CENTURY ALUMINUM CO — All Filings
1,000 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
10-K/A
10-K405
10-Q
11-K
144
15-15D
3
3/A
4
4/A
424B3
424B5
5
8-A12B
8-K
8-K/A
ARS
AW
CORRESP
CT ORDER
DEF 14A
DEFA14A
DEFR14A
EFFECT
FWP
IRANNOTICE
NT 10-K
POS AM
POSASR
PRE 14A
RW
S-1
S-1/A
S-3
S-3/A
S-3ASR
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13D/A
SCHEDULE 13G/A
SD
T-3
T-3/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 144 | — | 0001949846-25-000477 | Sep 15, 2025 | — |
| 4 | FORM 4 | 0001863408-25-000004 | Aug 14, 2025 | Aug 12, 2025 |
| 144 | — | 0001949846-25-000354 | Aug 12, 2025 | — |
| 10-Q | 10-Q | 0001628280-25-038882 | Aug 7, 2025 | Jun 30, 2025 |
| IRANNOTICE | IRANNOTICE | 0001628280-25-038894 | Aug 7, 2025 | — |
| 8-K | 8-K | 0001628280-25-038866 | Aug 7, 2025 | — |
| 8-K | FORM 8-K | 0001104659-25-070186 | Jul 24, 2025 | Jul 22, 2025 |
| 8-K | FORM 8-K | 0001104659-25-068601 | Jul 17, 2025 | Jul 16, 2025 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-065039 | Jul 2, 2025 | Jun 30, 2025 |
| 8-K | 8-K | 0000949157-25-000051 | Jun 20, 2025 | Jun 16, 2025 |
| 4 | FORM 4 | 0000949157-25-000043 | Jun 18, 2025 | Jun 16, 2025 |
| 4 | FORM 4 | 0000949157-25-000045 | Jun 18, 2025 | Jun 16, 2025 |
| 4 | FORM 4 | 0000949157-25-000047 | Jun 18, 2025 | Jun 16, 2025 |
| 4 | FORM 4 | 0000949157-25-000041 | Jun 18, 2025 | Jun 16, 2025 |
| 4 | FORM 4 | 0000949157-25-000039 | Jun 18, 2025 | Jun 16, 2025 |
| S-8 | FORM S-8 | 0001104659-25-059865 | Jun 16, 2025 | — |
| DEFA14A | DEFA14A | 0001104659-25-057845 | Jun 9, 2025 | — |
| IRANNOTICE | IRANNOTICE | 0000949157-25-000037 | May 8, 2025 | — |
| 10-Q | 10-Q | 0000949157-25-000035 | May 8, 2025 | Mar 31, 2025 |
| 8-K | 8-K | 0000949157-25-000033 | May 7, 2025 | — |
| DEFA14A | — | 0001552781-25-000154 | Apr 25, 2025 | — |
| DEF 14A | — | 0001552781-25-000153 | Apr 25, 2025 | Jun 16, 2025 |
| SCHEDULE 13G/A | — | 0001576419-25-000714 | Apr 17, 2025 | — |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-030252 | Apr 1, 2025 | Mar 31, 2025 |
| 4 | FORM 4 | 0000949157-25-000032 | Mar 25, 2025 | Mar 21, 2025 |
| 4 | FORM 4 | 0000949157-25-000030 | Mar 24, 2025 | Mar 20, 2025 |
| 8-K | FORM 8-K | 0001104659-25-026687 | Mar 21, 2025 | — |
| 4 | FORM 4 | 0000949157-25-000028 | Mar 18, 2025 | Mar 14, 2025 |
| 144 | — | 0001949846-25-000139 | Mar 17, 2025 | — |
| IRANNOTICE | IRANNOTICE | 0000949157-25-000026 | Mar 4, 2025 | — |
| 10-K | 10-K | 0000949157-25-000024 | Mar 3, 2025 | Dec 31, 2024 |
| 8-K | 8-K | 0000949157-25-000023 | Feb 20, 2025 | — |
| 4 | FORM 4 | 0000949157-25-000022 | Feb 10, 2025 | Feb 7, 2025 |
| 4 | FORM 4 | 0000949157-25-000020 | Jan 29, 2025 | Jan 28, 2025 |
| 4 | FORM 4 | 0000949157-25-000010 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | OWNERSHIP DOCUMENT | 0001104659-25-000640 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | FORM 4 | 0000949157-25-000014 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | FORM 4 | 0000949157-25-000004 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | FORM 4 | 0000949157-25-000006 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | FORM 4 | 0000949157-25-000008 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | FORM 4 | 0000949157-25-000016 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | FORM 4 | 0000949157-25-000012 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | FORM 4 | 0000949157-25-000018 | Jan 3, 2025 | Dec 31, 2024 |
| 4 | FORM 4 | 0000949157-25-000002 | Jan 3, 2025 | Jan 1, 2025 |
| 4 | FORM 4 | 0000949157-24-000100 | Dec 30, 2024 | Dec 26, 2024 |
| 3 | FORM 3 | 0000949157-24-000098 | Dec 26, 2024 | Dec 10, 2024 |
| 144 | — | 0001968582-24-001224 | Dec 26, 2024 | — |
| 8-K | FORM 8-K | 0001104659-24-127614 | Dec 11, 2024 | Dec 5, 2024 |
| 4 | FORM 4 | 0000949157-24-000096 | Dec 9, 2024 | Dec 5, 2024 |
| 144 | — | 0001949846-24-000784 | Dec 5, 2024 | — |