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 2026
Institutional positions in Century Aluminum Co as of Mar 31, 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
- 387
- +66 vs. Q4 2025
- Shares held
- 101.0M
- +8.01M (+8.6%) vs. Q4 2025
- Total value
- $5.92B
- +$2.28B (+62.6%) vs. Q4 2025
- New holders
- 107
- 130 more added
- Sold out
- 41
- 122 more reduced
5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Century Aluminum Co; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Dunhill Financial, LLC | 1 | $59 | 0.00% | 00.0% | Unchanged |
| Curio Wealth, LLC | 1 | $59 | 0.00% | +1 | New |
| GHP Investment Advisors, Inc. | 2 | $118 | 0.00% | +2 | New |
| Tradewinds Capital Management, LLC | 2 | $118 | 0.00% | +2 | New |
| Abound Wealth Management | 2 | $118 | 0.00% | +2 | New |
| Rialto Wealth Management, LLC | 2 | $118 | 0.00% | +2 | New |
| HFM Investment Advisors, LLC | 4 | $235 | 0.00% | +4 | New |
| Aster Capital Management (DIFC) Ltd | 16 | $297 | 0.00% | +16 | New |
| TD Capital Management LLC | 6 | $352 | 0.00% | 00.0% | Unchanged |
| Ankerstar Wealth, LLC | 6 | $352 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 7 | $411 | 0.00% | 00.0% | Unchanged |
| Vermillion Wealth Management, Inc. | 7 | $411 | 0.00% | +7 | New |
| SJS Investment Consulting Inc. | 7 | $411 | 0.00% | +7 | New |
| Godfrey Financial Associates, Inc. | 8 | $470 | 0.00% | 00.0% | Unchanged |
| Gilpin Wealth Management, LLC | 9 | $529 | 0.00% | +5+125.0% | Added |
| Basecamp Wealth Advisors LLC | 10 | $587 | 0.00% | −93−90.3% | Reduced |
| Cedar Mountain Advisors, LLC | 10 | $587 | 0.00% | 00.0% | Unchanged |
| Quarry LP | 11 | $646 | 0.00% | −1,140−99.0% | Reduced |
| Decker Retirement Planning Inc. | 16 | $939 | 0.00% | +16 | New |
| CVA Family Office, LLC | 18 | $1.06K | 0.00% | +18 | New |
| C M Bidwell & Associates Ltd | 21 | $1.23K | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 22 | $1.29K | 0.00% | +1+4.8% | Added |
| JFS Wealth Advisors, LLC | 23 | $1.35K | 0.00% | +23 | New |
| Stone House Investment Management, LLC | 23 | $1.35K | 0.00% | +23 | New |
| JPL Wealth Management, LLC | 32 | $1.88K | 0.00% | +32 | New |
| Farmers & Merchants Investments Inc | 33 | $1.94K | 0.00% | 00.0% | Unchanged |
| Cullen/Frost Bankers, Inc. | 48 | $2.82K | 0.00% | 00.0% | Unchanged |
| Valued Wealth Advisors LLC | 48 | $2.82K | 0.00% | +48 | New |
| Golden State Wealth Management, LLC | 50 | $2.94K | 0.00% | +50 | New |
| Colonial Trust Co | 66 | $3.53K | 0.00% | −27−29.0% | Reduced |
| CX Institutional | 62 | $4.00K | 0.00% | 00.0% | Unchanged |
| Public Employees Retirement System of Ohio | 75 | $4.40K | 0.00% | +75 | New |
| Bare Financial Services, Inc | 77 | $4.52K | 0.00% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 77 | $4.52K | 0.00% | +12+18.5% | Added |
| Financially Speaking Inc | 93 | $5.46K | 0.03% | +93 | New |
| Steward Partners Investment Advisory, LLC | 100 | $5.87K | 0.00% | +50+100.0% | Added |
| Capital Advisors, Ltd. LLC | 107 | $6.00K | 0.00% | 00.0% | Unchanged |
| Keating Financial Advisory Services, Inc. | 104 | $6.10K | 0.00% | +104 | New |
| Parkside Financial Bank & Trust | 105 | $6.16K | 0.00% | +1+1.0% | Added |
| Root Financial Partners, LLC | 114 | $6.69K | 0.00% | +114 | New |
| Kilter Group LLC | 130 | $7.63K | 0.00% | +2+1.6% | Added |
| Rothschild Investment LLC | 143 | $8.39K | 0.00% | +16+12.6% | Added |
| Annis Gardner Whiting Capital Advisors, LLC | 147 | $8.63K | 0.00% | +113+332.4% | Added |
| UMA Financial Services, Inc. | 151 | $8.86K | 0.00% | 00.0% | Unchanged |
| Harbor Capital Advisors, Inc. | 159 | $9.00K | 0.00% | +12+8.2% | Added |
| Sound Income Strategies, LLC | 146 | $9.27K | 0.00% | 00.0% | Unchanged |
| Twin Peaks Wealth Advisors, LLC | 164 | $9.63K | 0.00% | +164 | New |
