C3is Inc. - CISS
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 16
Latest filed: Feb 27, 2026
| Form | Count |
|---|---|
| 6-K | 6 |
| SCHEDULE 13G | 5 |
| SCHEDULE 13D/A | 3 |
| SCHEDULE 13G/A | 2 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Feb 27, 2026 | SCHEDULE 13G | — | 0001896206-26-000004 | View |
| Feb 25, 2026 | 6-K | Feb 25, 2026 | 0001193125-26-071797 | View |
| Feb 19, 2026 | 6-K | Feb 19, 2026 | 0001193125-26-058269 | View |
| Feb 11, 2026 | SCHEDULE 13G | — | 0001493152-26-006140 | View |
| Feb 04, 2026 | SCHEDULE 13D/A | — | 0001193125-26-037796 | View |
| Jan 26, 2026 | 6-K | Jan 26, 2026 | 0001193125-26-022543 | View |
| Jan 22, 2026 | 6-K | Jan 22, 2026 | 0001193125-26-018737 | View |
| Jan 20, 2026 | 6-K | Jan 20, 2026 | 0001193125-26-016737 | View |
| Jan 14, 2026 | SCHEDULE 13G/A | — | 0001909404-26-000006 | View |
| Jan 13, 2026 | SCHEDULE 13G/A | — | 0000898432-26-000030 | View |
| Jan 08, 2026 | SCHEDULE 13G | — | 0001909404-26-000002 | View |
| Dec 30, 2025 | SCHEDULE 13D/A | — | 0001193125-25-337230 | View |
| Dec 19, 2025 | 6-K | Dec 19, 2025 | 0001193125-25-326806 | View |
| Dec 18, 2025 | SCHEDULE 13G | — | 0001079973-25-001874 | View |
| Dec 17, 2025 | SCHEDULE 13G | — | 0001079973-25-001866 | View |
| Dec 15, 2025 | SCHEDULE 13D/A | — | 0001193125-25-318341 | View |