---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-26-012684"
form_type: "8-K"
ticker: "BWIV"
cik: "0002082847"
company_name: "Blue Water Acquisition Corp. IV"
filed_at: "2026-03-25T23:59:59+00:00"
generated_at: "2026-05-15T09:07:52.235355+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Blue Water Acquisition Corp. IV closes $130M IPO; over-allotment partially exercised

## Summary
- Gross proceeds $130M from 13M units at $10/unit, including partial over-allotment of 500K units.
- Private placement of 425K Private Units raised $4.25M from Sponsor and BTIG; funds placed in trust.
- Appointed independent directors Treavor L. Hawkins, Timothy N. Coulson, Laurent D. Hermouet to the board.
- Target acquisition sectors: biotechnology, healthcare, technology; press release also cites AI-driven companies.
- Adopted amended and restated memorandum and articles of association in connection with the IPO.

## SEC filing metadata
- accession: 0001493152-26-012684
- form_type: 8-K
- ticker: BWIV
- cik: 0002082847
- company_name: Blue Water Acquisition Corp. IV
- filed_at: 2026-03-25T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 3.02, 5.02, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2082847/000149315226012684/0001493152-26-012684-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2082847/000149315226012684/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-26-012684
- JSON: https://secwatch.observer/filing/0001493152-26-012684.json
- Plain text: https://secwatch.observer/filing/0001493152-26-012684.txt

## Source-grounded claims
- claim_id: 1b3fd3b9276cbff4db626ebf4d0ee5fd14472e0f
  claim: Blue Water Acquisition Corp. IV: Adopted Amended and Restated Memorandum and Articles of Association in connection with IPO (effective 2026-03-19).
  evidence_excerpt: On March 19, 2026, and in connection with the IPO, the Company adopted its Amended and Restated Memorandum and Articles of Association.
  evidence_url: https://www.sec.gov/Archives/edgar/data/2082847/000149315226012684/0001493152-26-012684-index.htm
- claim_id: 268c6b72b02a23bb177e3a71fb5a11f8dc99f160
  claim: Blue Water Acquisition Corp. IV entered into Underwriting Agreement with BTIG, LLC valued at $130,000,000 (effective 2026-03-19).
  evidence_excerpt: Underwriting Agreement, dated March 19, 2026, by and between the Company and BTIG, LLC, as representative of the underwriters ("BTIG")
  evidence_url: https://www.sec.gov/Archives/edgar/data/2082847/000149315226012684/0001493152-26-012684-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.