C3is Inc. SEC filings CISS
C3is Inc. has 320 filings in SEC EDGAR's recent list, going back to Dec 7, 2022. Its latest annual report, Form 20-F, was filed on Apr 22, 2026 for the period ended Dec 31, 2025. The most recent current report (Form 6-K) was filed on Nov 5, 2026. The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 6-K | Current report (foreign issuer) | Nov 5, 2026 | Nov 5, 2026 |
| 6-K | Current report (foreign issuer) | Sep 29, 2026 | Jun 30, 2026 |
| 6-K | Current report (foreign issuer) | Aug 27, 2026 | Aug 27, 2026 |
| 6-K | Current report (foreign issuer) | Aug 19, 2026 | Aug 19, 2026 |
| 6-K | Current report (foreign issuer) | Aug 17, 2026 | Aug 17, 2026 |
| 6-K | Current report (foreign issuer) | Jul 28, 2026 | Jul 28, 2026 |
| 6-K | Current report (foreign issuer) | Jul 27, 2026 | Jul 27, 2026 |
| 6-K | Current report (foreign issuer) | Jul 22, 2026 | Jul 22, 2026 |
| 6-K | Current report (foreign issuer) | Jun 22, 2026 | Jun 22, 2026 |
| 6-K | Current report (foreign issuer) | May 18, 2026 | May 18, 2026 |
| 6-K | Current report (foreign issuer) | Apr 27, 2026 | Apr 27, 2026 |
| 6-K | Current report (foreign issuer) | Apr 23, 2026 | Apr 23, 2026 |
| 6-K | Current report (foreign issuer) | Feb 25, 2026 | Feb 25, 2026 |
| 6-K | Current report (foreign issuer) | Feb 19, 2026 | Feb 19, 2026 |
| 6-K | Current report (foreign issuer) | Jan 26, 2026 | Jan 26, 2026 |
| 6-K | Current report (foreign issuer) | Jan 22, 2026 | Jan 22, 2026 |
| 6-K | Current report (foreign issuer) | Jan 20, 2026 | Jan 20, 2026 |
| 6-K | Current report (foreign issuer) | Dec 19, 2025 | Dec 19, 2025 |
| 6-K | Current report (foreign issuer) | Dec 12, 2025 | Dec 12, 2025 |
| 6-K | Current report (foreign issuer) | Nov 18, 2025 | Nov 18, 2025 |
| 6-K | Current report (foreign issuer) | Oct 9, 2025 | Oct 9, 2025 |
| 6-K | Current report (foreign issuer) | Sep 29, 2025 | Jun 30, 2025 |
| 6-K | Current report (foreign issuer) | Sep 2, 2025 | Sep 2, 2025 |
| 6-K | Current report (foreign issuer) | Aug 29, 2025 | Aug 29, 2025 |
| 6-K | Current report (foreign issuer) | Jun 25, 2025 | Jun 25, 2025 |
| 6-K | Current report (foreign issuer) | May 16, 2025 | May 16, 2025 |
| 6-K | Current report (foreign issuer) | Apr 4, 2025 | Apr 4, 2025 |
| 6-K | Current report (foreign issuer) | Apr 2, 2025 | Apr 2, 2025 |
| 6-K | Current report (foreign issuer) | Mar 12, 2025 | Mar 12, 2025 |
| 6-K | Current report (foreign issuer) | Feb 21, 2025 | Feb 21, 2025 |
| 6-K | Current report (foreign issuer) | Feb 18, 2025 | Feb 18, 2025 |
| 6-K | Current report (foreign issuer) | Jan 2, 2025 | Jan 2, 2025 |
| 6-K | Current report (foreign issuer) | Nov 19, 2024 | Nov 19, 2024 |
| 6-K | Current report (foreign issuer) | Sep 30, 2024 | Jun 30, 2024 |
| 6-K | Current report (foreign issuer) | Aug 30, 2024 | Aug 30, 2024 |
| 6-K | Current report (foreign issuer) | Aug 23, 2024 | Aug 23, 2024 |
| 6-K | Current report (foreign issuer) | May 28, 2024 | May 28, 2024 |
| 6-K | Current report (foreign issuer) | Apr 12, 2024 | Apr 12, 2024 |
| 6-K | Current report (foreign issuer) | Apr 12, 2024 | Apr 12, 2024 |
| 6-K | Current report (foreign issuer) | Mar 26, 2024 | Mar 26, 2024 |
| 6-K | Current report (foreign issuer) | Mar 19, 2024 | Mar 19, 2024 |
| 6-K | Current report (foreign issuer) | Mar 15, 2024 | Mar 15, 2024 |
| 6-K | Current report (foreign issuer) | Feb 22, 2024 | Feb 22, 2024 |
| 6-K | Current report (foreign issuer) | Jan 23, 2024 | Jan 23, 2024 |
| 6-K | Current report (foreign issuer) | Nov 6, 2023 | Nov 6, 2023 |
| 6-K | Current report (foreign issuer) | Sep 29, 2023 | Sep 29, 2023 |
| 6-K | Current report (foreign issuer) | Sep 8, 2023 | Sep 8, 2023 |
| 6-K | Current report (foreign issuer) | Aug 25, 2023 | Aug 25, 2023 |
| 6-K | Current report (foreign issuer) | Jul 17, 2023 | Jul 17, 2023 |
| 6-K | Current report (foreign issuer) | Jul 5, 2023 | Jul 5, 2023 |
| 6-K | Current report (foreign issuer) | Jun 23, 2023 | Jun 23, 2023 |
Showing 51 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Deep Sea Foreign Transportation of Freight (SIC 4412)
- Listed as
- CISS (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- Marshall Islands
- Headquarters
- Athens, Greece
- SEC filer status
- Non-accelerated filer, Emerging growth company
- SEC CIK
- 1951067
Other Deep Sea Foreign Transportation of Freight companies
- Frontline plc FRO
- Cmb.tech NV CMBT
- Scorpio Tankers Inc. STNG
- TORM plc TRMD
- DHT Holdings, Inc. DHT
- Okeanis Eco Tankers Corp. ECO
- ZIM Integrated Shipping Services Ltd. ZIM
- Star Bulk Carriers Corp. SBLK
Source: SEC EDGAR filings. This is company-reported data, not investment advice.