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CENX

Century Aluminum Co

Company with tickers: CENX

CIK
949157
CUSIP
156431108
Shares Outstanding
98,974,047
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 166
Total Value: $2,923,695,843
Total Shares: 49,815,913
Showing 1–100 of 168 holdings by value · page 1 of 2

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 166 13F filers · Δ vs Dec 31, 2025
Top Holder
59.6%
+13.2 pts
Top 5
81.4%
+17.3 pts
Top 10
89.9%
+17.6 pts
HHI
3,707
Highly concentrated +1,430

Quarterly Activity

vs Dec 31, 2025
New
164
Increased
2
Decreased
0
Sold Out
329
Unchanged
0
Holder count: -165
Institutional value: -35.3%
Shares held: -56.8%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Mega HSBC HOLDINGS PLC +2,767 14,499
Small Essential Partners LLC +1 22

Top Sellers

vs Dec 31, 2025
No qualifying movers this quarter.

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Mid Glencore plc 29,690,702 $1,742,547,299
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 4,241,557 $248,936,980
Mega VANGUARD CAPITAL MANAGEMENT LLC 2,586,107 $151,778,619
Mega DIMENSIONAL FUND ADVISORS LP 2,190,922 $128,585,209
Large Assenagon Asset Management S.A. 1,830,324 $107,421,715

