C3is Inc. — SCHEDULE 13D/A Filings
2 SCHEDULE 13D/A filings on record
This page lists all SCHEDULE 13D/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 2 SCHEDULE 13D/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 13D/A | — | 0001193125-25-237180 | Oct 10, 2025 | — |
| SCHEDULE 13D/A | — | 0001193125-25-226783 | Oct 1, 2025 | — |