Sign in

CISS on Nasdaq

C3is Inc.

Deep Sea Foreign Transportation of Freight company, listed on Nasdaq (CISS)1

In its 2026 annual report (Form 20-F) the company says: “We are a provider of international seaborne transportation services to drybulk charterers, including major national and private industrial users, commodity producers and traders, and oil producers, refineries and commodities traders and producers.”4

Price unavailable

Last updated Oct 21, 2026.

Overview

$34.8MRevenue, fiscal 20252
$10.5MNet income, fiscal 20252

Compare with Castor Maritime, Pyxis Tankers Inc. or GLOBUS MARITIME LTD, or pick any stock.

  • TickerCISS on Nasdaq1
  • IndustryDeep Sea Foreign Transportation of Freight1
  • Headquarters1T1
  • Incorporated inMarshall Islands3
  • Business address331 Kifissias Avenue, Erithrea, Athens, J3 145613
  • Filer categoryNon-accelerated filer, Emerging growth company3

See how the biggest companies compare on our leaderboards

We were incorporated under the laws of the Republic of the Marshall Islands on July 25, 2022 to serve as the holding company of two subsidiaries each owning one of the drybulk carriers in our initial fleet that, Imperial Petroleum subsequently contributed to us in connection with the Spin-Off (as defined below). Imperial Petroleum contributed these subsidiaries to the Company and $5,000,000 in cash for working capital in return for our Common Shares and Series A Convertible Preferred Stock. On June 21, 2023, Imperial Petroleum distributed all of our outstanding shares of common stock, par value $0.01 per share (“Common Shares”), to its stockholders and warrant holders, which completed our separation from Imperial Petroleum (the “Spin Off”). Upon the completion of the Spin-Off on June 21, 2023, we began operating as a separate company from Imperial Petroleum, the Nasdaq-listed ship-owning…4 From its latest annual report

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

3.9%Operating margin2
30.1%Net margin2
-17.8%Revenue growth, 20252
11.0%Return on equity2
$3.8MFree cash flow2

What sells

Revenue by product, business segment and region, as the company reports it to the SEC.

Products and services

Time Charter Revenues brought in 82% of the revenue C3is Inc. broke down this way in fiscal 2025.

  1. Time Charter Revenues$11.1M282%up 1% from 2024
  2. Voyage Charter Revenues$1.5M211%down 61% from 2024
  3. Other Operating Income$902.9K27%down 46% from 2024
Products and services by year
Products and services202320242025
Time Charter Revenues$9.7M$11.0M$11.1M
Voyage Charter Revenues$2.2M$4.0M$1.5M
Other Operating Income$1.5M$1.7M$902.9K

Where the money goes

Where each dollar of revenue went, fiscal 2025

  • Other costs70¢$24.3M
  • Profit30¢$10.5M

Out of $34.8M in revenue.2

Where each dollar of operating cash went, fiscal 2025

  • Capital spending4¢$161.9K
  • Kept or used elsewhere96¢$3.8M

Out of $4.0M of cash from operations.2

Financial statements

Revenue2$34.8M in 2025+21% since 2023
0$20.0M$40.0M$60.0M2023: $28.7M$28.7M20232024: $42.3M$42.3M2024+47%2025: $34.8M$34.8M2025−18%
Operating income2$1.4M in 2025−87% since 2023
0$5.0M$10.0M$15.0M2023: $10.4M$10.4M20232024: $10.1M$10.1M2024−4%2025: $1.4M$1.4M2025−86%
Net income2$10.5M in 2025+13% since 2023
-$5.0M0$5.0M$10.0M$15.0M2023: $9.3M$9.3M20232024: -$2.7M-$2.7M20242025: $10.5M$10.5M2025

Every line of the income statement as filed: the last 3 fiscal years, latest first.2

Period ending2025-12-312024-12-312023-12-31
Revenues$34.8M$42.3M$28.7M
Total revenues$34.8M$42.3M$28.7M
Voyage expenses$12.3M$13.6M$7.3M
Voyage expenses related parties$434.9K$522.6K$340.3K
Vessel operating expenses$9.0M$8.2M$4.7M
Vessel operating expenses related parties$133.5K$134.7K$79.2K
Dry-docking costs$1.9M$0$183.1K
Depreciation$6.5M$6.2M$4.1M
Management fees related parties$642.4K$587.0K$396.0K
General and administrative expenses$1.9M$2.5M$679.2K
General and administrative expenses related parties$545.2K$479.3K$520.9K
Total expenses$33.4M$32.2M$18.3M
Income from operations$1.4M$10.1M$10.4M
Interest and finance costs-$8.4K-$13.1K-$4.5K
Interest and finance costs related party-$365.9K-$2.5M-$1.4M
Interest income$327.8K$950.8K$36.1K
Foreign exchange gain/(loss)-$63.7K-$160.3K$195.7K
(Loss)/gain on warrants$9.2M-$11.1M$0
Other (expenses)/income, net$9.1M-$12.8M-$1.1M
Net income/(loss)$10.5M-$2.7M$9.3M
-Basic$46.50-$351.58$47,133.25
-Diluted$3.98-$351.58$18,911.99
-Basic90.0K shares23.0K shares181 shares
-Diluted350.1K shares23.0K shares487 shares

Compare C3is Inc. with another company

Corporate structure

C3is Inc. sits at the top of its group. 1 entity on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of C3is Inc.

