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Stocks/CISS/SEC Filings/6-K Nov 9, 2026

CISS 6-K: Stock split

Filed with the SEC on Nov 9, 2026 · accession 0001193125-26-452731

CISS filed a 6-K (foreign company report) with the SEC on Nov 9, 2026. How foreign companies listed in the US report news and events — like an 8-K for them.

Summary of the filing

C3is Inc. effected a one-for-5 reverse stock split effective November 8, 2026, reducing outstanding shares from approximately 4.2 million to 0.84 million, with trading on a split-adjusted basis beginning November 9, 2026 on Nasdaq.

For details, click here →How to read a 6-K →

Key details

pre-split outstanding shares$4.2M
post-split outstanding shares$840K
RegistrantC3is Inc.
ExchangeNasdaq Capital Market
Chief financial officerNina Pyndiah

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Frequently asked questions

What did CISS file with the SEC on Nov 9, 2026?

CISS filed a 6-K (Stock split). C3is Inc. effected a one-for-5 reverse stock split effective November 8, 2026, reducing outstanding shares from approximately 4.2 million to 0.84 million, with trading on a split-adjusted basis beginning November 9, 2026 on Nasdaq.

What does a stock split mean for CISS stock?

Usually: fewer shares means each remaining share owns more of the company. It matters whether the company actually buys and at what price.

How do I read a 6-K?

How foreign companies listed in the US report news and events — like an 8-K for them. Look at the exhibit names: "results", "resign", "notice" tell you the topic. Many 6-Ks are routine (meeting notices); results and leadership changes matter most.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 6-K (foreign company report): How foreign companies listed in the US report news and events — like an 8-K for them.

Other CISS SEC filings

  • 424B3 · Stock splitNov 9, 2026
  • 424B3 · Stock splitNov 9, 2026
  • 424B3 · Stock splitNov 9, 2026
  • SCHEDULE 13G/A · SEC filingNov 6, 2026
  • 424B3 · Stock splitNov 5, 2026
  • 424B3 · Stock splitNov 5, 2026
  • 424B3 · Stock splitNov 5, 2026
  • 6-K · Stock splitNov 5, 2026
  • EFFECT · Shelf registrationOct 16, 2026
  • EFFECT · Shelf registrationOct 16, 2026

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Source: SEC EDGAR filing 0001193125-26-452731. The summary and key details are extracted by SEPT from the filing and may contain errors. Price reaction uses daily closing prices. Not financial advice.