Century Aluminum Co
CENXNasdaqCIK 949157MaterialsFiscal year ends Dec 31
Reports and events: 346 filings
Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.
What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.
| Filed | Form | What it is | Accession number |
|---|---|---|---|
| 2026-08-0620:11 ET | 10-Q | Quarterly reportPeriod 2026-06-30 | 0001628280-26-054308 |
| 2026-08-0620:09 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-26-054300 |
| 2026-06-1720:35 ET | 8-K | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001628280-26-043936 |
| 2026-05-0720:10 ET | 10-Q | Quarterly reportPeriod 2026-03-31 | 0001628280-26-032094 |
| 2026-05-0720:06 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-26-032082 |
| 2026-04-2413:00 ET | DEF 14A | Proxy statementPeriod 2026-06-15 | 0001552781-26-000269 |
| 2026-03-0421:49 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001104659-26-023524 |
| 2026-03-0321:07 ET | 10-K | Annual reportPeriod 2025-12-31 | 0001628280-26-013788 |
| 2026-03-0321:05 ET | 8-K | 4.02 Non-reliance on financial statements | 0001628280-26-013781 |
| 2026-02-1921:46 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-26-009831 |
| 2026-02-0221:17 ET | 8-K | 1.01 Entry into a material agreement; 2.01 Completion of an acquisition or disposition; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-26-009212 |
| 2025-11-2121:18 ET | 8-K/A | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-053603 |
| 2025-11-1215:02 ET | SCHEDULE 13D/A | Ownership report, active investor, amended | 0001104659-25-109946 |
| 2025-11-0621:21 ET | 10-Q | Quarterly reportPeriod 2025-09-30 | 0001628280-25-050200 |
| 2025-11-0621:13 ET | 8-K | 2.01 Completion of an acquisition or disposition; 9.01 Financial statements and exhibits | 0001628280-25-050179 |
| 2025-10-2221:35 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-25-101317 |
| 2025-08-0720:12 ET | 10-Q | Quarterly reportPeriod 2025-06-30 | 0001628280-25-038882 |
| 2025-08-0720:07 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-038866 |
| 2025-07-2410:11 ET | 8-K | 1.01 Entry into a material agreement; 1.02 Termination of a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-25-070186 |
| 2025-07-1716:12 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-25-068601 |
| 2025-06-2023:55 ET | 8-K | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000949157-25-000051 |
| 2025-05-0822:19 ET | 10-Q | Quarterly reportPeriod 2025-03-31 | 0000949157-25-000035 |
| 2025-05-0720:06 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000949157-25-000033 |
| 2025-04-2520:05 ET | DEF 14A | Proxy statementPeriod 2025-06-16 | 0001552781-25-000153 |
| 2025-03-2120:31 ET | 8-K | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-25-026687 |
| 2025-03-0322:23 ET | 10-K | Annual reportPeriod 2024-12-31 | 0000949157-25-000024 |
| 2025-02-2021:08 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000949157-25-000023 |
| 2024-12-1121:05 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001104659-24-127614 |
| 2024-11-0421:08 ET | 10-Q | Quarterly reportPeriod 2024-09-30 | 0000949157-24-000093 |
| 2024-11-0421:05 ET | 8-K | 2.02 Results of operations; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0000949157-24-000092 |
| 2024-08-1222:00 ET | SC 13D/A | Ownership report, active investor, amended | 0001104659-24-088477 |
| 2024-08-0820:15 ET | 10-Q | Quarterly reportPeriod 2024-06-30 | 0000949157-24-000078 |
| 2024-08-0820:06 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000949157-24-000076 |
| 2024-06-0722:04 ET | 8-K | 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000949157-24-000059 |
| 2024-05-0112:02 ET | 10-Q | Quarterly reportPeriod 2024-03-31 | 0000949157-24-000046 |
| 2024-05-0112:00 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000949157-24-000045 |
| 2024-04-1820:26 ET | DEF 14A | Proxy statementPeriod 2024-06-03 | 0000949157-24-000038 |
| 2024-03-2510:51 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000949157-24-000033 |
| 2024-03-1520:04 ET | 10-K | Annual reportPeriod 2023-12-31 | 0000949157-24-000028 |
| 2024-02-2121:07 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000949157-24-000020 |
| 2024-01-0521:25 ET | SC 13D/A | Ownership report, active investor, amended | 0001104659-24-001816 |
| 2023-12-1912:00 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000949157-23-000074 |
| 2023-11-0821:07 ET | 10-Q | Quarterly reportPeriod 2023-09-30 | 0000949157-23-000071 |
| 2023-11-0821:06 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000949157-23-000070 |
| 2023-08-0920:10 ET | 10-Q | Quarterly reportPeriod 2023-06-30 | 0000949157-23-000065 |
| 2023-08-0920:05 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000949157-23-000063 |
| 2023-06-0920:05 ET | 8-K | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000949157-23-000053 |
| 2023-05-0920:06 ET | 10-Q | Quarterly reportPeriod 2023-03-31 | 0000949157-23-000035 |
| 2023-05-0820:12 ET | 8-K | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000949157-23-000032 |
| 2023-05-0520:31 ET | 8-K | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001104659-23-056583 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:01 ET. Listed shows no prices and gives no investment advice.