---
schema_version: "secwatch.filing_event.v1"
accession: "0001829126-26-009347"
form_type: "8-K"
ticker: "BKHA"
cik: "0002000775"
company_name: "Black Hawk Acquisition Corp"
filed_at: "2026-08-26T17:42:52+00:00"
generated_at: "2026-08-26T17:44:25.512758+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Black Hawk Acquisition issues up to $300K convertible note to sponsor for working capital

## Summary
- Note dated Aug 21, 2026, up to $300,000 from Black Hawk Management LLC (sponsor) for working capital and extension fees.
- 10% annual interest from July 8, 2026, for one year; due at DeSPAC closing or liquidation.
- Sponsor may convert principal into shares at $1.00/share (approx 1/10 of IPO price) upon DeSPAC; cash repayment in liquidation.
- Sponsor waives claims against trust account; note unsecured, issued under Section 4(a)(2) exemption.

## SEC filing metadata
- accession: 0001829126-26-009347
- form_type: 8-K
- ticker: BKHA
- cik: 0002000775
- company_name: Black Hawk Acquisition Corp
- filed_at: 2026-08-26T17:42:52+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2000775/000182912626009347/0001829126-26-009347-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2000775/000182912626009347/blackhawkacq_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001829126-26-009347
- JSON: https://secwatch.observer/filing/0001829126-26-009347.json
- Plain text: https://secwatch.observer/filing/0001829126-26-009347.txt

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