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 $5.04B 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
- 106.0M
- +5.06M (+5.0%) vs. Q1 2026
- Total value
- $5.04B
- −$877.3M (−14.8%) vs. Q1 2026
- New holders
- 92
- 174 more added
- Sold out
- 59
- 110 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 | $5.04B |
| Q1 2026 | 387 | $5.92B |
| Q4 2025 | 326 | $3.92B |
| Q3 2025 | 256 | $2.85B |
| Q2 2025 | 222 | $1.73B |
| Q1 2025 | 218 | $1.72B |
| Q4 2024 | 222 | $1.68B |
| Q3 2024 | 197 | $908.0M |
| Q2 2024 | 191 | $933.9M |
| Q1 2024 | 180 | $882.9M |
| Q4 2023 | 171 | $709.8M |
| Q3 2023 | 162 | $378.2M |
| Q2 2023 | 160 | $438.5M |
| Q1 2023 | 168 | $518.3M |
| Q4 2022 | 169 | $423.6M |
| Q3 2022 | 176 | $269.5M |
| Q2 2022 | 172 | $415.9M |
| Q1 2022 | 190 | $1.41B |
| Q4 2021 | 164 | $848.2M |
| Q3 2021 | 148 | $674.8M |
| Q2 2021 | 146 | $673.4M |
| Q1 2021 | 139 | $823.4M |
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 |
|---|---|---|---|---|---|
| Glencore plc | 29,690,702 | $1.37B | 28.07% | 00.0% | Unchanged |
| BlackRock, Inc. | 10,304,905 | $474.1M | 0.01% | +1,294,526+14.4% | Added |
| State Street Corp | 5,542,720 | $255.0M | 0.01% | +875,180+18.8% | Added |
| Vanguard Portfolio Management LLC | 4,773,720 | $219.6M | 0.01% | +532,163+12.5% | Added |
| Banque Cantonale Vaudoise | 3,612 | $166.0M | 0.02% | +3,612 | New |
| Assenagon Asset Management S.A. | 3,062,334 | $140.9M | 0.09% | +1,232,010+67.3% | Added |
| Vanguard Capital Management LLC | 2,972,532 | $136.8M | 0.00% | +386,425+14.9% | Added |
| Invesco Ltd. | 2,417,794 | $111.2M | 0.01% | +341,266+16.4% | Added |
| Sourcerock Group LLC | 2,266,085 | $104.3M | 5.42% | −421,164−15.7% | Reduced |
| Dimensional Fund Advisors LP | 2,211,502 | $101.8M | 0.02% | +20,580+0.9% | Added |
| FMR LLC | 1,960,353 | $90.2M | 0.00% | −699,701−26.3% | Reduced |
| Geode Capital Management, LLC | 1,846,800 | $85.0M | 0.00% | +306,588+19.9% | Added |
| Fisher Asset Management, LLC | 1,534,405 | $70.6M | 0.02% | +683,104+80.2% | Added |
| Morgan Stanley | 1,510,756 | $69.5M | 0.00% | −74,474−4.7% | Reduced |
| Millennium Management LLC | 1,116,217 | $51.4M | 0.03% | −871,408−43.8% | Reduced |
| Goldman Sachs Group Inc | 1,049,276 | $48.3M | 0.01% | +670,128+176.7% | Added |
| Impala Asset Management LLC | 1,035,000 | $47.6M | 27.00% | +60,000+6.2% | Added |
| Encompass Capital Advisors LLC | 900,000 | $41.4M | 1.79% | −651,362−42.0% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 870,850 | $40.1M | 0.05% | +70,719+8.8% | Added |
| UBS Group AG | 866,821 | $39.9M | 0.01% | +280,055+47.7% | Added |
| Boston Partners | 854,095 | $39.3M | 0.03% | +544,199+175.6% | Added |
| Qube Research & Technologies Ltd | 847,459 | $39.0M | 0.04% | +257,531+43.7% | Added |
| D. E. Shaw & Co., Inc. | 795,738 | $36.6M | 0.02% | −637,631−44.5% | Reduced |
| Kinetic Partners Management, LP | 776,700 | $35.7M | 0.85% | +245,000+46.1% | Added |
| Allspring Global Investments Holdings, LLC | 827,031 | $35.6M | 0.05% | +265,001+47.2% | Added |
