C3is Inc.

CISS·NASDAQ·$2.36Share Price as of 11/2·$416,372Market Cap as of 11/2

Financials

20-FAnnual report (foreign)04/22/26 20-FAnnual report (foreign)04/28/25 20-FAnnual report (foreign)04/30/24

Disclosures

6-KForeign issuer report09/29/26 6-KForeign issuer report08/27/26 6-KForeign issuer report08/19/26 6-KForeign issuer report08/17/26 6-KForeign issuer report07/28/26

Prospectuses and Registrations

POS AMPost-effective amendment10/05/26 POS AMPost-effective amendment10/05/26 POS AMPost-effective amendment10/05/26 424B3Prospectus08/27/26 424B3Prospectus08/27/26

Proxies

No matching filings.

Ownership

SC 13G/ABeneficial ownership (amended)10/05/26 SC 13G/ABeneficial ownership (amended)10/05/26 SC 13G/ABeneficial ownership (amended)10/02/26 SC 13GBeneficial ownership09/03/26 SC 13GBeneficial ownership08/19/26

Other

EFFECTRequest for effectiveness10/16/26 EFFECTRequest for effectiveness10/16/26 EFFECTRequest for effectiveness10/16/26 EFFECTRequest for effectiveness07/27/26 DRSDRS07/10/26