CENX Century Aluminum Company
Century Aluminum Company (CENX) Institutional Ownership
What the institutions did with CENX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Glencore plc | 29.7M | 28.0% |
| BlackRock, Inc. | 10.3M | 9.7% |
| STATE STREET CORP | 5.5M | 5.2% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.8M | 4.5% |
| Assenagon Asset Management S.A. | 3.1M | 2.9% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.0M | 2.8% |
| Invesco Ltd. | 2.4M | 2.3% |
| Sourcerock Group LLC | 2.3M | 2.1% |
| DIMENSIONAL FUND ADVISORS LP | 2.2M | 2.1% |
| FMR LLC | 2.0M | 1.8% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8M | 1.7% |
| Fisher Asset Management, LLC | 1.5M | 1.4% |
| MORGAN STANLEY | 1.5M | 1.4% |
| Impala Asset Management LLC | 1.2M | 1.1% |
| MILLENNIUM MANAGEMENT LLC | 1.1M | 1.1% |
| GOLDMAN SACHS GROUP INC | 1.0M | 1.0% |
| Encompass Capital Advisors LLC | 900.0K | 0.8% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 870.9K | 0.8% |
| UBS Group AG | 866.8K | 0.8% |
| Boston Partners | 854.1K | 0.8% |
| Qube Research & Technologies Ltd | 847.5K | 0.8% |
| Allspring Global Investments Holdings, LLC | 827.0K | 0.8% |
| D. E. Shaw & Co., Inc. | 795.7K | 0.7% |
| Kinetic Partners Management, LP | 776.7K | 0.7% |
| Balyasny Asset Management L.P. | 759.6K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Increased | 9.0M | 10.3M | +1.3M |
| JANE STREET GROUP, LLC | Reduced | 1.3M | 81.6K | -1.2M |
| Assenagon Asset Management S.A. | Increased | 1.8M | 3.1M | +1.2M |
| CITADEL ADVISORS LLC | Reduced | 1.3M | 290.0K | -1.0M |
| STATE STREET CORP | Increased | 4.7M | 5.5M | +875.2K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 2.0M | 1.1M | -871.4K |
| FMR LLC | Reduced | 2.7M | 2.0M | -699.7K |
| Fisher Asset Management, LLC | Increased | 851.3K | 1.5M | +683.1K |
| GOLDMAN SACHS GROUP INC | Increased | 379.1K | 1.0M | +670.1K |
| Balyasny Asset Management L.P. | Increased | 95.1K | 759.6K | +664.5K |
| Encompass Capital Advisors LLC | Reduced | 1.6M | 900.0K | -651.4K |
| D. E. Shaw & Co., Inc. | Reduced | 1.4M | 795.7K | -637.6K |
| Woodline Partners LP | New | 0 | 626.8K | +626.8K |
| First Eagle Investment Management, LLC | Increased | 163.1K | 724.7K | +561.6K |
| Boston Partners | Increased | 309.9K | 854.1K | +544.2K |
| Bornite Capital Management LP | Sold Out | 542.0K | 0 | -542.0K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 4.2M | 4.8M | +532.2K |
| Driehaus Capital Management LLC | New | 0 | 456.0K | +456.0K |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Increased | 12.5K | 456.2K | +443.7K |
| Sourcerock Group LLC | Reduced | 2.7M | 2.3M | -421.2K |
| Capital World Investors | New | 0 | 391.4K | +391.4K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 2.6M | 3.0M | +386.4K |
| Westend Capital Management, LLC | Reduced | 378.1K | 2 | -378.1K |
| Invesco Ltd. | Increased | 2.1M | 2.4M | +341.3K |
| CANADA PENSION PLAN INVESTMENT BOARD | Increased | 28.5K | 365.4K | +336.9K |
| DEUTSCHE BANK AG\ | Reduced | 598.0K | 263.7K | -334.3K |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Reduced | 720.7K | 393.0K | -327.7K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.5M | 1.8M | +306.6K |
| UBS Group AG | Increased | 586.8K | 866.8K | +280.1K |
| TUDOR INVESTMENT CORP ET AL | Sold Out | 279.2K | 0 | -279.2K |
| Point72 Asset Management, L.P. | Reduced | 569.5K | 294.6K | -274.9K |
| Weiss Asset Management LP | New | 0 | 269.9K | +269.9K |
| Squarepoint Ops LLC | Increased | 410.1K | 679.2K | +269.1K |
| Allspring Global Investments Holdings, LLC | Increased | 562.0K | 827.0K | +265.0K |
| Wealth High Governance Asset Management Ltda. | Sold Out | 259.5K | 0 | -259.5K |
| Bridgewater Associates, LP | Reduced | 732.5K | 473.9K | -258.6K |
| Qube Research & Technologies Ltd | Increased | 589.9K | 847.5K | +257.5K |
| Engineers Gate Manager LP | Reduced | 297.5K | 45.7K | -251.8K |
| Kinetic Partners Management, LP | Increased | 531.7K | 776.7K | +245.0K |
| AMERICAN CENTURY COMPANIES INC | Sold Out | 232.0K | 0 | -232.0K |
| BW Gestao de Investimentos Ltda. | Increased | 308.8K | 523.2K | +214.4K |
| Impala Asset Management LLC | Increased | 975.0K | 1.2M | +210.0K |
| Merewether Investment Management, LP | Increased | 514.8K | 693.5K | +178.7K |
| HRT FINANCIAL LP | Reduced | 196.0K | 19.0K | -177.0K |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 378.4K | 548.9K | +170.5K |
| JPMORGAN CHASE & CO | Reduced | 516.6K | 347.2K | -169.5K |
| PICTON MAHONEY ASSET MANAGEMENT | Reduced | 295.3K | 125.9K | -169.4K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 113.3K | 269.2K | +155.9K |
| Counterpoint Mutual Funds LLC | Increased | 11.6K | 167.0K | +155.4K |
| Burkehill Global Management, LP | Sold Out | 150.0K | 0 | -150.0K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | Increased | 184.1K | 326.5K | +142.4K |
| Wealth High Governance Capital Ltda | Sold Out | 140.5K | 0 | -140.5K |
| FIRST TRUST ADVISORS LP | Increased | 65.7K | 201.7K | +136.1K |
| NORTHERN TRUST CORP | Increased | 548.7K | 682.1K | +133.3K |
| Drummond Knight Asset Management Pty Ltd | Reduced | 281.1K | 162.3K | -118.8K |
| VICTORY CAPITAL MANAGEMENT INC | Increased | 63.8K | 177.1K | +113.2K |
| RENAISSANCE GROUP LLC | Increased | 7.4K | 118.1K | +110.7K |
| ROYCE & ASSOCIATES LP | Increased | 264.3K | 372.0K | +107.7K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 78.5K | 179.4K | +100.9K |
| Portolan Capital Management, LLC | Sold Out | 95.0K | 0 | -95.0K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.