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 |
|---|---|---|---|---|---|
| Pinpoint Asset Management (Singapore) Pte. Ltd. | 7,032 | $275.5K | 0.06% | +7,032 | New |
| Cetera Investment Advisers | 7,143 | $279.9K | 0.00% | +7,143 | New |
| Madrona Financial Services, LLC | 7,250 | $284.1K | 0.06% | 00.0% | Unchanged |
| Dynamic Technology Lab Private Ltd | 7,591 | $297.0K | 0.07% | +7,591 | New |
| Summit Global Investments | 7,625 | $299.0K | 0.02% | +7,625 | New |
| Maryland State Retirement & Pension System | 7,757 | $303.9K | 0.01% | +144+1.9% | Added |
| Everence Capital Management Inc | 7,750 | $304.0K | 0.02% | 00.0% | Unchanged |
| Truist Financial Corp | 7,944 | $311.2K | 0.00% | +7,944 | New |
| Covestor Ltd | 7,980 | $313.0K | 0.16% | +81+1.0% | Added |
| Stifel Financial Corp | 8,544 | $334.8K | 0.00% | +8,544 | New |
| FMR LLC | 8,706 | $341.1K | 0.00% | +2,785+47.0% | Added |
| Two Sigma Securities, LLC | 8,789 | $344.4K | 0.05% | +8,789 | New |
| Rossby Financial, LCC | 9,050 | $354.6K | 0.11% | +9,050 | New |
| XTX Topco Ltd | 9,097 | $356.4K | 0.01% | −10,957−54.6% | Reduced |
| Mercer Global Advisors Inc | 9,140 | $358.1K | 0.00% | −156−1.7% | Reduced |
| Voya Investment Management LLC | 9,452 | $370.3K | 0.00% | 00.0% | Unchanged |
| Pictet Asset Management Holding SA | 9,514 | $372.8K | 0.00% | +9,514 | New |
| CenterBook Partners LP | 9,582 | $375.4K | 0.02% | −14,421−60.1% | Reduced |
| Jain Global LLC | 9,591 | $375.8K | 0.00% | +9,591 | New |
| Oxford Asset Management LLP | 9,615 | $376.7K | 0.13% | −5,493−36.4% | Reduced |
| Schroder Investment Management Group | 9,606 | $381.3K | 0.00% | +9,606 | New |
| Commonwealth Equity Services, LLC | 9,860 | $386.3K | 0.00% | −172−1.7% | Reduced |
| ProShare Advisors LLC | 10,269 | $402.3K | 0.00% | +308+3.1% | Added |
| Lido Advisors, LLC | 12,911 | $405.8K | 0.00% | +196+1.5% | Added |
| Quantinno Capital Management LP | 10,395 | $407.3K | 0.00% | +227+2.2% | Added |
| JustInvest LLC | 10,561 | $413.8K | 0.00% | −108−1.0% | Reduced |
| Pathstone Holdings, LLC | 11,198 | $438.7K | 0.00% | +46+0.4% | Added |
| Numerai GP LLC | 11,333 | $444.0K | 0.05% | −22,664−66.7% | Reduced |
| Park Avenue Securities LLC | 11,583 | $454.0K | 0.00% | +1,347+13.2% | Added |
| HSBC Holdings PLC | 11,732 | $459.7K | 0.00% | −13,158−52.9% | Reduced |
| Dark Forest Capital Management LP | 11,992 | $469.8K | 0.02% | +11,992 | New |
| KLP Kapitalforvaltning AS | 12,000 | $470.2K | 0.00% | +1,100+10.1% | Added |
| Oregon Public Employees Retirement Fund | 12,202 | $478.1K | 0.01% | +200+1.7% | Added |
| Quest Partners LLC | 12,622 | $494.5K | 0.03% | +2,638+26.4% | Added |
| Three Seasons Wealth, LLC | 12,639 | $495.2K | 0.05% | 00.0% | Unchanged |
| Neuberger Berman Group LLC | 12,806 | $501.7K | 0.00% | −806−5.9% | Reduced |
| Chesapeake Asset Management LLC | 13,015 | $509.9K | 0.42% | +13,015 | New |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 13,172 | $516.1K | 0.00% | −377−2.8% | Reduced |
| Virginia Retirement Systems Et Al | 13,200 | $517.2K | 0.00% | −3,500−21.0% | Reduced |
| Teachers Retirement System of the State of Kentucky | 13,265 | $519.0K | 0.00% | −1,562−10.5% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 14,205 | $557.0K | 0.00% | +14,205 | New |
| EntryPoint Capital, LLC | 14,410 | $564.6K | 0.22% | +7,371+104.7% | Added |
| Police & Firemen's Retirement System of New Jersey | 14,466 | $566.8K | 0.00% | 00.0% | Unchanged |
| Comerica Bank | 14,552 | $570.1K | 0.00% | −1,664−10.3% | Reduced |
| Sheets Smith Wealth Management | 14,657 | $574.3K | 0.06% | +5,308+56.8% | Added |
| Callan Family Office, LLC | 14,719 | $576.7K | 0.01% | +13+0.1% | Added |
| Amalgamated Bank | 15,447 | $605.0K | 0.00% | +71+0.5% | Added |
| Arizona State Retirement System | 15,663 | $613.7K | 0.00% | −899−5.4% | Reduced |
| PharVision Advisers, LLC | 16,022 | $627.7K | 0.32% | +6,143+62.2% | Added |
| Advisor Group Holdings, Inc. | 16,275 | $637.6K | 0.00% | −44,326−73.1% | Reduced |
