C3is Inc., a ship-owning company providing seaborne transportation services, saw its shares rebound 29.69% to $0.13 in after-hours trading on Monday, July 27, 2026. The sharp recovery followed a regular session plunge of 80.31%, where the stock closed at $0.10. The market movement coincided with the company’s announcement of an underwritten public offering of 11,535,000 units priced at $0.52 per unit, expected to generate gross proceeds of approximately $6.0 million before deducting underwriting discounts and expenses.

The offering is scheduled to close on or about July 28, 2026, subject to customary closing conditions. Maxim Group LLC is acting as the sole book-running manager for the transaction. C3is Inc. has granted underwriters a 45-day option to purchase up to an additional 908,765 common shares and/or additional warrants to purchase up to 908,765 common shares at the public offering price less underwriting discounts and commissions.

Offering Structure and Warrant Terms

Each unit in the offering consists of one common share (or a pre-funded warrant in lieu thereof) and one Class F warrant to purchase one common share. The Class F warrants are immediately exercisable upon issuance at an initial exercise price of $0.52 per share. However, the exercise price is subject to automatic adjustments on the second and fifth trading days following the closing of the offering, reducing to 70% and 50% of the initial exercise price, respectively. Concurrently with these price reductions, the number of common shares underlying the warrants will be proportionally increased.

Holders may also exercise the warrants on a zero-cash basis, exchanging each warrant for twice the number of common shares issuable on a cash exercise. Each warrant expires one year from the date of issuance.

Regulatory Filings and Market Context

A registration statement on Form F-1 (File No. 333-297627), as amended, was filed with the U.S. Securities and Exchange Commission (SEC) and became effective on July 27, 2026, in accordance with Section 8(a) of the Securities Act of 1933, as amended. A final prospectus relating to the offering will be filed with the SEC and is available on the agency’s website. The offering is being made only by means of a prospectus forming part of the effective registration statement.

C3is Inc.’s common shares are listed on the Nasdaq Capital Market under the symbol "CISS". Despite the after-hours rebound, the stock has faced significant long-term pressure, declining 99.98% over the past 12 months. The company reported a market capitalization of $151,910, with a 52-week high of $830.20 and a 52-week low of $0.10. Technical analysis from Benzinga Edge Stock Rankings indicates a negative price trend across short-, medium-, and long-term time frames.

Fleet and Operational Context

On a pro forma basis following the delivery of one additional MR product tanker it has contracted to acquire, C3is Inc.’s fleet will consist of six vessels: three Handysize dry bulk carriers, one Aframax tanker, and two MR product tankers. This fleet configuration provides a total carrying capacity of approximately 311,431 dwt, serving dry bulk and tanker charterers including major national and private industrial users, commodity producers, and traders.