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.
The C3is Inc. (CISS) SEC filings page brings together the company’s regulatory disclosures as a foreign private issuer in the deep sea freight transportation sector. C3is Inc. files annual reports on Form 20-F and furnishes interim information on Form 6-K, covering its dry bulk and crude oil seaborne transportation business, which is based on three Handysize dry bulk carriers and an Aframax oil tanker with a combined capacity of 213,464 deadweight tons (dwt).
Recent Form 6-K filings include press releases with unaudited financial and operating results for the first, second and third quarters, as well as six- and nine-month periods. These filings provide details on voyage revenues, time charter equivalent (TCE) rates, fleet utilization, voyage and operating expenses, and non-GAAP measures such as EBITDA, Adjusted EBITDA and Adjusted Net Income. Other 6-Ks furnish Management’s Discussion and Analysis of Financial Condition and Results of Operations and consolidated financial statements for interim periods.
C3is Inc. also uses Form 6-K to disclose capital markets transactions, such as registered direct offerings and public offerings of common shares, units, pre-funded warrants and different classes of warrants. Filings describe placement agency agreements, securities purchase agreements, forms of Class D, Class E and pre-funded warrants, and the terms under which these instruments are exercisable. Certain 6-Ks note that the information is incorporated by reference into existing registration statements on Form S-8 and Form F-3.
On this page, AI-powered tools can help summarize lengthy C3is Inc. filings, highlight key terms in equity offerings, and clarify the impact of warrant structures and non-cash fair value changes on reported results. Users can quickly locate quarterly and annual disclosures, proxy materials, and offering-related documents, and use AI-generated insights to understand how the company’s shipping operations, financing activities and warrant liabilities are reflected across its SEC reporting.
C3is Inc. filed a Prospectus Supplement dated
The Company reported a Net Income of
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
The Company reported a Net Income of
C3is Inc. files a prospectus supplement that incorporates a Form 6-K furnishing its unaudited results for the three and twelve months ended
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
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
C3is Inc. reported a strong turnaround for 2025, posting net income of
The company ended 2025 with
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
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.
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. This corporate action reduced the number of outstanding common shares from approximately 24.7 million to approximately 1.23 million, while leaving the $0.01 par value and authorized share counts unchanged.
No fractional shares were issued; stockholders who would have held fractional shares instead receive a cash payment based on the closing Nasdaq price on the trading day before the split became effective. The company’s common stock continues to trade on the Nasdaq Capital Market under the symbol “CISS” with a new CUSIP number Y18284 177. Outstanding warrants and Series A Convertible Preferred Stock are being proportionately adjusted so that the exercise and conversion economics remain consistent with their original aggregate exercise price.