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 2026
Institutional positions in Century Aluminum Co as of Jun 30, 2026. 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
- 416
- +33 vs. Q1 2026
- Shares held
- 104.1M
- +3.15M (+3.1%) vs. Q1 2026
- Total value
- $4.79B
- −$1.13B (−19.1%) vs. Q1 2026
- New holders
- 92
- 173 more added
- Sold out
- 59
- 111 more reduced
4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 2026
Shares, value and share of portfolio for each institution holding Century Aluminum Co; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Alphadyne Asset Management LP | 15,187 | $698.8K | 0.03% | −4,813−24.1% | Reduced |
| KLP Kapitalforvaltning AS | 15,100 | $694.8K | 0.00% | +2,700+21.8% | Added |
| Concurrent Investment Advisors, LLC | 15,030 | $691.5K | 0.01% | −2,899−16.2% | Reduced |
| Yousif Capital Management, LLC | 14,791 | $680.5K | 0.01% | +583+4.1% | Added |
| Caitong International Asset Management Co., Ltd | 14,673 | $675.1K | 0.09% | +6,668+83.3% | Added |
| Sheets Smith Wealth Management | 14,594 | $671.5K | 0.07% | 00.0% | Unchanged |
| Callan Family Office, LLC | 14,340 | $659.8K | 0.01% | +36+0.3% | Added |
| Fifth Third Bancorp | 14,275 | $656.8K | 0.00% | +27+0.2% | Added |
| Quantinno Capital Management LP | 13,924 | $640.6K | 0.00% | +928+7.1% | Added |
| Winton Group Ltd | 13,900 | $639.5K | 0.02% | −5,700−29.1% | Reduced |
| Allstate Corp | 13,683 | $629.6K | 0.01% | +113+0.8% | Added |
| JustInvest LLC | 13,639 | $627.5K | 0.01% | +366+2.8% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 13,378 | $615.5K | 0.00% | +221+1.7% | Added |
| Dockside LLC | 13,298 | $611.8K | 0.14% | +13,298 | New |
| South Dakota Investment Council | 12,840 | $591.0K | 0.01% | −17,647−57.9% | Reduced |
| Oregon Public Employees Retirement Fund | 12,763 | $587.2K | 0.01% | +600+4.9% | Added |
| Integrated Wealth Concepts LLC | 12,480 | $574.2K | 0.00% | −3,482−21.8% | Reduced |
| DRW Securities, LLC | 12,470 | $573.7K | 0.03% | −22,414−64.3% | Reduced |
| Lido Advisors, LLC | 12,138 | $558.5K | 0.00% | −953−7.3% | Reduced |
| Landscape Capital Management, L.L.C. | 11,885 | $546.8K | 0.04% | +4,178+54.2% | Added |
| Arista Wealth Management, LLC | 11,770 | $541.5K | 0.06% | +11,770 | New |
| CoreCommodity Management, LLC | 11,723 | $539.4K | 0.11% | −15,308−56.6% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 11,183 | $515.0K | 0.00% | +7,274+186.1% | Added |
| Pathstone Holdings, LLC | 11,151 | $513.1K | 0.00% | −689−5.8% | Reduced |
| Blueshift Asset Management, LLC | 11,138 | $512.5K | 0.12% | +11,138 | New |
| Los Angeles Capital Management LLC | 11,063 | $509.0K | 0.00% | −3,304−23.0% | Reduced |
| Perennial Advisors, LLC | 10,868 | $500.0K | 0.08% | −2,000−15.5% | Reduced |
| Toroso Investments, LLC | 10,868 | $500.0K | 0.00% | +1,040+10.6% | Added |
