C3is Completes 1-for-40 Reverse Split; Warrants Reset to Lowest VWAP
CISS sits 46% above its 52-week low of $2.236 on elevated volume (10× avg).
Summary
C3is completed its 1-for-40 reverse split, cutting shares to 1.44 million. Warrant exercise prices reset to the lowest VWAP over a 10-day window, with zero-cash exercise on some warrants — a structure that could accelerate dilution.
Key Events · Corporate Governance and Compliance · CISS
-
Reverse Split Completed
1-for-40 reverse split effective 11:59 p.m. ET on August 18, 2026. Outstanding shares reduced from 57.6 million to 1.44 million. New CUSIP Y18284409.
-
Warrant Exercise Price Reset
Exercise prices of Class B-1, B-2, C-1, C-2 warrants and Series A preferred conversion price will be adjusted to the lowest daily VWAP during the 5 trading days before and after the effective date, if lower than current exercise price.
-
Zero-Cash Exercise Option
Class B-1 and C-1 warrants are exercisable via an alternative zero-cash exercise exchange option, potentially increasing share issuance without cash proceeds.
-
Nasdaq Compliance Effort
The reverse split is part of the company's effort to regain Nasdaq Capital Market compliance, following shareholder approval of up to 1-for-1,000 split in July 2026.
Analysis · CISS · Energy & Transportation
C3is Inc. completed its 1-for-40 reverse stock split effective August 18, 2026, reducing outstanding shares from 57.6 million to 1.44 million. The split was announced two days ago, but this filing adds critical details: the new CUSIP, the exact effective time, and — most importantly — that warrant exercise prices will be reset to the lowest daily VWAP over a 10-day window around the split. That reset mechanism, combined with the zero-cash exercise option on Class B-1 and C-1 warrants, means the split itself triggers a potential repricing of derivative securities that could lead to further dilution. The company is using the split to regain Nasdaq compliance, but the warrant adjustment terms are unusually aggressive and could pressure the stock further.
How filings like this one have moved
In the 30 days to Oct 3, 2026, 29% of the 1653 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was -0.58%. 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 $3.26 on NASDAQ in the Energy & Transportation sector, with a market capitalization of approximately $896.2K. The 52-week trading range was $2.24 to $33,263.44. This filing was assessed with negative market sentiment and an importance score of 7 out of 10.