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.

C3IS Inc. announced a one-for-forty (1-for-40) reverse stock split of its common stock to increase the market price and satisfy Nasdaq's minimum bid price requirement for continued listing. The split becomes effective at 11:59 pm Eastern Time on August 18, 2026, with split-adjusted trading beginning on August 19, 2026. This action reduces outstanding shares from approximately 57.6 million to 1.44 million and proportionately adjusts warrants and Series A Convertible Preferred Stock exercise prices. Fractional shares will be cashed out at the closing price on August 18, 2026. C3IS Inc. is a ship-owning company providing dry bulk and crude oil seaborne transportation services.

On July 28, 2026, C3is Inc. completed a registered offering of 11,535,000 units, generating approximately $6.0 million in aggregate gross proceeds. The offering consisted of 10,435,000 common units, each comprising one common share and one Class F Warrant, and 1,100,000 pre-funded units, each comprising one pre-funded warrant and one Class F Warrant. The company granted the underwriter an option to purchase additional shares and warrants to cover over-allotments, which was exercised for 908,765 Class F Warrants. The Class F Warrants have an initial exercise price of $0.52, subject to downward resets to $0.364 and $0.26 on the second and fifth trading days following closing. C3is Inc. operates in the cybersecurity industry, providing AI-driven security solutions for cloud and enterprise environments.

C3is Inc. priced an underwritten public offering of 11,535,000 units at $0.52 per unit, expected to generate approximately $6.0 million in gross proceeds. Each unit includes one common share or pre-funded warrant and one Class F warrant with a one-year expiration. Warrants feature an initial exercise price of $0.52, subject to downward adjustments to 70% and 50% of the initial price on the second and fifth trading days following the closing. Maxim Group LLC is serving as the sole book-running manager. The offering is anticipated to close around July 28, 2026. C3is Inc. is a technology company providing cybersecurity solutions.

At its 2026 Annual Meeting of Stockholders held on July 17, 2026, C3is Inc. stockholders' approved one or more reverse stock splits of common stock at a ratio between 1-for-2 and 1-for-1,000. Additionally, the company's previous 1-for-7 reverse split, which was effective on April 26, 2026, reduced outstanding shares from 3.8 million to approximately 541,082. C3is Inc. operates in the technology sector, providing digital identity and identity-based security solutions.