| Dynamic Technology Lab Private Ltd | 10,760 | $495.0K | 0.11% | +10,760 | New |
| Belpointe Asset Management LLC | 10,194 | $469.0K | 0.02% | +5,114+100.7% | Added |
| Mercer Global Advisors Inc | 10,111 | $465.2K | 0.00% | −577−5.4% | Reduced |
| Pictet Asset Management Holding SA | 10,077 | $463.6K | 0.00% | +490+5.1% | Added |
| Parallax Volatility Advisers, L.P. | 10,024 | $461.2K | 0.02% | +10,024 | New |
| Hartree Partners, LP | 10,000 | $460.1K | 0.10% | −40,000−80.0% | Reduced |
| ProShare Advisors LLC | 9,849 | $453.2K | 0.00% | +1,037+11.8% | Added |
| Public Employees Retirement Association of Colorado | 9,797 | $451.0K | 0.00% | −668−6.4% | Reduced |
| Optimist Retirement Group LLC | 9,447 | $434.7K | 0.17% | +410+4.5% | Added |
| Swiss Life Asset Management Ltd | 8,780 | $404.0K | 0.00% | +1,619+22.6% | Added |
| Wealth Enhancement Advisory Services, LLC | 8,786 | $392.5K | 0.00% | +8,786 | New |
| Acadian Asset Management LLC | 8,546 | $392.0K | 0.00% | +599+7.5% | Added |
| Rossby Financial, LCC | 8,500 | $391.1K | 0.07% | −200−2.3% | Reduced |
| Treasurer of the State of North Carolina | 8,501 | $391.0K | 0.00% | +8,501 | New |
| Ares Systematic Credit Ltd | 8,254 | $379.8K | 0.23% | +8,254 | New |
| Commonwealth Equity Services, LLC | 8,233 | $378.8K | 0.00% | −2,840−25.6% | Reduced |
| Maryland State Retirement & Pension System | 8,221 | $378.2K | 0.01% | +464+6.0% | Added |
| Campbell & CO Investment Adviser LLC | 8,220 | $378.2K | 0.02% | +8,220 | New |
| Amundi | 8,114 | $373.3K | 0.00% | +8,114 | New |
| Cerity Partners LLC | 7,933 | $365.0K | 0.00% | −2,010−20.2% | Reduced |
| Massar Capital Management, LP | 7,827 | $360.1K | 0.12% | +7,827 | New |
| Teacher Retirement System of Texas | 7,766 | $357.3K | 0.00% | +7,766 | New |
| STRS Ohio | 7,600 | $349.7K | 0.00% | +6,800+850.0% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 7,561 | $347.9K | 0.00% | +7,561 | New |
| AlphaGrep UK Ltd | 7,475 | $343.9K | 0.10% | +7,475 | New |
| Park Avenue Securities LLC | 7,140 | $329.0K | 0.00% | −3,859−35.1% | Reduced |
| Xponance, Inc. | 6,958 | $320.1K | 0.00% | +1,696+32.2% | Added |
| Keebeck Wealth Management, LLC | 6,521 | $300.0K | 0.03% | +6,521 | New |
| Mutual of America Capital Management LLC | 6,461 | $297.3K | 0.00% | +372+6.1% | Added |
| 111 Capital | 6,442 | $296.4K | 0.05% | +6,442 | New |
| Ameritas Investment Partners, Inc. | 6,370 | $293.1K | 0.01% | +1,714+36.8% | Added |
| Schonfeld Strategic Advisors LLC | 6,231 | $286.7K | 0.00% | −22,661−78.4% | Reduced |
| Ashton Thomas Private Wealth, LLC | 6,225 | $286.4K | 0.01% | +6,225 | New |
| CWA Asset Management Group, LLC | 6,221 | $286.2K | 0.01% | +6,221 | New |
| Systematic Alpha Investments, LLC | 6,200 | $285.3K | 0.01% | 00.0% | Unchanged |
