Welcome to our dedicated page for C3is SEC filings (Ticker: CISS), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
C3is Inc. filings document a foreign private issuer operating a dry bulk and tanker shipping business. Form 6-K reports provide formal records of unaudited operating and financial results, vessel acquisition agreements, charter and fleet information, and securities matters tied to the company's common shares on The Nasdaq Capital Market.
The filing record also covers capital-structure actions, including reverse stock splits, amendments to articles of incorporation, warrant exercise and adjustment provisions, Series A Convertible Preferred Stock adjustments, registered offerings and an at-the-market sales agreement. Registration-statement references and incorporated exhibits describe placement-agent agreements, prospectus supplements and share-based compensation registration matters.
C3is Inc. proposes an at-the-market offering of up to $98,000,000 of common stock under a Sales Agreement with Aegis Capital Corp., allowing sales from time to time on Nasdaq or by other permitted methods.
The Sales Agent will receive a 2.0% commission on amounts sold. Proceeds are intended for working capital and potential vessel acquisitions, including two MR product tankers with combined purchase prices of $39.78 million; timing and amounts sold will vary with market conditions.
C3is Inc. filed a Prospectus Supplement dated February 19, 2026 that attaches a Form 6-K reporting unaudited financial results for the three and twelve months ended December 31, 2025.
The Company reported a Net Income of $10.5 million for 2025 (an increase of 481% versus 2024) and EBITDA of $17.0 million (an increase of 244%). Cash at year-end was $14.9 million after repaying a $15.1 million seller-financing balance on the Eco Spitfire. The fleet totals four vessels with combined capacity of 213,464 dwt; on a pro forma basis after two agreed MR product tanker deliveries the fleet capacity would be approximately 310,667 dwt. A conference call and webcast were scheduled for February 19, 2026.
C3is Inc. files a Prospectus Supplement to its Form F-1 and furnishes a Form 6-K updating its registration materials and attaching unaudited financial results for the three and twelve months ended December 31, 2025.
The Company reported a Net Income of $10.5 million and EBITDA of $17.0 million for 2025 (management states increases of 481% and 244%, respectively, versus 2024). It ended the year with $14.9 million in cash after repaying $15.1 million of seller financing and reports a fleet capacity of 213,464 dwt, pro forma 310,667 dwt after two MR product tankers expected in 2026.
C3is Inc. files a prospectus supplement that incorporates a Form 6-K furnishing its unaudited results for the three and twelve months ended December 31, 2025.
The Company reported Net Income of $10.5 million and EBITDA of $17.0 million for 2025, ended the year with $14.9 million in cash after repaying a $15.1 million seller-financing balance, and disclosed plans to acquire two MR product tankers with scheduled deliveries in 2026. The filing restates fleet capacity: four vessels totaling 213,464 dwt and a pro forma six-vessel capacity of 310,667 dwt.
C3is Inc. reported unaudited results for the quarter and year ended December 31, 2025, showing a Net Income of $10.5 million for 2025 and EBITDA of $17.0 million. Management attributes the improvements to fleet expansion and operational efficiency, and ended the year with $14.9 million in cash after repaying $15.1 million on the Eco Spitfire.
The Company owns four vessels with combined capacity of 213,464 dwt and has agreements to acquire two MR product tankers, which would raise pro forma fleet capacity to approximately 310,667 dwt. A conference call and webcast were scheduled for February 19, 2026.
C3is Inc. reported a strong turnaround for 2025, posting net income of $10.5M versus a loss in 2024, with EBITDA of $17.0M. The CEO highlighted net income growth of 481% and EBITDA growth of 244%, driven by fleet expansion and operational efficiency.
The company ended 2025 with $14.9M in cash, while repaying the remaining $15.1M balance on the Eco Spitfire loan, leaving a fully unencumbered fleet. Statutory revenue declined to $34.8M from $42.3M, but gains on warrants and lower finance costs supported profitability.
C3is currently owns four vessels totaling 213,464 dwt and has agreements to acquire two MR product tankers, which will raise capacity to about 310,667 dwt and expand fleet capacity by 387% from inception. Adjusted EPS for common shareholders remained negative in 2025 due to preferred dividends and deemed dividends on convertible preferred shares.
C3IS INC. received a Schedule 13G reporting that Ayrton Capital LLC, Alto Opportunity Master Fund, SPC – Segregated Master Portfolio B, and Waqas Khatri beneficially own 856,228 shares of its common stock, representing 9.99% of the class.
The position consists of 260,617 shares of common stock and 595,611 shares issuable upon exercise of warrants, which are subject to a 9.99% beneficial ownership blocker. As of December 31, 2025, the reporting persons have sole voting and dispositive power over these shares and state the holdings are in the ordinary course of business, not to influence control.
Imperial Petroleum Inc. has filed Amendment No. 9 to its Schedule 13D, reporting beneficial ownership of 9,913,422 shares of C3is Inc. common stock, representing 81.9% of the outstanding class. The filing reflects updated calculations after corporate actions at C3is Inc.
The amendment explains that the ownership change arises from an adjusted conversion price of C3is’s 5.0% Series A Cumulative Convertible Perpetual Preferred Stock to $1.5131, following a 1‑for‑20 reverse stock split of the common stock effective January 26, 2026, and related warrant exercise price adjustments through February 2, 2026. It also updates the ownership percentage to account for additional shares issued upon warrant exercises.
Imperial Petroleum states it acquired its stake through a spin‑off distribution and will continue to review its investment, with flexibility to buy more, hold, or sell shares through various transaction types. Chairman and CEO Harry N. Vafias, who is Non‑Executive Chairman of C3is Inc., separately beneficially owns 5,028 C3is common shares.
C3is Inc. has implemented a one-for-20 reverse stock split of its common stock, effective as of 11:59 p.m. Eastern time on January 25, 2026. The split reduced the number of outstanding common shares from approximately 24.7 million to approximately 1.23 million and applied to all issued and outstanding shares.
No fractional shares were issued; stockholders who would otherwise hold a fractional share receive a cash payment instead. The company’s outstanding warrants and 5.00% Series A Cumulative Convertible Perpetual Preferred Stock are being proportionately adjusted so that exercise and conversion prices increase and the number of shares issuable decreases, with additional adjustments tied to the lowest daily volume weighted average price around the effective date. The reverse split does not change the par value or authorized number of common or preferred shares, and the stock continues to trade on the Nasdaq Capital Market under the symbol “CISS” with a new CUSIP.
C3is Inc. filed a prospectus supplement that incorporates a new Form 6-K describing a reverse stock split of its common shares. Effective as of 11:59 p.m. Eastern time on January 25, 2026, the company implemented a one-for-20 reverse stock split of its common stock, reducing the number of outstanding common shares from approximately 24.7 million to approximately 1.23 million.
The split affected all outstanding common shares, with holders who would otherwise receive fractional shares instead receiving a cash payment. The company’s outstanding warrants and Series A Convertible Preferred Stock are being proportionately adjusted for share counts and exercise or conversion prices, with additional formula-based adjustments tied to trading prices around the effective date. The common shares continue to trade on Nasdaq under the symbol CISS and now carry a new CUSIP number.