| SBI Securities Co., Ltd. | 169 | $9.92K | 0.00% | +142+525.9% | Added |
| Parallel Advisors, LLC | 174 | $10.2K | 0.00% | 00.0% | Unchanged |
| Cassaday & Co Wealth Management LLC | 186 | $10.9K | 0.00% | +186 | New |
| Fortitude Family Office, LLC | 203 | $11.9K | 0.00% | +79+63.7% | Added |
| WPG Advisers, LLC | 230 | $13.5K | 0.01% | 00.0% | Unchanged |
| First Horizon Corp | 232 | $13.6K | 0.00% | 00.0% | Unchanged |
| Carolina Wealth Advisors, LLC | 243 | $14.3K | 0.01% | +243 | New |
| Financial Consulate, Inc | 250 | $14.7K | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 278 | $14.8K | 0.00% | −907−76.5% | Reduced |
| Allworth Financial LP | 331 | $19.4K | 0.00% | +231+231.0% | Added |
| Umb Bank N A | 337 | $19.8K | 0.00% | +6+1.8% | Added |
| Whittier Trust Co of Nevada Inc | 310 | $20.0K | 0.00% | +310 | New |
| NBC Securities, Inc. | 349 | $20.5K | 0.00% | −191−35.4% | Reduced |
| SRS Capital Advisors, Inc. | 365 | $21.4K | 0.00% | −536−59.5% | Reduced |
| Sterling Capital Management LLC | 369 | $21.7K | 0.00% | +18+5.1% | Added |
| Delos Wealth Advisors, LLC | 425 | $24.9K | 0.01% | +425 | New |
| Grove Bank & Trust | 457 | $26.8K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 461 | $27.1K | 0.00% | −454−49.6% | Reduced |
| Private Trust Co NA | 470 | $27.6K | 0.00% | −250−34.7% | Reduced |
| Kemnay Advisory Services Inc. | 470 | $27.6K | 0.00% | +470 | New |
| MAI Capital Management | 477 | $28.0K | 0.00% | −16−3.2% | Reduced |
| Hollencrest Capital Management | 500 | $29.3K | 0.00% | +500 | New |
| Versant Capital Management, Inc | 512 | $30.0K | 0.00% | +4+0.8% | Added |
| Salomon & Ludwin, LLC | 660 | $41.3K | 0.00% | +286+76.5% | Added |
| Clear Street Markets LLC | 717 | $42.1K | 0.02% | +717 | New |
| Huntington National Bank | 800 | $47.0K | 0.00% | 00.0% | Unchanged |
| STRS Ohio | 800 | $47.0K | 0.00% | +800 | New |
| Harbour Investments, Inc. | 817 | $48.0K | 0.00% | +594+266.4% | Added |
| Assetmark, Inc | 838 | $49.2K | 0.00% | −17−2.0% | Reduced |
| IFP Advisors, Inc | 852 | $50.0K | 0.00% | +840+7,000.0% | Added |
| Larson Financial Group LLC | 869 | $51.0K | 0.00% | +278+47.0% | Added |
| Northwestern Mutual Wealth Management Co | 965 | $56.6K | 0.00% | +165+20.6% | Added |
| Leonteq Securities AG | 1,144 | $67.1K | 0.00% | +1,144 | New |
| Quadrant Capital Group LLC | 1,190 | $69.8K | 0.00% | +409+52.4% | Added |
| Pinnacle Wealth Planning Services, Inc. | 1,234 | $72.4K | 0.01% | +32+2.7% | Added |
| Signature Equity Partners, LLC | 1,263 | $74.1K | 0.04% | −40−3.1% | Reduced |
| Covestor Ltd | 1,306 | $76.0K | 0.05% | −6,674−83.6% | Reduced |
| Nisa Investment Advisors, LLC | 1,360 | $79.8K | 0.00% | +444+48.5% | Added |
| CoreCap Advisors, LLC | 1,387 | $81.4K | 0.00% | −1,265−47.7% | Reduced |
| Farther Finance Advisors, LLC | 1,290 | $81.9K | 0.00% | +51+4.1% | Added |
| EverSource Wealth Advisors, LLC | 1,419 | $83.3K | 0.00% | +297+26.5% | Added |
| New Age Alpha Advisors, LLC | 1,437 | $84.3K | 0.00% | −26−1.8% | Reduced |
| Hantz Financial Services, Inc. | 1,455 | $85.0K | 0.00% | +237+19.5% | Added |
| Erste Asset Management GmbH | 1,637 | $87.2K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 1,542 | $90.5K | 0.00% | +63+4.3% | Added |
| Rockefeller Capital Management L.P. | 1,684 | $98.8K | 0.00% | +797+89.9% | Added |
| Vestcor Inc | 2,062 | $121.0K | 0.00% | +2,062 | New |
| KBC Group NV | 2,199 | $129.0K | 0.00% | +2,199 | New |
| Meeder Asset Management Inc | 2,213 | $129.9K | 0.01% | −2,274−50.7% | Reduced |
| Transamerica Financial Advisors, Inc. | 2,431 | $142.7K | 0.01% | +1,421+140.7% | Added |
| CWM, LLC | 2,525 | $148.2K | 0.00% | +906+56.0% | Added |
| O'Shaughnessy Asset Management, LLC | 3,477 | $204.1K | 0.00% | +3,477 | New |
| Everence Capital Management Inc | 3,551 | $208.0K | 0.01% | −4,199−54.2% | Reduced |