UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 1 to Form F-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Icon Energy Corp. (Exact name of Registrant as specified in its charter) Republic of the Marshall Islands As filed with the U.S. Securities and Exchange Commission on September 17, 2025. Registration No. 333-290206 (State or other jurisdiction of incorporation or organization) 4412 (Primary Standard Industrial Classification Code Number) N/A (I.R.S. Empl ...