---
schema_version: "secwatch.filing_event.v1"
accession: "0001829126-26-004870"
form_type: "8-K"
ticker: "BKHA"
cik: "0002000775"
company_name: "Black Hawk Acquisition Corp"
filed_at: "2026-05-08T23:59:59+00:00"
generated_at: "2026-05-14T21:13:11.142221+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Black Hawk Acquisition issues up to $300K convertible note to sponsor at 10% interest

## Summary
- Principal amount up to $300,000; interest accrues at 10% per annum from April 20, 2026.
- Note due and payable upon closing of a business combination (DeSPAC) or liquidation of the company.
- Sponsor may convert unpaid principal into ordinary shares at $1.00 per share upon DeSPAC.
- Proceeds used for working capital expenses; note is unsecured and sponsor waives trust account claims.
- Holder entitled to registration rights for conversion shares post-DeSPAC.

## SEC filing metadata
- accession: 0001829126-26-004870
- form_type: 8-K
- ticker: BKHA
- cik: 0002000775
- company_name: Black Hawk Acquisition Corp
- filed_at: 2026-05-08T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2000775/000182912626004870/0001829126-26-004870-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2000775/000182912626004870/blackhawkacq_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001829126-26-004870
- JSON: https://secwatch.observer/filing/0001829126-26-004870.json
- Plain text: https://secwatch.observer/filing/0001829126-26-004870.txt

## Key facts
- Debt Financings
  Black Hawk Acquisition Corp incurred convertible notes of up to $300,000 with Black Hawk Management LLC at 10% per annum maturing upon the occurrence of (i) the closing of the Company’s initial business combination (a “DeSPAC Transaction”) or (ii) the liquidation of the Company.
  - Instrument: convertible notes
  - Principal: up to $300,000
  - Counterparty: Black Hawk Management LLC
  - Rate: 10% per annum
  - Maturity: upon the occurrence of (i) the closing of the Company’s initial business combination (a “DeSPAC Transaction”) or (ii) the liquidation of the Company
  - Event: incurrence
  source text: On May 4, 2026, Black Hawk Acquisition Corp., a Cayman Islands exempted company (the “Company”), issued a convertible promissory note (the “Note”) in the principal amount of up to $300,000 to Black Hawk Management LLC (the “Sponsor”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/2000775/000182912626004870/0001829126-26-004870-index.htm
- Equity Issuances
  Black Hawk Acquisition Corp issued convertible note to Black Hawk Management LLC for principal amount of up to $300,000.
  - Security: convertible note
  - Purchaser: Black Hawk Management LLC
  - Consideration: principal amount of up to $300,000
  source text: On May 4, 2026, Black Hawk Acquisition Corp., a Cayman Islands exempted company (the “Company”), issued a convertible promissory note (the “Note”) in the principal amount of up to $300,000 to Black Hawk Management LLC (the “Sponsor”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/2000775/000182912626004870/0001829126-26-004870-index.htm

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