Imperial Petroleum Inc. Confirms 81.9% Controlling Stake in C3is Inc. Post-Reverse Split
CISS is trading near its 52-week low of $1.345 (14% above the low) on light trading volume (0.3× avg).
Summary
Imperial Petroleum Inc. filed an amended Schedule 13D, confirming its beneficial ownership of 81.9% of C3is Inc.'s common stock following the recent 1-for-20 reverse stock split and warrant exercises.
Key Events · Ownership and Investor Activity · CISS
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Majority Ownership Confirmed
Imperial Petroleum Inc. now beneficially owns 81.9% of C3is Inc.'s common stock, solidifying its controlling position.
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Post-Reverse Stock Split Update
The ownership percentage reflects adjustments following C3is Inc.'s 1-for-20 reverse stock split, which became effective on January 26, 2026.
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Preferred Stock Conversion Price Adjusted
The conversion price for Series A Convertible Preferred Stock was adjusted to $1.5131 per share due to the reverse stock split and related warrant exercises.
Analysis · CISS · Energy & Transportation
This Schedule 13D/A filing by Imperial Petroleum Inc. provides a critical update on its controlling stake in C3is Inc. The reported 81.9% beneficial ownership highlights the significant influence Imperial Petroleum Inc. holds over C3is Inc., especially after the recent 1-for-20 reverse stock split and subsequent adjustments to preferred stock conversion prices and warrant exercises. This level of ownership means Imperial Petroleum Inc. can effectively dictate corporate strategy and governance, which is a key consideration for minority shareholders. The filing also notes the adjustment of the Series A Convertible Preferred Stock conversion price to $1.5131 per share, which is very close to the current stock price, indicating potential for future conversions.
How filings like this one have moved
In the 30 days to Sep 14, 2026, 35.8% of the 1045 measured filings Wiseek scored 8 moved their stock by 5% or more by the next session's close. The median move was -0.43%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, CISS was trading at $1.54 on NASDAQ in the Energy & Transportation sector, with a market capitalization of approximately $335.8K. The 52-week trading range was $1.35 to $152.40. This filing was assessed with neutral market sentiment and an importance score of 8 out of 10.