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, Q2 2025
Institutional positions in Century Aluminum Co as of Jun 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
- 222
- +7 vs. Q1 2025
- Shares held
- 95.5M
- +3.41M (+3.7%) vs. Q1 2025
- Total value
- $1.72B
- +$11.7M (+0.7%) vs. Q1 2025
- New holders
- 44
- 88 more added
- Sold out
- 37
- 72 more reduced
3 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Century Aluminum Co; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Glencore plc | 40,054,508 | $721.8M | 85.65% | +16,4770.0% | Added |
| BlackRock, Inc. | 10,159,276 | $183.1M | 0.00% | +266,591+2.7% | Added |
| Vanguard Group Inc | 5,769,880 | $104.0M | 0.00% | +55,480+1.0% | Added |
| State Street Corp | 3,665,546 | $66.1M | 0.00% | +426,306+13.2% | Added |
| Dimensional Fund Advisors LP | 3,071,984 | $55.4M | 0.01% | +234,133+8.3% | Added |
| Citadel Advisors LLC | 1,922,657 | $34.6M | 0.03% | −63,986−3.2% | Reduced |
| Boston Partners | 1,733,668 | $31.2M | 0.03% | +1,339,744+340.1% | Added |
| Wexford Capital LP | 1,477,817 | $26.6M | 7.43% | +308,264+26.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 1,429,402 | $25.8M | 0.05% | −33,607−2.3% | Reduced |
| Sourcerock Group LLC | 1,424,088 | $25.7M | 1.34% | +1,224,088+612.0% | Added |
| Geode Capital Management, LLC | 1,300,691 | $23.4M | 0.00% | +6,397+0.5% | Added |
| Woodline Partners LP | 1,289,491 | $23.2M | 0.12% | +248,679+23.9% | Added |
| Fisher Asset Management, LLC | 1,063,585 | $19.2M | 0.01% | −260,008−19.6% | Reduced |
| Bank of America Corp | 1,002,397 | $18.1M | 0.00% | +372,877+59.2% | Added |
| Wellington Management Group LLP | 981,602 | $17.7M | 0.00% | +287,850+41.5% | Added |
| Morgan Stanley | 847,969 | $15.3M | 0.00% | −287,070−25.3% | Reduced |
| Impala Asset Management LLC | 803,894 | $14.5M | 9.17% | −128,260−13.8% | Reduced |
| Mountaineer Partners Management, LLC | 705,150 | $12.7M | 8.40% | +65,777+10.3% | Added |
| Charles Schwab Investment Management Inc | 551,583 | $9.94M | 0.00% | +13,856+2.6% | Added |
| UBS Group AG | 543,549 | $9.79M | 0.00% | +89,377+19.7% | Added |
| Voloridge Investment Management, LLC | 541,555 | $9.76M | 0.04% | +408,064+305.7% | Added |
| Qube Research & Technologies Ltd | 541,111 | $9.75M | 0.01% | +329,298+155.5% | Added |
| Invesco Ltd. | 537,466 | $9.69M | 0.00% | −398,375−42.6% | Reduced |
| Marshall Wace, LLP | 521,608 | $9.40M | 0.01% | +521,608 | New |
| Millennium Management LLC | 512,517 | $9.24M | 0.01% | +478,716+1,416.3% | Added |
| Northern Trust Corp | 508,364 | $9.16M | 0.00% | −18,276−3.5% | Reduced |
| South Dakota Investment Council | 438,419 | $7.90M | 0.15% | +159,745+57.3% | Added |
| UBS Asset Management Americas Inc | 383,996 | $6.92M | 0.00% | +259,995+209.7% | Added |
| Bank of New York Mellon Corp | 343,584 | $6.19M | 0.00% | +542+0.2% | Added |
