C3is Inc. — SCHEDULE 13G/A Filings
6 SCHEDULE 13G/A filings on record
This page lists all SCHEDULE 13G/A 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 6 SCHEDULE 13G/A 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 |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0001909404-26-000006 | Jan 14, 2026 | — |
| SCHEDULE 13G/A | — | 0000898432-26-000030 | Jan 13, 2026 | — |
| SCHEDULE 13G/A | — | 0001079973-25-001730 | Nov 14, 2025 | — |
| SCHEDULE 13G/A | — | 0001193125-25-227569 | Oct 2, 2025 | — |
| SCHEDULE 13G/A | — | 0001048462-25-000027 | Sep 29, 2025 | — |
| SCHEDULE 13G/A | — | 0001079973-25-000255 | Feb 14, 2025 | — |