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.
Imperial Petroleum Inc. has filed Amendment No. 11 to its Schedule 13D for C3is Inc., updating its ownership position in the company’s common stock. Imperial Petroleum now beneficially owns 7,171,543 shares of C3is common stock, with sole voting and dispositive power over these shares, representing 82.9% of the outstanding class.
The amendment reflects changes driven by an adjustment in the conversion price of C3is’s 5.0% Series A Cumulative Convertible Perpetual Preferred Stock to $2.0916 per share, as well as dilution from additional C3is shares issued under its at-the-market sales program. Imperial states it may buy more, hold, or sell shares over time, depending on its ongoing assessment of C3is and market conditions.
C3is Inc. is calling a 2026 annual stockholders meeting for July 17, 2026 in Athens, presenting its 2025 audited results and several key voting items. Stockholders will vote on electing two Class III directors, ratifying Deloitte as auditor for 2026, and approving one or more reverse stock splits of common stock at ratios between one-for-two and one-for-1,000, in total not exceeding one-for-1,000, to be used at the Board’s discretion within three years.
For 2025, C3is reported revenues of $34.8 million, down from $42.3 million in 2024, but net income of $10.5 million compared with a 2024 net loss of $2.7 million, helped by a large non-cash gain on warrants. Total assets were $98.5 million and stockholders’ equity was $95.1 million as of December 31, 2025, with 659,668 common shares and 600,000 Series A preferred shares outstanding. The company highlights that prior reverse stock splits have been used to regain and maintain compliance with Nasdaq’s $1.00 minimum bid price and seeks broader flexibility to implement further splits if needed. Holders of common and Series A preferred stock as of June 16, 2026 can vote by internet, phone, or mail.
C3is Inc. disclosure: TowerView LLC reports beneficial ownership of 35,000 shares of Common Stock, representing 6.5% of the class as of 05/18/2026. The filing shows TowerView holds sole voting and sole dispositive power over these shares.
C3is Inc. reports first-quarter 2026 results showing strong operating gains. Adjusted net income rose 358% year-over-year to $5.5 million, adjusted EBITDA increased 132% to $6.9 million, and revenue was $11.6 million. The company closed the quarter with $27 million cash and had 541,088 common shares outstanding as of May 15, 2026.
The fleet comprised five vessels with total capacity of 260,671 dwt; on a pro forma basis after one additional MR product tanker delivery, capacity would be ~311,431 dwt. Management notes no outstanding bank debt and that remaining acquisition payments for two product tankers are payable within one year from their acquisition agreements.
C3is Inc. files a prospectus supplement incorporating a Form 6-K that furnishes its unaudited financial and operating results for the quarter ended March 31, 2026.
The Company reported Adjusted Net Income of $5.5 million (358% year-over-year increase), Adjusted EBITDA of $6.9 million (132% increase), revenues of $11.6 million, and a cash balance of $27 million. Shares outstanding were 541,088 as of May 15, 2026. The fleet consists of five vessels with total capacity of 260,671 dwt, and management notes delivery of an additional MR product tanker will increase pro forma capacity to 311,431 dwt. The Company states it has no outstanding bank debt and that remaining acquisition payments for recently acquired vessels are payable within one year of the acquisition agreements.
C3is Inc. filed a Prospectus Supplement to its Form F-1 to update the registration with the Company’s Form 6-K and to furnish unaudited results for the quarter ended March 31, 2026.
The supplement incorporates a press release showing Adjusted Net Income of $5.5M (a 358% year-over-year increase), Adjusted EBITDA of $6.9M, revenues of $11.6M, operating cash flow of $9.3M, and a cash balance of $27M. The filing also states 541,088 common shares outstanding as of May 15, 2026. The supplement is qualified by, and should be read together with, the May 13, 2026 prospectus.
C3is Inc. files a Prospectus Supplement to its Form F-1 to incorporate a Form 6-K and to disclose unaudited Q1 2026 results. The Company reported $5.5 million of Adjusted Net Income (a 358% year-over-year rise), $6.9 million of Adjusted EBITDA, and revenues of $11.6 million for the quarter ended March 31, 2026.
The supplement also states 541,088 common shares outstanding as of May 15, 2026, a cash balance of $27 million, no outstanding bank debt, and delivery of one newly acquired product tanker in early Q2 with a second expected in Q3 2026.
C3is Inc. reported much stronger underlying results for the first quarter of 2026. Adjusted net income jumped 358% year-over-year to $5.5M, while adjusted EBITDA rose 132% to $6.9M. Revenue reached $11.6M, supported by higher shipping rates.
The company generated cash flow from operating activities of $9.3M, lifting its cash balance to about $27M and leaving it with no outstanding bank debt. Its fleet earned an average daily Time Charter Equivalent rate of roughly $32,200, and there were 541,088 common shares outstanding as of May 15, 2026.