TowerView LLC Reports New 6.5% Passive Stake in C3is Inc. (CISS)

On May 18, 2026, TowerView LLC filed a Schedule 13G with the SEC, disclosing a new ownership stake in C3is Inc. (CISS). The investment firm reported the acquisition of 35,000 shares of common stock, representing a 6.5% ownership interest in the company. According to the filing, TowerView LLC holds sole voting and dispositive power over all 35,000 shares. The filing was made under Rule 13d-1(c), indicating a passive investment intent. TowerView LLC certified that the securities were not acquired for the purpose of changing or influencing the control of the issuer. The reporting person is a Delaware limited liability company based in New York, managed by Daniel R. Tisch. This transaction marks a significant new position for the filer in the Athens-based maritime shipping company, as the previous ownership percentage was 0.0%.