| First Eagle Investment Management, LLC | 338,056 | $6.09M | 0.01% | −27,000−7.4% | Reduced |
| Icon Advisers Inc | 325,200 | $5.86M | 1.34% | +325,200 | New |
| Adage Capital Partners GP, L.L.C. | 290,000 | $5.23M | 0.01% | +35,000+13.7% | Added |
| Verition Fund Management LLC | 284,433 | $5.13M | 0.03% | +250,080+728.0% | Added |
| Royal Bank of Canada | 283,976 | $5.12M | 0.00% | +272,355+2,343.6% | Added |
| D. E. Shaw & Co., Inc. | 268,668 | $4.84M | 0.00% | +240,289+846.7% | Added |
| CSM Advisors, LLC | 261,953 | $4.72M | 0.14% | +261,953 | New |
| Principal Financial Group Inc | 259,211 | $4.67M | 0.00% | −67,584−20.7% | Reduced |
| Squarepoint Ops LLC | 252,331 | $4.55M | 0.01% | +147,087+139.8% | Added |
| Russell Investments Group, Ltd. | 250,325 | $4.51M | 0.01% | +120,950+93.5% | Added |
| Balyasny Asset Management LLC | 247,106 | $4.45M | 0.01% | +68,168+38.1% | Added |
| Bastion Asset Management Inc. | 239,486 | $4.25M | 1.99% | +78,049+48.3% | Added |
| Monaco Asset Management SAM | 230,000 | $4.14M | 1.57% | +92,500+67.3% | Added |
| Goldman Sachs Group Inc | 224,714 | $4.05M | 0.00% | −154,634−40.8% | Reduced |
| Thomist Capital Management, LP | 221,746 | $4.00M | 2.41% | +184,100+489.0% | Added |
| Congress Asset Management Co | 216,924 | $3.91M | 0.03% | −190.0% | Reduced |
| CoreCommodity Management, LLC | 203,908 | $3.67M | 0.60% | +65,286+47.1% | Added |
| State of Wisconsin Investment Board | 203,588 | $3.67M | 0.01% | +51,817+34.1% | Added |
| Assenagon Asset Management S.A. | 200,899 | $3.62M | 0.01% | −96,882−32.5% | Reduced |
| Cohen & Steers, Inc. | 195,963 | $3.53M | 0.01% | −6,380−3.2% | Reduced |
| Hartree Partners, LP | 195,227 | $3.52M | 1.00% | +195,227 | New |
| Steamboat Capital Partners, LLC | 191,381 | $3.45M | 0.98% | −3,597−1.8% | Reduced |
| Jacobs Levy Equity Management, Inc | 190,674 | $3.44M | 0.01% | −8,586−4.3% | Reduced |
| Soviero Asset Management, LP | 190,000 | $3.42M | 2.51% | +190,000 | New |
| Public Sector Pension Investment Board | 178,097 | $3.21M | 0.01% | +13,264+8.0% | Added |
| American Century Companies Inc | 155,934 | $2.81M | 0.00% | +18,823+13.7% | Added |
| Renaissance Technologies LLC | 155,599 | $2.80M | 0.00% | +155,599 | New |
| Jane Street Group, LLC | 154,606 | $2.79M | 0.00% | −40,593−20.8% | Reduced |
| Antipodes Partners Ltd | 153,131 | $2.76M | 0.09% | +153,131 | New |
| Rhumbline Advisers | 147,135 | $2.65M | 0.00% | +4,689+3.3% | Added |
| JPMorgan Chase & Co | 147,046 | $2.65M | 0.00% | +9,721+7.1% | Added |
| SummitTX Capital, L.P. | 143,072 | $2.58M | 0.11% | −54,897−27.7% | Reduced |
| Legal & General Group Plc | 132,443 | $2.39M | 0.00% | +4,252+3.3% | Added |
| Ameriprise Financial Inc | 130,180 | $2.35M | 0.00% | −10,984−7.8% | Reduced |
| Raymond James Financial Inc | 123,415 | $2.22M | 0.00% | +20,809+20.3% | Added |
