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Disclosery

CENX CENTURY ALUM CO

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COM (common), issuer CIK 949157

322 managers (326 13F filers) reported a position in CENX shares at 2025-12-31, 99,917,025 shares in all. 92 filers opened a position and 27 filers sold out during the quarter.

Managers
322
13F filers
326
New
92
Added
108
Reduced
92
Sold out
27
Shares held by filers
99,917,025

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Glencore plcin group Glencore plc36,005,947$1.41B32.56%-4,051,40913F-HR/ATimelineGroup
BlackRock, Inc.in group BlackRock, Inc.9,484,567$372M0.01%-643,39213F-HRTimelineGroup
VANGUARD GROUP INCgroup of 2 filers holding6,950,355$272M+1,094,149Timeline
STATE STREET CORPin group STATE STREET CORP4,295,711$168M0.01%+77,89513F-HRTimelineGroup
Sourcerock Group LLC3,621,984$142M8.12%+981,51913F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP2,765,132$108M0.02%-296,10213F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding1,858,360$72.8M+523,983Timeline
MORGAN STANLEYin group MORGAN STANLEY1,609,093$63M<0.01%+176,73013F-HR/ATimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…1,493,823$58.5M0.09%+36,42213F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC1,418,032$55.6M0.04%+975,35913F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,318,503$51.7M<0.01%-49313F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.1,190,937$46.7M0.04%+989,34313F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC974,241$38.2M0.02%+206,54913F-HRTimelineGroup
VOLORIDGE INVESTMENT MANAGEMENT, LLC940,325$36.8M0.13%+143,44213F-HRTimeline
Assenagon Asset Management S.A.872,753$34.2M0.05%+464,81413F-HRTimeline
Fisher Asset Management, LLC866,944$34M0.01%-99,63113F-HRTimeline
Impala Asset Management LLC857,805$33.6M21.17%+168,80513F-HRTimeline
Qube Research & Technologies Ltd726,192$28.5M0.04%-96,93813F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC697,217$27.3M0.02%-808,47913F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC665,702$26.1M<0.01%+115,59913F-HR/ATimelineGroup
Invesco Ltd.in group Invesco Ltd.629,412$24.7M<0.01%-220,11013F-HRTimelineGroup
Mountaineer Partners Management, LLC608,475$23.8M13.34%-52,56813F-HRTimeline
Boston Partnersin group Boston Trust Walden Corp600,237$23.5M0.02%-539,42413F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co535,924$21M<0.01%-6,36613F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP521,762$20.4M<0.01%+3,60013F-HRTimelineGroup
Burkehill Global Management, LP500,000$19.6M1.29%new13F-HRTimeline
Encompass Capital Advisors LLCin group Encompass Capital Advisors LLC499,837$19.6M0.94%-311,32513F-HRTimelineGroup
Allspring Global Investments Holdings, …in group Allspring Global Investments …455,876$18.7M0.03%+434,09713F-HRTimelineGroup
ANTIPODES PARTNERS Ltd423,789$16.6M0.35%new13F-HRTimeline
Steamboat Capital Partners, LLC423,808$16.6M4.56%-48,12113F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding400,637$15.7M+49,579Timeline
Westend Capital Management, LLC374,274$14.7M4.11%new13F-HRTimeline
TUDOR INVESTMENT CORP ET AL365,857$14.3M0.08%new13F-HRTimeline
Walleye Capital LLCgroup of 2 filers holding359,313$14.1M+245,180Timeline
CDC Financial, Inc.344,200$13.5M11.83%13F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp335,401$13.1M<0.01%-1,47913F-HRTimelineGroup
South Dakota Investment Council317,361$12.4M0.24%-63,80013F-HRTimeline
ROYCE & ASSOCIATES LP314,289$12.3M0.12%+165,82913F-HRTimeline
Drummond Knight Asset Management Pty Ltd313,376$12.3M3.44%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/307,526$12M<0.01%-89,70513F-HRTimelineGroup
First Eagle Investment Management, LLCin group First Eagle Investment Manage…301,612$11.8M0.02%-38,54113F-HRTimelineGroup
Nicholas Investment Partners, LP290,960$11.4M0.83%new13F-HRTimeline
Trek Financial, LLC281,376$11M0.64%new13F-HRTimeline
