CENTURY ALUMINUM COMPANY (CENX) Institutional Ownership Changes & 13F Activity

CENTURY ALUMINUM COMPANY (CENX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Invesco Ltd., Jane Street Group, Llc, Citadel Advisors Llc, Millennium Management Llc, and Goldman Sachs Group Inc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Manufacturers Life Insurance Company, TheBuy+18,598+66.6%46,518$2.14MQ2 2026Sep 09, 2026
Integrated Wealth Concepts LlcSell-3,482-21.8%12,480$574.21KQ2 2026Sep 09, 2026
Parkside Financial Bank & TrustBuy+2+1.9%107$4.92KQ2 2026Sep 04, 2026
Citadel Advisors LlcSell-1,030,836-78.0%290,031$13.34MQ2 2026Sep 02, 2026
Allianz Asset Management GmbhBuy+45,94545,945$2.11MQ2 2026Sep 02, 2026
First Eagle U.S. ValueBuy+199,273+122.2%362,360$16.67MQ2 2026Aug 24, 2026
California State Teachers Retirement SystemBuy+12,883+20.1%76,827$3.53MQ2 2026Aug 24, 2026
Assenagon Asset Management S.A.Sell-299,157-16.3%1,531,167$70.45MQ2 2026Aug 21, 2026
Mercer Global Advisors IncSell-577-5.4%10,111$465.19KQ2 2026Aug 19, 2026
Impala Asset Management LlcBuy+60,000+6.2%1,035,000$47.62MQ2 2026Aug 17, 2026
Empowered Funds, LlcBuy+39,151+569.1%46,031$2.12MQ2 2026Aug 17, 2026
Jefferies Financial Group Inc.Buy+1,982+0.4%486,175$22.37MQ2 2026Aug 17, 2026
Transamerica Financial Advisors, LlcBuy+287+11.8%2,718$125.06KQ2 2026Aug 17, 2026
Public Employees Retirement System Of OhioBuy+71+94.7%146$6.72KQ2 2026Aug 17, 2026
Invesco Ltd.Buy+2,417,7942,417,794$111.24MQ2 2026Aug 14, 2026
Jane Street Group, LlcSell-1,239,378-93.8%81,564$3.75MQ2 2026Aug 14, 2026
Millennium Management LlcSell-871,408-43.8%1,116,217$51.36MQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+670,128+176.7%1,049,276$48.28MQ2 2026Aug 14, 2026
Balyasny Asset Management L.P.Buy+664,535+699.0%759,603$34.95MQ2 2026Aug 14, 2026
Encompass Capital Advisors LlcSell-651,362-42.0%900,000$41.41MQ2 2026Aug 14, 2026
D. E. Shaw & Co., Inc.Sell-637,631-44.5%795,738$36.61MQ2 2026Aug 14, 2026
Woodline Partners LpBuy+626,772626,772$28.84MQ2 2026Aug 14, 2026
Driehaus Capital Management LlcBuy+455,982455,982$20.98MQ2 2026Aug 14, 2026
Sourcerock Group LlcSell-421,164-15.7%2,266,085$104.26MQ2 2026Aug 14, 2026
Canada Pension Plan Investment BoardBuy+336,900+1182.1%365,400$16.81MQ2 2026Aug 14, 2026
Voloridge Investment Management, LlcSell-327,746-45.5%392,989$18.08MQ2 2026Aug 14, 2026
Point72 Asset Management, L.P.Sell-274,896-48.3%294,555$13.55MQ2 2026Aug 14, 2026
Weiss Asset Management LpBuy+269,881269,881$12.42MQ2 2026Aug 14, 2026
Squarepoint Ops LlcBuy+269,112+65.6%679,205$31.25MQ2 2026Aug 14, 2026
Bridgewater Associates, LpSell-258,589-35.3%473,928$21.81MQ2 2026Aug 14, 2026
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Frequently asked questions about CENX activity

  • Which institutional owners are buying CENX?

    Institutional owners buying CENX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in CENX activity?

    "Buy" means an investor increased their reported position in CENX compared to the prior reporting period. This reflects growing exposure to CENTURY ALUMINUM COMPANY (CENX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in CENX increasing?

    Institutional interest in CENX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.