| Aristeia Capital LLC | 16,522 | $647.3K | 0.02% | +16,522 | New |
| Yousif Capital Management, LLC | 14,283 | $683.7K | 0.01% | −2,170−13.2% | Reduced |
| Graham Capital Management, L.P. | 17,933 | $702.6K | 0.02% | +17,933 | New |
| State Board of Administration of Florida Retirement System | 18,408 | $721.2K | 0.00% | −4,811−20.7% | Reduced |
| Perennial Advisors, LLC | 19,368 | $758.8K | 0.13% | 00.0% | Unchanged |
| Hodges Capital Management Inc. | 20,000 | $783.6K | 0.07% | 00.0% | Unchanged |
| Creative Planning | 20,073 | $786.5K | 0.00% | +8,910+79.8% | Added |
| SG Americas Securities, LLC | 20,732 | $812.0K | 0.00% | +95+0.5% | Added |
| Cambria Investment Management, L.P. | 20,902 | $818.9K | 0.05% | −8,940−30.0% | Reduced |
| State of Tennessee, Treasury Department | 18,772 | $850.9K | 0.00% | +6,152+48.7% | Added |
| Quadrature Capital Ltd | 22,081 | $865.1K | 0.01% | +22,081 | New |
| Janus Henderson Group PLC | 22,906 | $897.7K | 0.00% | 00.0% | Unchanged |
| Concurrent Investment Advisors, LLC | 22,935 | $898.6K | 0.01% | +22,935 | New |
| MML Investors Services, LLC | 23,167 | $907.7K | 0.00% | +23,167 | New |
| Prelude Capital Management, LLC | 23,178 | $908.1K | 0.07% | +23,178 | New |
| Teacher Retirement System of Texas | 23,233 | $910.3K | 0.00% | −10,016−30.1% | Reduced |
| Ruffer LLP | 23,851 | $935.9K | 0.04% | +23,851 | New |
| Natixis Advisors, L.P. | 23,915 | $937.0K | 0.00% | +4,056+20.4% | Added |
| Louisiana State Employees Retirement System | 24,400 | $956.0K | 0.02% | −100−0.4% | Reduced |
| Lombard Odier Asset Management (USA) Corp | 24,659 | $966.1K | 0.39% | −51,841−67.8% | Reduced |
| Scientech Research LLC | 24,680 | $967.0K | 0.61% | +7,020+39.8% | Added |
| Himension Fund | 25,250 | $989.3K | 0.06% | +25,250 | New |
| Manufacturers Life Insurance Company, The | 25,690 | $1.01M | 0.00% | +516+2.0% | Added |
| Oceanic Investment Management LTD | 25,988 | $1.02M | 1.07% | +25,988 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 26,270 | $1.03M | 0.00% | +8,592+48.6% | Added |
| Citigroup Inc | 26,383 | $1.03M | 0.00% | +9,534+56.6% | Added |
| Entropy Technologies, LP | 26,953 | $1.06M | 0.06% | +830+3.2% | Added |
| Natixis | 28,076 | $1.10M | 0.00% | +28,076 | New |
| Illinois Municipal Retirement Fund | 28,526 | $1.12M | 0.01% | +1,150+4.2% | Added |
| Occudo Quantitative Strategies LP | 28,548 | $1.12M | 0.07% | −8,191−22.3% | Reduced |
| Virtu Financial LLC | 28,614 | $1.12M | 0.04% | +28,614 | New |
| O'Neil Global Advisors, Inc. | 28,741 | $1.13M | 0.39% | +28,741 | New |
| MetLife Investment Management | 29,515 | $1.16M | 0.01% | −1,783−5.7% | Reduced |
| Standard Life Aberdeen plc | 29,822 | $1.17M | 0.00% | +2,525+9.3% | Added |
| Polymer Capital Management (US) LLC | 30,000 | $1.18M | 0.15% | +20,703+222.7% | Added |
| State of Alaska, Department of Revenue | 30,604 | $1.20M | 0.01% | +441+1.5% | Added |
| Sigma Planning Corp | 31,870 | $1.25M | 0.03% | +31,870 | New |
| Bank of Montreal | 34,469 | $1.35M | 0.00% | +4,647+15.6% | Added |
| Capital Fund Management S.A. | 34,505 | $1.35M | 0.01% | +34,505 | New |
| Lighthouse Investment Partners, LLC | 35,000 | $1.37M | 0.05% | +10,521+43.0% | Added |
| Thrivent Financial for Lutherans | 36,560 | $1.43M | 0.00% | −1,822−4.7% | Reduced |
| Royal Bank of Canada | 37,189 | $1.46M | 0.00% | −233,278−86.3% | Reduced |
| Squarepoint Ops LLC | 37,219 | $1.46M | 0.00% | −7,073−16.0% | Reduced |
| IMC-Chicago, LLC | 37,790 | $1.48M | 0.03% | +37,790 | New |
| Legato Capital Management LLC | 40,973 | $1.61M | 0.14% | +40,973 | New |
| Jane Street Group, LLC | 41,518 | $1.63M | 0.00% | −124,728−75.0% | Reduced |
| Winton Group Ltd | 42,614 | $1.67M | 0.06% | −6,298−12.9% | Reduced |
| SummerHaven Investment Management, LLC | 43,479 | $1.70M | 0.97% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 46,609 | $1.83M | 0.16% | +26,552+132.4% | Added |
| Franklin Resources Inc | 47,380 | $1.86M | 0.00% | +832+1.8% | Added |