C3is Inc. (CISS) SEC Filings & Financial Intelligence
C3is Inc. (CISS) is a publicly traded company on the Nasdaq, categorized under SIC 4412 (Deep Sea Foreign Transportation of Freight). Access real-time SEC filings, 10-K annual reports, 10-Q quarterlies, 8-K current reports, PCAOB auditor history, and executive compensation disclosures.
Ticker: CISS
CIK: 1951067
Exchange: Nasdaq
SIC 4412: Deep Sea Foreign Transportation of Freight
Fiscal Year End: 12/31
State: 1T
Independent PCAOB Auditor
Explore PCAOB Audit Intelligence →
Audit Firm
DELOITTE CERTIFIED PUBLIC ACCOUNTANTS S.A.
Auditor SinceSince 12/31/2022 12:00:00 AM
Lead Engagement PartnerEleni - Analia Kokkori
Audit LocationAthens, Greece
Latest SEC EDGAR Filings
Showing 10-K, 10-Q, 8-K, Form 4, and other SEC submissions| Form | Filing Date | Reporting Period | Description | Accession Number | Actions |
|---|---|---|---|---|---|
| POS AM | 2026-10-05 | — | POS AM | 0001193125-26-414249 | View SEC Doc Filr Page |
| POS AM | 2026-10-05 | — | POS AM | 0001193125-26-414232 | View SEC Doc Filr Page |
| POS AM | 2026-10-05 | — | POS AM | 0001193125-26-414205 | View SEC Doc Filr Page |
| SCHEDULE 13G/A | 2026-10-05 | — | SCHEDULE 13G/A Filing | 0001094891-26-000295 | View SEC Doc Filr Page |
| SCHEDULE 13G/A | 2026-10-05 | — | SCHEDULE 13G/A Filing | 0001753926-26-001894 | View SEC Doc Filr Page |
| SCHEDULE 13G/A | 2026-10-02 | — | SCHEDULE 13G/A Filing | 0001166573-26-000003 | View SEC Doc Filr Page |
| 6-K | 2026-09-29 | 2026-06-30 | 6-K | 0001193125-26-405908 | View SEC Doc Filr Page |
| SCHEDULE 13G | 2026-09-03 | — | SCHEDULE 13G Filing | 0001235976-26-000001 | View SEC Doc Filr Page |
| SCHEDULE 13D/A | 2026-08-28 | — | SCHEDULE 13D/A Filing | 0001193125-26-374929 | View SEC Doc Filr Page |
| 424B3 | 2026-08-27 | — | 424B3 | 0001193125-26-369646 | View SEC Doc Filr Page |
| 424B3 | 2026-08-27 | — | 424B3 | 0001193125-26-369643 | View SEC Doc Filr Page |
| 424B3 | 2026-08-27 | — | 424B3 | 0001193125-26-369642 | View SEC Doc Filr Page |
| 424B3 | 2026-08-27 | — | 424B3 | 0001193125-26-369641 | View SEC Doc Filr Page |
| 424B3 | 2026-08-27 | — | 424B3 | 0001193125-26-369639 | View SEC Doc Filr Page |
| 6-K | 2026-08-27 | 2026-08-27 | 6-K | 0001193125-26-369519 | View SEC Doc Filr Page |
| 424B3 | 2026-08-19 | — | 424B3 | 0001193125-26-357115 | View SEC Doc Filr Page |
| 424B3 | 2026-08-19 | — | 424B3 | 0001193125-26-357102 | View SEC Doc Filr Page |
| 424B3 | 2026-08-19 | — | 424B3 | 0001193125-26-357093 | View SEC Doc Filr Page |
| 424B3 | 2026-08-19 | — | 424B3 | 0001193125-26-357080 | View SEC Doc Filr Page |
| 424B3 | 2026-08-19 | — | 424B3 | 0001193125-26-357073 | View SEC Doc Filr Page |
| SCHEDULE 13G | 2026-08-19 | — | SCHEDULE 13G Filing | 0001595888-26-000109 | View SEC Doc Filr Page |
| 6-K | 2026-08-19 | 2026-08-19 | 6-K | 0001193125-26-356854 | View SEC Doc Filr Page |
| 6-K | 2026-08-17 | 2026-08-17 | 6-K | 0001193125-26-354028 | View SEC Doc Filr Page |
| SCHEDULE 13G/A | 2026-08-14 | — | SCHEDULE 13G/A Filing | 0001079973-26-001123 | View SEC Doc Filr Page |
| SCHEDULE 13G/A | 2026-08-14 | — | SCHEDULE 13G/A Filing | 0001079973-26-001098 | View SEC Doc Filr Page |