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, Q1 2023
Institutional positions in Century Aluminum Co as of Mar 31, 2023. 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
- 168
- 0 vs. Q4 2022
- Shares held
- 51.8M
- +32.8K (+0.1%) vs. Q4 2022
- Total value
- $518.2M
- +$95.0M (+22.4%) vs. Q4 2022
- New holders
- 27
- 50 more added
- Sold out
- 27
- 63 more reduced
1 institution that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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, Q1 2023
Shares, value and share of portfolio for each institution holding Century Aluminum Co; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Symmetry Investments LP | 57,100 | $571.0K | 0.27% | +57,100 | New |
| New York State Common Retirement Fund | 57,238 | $572.4K | 0.00% | −47,744−45.5% | Reduced |
| Boulder Hill Capital Management LP | 57,838 | $578.4K | 0.47% | +57,838 | New |
| California State Teachers Retirement System | 63,452 | $634.5K | 0.00% | −913−1.4% | Reduced |
| JPMorgan Chase & Co | 66,110 | $661.0K | 0.00% | −152,747−69.8% | Reduced |
| State of Wisconsin Investment Board | 67,127 | $671.3K | 0.00% | +67,127 | New |
| Aldebaran Capital, LLC | 68,075 | $680.8K | 0.70% | −1,280−1.8% | Reduced |
| Hunter Associates Investment Management LLC | 71,500 | $715.0K | 0.15% | 00.0% | Unchanged |
| UBS Group AG | 71,820 | $718.2K | 0.00% | +52,878+279.2% | Added |
| Jane Street Group, LLC | 74,543 | $745.4K | 0.00% | −30,445−29.0% | Reduced |
| UBS Asset Management Americas Inc | 74,728 | $747.3K | 0.00% | +5,061+7.3% | Added |
| Lazard Asset Management LLC | 75,666 | $756.0K | 0.00% | −48,735−39.2% | Reduced |
| Gsa Capital Partners LLP | 78,381 | $784.0K | 0.08% | +78,381 | New |
| Trexquant Investment LP | 86,913 | $869.1K | 0.02% | −26,063−23.1% | Reduced |
| Public Sector Pension Investment Board | 89,969 | $899.7K | 0.01% | −4,238−4.5% | Reduced |
| Susquehanna International Group, LLP | 91,993 | $919.9K | 0.00% | −61,817−40.2% | Reduced |
| Venture Visionary Partners LLC | 95,721 | $957.2K | 0.06% | −12,004−11.1% | Reduced |
| Assenagon Asset Management S.A. | 98,644 | $986.4K | 0.00% | −98,626−50.0% | Reduced |
| New York State Teachers Retirement System | 102,344 | $1.02M | 0.00% | +2,339+2.3% | Added |
| Wells Fargo & Company | 103,102 | $1.03M | 0.00% | +8,397+8.9% | Added |
| Swiss National Bank | 108,450 | $1.08M | 0.00% | −12,900−10.6% | Reduced |
| SummerHaven Investment Management, LLC | 111,066 | $1.11M | 0.65% | +1,685+1.5% | Added |
| ClariVest Asset Management LLC | 115,662 | $1.16M | 0.05% | +115,662 | New |
| Russell Investments Group, Ltd. | 130,391 | $1.30M | 0.00% | +32,426+33.1% | Added |
| BNP Paribas Arbitrage, SA | 130,710 | $1.31M | 0.00% | −230,153−63.8% | Reduced |
| Legal & General Group Plc | 145,143 | $1.45M | 0.00% | −1,966−1.3% | Reduced |
| Bank of Montreal | 122,504 | $1.54M | 0.00% | −25,522−17.2% | Reduced |
| Rhumbline Advisers | 155,541 | $1.55M | 0.00% | +7,524+5.1% | Added |
| Cubist Systematic Strategies, LLC | 157,140 | $1.57M | 0.01% | +127,999+439.2% | Added |
| Susquehanna Fundamental Investments, LLC | 164,438 | $1.64M | 0.04% | 00.0% | Unchanged |
| Barclays PLC | 165,321 | $1.65M | 0.00% | +125,396+314.1% | Added |
| Wellington Management Group LLP | 167,130 | $1.67M | 0.00% | −1,391−0.8% | Reduced |
| PDT Partners, LLC | 170,867 | $1.71M | 0.23% | +760.0% | Added |
| Credit Suisse AG | 172,303 | $1.72M | 0.00% | +2,880+1.7% | Added |
| Occudo Quantitative Strategies LP | 196,130 | $1.96M | 0.18% | −82,186−29.5% | Reduced |
| Congress Asset Management Co | 210,242 | $2.10M | 0.02% | +20,960+11.1% | Added |
| Ameriprise Financial Inc | 212,523 | $2.13M | 0.00% | +18,989+9.8% | Added |
| Two Sigma Advisers, LP | 214,683 | $2.15M | 0.01% | −111,700−34.2% | Reduced |
| Two Sigma Investments, LP | 250,176 | $2.50M | 0.01% | −365,887−59.4% | Reduced |
| Deutsche Bank AG | 282,225 | $2.82M | 0.00% | +11,054+4.1% | Added |
| Nuveen Asset Management, LLC | 290,074 | $2.90M | 0.00% | −10,640−3.5% | Reduced |
| Balyasny Asset Management LLC | 292,339 | $2.92M | 0.01% | −89,798−23.5% | Reduced |
