{"filing":{"accession_number":"0001193125-26-356854","cik":"0001951067","ticker":"CISS","company_name":"C3is Inc.","form":"6-K","filing_date":"2026-08-19","report_date":"2026-08-19","primary_document":"d70076d6k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1951067/000119312526356854/d70076d6k.htm"},"events":[{"id":28479,"run_id":26053,"accession_number":"0001193125-26-356854","anchor_item_number":null,"event_type":"governance_other","event_domain":"governance","is_material":true,"confidence":0.85,"summary":"The 6-K discloses a one-for-40 reverse stock split of C3is Inc.'s common stock, effective August 18, 2026, reducing outstanding shares from approximately 57.6 million to 1.44 million. While a reverse split is a governance/capital structure action rather than a discrete operational or financial event, it is material to investors as it fundamentally alters share count, exercise prices of warrants, and conversion prices of preferred stock, and affects trading on Nasdaq. This is a governance action that does not fit the specific named categories (exec appointment/departure, compensation, shareholder vote results, etc.) but clearly falls within governance domain.","company_name":"C3is Inc.","ticker":"CISS","filing_date":"2026-08-19","form":"6-K","submitted_at":null,"items":null}],"classifications":[{"id":30433,"accession_number":"0001193125-26-356854","item_number":null,"item_title":null,"event_type":"governance_other","event_domain":"governance","is_material":true,"confidence":0.85,"reasoning":"The 6-K discloses a one-for-40 reverse stock split of C3is Inc.'s common stock, effective August 18, 2026, reducing outstanding shares from approximately 57.6 million to 1.44 million. While a reverse split is a governance/capital structure action rather than a discrete operational or financial event, it is material to investors as it fundamentally alters share count, exercise prices of warrants, and conversion prices of preferred stock, and affects trading on Nasdaq. This is a governance action that does not fit the specific named categories (exec appointment/departure, compensation, shareholder vote results, etc.) but clearly falls within governance domain.","classifier_version":"claude-haiku-4-5-20251001+prompt-6be895f9","taxonomy_version":"v1.3","classified_at":"2026-08-19T20:03:01.428083+00:00","company_name":"C3is Inc.","ticker":"CISS","filing_date":"2026-08-19"}]}