  • C3is Inc. 1T

Built from major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What C3is Inc. reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

ItemLatestA year beforeChange
Property and equipment, before depreciation$95.0M2 Dec 31, 2025$95.0M2 Dec 31, 20240%
Accumulated depreciation$17.3M2 Dec 31, 2025$10.8M2 Dec 31, 2024+60.0%
Property and equipment, net$77.6M2 Dec 31, 2025$84.1M2 Dec 31, 2024−7.7%

Investments

ItemLatestA year beforeChange
Cash and cash equivalents$616.6K2 Dec 31, 2025$4.6M2 Dec 31, 2024−86.7%

Inventory

ItemLatestA year beforeChange
Inventory, total$1.3M2 Dec 31, 2025$884.1K2 Dec 31, 2024+48.4%

Leadership

Who has led C3is Inc., and when. Pick a name to see everywhere that person has worked.

Chief executive

  1. Adamantios Andriotis2026–now

President

  1. Adamantios Andriotis2026–now

Chief financial officer

  1. Nina Sarojini Pyndiah2026–now
Board members and other officers (4)

Timeline

  1. Mar 18, 2026New chief executive Adamantios Andriotis becomes CEO7

Calendar

Coming up

  1. Nov 17, 2026Reports results for the quarter ending Sep/202612

Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar

Filings

313 filings to the SEC since October 2021: 3 annual reports, 5 insider forms, 52 large holders, 253 other. The latest 20:

  1. Oct 5, 2026SCHEDULE 13G/A EDGAR
  2. Oct 5, 2026POS AM EDGAR
  3. Oct 5, 2026POS AM EDGAR
  4. Oct 5, 2026POS AM EDGAR
  5. Oct 5, 2026SCHEDULE 13G/A EDGAR
  6. Oct 2, 2026SCHEDULE 13G/A EDGAR
  7. Sep 29, 20266-K EDGAR
  8. Sep 3, 2026SCHEDULE 13G EDGAR
  9. Aug 28, 2026SCHEDULE 13D/A EDGAR
  10. Aug 27, 2026424B3 EDGAR
  11. Aug 27, 2026424B3 EDGAR
  12. Aug 27, 2026424B3 EDGAR
  13. Aug 27, 2026424B3 EDGAR
  14. Aug 27, 2026424B3 EDGAR
  15. Aug 27, 20266-K EDGAR
  16. Aug 19, 2026SCHEDULE 13G EDGAR
  17. Aug 19, 2026424B3 EDGAR
  18. Aug 19, 2026424B3 EDGAR
  19. Aug 19, 2026424B3 EDGAR
  20. Aug 19, 2026424B3 EDGAR

The 313 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

SEC filer profile

How C3is Inc. is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

  • Name on EDGARC3is Inc.1
  • CIK0001951067
  • Filer statusNon-accelerated filer an emerging growth company; not a shell company4
  • Incorporated inRepublic of the Marshall Islands4
  • Fiscal year endsDecember 311
  • Industry code (SIC)4412 Deep Sea Foreign Transportation of Freight1
  • SEC reviewing officeOffice of Energy & Transportation, Division of Corporation Finance1
  • Business address331 Kifissias Avenue, Erithrea, Athens, J3 145611
  • Phone011-30-210-625-00011
  • Shares outstanding659,668 Common Stock shares; 600,000 Series A Convertible Preferred Stock shares as of Dec 31, 20254
  • AuditorDeloitte Certified Public Accountants S.A., Athens, Greece PCAOB ID 1163; no auditor attestation of internal control over financial reporting4
  • On EDGAR sinceDec 7, 20221
  • Filings313 in all: 424B3 (94), 6-K (50), EFFECT (24), POS AM (22), CORRESP (20), SCHEDULE 13G (13), SCHEDULE 13G/A (13), SCHEDULE 13D/A (12)1
    All 27 form types

    UPLOAD (10), F-1 (6), F-1/A (6), SC 13D/A (6), 3 (5), 424B4 (5), DRS (5), SC 13G (5), 20-F (3), SC 13D (3), 424B5 (2), DRSLTR (2), 424B1 (1), 8-A12B (1), CERT (1), DRS/A (1), F-1MEF (1), F-3 (1), S-8 (1)

  • Latest filingsAnnual report (20-F) Apr 22, 2026

Securities registered for trading

ClassSymbolExchange
Common Stock, par value $0.01 per shareCISSThe Nasdaq Stock Market LLC

From the cover page of the 20-F filed Apr 22, 2026 (Section 12(b) of the Exchange Act).4

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20
  21. 21
  22. 22
  23. 23
  24. 24
  25. 25
  26. 26
  27. 27
  28. 28