C3is Inc. (CISS)

CIK 1951067 · operating company. SEC filings, financial statements, 10-K sections, 8-K items and insider trades for C3is Inc..

Recent SEC filings

FiledFormAccession number
Nov 5, 2026424B30001193125-26-448819
Nov 5, 20266-K0001193125-26-448806
Nov 5, 2026424B30001193125-26-448811
Nov 5, 2026424B30001193125-26-448817
Oct 16, 2026EFFECT9999999995-26-003266
Oct 16, 2026EFFECT9999999995-26-003271
Oct 16, 2026EFFECT9999999995-26-003267
Oct 5, 2026POS AM0001193125-26-414205
Oct 5, 2026POS AM0001193125-26-414232
Oct 5, 2026SCHEDULE 13G/A0001094891-26-000295
Oct 5, 2026SCHEDULE 13G/A0001753926-26-001894
Oct 5, 2026POS AM0001193125-26-414249
Oct 2, 2026SCHEDULE 13G/A0001166573-26-000003
Sep 29, 20266-K0001193125-26-405908
Sep 3, 2026SCHEDULE 13G0001235976-26-000001
Aug 28, 2026SCHEDULE 13D/A0001193125-26-374929
Aug 27, 2026424B30001193125-26-369642
Aug 27, 2026424B30001193125-26-369641
Aug 27, 2026424B30001193125-26-369639
Aug 27, 20266-K0001193125-26-369519
Aug 27, 2026424B30001193125-26-369646
Aug 27, 2026424B30001193125-26-369643
Aug 19, 20266-K0001193125-26-356854
Aug 19, 2026SCHEDULE 13G0001595888-26-000109
Aug 19, 2026424B30001193125-26-357073