C3is Inc. — 424B3 Filings
74 424B3 filings on record
This page lists all 424B3 filings submitted to the SEC by C3is Inc. (CISS), sorted by most recent first. Each row links to the full filing on EdgarLookup. C3is Inc. has filed 74 424B3 documents with the SEC since 2022. To view all SEC filings by C3is Inc., see the full filings list.
All
20-F
3
424B1
424B3
424B4
424B5
6-K
8-A12B
CERT
CORRESP
DRS
DRS/A
DRSLTR
EFFECT
F-1
F-1/A
F-1MEF
F-3
POS AM
S-8
SC 13D
SC 13D/A
SC 13G
SCHEDULE 13D/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 424B3 | 424B3 | 0001193125-26-071850 | Feb 25, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-071841 | Feb 25, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-071827 | Feb 25, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-071812 | Feb 25, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-058279 | Feb 19, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-058278 | Feb 19, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-058276 | Feb 19, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-058273 | Feb 19, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-022556 | Jan 26, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-022555 | Jan 26, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-022552 | Jan 26, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-022549 | Jan 26, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-018753 | Jan 22, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-018750 | Jan 22, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-018748 | Jan 22, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-018744 | Jan 22, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-016761 | Jan 20, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-016758 | Jan 20, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-016756 | Jan 20, 2026 | — |
| 424B3 | 424B3 | 0001193125-26-016749 | Jan 20, 2026 | — |
| 424B3 | 424B3 | 0001193125-25-327072 | Dec 19, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-327054 | Dec 19, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-327050 | Dec 19, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-327043 | Dec 19, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-193999 | Sep 2, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-193996 | Sep 2, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-193992 | Sep 2, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-121689 | May 16, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-121688 | May 16, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-121685 | May 16, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-073420 | Apr 4, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-073418 | Apr 4, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-073413 | Apr 4, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-070986 | Apr 2, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-070977 | Apr 2, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-070974 | Apr 2, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-052583 | Mar 12, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-052580 | Mar 12, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-052575 | Mar 12, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-000648 | Jan 2, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-000645 | Jan 2, 2025 | — |
| 424B3 | 424B3 | 0001193125-25-000644 | Jan 2, 2025 | — |
| 424B3 | 424B3 | 0001193125-24-261779 | Nov 19, 2024 | — |
| 424B3 | 424B3 | 0001193125-24-261773 | Nov 19, 2024 | — |
| 424B3 | 424B3 | 0001193125-24-261767 | Nov 19, 2024 | — |
| 424B3 | 424B3 | 0001193125-24-228516 | Sep 30, 2024 | — |
| 424B3 | 424B3 | 0001193125-24-228514 | Sep 30, 2024 | — |
| 424B3 | 424B3 | 0001193125-24-228510 | Sep 30, 2024 | — |
| 424B3 | 424B3 | 0001193125-24-148137 | May 28, 2024 | — |
| 424B3 | 424B3 | 0001193125-24-148133 | May 28, 2024 | — |