Century Aluminum Company (CENX) Institutional Ownership & Insider Trading

413 institutions reported holding Century Aluminum Company shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 13 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

CENXCentury Aluminum CompanyFollow CENX — free

Aluminum · Basic Materials

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Market cap: 3.1B
P/E TTM: 5.4
Dividend yield: —
52-week: —
Next earnings: 9 Nov, in 16 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

413 institutions held —% of the shares. Across filers that reported both quarters, shares held changed +5.1%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	413	106	+5.1%	164	70	102	49
Mar 26	380	101	+1.0%	116	92	111	35
Dec 25	323	100	+2.8%	97	88	83	22
Sep 25	250	97	+1.2%	73	55	76	27
Jun 25	220	95	+3.6%	80	39	66	31
Mar 25	215	92	-0.2%	67	41	75	44
Dec 24	222	92	-6.4%	65	44	62	25
Sep 24	196	55	-4.5%	54	40	67	34

Century Aluminum Company — questions

Who owns Century Aluminum Company stock?: 413 institutions reported Century Aluminum Company shares in 13F filings for the quarter ended 2026-06-30. The largest: Glencore plc (30.0%), BlackRock, Inc. (10.4%), STATE STREET CORP (5.6%).
Are Century Aluminum Company insiders buying or selling?: 13 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Century Aluminum Company's own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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