---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-094858"
form_type: "8-K"
ticker: "BLUW"
cik: "0002050501"
company_name: "Blue Water Acquisition Corp. III"
filed_at: "2026-08-12T20:05:20+00:00"
generated_at: "2026-08-12T20:08:55.771355+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# Blue Water Acquisition III amends working capital note to $750K; sponsor advances $250K

## Summary
- Amended and restated convertible promissory note issued Aug 11, 2026 to sponsor Yorkville BW Acquisition Sponsor, LLC.
- Prior $500K note (Jan 26, 2026) replaced; additional $250K advance brings total principal to $750,000.
- Note bears no interest; principal due at earlier of initial business combination or winding up.
- Convertible at sponsor's option at $10.00/unit into max 75,000 New Units, identical to private placement units.
- Issued under Section 4(a)(2) exemption; sponsor waives claims against trust account.

## SEC filing metadata
- accession: 0001104659-26-094858
- form_type: 8-K
- ticker: BLUW
- cik: 0002050501
- company_name: Blue Water Acquisition Corp. III
- filed_at: 2026-08-12T20:05:20+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2050501/000110465926094858/0001104659-26-094858-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2050501/000110465926094858/tm2622935d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-094858
- JSON: https://secwatch.observer/filing/0001104659-26-094858.json
- Plain text: https://secwatch.observer/filing/0001104659-26-094858.txt

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