| Nuveen, LLC | 118,806 | $2.14M | 0.00% | −674,607−85.0% | Reduced |
| Wells Fargo & Company | 115,166 | $2.08M | 0.00% | +4,765+4.3% | Added |
| BNP Paribas Arbitrage, SA | 113,964 | $2.05M | 0.00% | +16,959+17.5% | Added |
| Swiss National Bank | 105,750 | $1.91M | 0.00% | −2,200−2.0% | Reduced |
| Barclays PLC | 104,765 | $1.89M | 0.00% | +10,312+10.9% | Added |
| Encompass Capital Advisors LLC | 104,535 | $1.88M | 0.08% | −645,465−86.1% | Reduced |
| LMR Partners LLP | 104,000 | $1.87M | 0.03% | −28,000−21.2% | Reduced |
| Deutsche Bank AG | 100,353 | $1.81M | 0.00% | −6,594−6.2% | Reduced |
| Intech Investment Management LLC | 99,163 | $1.79M | 0.02% | −35,850−26.6% | Reduced |
| Prudential Financial Inc | 98,187 | $1.77M | 0.00% | −48,170−32.9% | Reduced |
| Victory Capital Management Inc | 97,926 | $1.76M | 0.00% | +36,189+58.6% | Added |
| Brevan Howard Capital Management LP | 85,302 | $1.54M | 0.02% | +66,701+358.6% | Added |
| Winton Group Ltd | 84,497 | $1.52M | 0.08% | −1,004−1.2% | Reduced |
| Two Sigma Investments, LP | 81,785 | $1.47M | 0.00% | −110,717−57.5% | Reduced |
| New York State Teachers Retirement System | 81,728 | $1.47M | 0.00% | −12,407−13.2% | Reduced |
| State of Wyoming | 77,469 | $1.40M | 0.17% | +77,469 | New |
| Lighthouse Investment Partners, LLC | 73,612 | $1.33M | 0.06% | +3,637+5.2% | Added |
| Boothbay Fund Management, LLC | 71,937 | $1.30M | 0.04% | +61,177+568.6% | Added |
| Alliancebernstein L.P. | 70,700 | $1.27M | 0.00% | +10,539+17.5% | Added |
| Jump Financial, LLC | 64,895 | $1.17M | 0.01% | +64,895 | New |
| Susquehanna International Group, LLP | 63,691 | $1.15M | 0.00% | −11,154−14.9% | Reduced |
| Aldebaran Capital, LLC | 61,185 | $1.10M | 1.09% | −110−0.2% | Reduced |
| Lombard Odier Asset Management (USA) Corp | 60,411 | $1.09M | 0.27% | −2,725−4.3% | Reduced |
| AQR Capital Management LLC | 54,667 | $985.1K | 0.00% | +15,666+40.2% | Added |
| Algert Global LLC | 53,493 | $963.9K | 0.02% | −136,751−71.9% | Reduced |
| HSBC Holdings PLC | 52,399 | $946.9K | 0.00% | +27,041+106.6% | Added |
| Dynamic Technology Lab Private Ltd | 48,600 | $876.0K | 0.12% | +48,600 | New |
| Great West Life Assurance Co | 48,209 | $869.0K | 0.00% | +3,649+8.2% | Added |
| California State Teachers Retirement System | 47,972 | $864.5K | 0.00% | −3,825−7.4% | Reduced |
| Price T Rowe Associates Inc | 46,509 | $839.0K | 0.00% | +1,949+4.4% | Added |
| Citigroup Inc | 46,033 | $829.5K | 0.00% | −38,184−45.3% | Reduced |
| Jennison Associates LLC | 45,172 | $814.0K | 0.00% | −1,887−4.0% | Reduced |
| Franklin Resources Inc | 44,924 | $809.5K | 0.00% | −793−1.7% | Reduced |
| Centiva Capital, LP | 44,654 | $804.7K | 0.05% | +8,050+22.0% | Added |
| Quantbot Technologies LP | 41,380 | $745.7K | 0.02% | −79,498−65.8% | Reduced |
| Bank of Montreal | 40,159 | $723.7K | 0.00% | −131,930−76.7% | Reduced |