Controlling Shareholder's Stake Diluted to 82.9% Amidst Ongoing ATM Program
CISS is trading near its 52-week low of $1.54 (8.4% above the low) on light trading volume (0.3× avg).
Summary
C3is Inc.'s controlling shareholder, Imperial Petroleum Inc., reported a significant drop in its ownership stake to 82.9% due to the company's ongoing at-the-market share issuance program.
Key Events · Ownership and Investor Activity · CISS
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Controlling Stake Reduced
Imperial Petroleum Inc.'s beneficial ownership in C3is Inc. decreased from 90.2% to 82.9% as of June 22, 2026.
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Dilution from ATM Program
The reduction in ownership percentage is a direct result of C3is Inc. issuing new shares through its at-the-market (ATM) sales program.
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Preferred Stock Conversion Price Adjusted
The conversion price for the Series A Convertible Preferred Stock was adjusted to $2.0916 due to warrant exercise price adjustments.
Analysis · CISS · Energy & Transportation
Imperial Petroleum Inc., the controlling shareholder of C3is Inc., reported a significant reduction in its beneficial ownership percentage from 90.2% to 82.9%. This dilution is attributed to the ongoing issuance of shares by C3is Inc. under its at-the-market (ATM) sales program. This update confirms substantial ongoing dilution, which is a critical concern for existing shareholders, especially given the company's history of extreme dilution and recent proposals for further reverse stock splits.
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 $1.67 on NASDAQ in the Energy & Transportation sector, with a market capitalization of approximately $930.7K. The 52-week trading range was $1.54 to $831.59. This filing was assessed with negative market sentiment and an importance score of 8 out of 10.