[EFFECT] Blue Water Acquisition Corp. IV SEC Filing Filing Impact (Neutral) Filing Sentiment (Neutral) Form Type EFFECT 03/20/2026 - 12:15 AM ⛶ Fullscreen UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Notice of Effectiveness Effectiveness Date: March 19, 2026 4:00 P.M. Form: S-1 CIK: 0002082847 Company Name: Blue Water Acquisition Corp. IV File Number: 333-291959 Source: View Original Filing on SEC EDGAR