 | $2.47M | 0.77% | −137,755−62.1% | Reduced |
| Verition Fund Management LLC | 83,318 | $2.45M | 0.01% | −201,115−70.7% | Reduced |
| SEI Investments Co | 82,373 | $2.42M | 0.00% | +61,447+293.6% | Added |
| New York State Teachers Retirement System | 81,728 | $2.40M | 0.00% | 00.0% | Unchanged |
| Intech Investment Management LLC | 79,273 | $2.33M | 0.02% | −19,890−20.1% | Reduced |
| Lombard Odier Asset Management (USA) Corp | 76,500 | $2.25M | 0.51% | +16,089+26.6% | Added |
| Headlands Technologies LLC | 71,691 | $2.10M | 0.17% | +56,695+378.1% | Added |
| LMR Partners LLP | 70,000 | $2.06M | 0.03% | −34,000−32.7% | Reduced |
| Voleon Capital Management LP | 68,030 | $2.00M | 0.05% | +68,030 | New |
| Alliancebernstein L.P. | 66,243 | $1.94M | 0.00% | −4,457−6.3% | Reduced |
| AQR Capital Management LLC | 66,073 | $1.94M | 0.00% | +11,406+20.9% | Added |
| Caxton Associates LLP | 62,357 | $1.83M | 0.05% | +62,357 | New |
| Aldebaran Capital, LLC | 59,565 | $1.75M | 1.61% | −1,620−2.6% | Reduced |
| LPL Financial LLC | 59,272 | $1.74M | 0.00% | +48,703+460.8% | Added |
| Prudential Financial Inc | 58,077 | $1.71M | 0.00% | −40,110−40.9% | Reduced |
| Brevan Howard Capital Management LP | 55,723 | $1.64M | 0.02% | −29,579−34.7% | Reduced |
| Algert Global LLC | 53,943 | $1.58M | 0.03% | +450+0.8% | Added |
| Engineers Gate Manager LP | 51,881 | $1.52M | 0.02% | +51,881 | New |
| California State Teachers Retirement System | 51,243 | $1.50M | 0.00% | +3,271+6.8% | Added |
| Y-Intercept (Hong Kong) Ltd | 50,114 | $1.47M | 0.04% | +50,114 | New |
| State of Wyoming | 49,828 | $1.46M | 0.17% | −27,641−35.7% | Reduced |
| Advisor Group Holdings, Inc. | 60,601 | $1.46M | 0.00% | +43,829+261.3% | Added |
| Price T Rowe Associates Inc | 49,508 | $1.45M | 0.00% | +2,999+6.4% | Added |
| Winton Group Ltd | 48,912 | $1.44M | 0.05% | −35,585−42.1% | Reduced |