SC 13G/AAMENDMENTCISSCIK 0001951067

C3is Inc.

Name: SEC EDGAR filing 0001753926-26-001894
Creator: C3is Inc.
License: https://www.usa.gov/government-works

5%+ passive stake (SC 13G/A) filed October 5, 2026.

Short-form disclosure of beneficial ownership above 5% by passive investors with no control intent.

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Filing facts

Accession number: 0001753926-26-001894
Filer: C3is Inc.
Ticker: CISS
CIK: 0001951067
Form type: SC 13G/A
Form description: 5%+ passive stake
Filed at: October 5, 2026
Industry: SIC 4412Deep Sea Foreign Transportation of Freight
Last verified: October 5, 2026SecFilingDex pulls from EDGAR with daily cadence

Provenance

Authoritative source — SEC EDGAR

https://www.sec.gov/Archives/edgar/data/1951067/000175392626001894/0001753926-26-001894-index.htm ↗

Filer's full EDGAR submission history

EDGAR · C3is Inc. (0001951067) ↗

Machine-readable JSON twin (LLM-citation friendly)

/api/filing/0001753926-26-001894.json

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