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Mid Glencore plc 53,511,894 $2,096,596,006
Mega BlackRock, Inc. 9,484,567 $371,605,329
Mega STATE STREET CORP 4,295,711 $168,305,956
Mid Sourcerock Group LLC 3,621,984 $141,909,333
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP 2,959,083 $115,936,871
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mid Glencore plc $1,742,547,299 59.60% 29,690,702 View
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $248,936,980 8.51% 4,241,557 View
Mega VANGUARD CAPITAL MANAGEMENT LLC $151,778,619 5.19% 2,586,107 View
Mega DIMENSIONAL FUND ADVISORS LP $128,585,209 4.40% 2,190,922 View
Large Assenagon Asset Management S.A. $107,421,715 3.67% 1,830,324 View
Mega UBS Group AG $67,520,614 2.31% 1,150,462 View
Mega Fisher Asset Management, LLC $49,962,855 1.71% 851,301 View
Mega DEUTSCHE BANK AG\ $35,098,086 1.20% 598,025 View
Mega UBS Group AG $34,437,296 1.18% 586,766 View
Large Allspring Global Investments Holdings, LLC $32,985,539 1.13% 562,030 View
Large Jefferies Financial Group Inc. $28,417,287 0.97% 484,193 View
Mega VANGUARD FIDUCIARY TRUST CO $22,202,133 0.76% 378,295 View
Small Westend Capital Management, LLC $22,189,104 0.76% 378,073 View
Mega Bank of New York Mellon Corp $19,711,855 0.67% 335,864 View
Large Boston Partners $18,187,796 0.62% 309,896 View
Mega Nuveen, LLC $18,133,859 0.62% 308,977 View
Mid BW Gestao de Investimentos Ltda. $18,121,007 0.62% 308,758 View
Small Drummond Knight Asset Management Pty Ltd $16,497,289 0.56% 281,092 View
Mega PRINCIPAL FINANCIAL GROUP INC $15,284,401 0.52% 260,426 View
Large CONGRESS ASSET MANAGEMENT CO $14,874,100 0.51% 253,435 View
Mega WELLS FARGO & COMPANY/MN $8,917,240 0.30% 151,938 View
Small Insight Wealth Strategies, LLC $8,570,148 0.29% 146,024 View
Mega Legal & General Group Plc $6,606,322 0.23% 112,563 View
Mega Swiss National Bank $6,482,310 0.22% 110,450 View
Large BESSEMER GROUP INC $6,015,489 0.21% 102,496 View
Mid Y-Intercept (Hong Kong) Ltd $5,305,576 0.18% 90,400 View
Mega ENVESTNET ASSET MANAGEMENT INC $4,860,823 0.17% 82,822 View
Mid SEGALL BRYANT & HAMILL, LLC $4,230,668 0.14% 72,085 View
Large Russell Investments Group, Ltd. $4,075,956 0.14% 69,449 View
Micro Aldebaran Capital, LLC $3,378,783 0.12% 57,570 View
Large NEW YORK STATE TEACHERS RETIREMENT SYSTEM $3,356,128 0.11% 57,184 View
Large FEDERATED HERMES, INC. $3,180,763 0.11% 54,196 View
Mega VANGUARD ASSET MANAGEMENT, Ltd $3,026,760 0.10% 51,572 View
Large NEW YORK STATE COMMON RETIREMENT FUND $2,987,379 0.10% 50,901 View
Mid Caprock Group, LLC $2,884,085 0.10% 49,141 View
Mega LPL Financial LLC $2,679,257 0.09% 45,651 View
Large State of New Jersey Common Pension Fund D $2,514,103 0.09% 42,837 View
Mid INTECH INVESTMENT MANAGEMENT LLC $2,444,849 0.08% 41,657 View
Small SummerHaven Investment Management, LLC $2,427,653 0.08% 41,364 View
Large Thrivent Financial for Lutherans $2,084,316 0.07% 35,514 View
Mid State of Alaska, Department of Revenue $1,746,790 0.06% 29,763 View
Mega CITIGROUP INC $1,541,902 0.05% 26,272 View
Large Aberdeen Group plc $1,501,935 0.05% 25,591 View
Mega Vanguard Global Advisers, LLC $1,450,816 0.05% 24,720 View
Mid Illinois Municipal Retirement Fund $1,420,532 0.05% 24,204 View
Mid Louisiana State Employees Retirement System $1,385,084 0.05% 23,600 View
Small Riverwater Partners LLC $1,329,328 0.05% 22,650 View
Mid Sigma Planning Corp $1,300,453 0.04% 22,158 View
Large MML INVESTORS SERVICES, LLC $1,216,526 0.04% 20,728 View
Large TRUIST FINANCIAL CORP $1,214,120 0.04% 20,687 View
Mid Hodges Capital Management Inc. $1,173,800 0.04% 20,000 View
Large STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM $1,080,365 0.04% 18,408 View
Mid Concurrent Investment Advisors, LLC $1,052,252 0.04% 17,929 View
Large ARIZONA STATE RETIREMENT SYSTEM $902,769 0.03% 15,382 View
Large Police & Firemen's Retirement System of New Jersey $900,539 0.03% 15,344 View
Large AMALGAMATED BANK $898,367 0.03% 15,307 View
Small SHEETS SMITH WEALTH MANAGEMENT $856,521 0.03% 14,594 View
Mega HSBC HOLDINGS PLC $850,946 0.03% 14,499 View
Large LOS ANGELES CAPITAL MANAGEMENT LLC $843,199 0.03% 14,367 View
Large FIFTH THIRD BANCORP $836,215 0.03% 14,248 View
Mid YOUSIF CAPITAL MANAGEMENT, LLC $833,867 0.03% 14,208 View
Mid ALLSTATE CORP $796,423 0.03% 13,570 View
Large SG Americas Securities, LLC $793,958 0.03% 13,528 View
Large Vanguard Investments Australia, Ltd. $784,567 0.03% 13,368 View
Large COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS $772,184 0.03% 13,157 View
Small Perennial Advisors, LLC $755,222 0.03% 12,868 View
Mid IMC-Chicago, LLC $744,189 0.03% 12,680 View
Large KLP KAPITALFORVALTNING AS $727,756 0.02% 12,400 View
Mid OREGON PUBLIC EMPLOYEES RETIREMENT FUND $713,846 0.02% 12,163 View
Small Counterpoint Mutual Funds LLC $679,982 0.02% 11,586 View
Large COMMONWEALTH EQUITY SERVICES, LLC $649,874 0.02% 11,073 View
Mid PARK AVENUE SECURITIES LLC $645,531 0.02% 10,999 View
Mid GSA CAPITAL PARTNERS LLP $625,048 0.02% 10,650 View
Small FCG Investment Co $610,904 0.02% 10,409 View
Large Pictet Asset Management Holding SA $562,661 0.02% 9,587 View
Large ProShare Advisors LLC $517,176 0.02% 8,812 View
Small Caitong International Asset Management Co., Ltd $469,813 0.02% 8,005 View
Large Walleye Trading LLC $463,651 0.02% 7,900 View
Small Summit Global Investments $461,655 0.02% 7,866 View
Mid Maryland State Retirement & Pension System $455,258 0.02% 7,757 View
Large HighTower Advisors, LLC $445,633 0.02% 7,593 View
Mid Savant Capital, LLC $399,209 0.01% 6,802 View
Mid Vise Technologies, Inc. $388,293 0.01% 6,616 View
Mid HIGHLAND CAPITAL MANAGEMENT, LLC $374,559 0.01% 6,382 View
Mid JOURNEY STRATEGIC WEALTH LLC $372,505 0.01% 6,347 View
Small ANB BANK $358,361 0.01% 6,106 View
Mid MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC $357,363 0.01% 6,089 View
Small Everhart Financial Group, Inc. $350,379 0.01% 5,970 View
Mid Brooklyn Investment Group $349,851 0.01% 5,961 View
Mid Sequoia Financial Advisors, LLC $337,467 0.01% 5,750 View
Mid PNC FINANCIAL SERVICES GROUP, INC. $298,730 0.01% 5,090 View
Mid Belpointe Asset Management LLC $298,145 0.01% 5,080 View
Micro Kraft, Davis & Associates, LLC $296,854 0.01% 5,058 View
Mid Compagnie Lombard Odier SCmA $266,452 0.01% 4,540 View
Mid Crossmark Global Holdings, Inc. $262,402 0.01% 4,471 View
Mid GAMMA Investing LLC $256,651 0.01% 4,373 View
Mid Moran Wealth Management, LLC $249,315 0.01% 4,248 View
Large Cambridge Investment Research Advisors, Inc. $229,419 0.01% 3,909 View
Small Madrona Financial Services, LLC $215,979 0.01% 3,680 View
Mid PRAXIS INVESTMENT MANAGEMENT INC $208,408 0.01% 3,551 View
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