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 |
|---|---|---|---|
| Major company event | 8-K | 2019-08-01 | 2019-08-01 |
| Insider trade | 4 | 2019-07-02 | 2019-06-30 |
| Insider trade | 4 | 2019-06-20 | 2019-06-13 |
| Major company event | 8-K | 2019-06-06 | 2019-06-03 |
| Insider trade | 4 | 2019-06-05 | 2019-06-04 |
| Insider trade | 4 | 2019-06-05 | 2019-06-04 |
| Insider trade | 4 | 2019-06-05 | 2019-06-04 |
| Major company event | 8-K | 2019-05-29 | 2019-05-28 |
| Major company event (amended) | 8-K/A | 2019-05-15 | 2019-05-03 |
| Insider trade | 4 | 2019-05-14 | 2019-03-29 |
| EFFECT | - | 2019-05-09 | - |
| IRANNOTICE | - | 2019-05-08 | - |
| Quarterly report | 10-Q | 2019-05-08 | 2019-03-31 |
| Company correspondence | CORRESP | 2019-05-08 | - |
| S-3/A | - | 2019-05-07 | - |
| Major company event | 8-K | 2019-05-03 | 2019-05-03 |
| Major company event | 8-K | 2019-04-30 | 2019-04-30 |
| Proxy materials | DEFA14A | 2019-04-22 | - |
| Proxy statement | DEF 14A | 2019-04-22 | 2018-12-31 |
| Insider trade | 4 | 2019-04-02 | 2019-03-31 |
| Insider trade | 4 | 2019-03-25 | 2019-03-25 |
| Insider trade | 4 | 2019-03-25 | 2019-03-25 |
| Insider trade | 4 | 2019-03-25 | 2019-03-25 |
| Insider trade | 4 | 2019-03-25 | 2019-03-21 |
| SEC correspondence | UPLOAD | 2019-03-07 | - |
| Securities registration | S-3 | 2019-03-01 | - |
| IRANNOTICE | - | 2019-02-28 | - |
| Annual report | 10-K | 2019-02-28 | 2018-12-31 |
| Major company event | 8-K | 2019-02-21 | 2019-02-21 |
| Insider trade | 4 | 2019-02-19 | 2019-02-15 |
| POSASR | - | 2019-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2019-02-11 | - |
| Passive ownership stake (update) | SC 13G/A | 2019-02-08 | - |
| Annual insider summary | 5 | 2019-02-08 | 2018-12-31 |
| Passive ownership stake (update) | SC 13G/A | 2019-02-04 | - |
| Insider trade | 4 | 2019-01-03 | 2018-12-31 |
| Insider trade | 4 | 2019-01-03 | 2018-12-31 |
| Insider trade | 4 | 2019-01-03 | 2018-12-31 |
| Insider trade | 4 | 2019-01-03 | 2018-12-31 |
| Insider trade | 4 | 2019-01-03 | 2019-01-01 |
| Insider trade | 4 | 2019-01-03 | 2018-12-31 |
| Major company event | 8-K | 2018-11-28 | 2018-11-28 |
| IRANNOTICE | - | 2018-11-02 | - |
| Quarterly report | 10-Q | 2018-11-02 | 2018-09-30 |
| Insider trade | 4 | 2018-10-31 | 2018-10-30 |
| Insider trade | 4 | 2018-10-31 | 2018-10-29 |
| Major company event | 8-K | 2018-10-25 | 2018-10-25 |
| Major company event | 8-K | 2018-10-10 | 2018-10-10 |
| Major company event | 8-K | 2018-10-09 | 2018-10-09 |
| Insider trade | 4 | 2018-10-02 | 2018-09-30 |