Blue Water Acquisition(BWIVU) - Prospectus(update)

As filed with the U.S. Securities and Exchange Commission on March 10, 2026. Registration No. 333-291959 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 2 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Blue Water Acquisition Corp. IV (203) 489-2110 (Address, including zip code, and telephone number, including area code, of registrant's principal executive offices) Joseph Hernandez 15 E. Putnam Avenue Suite 363 Greenwich, CT 06830 (203) 489-2110 (Exa ...