C3is Inc. effected a one-for-40 reverse stock split of its common stock, effective as of 11:59 p.m. Eastern time on August 18, 2026. The transaction reduced outstanding shares from approximately 57.6 million to 1.44 million, with fractional shares converted to cash payments. Trading on a split-adjusted basis commenced on the Nasdaq Capital Market on August 19, 2026. Warrants and Series A Convertible Preferred Stock were proportionately adjusted, and exercise prices for certain warrants may be further adjusted based on volume-weighted average pricing in the weeks surrounding the effective time. The company operates in the cybersecurity industry.