| Capital Fund Management S.A. | 302,659 | $3.03M | 0.06% | −111,241−26.9% | Reduced |
| Principal Financial Group Inc | 308,696 | $3.09M | 0.00% | −7,559−2.4% | Reduced |
| First Eagle Investment Management, LLC | 339,205 | $3.39M | 0.01% | −71,700−17.4% | Reduced |
| D. E. Shaw & Co., Inc. | 404,546 | $4.05M | 0.01% | −438,691−52.0% | Reduced |
| Norges Bank | 430,193 | $4.30M | 0.00% | 00.0% | Unchanged |
| Royce & Associates LP | 480,538 | $4.81M | 0.05% | +23,200+5.1% | Added |
| Bank of New York Mellon Corp | 488,345 | $4.88M | 0.00% | −20,054−3.9% | Reduced |
| Goldman Sachs Group Inc | 526,057 | $5.26M | 0.00% | +48,724+10.2% | Added |
| Northern Trust Corp | 532,757 | $5.33M | 0.00% | +17,301+3.4% | Added |
| Bridgeway Capital Management, LLC | 560,500 | $5.61M | 0.15% | −13,300−2.3% | Reduced |
| Bank of America Corp | 642,967 | $6.43M | 0.00% | +302,696+89.0% | Added |
| Voloridge Investment Management, LLC | 677,218 | $6.77M | 0.03% | +122,209+22.0% | Added |
| Renaissance Technologies LLC | 701,199 | $7.01M | 0.01% | −336,300−32.4% | Reduced |
| Charles Schwab Investment Management Inc | 737,010 | $7.37M | 0.00% | +65,829+9.8% | Added |
| Geode Capital Management, LLC | 1,016,737 | $10.2M | 0.00% | +47,486+4.9% | Added |
| Invesco Ltd. | 1,039,718 | $10.4M | 0.00% | −14,836−1.4% | Reduced |
| Mountaineer Partners Management, LLC | 1,103,201 | $11.0M | 8.02% | +139,883+14.5% | Added |
| Morgan Stanley | 1,119,793 | $11.2M | 0.00% | −123,928−10.0% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 1,173,601 | $11.7M | 0.03% | +476,720+68.4% | Added |
| Victory Capital Management Inc | 1,661,674 | $16.6M | 0.02% | +1,650,571+14,866.0% | Added |
| Citadel Advisors LLC | 2,197,455 | $22.0M | 0.02% | +456,054+26.2% | Added |
| Fisher Asset Management, LLC | 2,377,503 | $23.8M | 0.01% | −109,482−4.4% | Reduced |
| Dimensional Fund Advisors LP | 3,905,938 | $39.1M | 0.01% | +727,150+22.9% | Added |
| Vanguard Group Inc | 6,091,410 | $60.9M | 0.00% | −112,209−1.8% | Reduced |
| State Street Corp | 6,459,496 | $64.6M | 0.00% | +31,465+0.5% | Added |
| BlackRock Inc. | 9,344,428 | $93.4M | 0.00% | −378,100−3.9% | Reduced |
| William Blair Investment Management, LLC | 0 | $0 | 0.00% | −871,261−100.0% | Sold out |
| Soviero Asset Management, LP | 0 | $0 | 0.00% | −160,000−100.0% | Sold out |
| Key Group Holdings (Cayman), Ltd. | 0 | $0 | 0.00% | −74,414−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −72,098−100.0% | Sold out |
| Greenland Capital Management LP | 0 | $0 | 0.00% | −64,692−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −63,153−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −42,996−100.0% | Sold out |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −36,200−100.0% | Sold out |
| Envestnet Asset Management Inc | 0 | $0 | 0.00% | −19,387−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −17,490−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −14,433−100.0% | Sold out |
| Commonwealth Equity Services, LLC | 0 | $0 | 0.00% | −13,850−100.0% | Sold out |
| Meeder Asset Management Inc | 0 | $0 | 0.00% | −13,108−100.0% | Sold out |
| Alpine Global Management, LLC | 0 | $0 | 0.00% | −11,774−100.0% | Sold out |
| Acrisure Capital Management, LLC | 0 | $0 | 0.00% | −11,202−100.0% | Sold out |
| Wolverine Trading, LLC | 0 | $0 | 0.00% | −10,195−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −2,047−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −923−100.0% | Sold out |
| Anchor Investment Management, LLC | 0 | $0 | 0.00% | −646−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −536−100.0% | Sold out |
| Bogart Wealth, LLC | 0 | $0 | 0.00% | −432−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −57−100.0% | Sold out |
| Comerica Securities,inc. | 0 | $0 | 0.00% | −32−100.0% | Sold out |
| Sutton Wealth Advisors Inc. | 0 | $0 | 0.00% | −19−100.0% | Sold out |
| Pathstone Family Office, LLC | 0 | $0 | 0.00% | −10,519−100.0% | Sold out |
| Rockefeller Capital Management L.P. | 0 | $0 | 0.00% | −36−100.0% | Sold out |
| Carolina Wealth Advisors, LLC | 0 | $0 | 0.00% | −37−100.0% | Sold out |
| Comerica Bank | – | – | – | – | Not filed |