STOCK TITAN

C3is Inc. SEC Filings

CISS NASDAQ

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.

Our SEC filing database is enhanced with expert analysis from Rhea-AI, providing insights into the potential impact of each filing on C3is's stock performance. Each filing includes a concise AI-generated summary, sentiment and impact scores, and end-of-day stock performance data showing the actual market reaction. Navigate easily through different filing types including 10-K annual reports, 10-Q quarterly reports, 8-K current reports, proxy statements (DEF 14A), and Form 4 insider trading disclosures.

Designed for fundamental investors and regulatory compliance professionals, our page simplifies access to critical SEC filings. By combining real-time EDGAR feed updates, Rhea-AI's analytical insights, and historical stock performance data, we provide comprehensive visibility into C3is's regulatory disclosures and financial reporting.

Rhea-AI Summary

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.

Rhea-AI Impact
Rhea-AI Sentiment
End-of-Day
31.14%
Tags
prospectus
-
Rhea-AI Summary

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.

Rhea-AI Impact
Rhea-AI Sentiment
End-of-Day
31.14%
Tags
current report
-
Rhea-AI Summary

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.

Rhea-AI Impact
Rhea-AI Sentiment
End-of-Day
-- %
Tags
ownership
Rhea-AI Summary

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.

Rhea-AI Impact
Rhea-AI Sentiment
End-of-Day
-- %
Tags
ownership
-
Rhea-AI Summary

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.

Rhea-AI Impact
Rhea-AI Sentiment
End-of-Day
-- %
Tags
prospectus
-
Rhea-AI Summary

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.

Rhea-AI Impact
Rhea-AI Sentiment
End-of-Day
-- %
Tags
prospectus
Rhea-AI Summary

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.

Rhea-AI Impact
Rhea-AI Sentiment
End-of-Day
-- %
Tags
prospectus
-
Rhea-AI Summary

C3is Inc. filed a prospectus supplement that incorporates a new Form 6-K describing a recently completed reverse stock split. 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. This reduced the number of outstanding common shares from approximately 24.7 million to approximately 1.23 million, while the par value and other terms of the common stock remained unchanged.

No fractional shares were issued; holders who would otherwise receive a fraction received cash instead. Outstanding warrants and 5.00% Series A Convertible Preferred Stock were proportionately adjusted for the split, and certain warrant exercise and preferred conversion prices will be further adjusted based on the lowest daily volume weighted average price over a specified 10‑trading‑day window around the effective date. The post-split common shares trade on the Nasdaq Capital Market under the symbol CISS with a new CUSIP number Y18284 177.

Rhea-AI Impact
Rhea-AI Sentiment
End-of-Day
-- %
Tags
prospectus
-
Rhea-AI Summary

C3IS Inc. (CISS) has implemented a one-for-20 reverse stock split of its common shares. Effective as of 11:59 p.m. Eastern time on January 25, 2026, every 20 previously issued and outstanding common shares were combined into one new share. This reduced the number of outstanding common shares from approximately 24.7 million to approximately 1.23 million, while leaving the par value and other terms of the common stock unchanged.

No fractional shares were issued; stockholders who would have held a fractional share instead receive a cash payment based on the closing Nasdaq price on the trading day immediately before the effective date, adjusted for the split. The company’s warrants and 5.00% Series A Cumulative Convertible Perpetual Preferred Stock are being proportionately adjusted to increase exercise and conversion prices and reduce the number of shares issuable, with further adjustment of certain Class B-1, B-2, C-1 and C-2 warrants and the Series A conversion price to the lowest daily volume weighted average price over a specified 10-trading-day window around the effective date. C3IS shares continue trading on Nasdaq under the symbol “CISS” with a new CUSIP.

Rhea-AI Impact
Rhea-AI Sentiment
End-of-Day
-- %
Tags
current report
Rhea-AI Summary

C3is Inc. has approved a one-for-twenty reverse stock split of its common stock to help meet Nasdaq’s minimum bid price requirement and maintain its listing. The split will take effect at 11:59 pm Eastern Time on January 25, 2026, and the shares will begin trading on a split-adjusted basis on the Nasdaq Capital Market on January 26, 2026.

Every 20 issued common shares will be combined into one share, keeping the par value at $0.01 per share and reducing the number of outstanding shares from approximately 20.5 million to approximately 1.02 million. Outstanding warrants and Series A Convertible Preferred Stock will be proportionately adjusted, with additional adjustment mechanics for Class B and Class C Warrants over a brief post‑effective period. Stockholders will receive cash instead of any fractional shares, based on the closing price on January 23, 2026.

Rhea-AI Impact
Rhea-AI Sentiment
End-of-Day
-35.51%
Tags
prospectus

FAQ

How many C3is (CISS) SEC filings are available on StockTitan?

StockTitan tracks 111 SEC filings for C3is (CISS), including 10-K annual reports, 10-Q quarterly reports, 8-K current reports, and Form 4 insider trading disclosures. Each filing includes AI-generated summaries, impact scoring, and sentiment analysis.

When was the most recent SEC filing for C3is (CISS)?

The most recent SEC filing for C3is (CISS) was filed on February 19, 2026.