| Balyasny Asset Management LLC | 759,603 | $34.9M | 0.06% | +664,535+699.0% | Added |
| First Eagle Investment Management, LLC | 724,720 | $33.3M | 0.03% | +561,633+344.4% | Added |
| Merewether Investment Management, LP | 693,537 | $31.9M | 0.60% | +178,737+34.7% | Added |
| Northern Trust Corp | 682,075 | $31.4M | 0.00% | +133,331+24.3% | Added |
| Squarepoint Ops LLC | 679,205 | $31.3M | 0.06% | +269,112+65.6% | Added |
| Woodline Partners LP | 626,772 | $28.8M | 0.09% | +626,772 | New |
| Bank of America Corp | 602,232 | $27.7M | 0.00% | −6,562−1.1% | Reduced |
| Charles Schwab Investment Management Inc | 594,927 | $27.4M | 0.00% | +50,416+9.3% | Added |
| Wellington Management Group LLP | 548,898 | $25.3M | 0.00% | +170,451+45.0% | Added |
| BW Gestao de Investimentos Ltda. | 523,162 | $24.1M | 0.58% | +214,404+69.4% | Added |
| Mountaineer Partners Management, LLC | 503,309 | $23.2M | 16.84% | −80,688−13.8% | Reduced |
| Jefferies Financial Group Inc. | 486,175 | $22.4M | 0.21% | +1,982+0.4% | Added |
| Massachusetts Financial Services Co | 456,244 | $22.3M | 0.01% | +443,747+3,550.8% | Added |
| Bridgewater Associates, LP | 473,928 | $21.8M | 0.09% | −258,589−35.3% | Reduced |
| Driehaus Capital Management LLC | 455,982 | $21.0M | 0.12% | +455,982 | New |
| Vanguard Fiduciary Trust Co | 427,306 | $19.7M | 0.00% | +49,011+13.0% | Added |
| Bank of New York Mellon Corp | 403,628 | $18.6M | 0.00% | +67,764+20.2% | Added |
| Voloridge Investment Management, LLC | 392,989 | $18.1M | 0.08% | −327,746−45.5% | Reduced |
| Capital World Investors | 391,417 | $18.0M | 0.00% | +391,417 | New |
| Royce & Associates LP | 372,044 | $17.1M | 0.14% | +107,703+40.7% | Added |
| Canada Pension Plan Investment Board | 365,400 | $16.8M | 0.01% | +336,900+1,182.1% | Added |
| Rokos Capital Management LLP | 355,002 | $16.3M | 0.21% | −81,686−18.7% | Reduced |
| JPMorgan Chase & Co | 347,166 | $16.3M | 0.00% | −169,457−32.8% | Reduced |
| Nuveen, LLC | 341,970 | $15.7M | 0.00% | +32,993+10.7% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 326,500 | $15.0M | 0.02% | +142,439+77.4% | Added |
| Steamboat Capital Partners, LLC | 296,666 | $13.6M | 2.92% | +20,418+7.4% | Added |
| Point72 Asset Management, L.P. | 294,555 | $13.6M | 0.02% | −274,896−48.3% | Reduced |
| Citadel Advisors LLC | 290,031 | $13.3M | 0.01% | −1,030,836−78.0% | Reduced |
| Principal Financial Group Inc | 276,827 | $12.7M | 0.01% | +16,401+6.3% | Added |
| Weiss Asset Management LP | 269,881 | $12.4M | 0.14% | +269,881 | New |
| BNP Paribas Arbitrage, SA | 269,169 | $12.4M | 0.01% | +155,917+137.7% | Added |
| Deutsche Bank AG | 263,726 | $12.1M | 0.00% | −334,299−55.9% | Reduced |
| Congress Asset Management Co | 255,636 | $11.8M | 0.07% | +2,201+0.9% | Added |
| Systematic Financial Management LP | 252,249 | $11.6M | 0.23% | +94,527+59.9% | Added |
| Great West Life Assurance Co | 244,346 | $11.2M | 0.02% | −31,059−11.3% | Reduced |
| Bank of Montreal | 228,556 | $10.5M | 0.00% | +820+0.4% | Added |
| Yaupon Capital Management LP | 223,861 | $10.3M | 0.34% | +12,660+6.0% | Added |