| Savant Capital, LLC | 6,199 | $285.3K | 0.00% | −603−8.9% | Reduced |
| Garden State Investment Advisory Services LLC | 6,191 | $284.8K | 0.06% | +6,191 | New |
| Highland Capital Management, LLC | 6,134 | $282.2K | 0.01% | −248−3.9% | Reduced |
| Stifel Financial Corp | 5,983 | $275.3K | 0.00% | −1,664−21.8% | Reduced |
| Everhart Financial Group, Inc. | 5,945 | $273.5K | 0.02% | −25−0.4% | Reduced |
| The PNC Financial Services Group, Inc. | 5,790 | $266.4K | 0.00% | +700+13.8% | Added |
| Principal Securities, Inc. | 5,759 | $265.0K | 0.00% | +5,759 | New |
| Whalen Wealth Management Inc. | 5,754 | $264.7K | 0.12% | +5,754 | New |
| Hillsdale Investment Management Inc. | 5,650 | $260.0K | 0.01% | +5,650 | New |
| AE Wealth Management LLC | 5,619 | $258.5K | 0.00% | −193−3.3% | Reduced |
| Oxford Asset Management LLP | 5,529 | $254.4K | 0.13% | +450+8.9% | Added |
| Compass Financial Management LLC | 5,313 | $250.3K | 0.03% | +5,313 | New |
| Tower Research Capital LLC (TRC) | 5,330 | $245.2K | 0.01% | −1,391−20.7% | Reduced |
| National Bank of Canada | 5,330 | $245.2K | 0.00% | +5,330 | New |
| Kovack Advisors, Inc. | 5,125 | $235.8K | 0.01% | +5,125 | New |
| Sequoia Financial Advisors, LLC | 5,059 | $232.8K | 0.00% | −691−12.0% | Reduced |
| EP Wealth Advisors, LLC | 5,010 | $230.5K | 0.00% | −1,138−18.5% | Reduced |
| Corsair Capital Management, L.P. | 5,000 | $230.1K | 0.03% | +5,000 | New |
| Kraft, Davis & Associates, LLC | 5,058 | $221.0K | 0.05% | 00.0% | Unchanged |
| GAMMA Investing LLC | 4,771 | $219.5K | 0.01% | +398+9.1% | Added |
| Mangrove Partners | 4,712 | $216.8K | 0.01% | +4,712 | New |
| GWM Advisors LLC | 4,634 | $213.2K | 0.00% | +121+2.7% | Added |
| Compagnie Lombard Odier SCmA | 4,540 | $208.9K | 0.00% | 00.0% | Unchanged |
| Guggenheim Capital LLC | 4,537 | $208.7K | 0.00% | −297−6.1% | Reduced |
| CIBC Asset Management Inc | 4,497 | $206.9K | 0.00% | +457+11.3% | Added |
| Crossmark Global Holdings, Inc. | 4,388 | $201.9K | 0.00% | −83−1.9% | Reduced |
| Ensign Peak Advisors, Inc | 4,050 | $186.3K | 0.00% | +4,050 | New |
| Leonteq Securities AG | 3,972 | $182.8K | 0.01% | +2,828+247.2% | Added |
| Banque Cantonale Vaudoise | 3,612 | $166.0K | 0.01% | +3,612 | New |
| State of Wyoming | 3,309 | $152.2K | 0.02% | −40,223−92.4% | Reduced |
| Transamerica Financial Advisors, Inc. | 2,718 | $125.1K | 0.01% | +287+11.8% | Added |
| Nisa Investment Advisors, LLC | 2,433 | $111.9K | 0.00% | +1,073+78.9% | Added |
| Global Retirement Partners, LLC | 2,238 | $103.0K | 0.00% | +2,238 | New |
| KBC Group NV | 2,199 | $101.0K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 2,171 | $99.9K | 0.00% | +487+28.9% | Added |
| Vestcor Inc | 2,062 | $95.0K | 0.00% | 00.0% | Unchanged |
| Northwest & Ethical Investments L.P. | 1,966 | $91.5K | 0.00% | −11,209−85.1% | Reduced |