Bridgewater Associates, LP271,798$10.6M0.04%new13F-HRTimeline
Bornite Capital Management LP250,000$9.79M0.96%new13F-HRTimeline
WEXFORD CAPITAL LP244,649$9.59M2.47%+38,13613F-HRTimeline
ICON ADVISERS INC/CO242,000$9.48M2.05%013F-HRTimeline
Baird Financial Group, Inc.in group Baird Financial Group, Inc.240,610$9.43M0.01%+86,03213F-HRTimelineGroup
CSM Advisors, LLC224,180$8.78M0.24%-74,02413F-HRTimeline
Hartree Partners, LP216,688$8.49M3.1%-1,07713F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO214,173$8.39M<0.01%-210,07913F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…210,483$8.25M0.01%-7,66813F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN206,691$8.1M<0.01%+50,27113F-HRTimelineGroup
CONGRESS ASSET MANAGEMENT CO206,439$8.09M0.06%+3,83013F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…197,843$7.75M<0.01%+3,74913F-HRTimelineGroup
Public Sector Pension Investment Board184,343$7.22M0.02%-23,17813F-HRTimeline
BW Gestao de Investimentos Ltda.183,669$7.2M0.25%+83,66913F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD173,939$6.81M0.02%+46,23913F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.172,408$6.75M0.01%new13F-HRTimelineGroup
SYSTEMATIC FINANCIAL MANAGEMENT LP166,527$6.52M0.15%new13F-HRTimeline
Edgestream Partners, L.P.157,424$6.17M0.17%+55713F-HRTimeline
ExodusPoint Capital Management, LP155,087$6.08M0.07%new13F-HRTimeline
Insight Wealth Strategies, LLC154,066$6.04M0.69%new13F-HRTimeline
Wealth High Governance Asset Management…152,566$5.98M1.07%13F-HR/ATimeline
RHUMBLINE ADVISERS151,349$5.93M<0.01%+4,09513F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC147,795$5.79M0.15%+27,87713F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…147,792$5.79M0.01%-110,21313F-HRTimelineGroup
Kailix Advisors LLC146,550$5.74M6.4%new13F-HRTimeline
COHEN & STEERS, INC.in group COHEN & STEERS, INC.142,769$5.59M0.01%-56,23113F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd141,200$5.53M0.12%+91,08613F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC130,259$5.1M<0.01%+53913F-HRTimelineGroup
Schonfeld Strategic Advisors LLC127,957$5.01M0.03%+83,60913F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc125,404$4.91M<0.01%-7,99513F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…120,000$4.7M0.01%-175,00013F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC117,999$4.62M0.01%-247,10013F-HRTimeline
Nuveen, LLCin group TIAA117,310$4.6M<0.01%+65713F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co116,511$4.57M0.01%+71,65513F-HRTimelineGroup
Woodline Partners LP115,294$4.52M0.02%-104,97013F-HRTimeline
Quantbot Technologies LP112,966$4.43M0.15%+79,13713F-HRTimeline
Swiss National Bank110,450$4.33M<0.01%+2,00013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\108,278$4.24M<0.01%+3,29213F-HRTimelineGroup
Marnell Management LLC107,056$4.19M3.19%13F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC106,990$4.19M<0.01%+98313F-HRTimeline
Trexquant Investment LP106,716$4.18M0.04%-82,63913F-HRTimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.106,700$4.18M0.03%-106,65013F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC104,819$4.11M<0.01%+18,48913F-HRTimelineGroup
BESSEMER GROUP INCin group BESSEMER GROUP INC102,393$4.01M0.01%+102,20413F-HRTimelineGroup
CAXTON ASSOCIATES LLP101,449$3.97M0.08%+39,09213F-HRTimeline
Thomist Capital Management, LP100,000$3.97M1.08%+16,00913F-HRTimeline
SEGALL BRYANT & HAMILL, LLC99,528$3.9M0.05%+57,95913F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS99,079$3.88M<0.01%-17,14013F-HRTimelineGroup
Voleon Capital Management LP97,790$3.83M0.08%+29,76013F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC97,550$3.82M<0.01%-45,25913F-HRTimelineGroup
Wealth High Governance Capital Ltda97,434$3.82M1.12%-52,56613F-HR/ATimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP97,419$3.82M<0.01%new13F-HRTimelineGroup
