Century Aluminum Company (CENX)
Nasdaq: CENX · Primary Production of Aluminum · Chicago, IL · filing with the SEC since 1996
Grade4.1
◀ Past 3.4● Present 4.7▶ Future 3.9
Filings
300 filings since 2017 beside 288 insider forms · Large accelerated filer · read from EDGAR on Nov 13, 2026Due nextLarge accelerated filer
10-K
Annual report for the fiscal year ending Dec 31, 2026Large accelerated filers have 60 days after the fiscal year ends.
by Mar 1, 2027
10-Q
Quarterly report for the quarter ending Mar 31, 2027Large accelerated filers have 40 days after the quarter ends; quarter ends are taken to the month end.
by May 10, 2027
A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 36 days after the quarter ended. The proxy statement was last filed Apr 24, 2026.
Filings a yearinsider forms included
5368645250576764
2026 counts to Nov 13, 2026.
Warning not to rely on past financial statements (8-K item 4.02): 1 time in the last 36 months, the newest Mar 3, 2026.Officer or director change (8-K item 5.02): 3 times in the last 36 months, the newest Mar 21, 2025.SEC letters: 18 in the last 36 months, the newest Mar 12, 2026.A late-filing notice, Form NT 10-K, filed Mar 3, 2026.
Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.
FiledFormWhat it is, in plain wordsPeriodAsk
Mar 3, 2026
8-K item 4.02
Warning not to rely on past financial statements · Current report
Mar 2, 2026
Feb 2, 2026
8-K items 1.01, 2.01, 7.01, 9.01
Major agreement signed; Purchase or sale of a business completed; Investor disclosure (Regulation FD) · Current report
Jul 24, 2025
8-K items 1.01, 1.02, 2.03, 7.01, 9.01
Major agreement signed; Major agreement ended; New debt or obligation taken on; Investor disclosure (Regulation FD) · Current report
Jul 22, 2025
40 of 300 shown
Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.