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C3is Inc. — EFFECT Filings

19 EFFECT filings on record

This page lists all EFFECT 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 19 EFFECT documents with the SEC since 2022. To view all SEC filings by C3is Inc., see the full filings list.

Overview All Filings Financials Insiders
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
EFFECT 9999999995-25-003823 Dec 18, 2025
EFFECT 9999999995-25-003822 Dec 18, 2025
EFFECT 9999999995-25-003820 Dec 18, 2025
EFFECT 9999999995-25-003623 Dec 10, 2025
EFFECT 9999999995-25-003342 Nov 21, 2025
EFFECT 9999999995-25-001412 May 5, 2025
EFFECT 9999999995-25-001411 May 5, 2025
EFFECT 9999999995-25-001407 May 5, 2025
EFFECT 9999999995-25-000597 Mar 6, 2025
EFFECT 9999999995-24-003773 Dec 13, 2024
EFFECT 9999999995-24-003774 Dec 13, 2024
EFFECT 9999999995-24-003770 Dec 13, 2024
EFFECT 9999999995-24-001413 May 8, 2024
EFFECT 9999999995-24-001416 May 8, 2024
EFFECT 9999999995-24-001417 May 8, 2024
EFFECT 9999999995-24-000665 Mar 14, 2024
EFFECT 9999999995-24-000150 Jan 18, 2024
EFFECT 9999999995-23-001963 Jun 30, 2023
EFFECT 9999999995-23-001722 Jun 12, 2023