CENX - CIK 0000949157
CENTURY ALUMINUM CO has filed 1,641 documents with the SEC between 1996 and 2026. The most frequent type is insider trade (656 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Securities registration | S-3 | 2004-03-17 | - |
| Major company event | 8-K | 2004-03-17 | 2004-03-16 |
| Annual report | 10-K | 2004-02-26 | 2003-12-31 |
| Major company event | 8-K | 2004-02-25 | 2004-02-24 |
| Passive ownership stake | SC 13G | 2004-02-17 | - |
| Passive ownership stake (update) | SC 13G/A | 2004-02-06 | - |
| Quarterly report | 10-Q | 2003-11-13 | 2003-09-30 |
| Insider trade | 4 | 2003-10-31 | 2003-10-29 |
| Major company event | 8-K | 2003-10-22 | 2003-10-21 |
| Major company event | 8-K | 2003-10-15 | 2003-10-15 |
| Passive ownership stake (update) | SC 13G/A | 2003-10-10 | - |
| Insider trade | 4 | 2003-08-27 | 2003-08-25 |
| Quarterly report | 10-Q | 2003-08-11 | 2003-06-30 |
| Major company event | 8-K | 2003-07-31 | 2003-07-30 |
| Employee plan annual report | 11-K | 2003-06-30 | 2002-12-31 |
| Employee plan annual report | 11-K | 2003-06-30 | 2002-12-31 |
| Insider trade | 4 | 2003-06-27 | 2003-06-25 |
| Insider trade | 4 | 2003-06-27 | 2003-06-25 |
| Insider trade | 4 | 2003-06-27 | 2003-06-25 |
| Insider trade | 4 | 2003-06-27 | 2003-06-25 |
| Insider trade | 4 | 2003-06-27 | 2003-06-25 |
| Insider trade | 4 | 2003-06-27 | 2003-06-25 |
| Insider trade | 4 | 2003-06-27 | 2003-06-25 |
| Major company event | 8-K | 2003-06-02 | 2003-06-02 |
| Annual report to shareholders | ARS | 2003-05-28 | 2002-12-31 |
| Proxy statement | DEF 14A | 2003-05-27 | 2003-06-24 |
| PRE 14A | - | 2003-05-16 | 2003-06-24 |
| Quarterly report | 10-Q | 2003-05-15 | 2003-03-31 |
| RW | - | 2003-05-12 | - |
| Major company event | 8-K | 2003-05-02 | 2003-05-02 |
| Annual report (amended) | 10-K/A | 2003-04-30 | 2002-12-31 |
| Major company event | 8-K | 2003-04-16 | 2003-04-16 |
| Securities registration | S-3 | 2003-03-24 | - |
| Annual report | 10-K | 2003-03-24 | 2002-12-31 |
| Annual insider summary | 5 | 2003-02-14 | 2002-12-31 |
| Annual insider summary | 5 | 2003-02-14 | 2002-12-31 |
| Annual insider summary | 5 | 2003-02-14 | 2002-12-31 |
| Annual insider summary | 5 | 2003-02-14 | 2002-12-31 |
| Annual insider summary | 5 | 2003-02-14 | 2002-12-31 |
| Annual insider summary | 5 | 2003-02-14 | 2002-12-31 |
| Passive ownership stake (update) | SC 13G/A | 2003-02-13 | - |
| Passive ownership stake (update) | SC 13G/A | 2003-02-12 | - |
| Insider trade | 4 | 2003-02-03 | 2003-01-30 |
| Major company event | 8-K | 2003-01-30 | 2003-01-30 |
| 3/A | - | 2003-01-16 | 2002-12-13 |
| Major company event | 8-K | 2003-01-16 | 2003-01-16 |
| New insider ownership | 3 | 2002-12-16 | 2002-12-13 |
| New insider ownership | 3 | 2002-12-16 | 2002-12-13 |
| New insider ownership | 3 | 2002-12-16 | 2002-12-13 |
| Insider trade | 4 | 2002-12-16 | 2002-12-13 |