Campbell & CO Investment Adviser LLC97,144$3.81M0.18%-46,00013F-HRTimeline
Informed Momentum Co LLC94,627$3.71M0.41%new13F-HRTimeline
Atom Investors LP83,374$3.27M0.26%new13F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…81,171$3.18M0.01%-55713F-HRTimeline
NOMURA HOLDINGS INCin group NOMURA ASSET MANAGEMENT CO LTD79,343$3.11M0.01%new13F-HRTimelineGroup
Headlands Technologies LLC77,432$3.03M0.25%+5,74113F-HRTimeline
ALLIANCEBERNSTEIN L.P.75,318$2.95M<0.01%+9,07513F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC75,125$2.94M<0.01%new13F-HRTimelineGroup
HRT FINANCIAL LP73,502$2.88M0.01%new13F-HRTimeline
CoreCommodity Management, LLC69,384$2.72M0.57%-17,44813F-HRTimeline
LPL Financial LLC68,524$2.68M<0.01%+9,25213F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC65,305$2.56M<0.01%-76813F-HRTimelineGroup
Monaco Asset Management SAM65,000$2.55M0.76%-103,75213F-HRTimeline
Parallax Volatility Advisers, L.P.61,314$2.4M0.07%+21,69813F-HRTimeline
Fort Baker Capital Management LP60,000$2.35M0.26%new13F-HRTimeline
Aldebaran Capital, LLC57,700$2.26M2.03%-1,86513F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…57,600$2.26M<0.01%new13F-HRTimeline
State of Wyoming56,929$2.23M0.24%+7,10113F-HRTimeline
Verition Fund Management LLC54,280$2.13M0.01%-29,03813F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO52,852$2.07M<0.01%-29,52113F-HRTimelineGroup
Natixis Investment Managersgroup of 2 filers holding51,991$2.04M+32,132Timeline
PRICE T ROWE ASSOCIATES INC /MD/51,725$2.03M<0.01%+2,21713F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…51,225$2.01M<0.01%-1813F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.50,432$1.98M<0.01%+35,01613F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC50,273$1.97M<0.01%-7,80413F-HRTimelineGroup
Beartown Capital Management, LLC50,000$1.96M1.53%13F-HRTimeline
ALGERT GLOBAL LLC49,593$1.94M0.03%-4,35013F-HR/ATimeline
Engineers Gate Manager LP49,524$1.94M0.02%-2,35713F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC49,349$1.93M0.02%-29,92413F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND49,121$1.92M<0.01%+33,77713F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources47,380$1.86M<0.01%+83213F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP46,609$1.83M0.16%+26,55213F-HRTimeline
SummerHaven Investment Management, LLC43,479$1.7M0.97%013F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd42,614$1.67M0.06%-6,29813F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC41,518$1.63M<0.01%-124,72813F-HRTimelineGroup
Legato Capital Management LLC40,973$1.61M0.14%new13F-HRTimeline
IMC-Chicago, LLC37,790$1.48M0.03%new13F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC37,219$1.46M<0.01%-7,07313F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA37,189$1.46M<0.01%-233,27813F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…36,560$1.43M<0.01%-1,82213F-HRTimelineGroup
Lighthouse Investment Partners, LLCin group Lighthouse Investment Partner…35,000$1.37M0.05%+10,52113F-HRTimelineGroup
CAPITAL FUND MANAGEMENT S.A.34,505$1.35M0.01%new13F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/34,469$1.35M<0.01%+4,64713F-HRTimelineGroup
Sigma Planning Corp31,870$1.25M0.03%new13F-HRTimeline
State of Alaska, Department of Revenue30,604$1.2M0.01%+44113F-HRTimeline
Polymer Capital Management (US) LLC30,000$1.18M0.15%+20,70313F-HRTimeline
Aberdeen Group plcin group Aberdeen Group plc29,822$1.17M<0.01%+2,52513F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…29,515$1.16M0.01%-1,78313F-HRTimelineGroup
O'Neil Global Advisors, Inc.28,741$1.13M0.39%new13F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC28,614$1.12M0.04%new13F-HRTimelineGroup
OCCUDO QUANTITATIVE STRATEGIES LP28,548$1.12M0.07%-8,19113F-HRTimeline
Illinois Municipal Retirement Fund28,526$1.12M0.01%+1,15013F-HRTimeline