| Public Sector Pension Investment Board | 222,998 | $10.3M | 0.03% | −20,899−8.6% | Reduced |
| Wells Fargo & Company | 212,149 | $9.76M | 0.00% | +60,211+39.6% | Added |
| Barclays PLC | 209,641 | $9.65M | 0.00% | +66,342+46.3% | Added |
| First Trust Advisors LP | 201,727 | $9.28M | 0.01% | +136,061+207.2% | Added |
| Nicholas Investment Partners, LP | 197,999 | $9.11M | 0.51% | −94,403−32.3% | Reduced |
| AQR Capital Management LLC | 188,232 | $8.66M | 0.00% | +21,999+13.2% | Added |
| CDC Financial, Inc. | 181,430 | $8.35M | 6.41% | −65,250−26.5% | Reduced |
| Susquehanna International Group, LLP | 179,384 | $8.25M | 0.01% | +100,912+128.6% | Added |
| Alliancebernstein L.P. | 140,313 | $8.23M | 0.00% | −19,195−12.0% | Reduced |
| Victory Capital Management Inc | 177,069 | $8.15M | 0.00% | +113,240+177.4% | Added |
| Counterpoint Mutual Funds LLC | 166,967 | $7.68M | 0.76% | +155,381+1,341.1% | Added |
| Drummond Knight Asset Management Pty Ltd | 162,274 | $7.47M | 1.37% | −118,818−42.3% | Reduced |
| Russell Investments Group, Ltd. | 157,703 | $7.26M | 0.01% | +88,254+127.1% | Added |
| Rhumbline Advisers | 153,617 | $7.07M | 0.01% | −4,591−2.9% | Reduced |
| Ameriprise Financial Inc | 149,372 | $6.87M | 0.00% | +48,741+48.4% | Added |
| CSM Advisors, LLC | 146,212 | $6.73M | 0.14% | −9,472−6.1% | Reduced |
| Franklin Resources Inc | 144,112 | $6.63M | 0.00% | +19,296+15.5% | Added |
| Icon Advisers Inc | 140,500 | $6.46M | 1.22% | −32,700−18.9% | Reduced |
| Insight Wealth Strategies, LLC | 143,472 | $6.17M | 0.60% | −2,552−1.7% | Reduced |
| Swiss National Bank | 134,050 | $6.17M | 0.00% | +23,600+21.4% | Added |
| Neuberger Berman Group LLC | 133,927 | $6.16M | 0.00% | +60,776+83.1% | Added |
| Boothbay Fund Management, LLC | 133,461 | $6.14M | 0.11% | +50,516+60.9% | Added |
| CIBC World Markets Inc. | 132,202 | $6.08M | 0.01% | −28,430−17.7% | Reduced |
| Cohen & Steers, Inc. | 126,118 | $5.80M | 0.01% | +7,935+6.7% | Added |
| Picton Mahoney Asset Management | 125,902 | $5.79M | 0.05% | −169,428−57.4% | Reduced |
| Legal & General Group Plc | 123,069 | $5.66M | 0.00% | +10,506+9.3% | Added |
| Renaissance Group LLC | 118,147 | $5.44M | 0.22% | +110,732+1,493.4% | Added |
| Envestnet Asset Management Inc | 115,267 | $5.30M | 0.00% | +32,445+39.2% | Added |
| State of Wisconsin Investment Board | 109,502 | $5.04M | 0.01% | +9,260+9.2% | Added |
| Cinctive Capital Management LP | 107,201 | $4.93M | 0.20% | +59,036+122.6% | Added |
| Bessemer Group Inc | 102,496 | $4.72M | 0.01% | 00.0% | Unchanged |
| Raymond James Financial Inc | 101,421 | $4.67M | 0.00% | −8,171−7.5% | Reduced |
| UBS Asset Management Americas Inc | 100,220 | $4.61M | 0.00% | +3,903+4.1% | Added |
| Hudson Bay Capital Management LP | 100,000 | $4.60M | 0.02% | +92,529+1,238.5% | Added |
| Y-Intercept (Hong Kong) Ltd | 96,141 | $4.42M | 0.09% | +5,741+6.4% | Added |
| Renaissance Technologies LLC | 94,299 | $4.34M | 0.01% | −45,200−32.4% | Reduced |
| Prudential Financial Inc | 91,083 | $4.19M | 0.00% | +18,005+24.6% | Added |
| Van Eck Associates Corp | 89,352 | $4.11M | 0.00% | +89,352 | New |