Stocks Consumer discretionary CISS
NASDAQ · Consumer discretionaryC3is Inc. (CISS)
C3is Inc. reported revenue of $34.8M in fiscal 2025, down 17.8% from a year earlier. Net income was $10.5M, a net margin of 30.1%. Operating cash flow minus capital spending left $3.8M of free cash flow in fiscal 2025. At December 31, 2025 it held $616.6K in cash.
What C3is Inc. does
C3is Inc. is registered with the SEC under industry code SIC 4412 (Deep Sea Foreign Transportation of Freight). Its shares trade on NASDAQ under the ticker CISS.
Revenue and profit by year
Key figures
| Fiscal year | Revenue | Net income | Diluted EPS | Free cash flow |
|---|---|---|---|---|
| 2025 | $34.8M | $10.5M | $3.98 | $3.8M |
| 2024 | $42.3M | -$2.7M | -$351.58 | $23.4M |
| 2023 | $28.7M | $9.3M | $18,911.99 | $1.3M |
Full financial statements: income, balance sheet and cash flow
Where CISS ranks in Consumer discretionary
Latest SEC filings
What C3is Inc. has filed recently, newest first. Each links to the original document on SEC EDGAR.
- September 3, 2026Passive stake (5% or more) SCHEDULE 13G
- August 27, 2026
- August 27, 2026
- August 27, 2026
- August 27, 2026
- August 27, 2026
- August 27, 2026
- August 19, 2026
- August 19, 2026
- August 19, 2026
Who owns CISS
Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.
5% holders
| Holder | Of class | Filed |
|---|---|---|
| Ascent Partners Fund LLC13G, passive with 8 related filers | 9.99% | August 4, 2026 |
| Lind Global Fund III LP13G, passive with 2 related filers | 9.99% | July 31, 2026 |
| CVI Investments, Inc.13G, passive with 1 related filers | 9.9% | August 3, 2026 |
| Horne Timothy P13G, passive | 9.1% | September 3, 2026 |
| Alta Partners LLC13G, passive | 8.2% | August 3, 2026 |
| Jane Street Group, LLC13G, passive with 2 related filers | 7.2% | August 19, 2026 |
| Towerview LLC13G, passive | 6.5% | May 18, 2026 |
Largest institutional holders
Insiders
Questions about CISS
What does C3is Inc. do?
C3is Inc. is registered with the SEC under industry code SIC 4412 (Deep Sea Foreign Transportation of Freight). Its shares trade on NASDAQ under the ticker CISS.
Is C3is Inc. profitable?
Yes. In fiscal 2025 it reported net income of $10.5M on revenue of $34.8M, a net margin of 30.1%.
How much revenue does C3is Inc. make?
In fiscal 2025 C3is Inc. reported revenue of $34.8M. That is 17.8% less than a year earlier.
When did C3is Inc. last report?
Its newest filing of any kind is the passive stake (5% or more) from September 3, 2026.
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Follow CISS: get an email when it filesWhere the numbers come from
Financial figures are the values C3is Inc. tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.
Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.