Entropy Technologies, LP26,953$1.06M0.06%+83013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC26,383$1.03M<0.01%+9,53413F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…26,270$1.03M<0.01%+8,59213F-HRTimeline
Oceanic Investment Management LTD25,988$1.02M1.07%13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …25,690$1.01M<0.01%+51613F-HRTimelineGroup
HIMENSION CAPITAL (SINGAPORE) PTE. LTD.25,250$989K0.06%new13F-HRTimeline
Scientech Research LLC24,680$967K0.61%+7,02013F-HRTimeline
Lombard Odier Asset Management (USA) Co…24,659$966K0.39%-51,84113F-HRTimeline
Louisiana State Employees Retirement Sy…24,400$956K0.02%-10013F-HRTimeline
Ruffer LLP23,851$936K0.04%new13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS23,233$910K<0.01%-10,01613F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC23,178$908K0.07%new13F-HRTimeline
MML INVESTORS SERVICES, LLC23,167$908K<0.01%new13F-HRTimeline
Concurrent Investment Advisors, LLCin group Concurrent Investment Advisor…22,935$899K0.01%new13F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson22,906$898K<0.01%013F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd22,081$865K0.01%new13F-HRTimelineGroup
State of Tennessee, Department of Treas…18,772$851K<0.01%+6,15213F-HRTimeline
Cambria Investment Management, L.P.20,902$819K0.05%-8,94013F-HRTimeline
SG Americas Securities, LLC20,732$812K<0.01%+9513F-HRTimeline
Creative Planningin group Creative Planning20,073$786K<0.01%+8,91013F-HRTimelineGroup
Hodges Capital Management Inc.20,000$784K0.07%013F-HRTimeline
Perennial Advisors, LLC19,368$759K0.13%013F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…18,408$721K<0.01%-4,81113F-HRTimeline
Graham Capital Management, L.P.17,933$703K0.02%new13F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC14,283$684K0.01%-2,17013F-HRTimeline
ARISTEIA CAPITAL, L.L.C.16,522$647K0.02%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.16,275$638K<0.01%-44,32613F-HRTimelineGroup
PharVision Advisers, LLC16,022$628K0.32%+6,14313F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM15,663$614K<0.01%-89913F-HRTimeline
AMALGAMATED BANK15,447$605K<0.01%+7113F-HRTimeline
Callan Family Office, LLCin group Callan Family Office, LLC14,719$577K0.01%+1313F-HRTimelineGroup
SHEETS SMITH WEALTH MANAGEMENT14,657$574K0.06%+5,30813F-HRTimeline
COMERICA BANK14,552$570K<0.01%-1,66413F-HRTimeline
Police & Firemen's Retirement System of…14,466$567K<0.01%013F-HRTimeline
EntryPoint Capital, LLC14,410$565K0.22%+7,37113F-HRTimeline
Cambridge Investment Research Advisors,…14,205$557K<0.01%new13F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…13,265$519K<0.01%-1,56213F-HRTimeline
VIRGINIA RETIREMENT SYSTEMS ET Al13,200$517K<0.01%-3,50013F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…13,172$516K<0.01%-37713F-HRTimeline
CHESAPEAKE ASSET MANAGEMENT LLC13,015$510K0.42%new13F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC12,806$502K<0.01%-80613F-HRTimelineGroup
Three Seasons Wealth, LLC12,639$495K0.05%013F-HRTimeline
AlphaQuest LLC12,622$495K0.03%+2,63813F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND12,202$478K0.01%+20013F-HRTimeline
KLP KAPITALFORVALTNING AS12,000$470K<0.01%+1,10013F-HRTimeline
DARK FOREST CAPITAL MANAGEMENT LP11,992$470K0.02%new13F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC11,732$460K<0.01%-13,15813F-HR/ATimelineGroup
PARK AVENUE SECURITIES LLCin group PARK AVENUE SECURITIES LLC11,583$454K<0.01%+1,34713F-HRTimelineGroup
Numerai GP LLC11,333$444K0.05%-22,66413F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC11,198$439K<0.01%+4613F-HRTimelineGroup
Quantinno Capital Management LP10,395$407K<0.01%+22713F-HRTimeline
Lido Advisors, LLCin group Lido Advisors, LLC12,911$406K<0.01%+19613F-HRTimelineGroup
ProShare Advisors LLC10,269$402K<0.01%+30813F-HRTimeline

Events

  • BlackRock, Inc. reported 10,395,973 CENX shares, 10.5% of the class, as of 2026-09-30, in a 13G/A filed 2026-10-05. 0002012383-26-003330

    Accepted , ingested