---
schema_version: "secwatch.filing_event.v1"
accession: "0001829126-25-005054"
form_type: "8-K"
ticker: "BKHA"
cik: "0002000775"
company_name: "Black Hawk Acquisition Corp"
filed_at: "2025-07-14T23:59:59+00:00"
generated_at: "2026-05-18T06:46:53.596297+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Black Hawk Acquisition shareholders approve extension to Dec 2026; ~$51M redeemed

## Summary
- Shareholders approved extension of business combination deadline to Dec 22, 2026, with up to 18 monthly extensions at $150k each.
- 4,775,923 shares redeemed at ~$10.68, removing ~$51.01M from trust; $22.69M remains.
- Extension amendment and trust amendment passed with 5,857,684 for, 1,561,829 against, 124,343 abstentions.
- Company has 45-day cure period for missed extension payments; failure triggers liquidation.

## SEC filing metadata
- accession: 0001829126-25-005054
- form_type: 8-K
- ticker: BKHA
- cik: 0002000775
- company_name: Black Hawk Acquisition Corp
- filed_at: 2025-07-14T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 1.01, 5.03, 5.07, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2000775/000182912625005054/0001829126-25-005054-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2000775/000182912625005054/blackhawkacq_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001829126-25-005054
- JSON: https://secwatch.observer/filing/0001829126-25-005054.json
- Plain text: https://secwatch.observer/filing/0001829126-25-005054.txt

## Key facts
- Governance Changes
  Black Hawk Acquisition Corp: Amendment to Second Amended and Restated Memorandum and Articles of Association to extend business combination deadline (effective 2025-06-22).
  - Change: charter amendment
  - Effective: 2025-06-22
  source text: reflecting the extension of the date by which the Company must consummate a business combination from June 22, 2025 up to eighteen (18) times, each comprised of one month each (each an “ Extension ”) up to December 22, 2026
  evidence_url: https://www.sec.gov/Archives/edgar/data/2000775/000182912625005054/0001829126-25-005054-index.htm

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