---
schema_version: "secwatch.filing_event.v1"
accession: "0001829126-25-004621"
form_type: "8-K"
ticker: "BKHA"
cik: "0002000775"
company_name: "Black Hawk Acquisition Corp"
filed_at: "2025-06-20T23:59:59+00:00"
generated_at: "2026-05-19T02:01:38.372383+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Black Hawk Acquisition Corp amends Trust Amendment Proposal to remove $55K cap, fix $0.033/share fee

## Summary
- Filed supplement to definitive proxy statement (filed June 10) on June 20, 2025, amending Trust Amendment Proposal language.
- Removed discretion to deposit up to $55,000 per month; now requires $0.033 per outstanding public share for each one-month extension.
- Extension period allows up to 18 one-month extensions to December 22, 2026, to complete a business combination.
- Change intended to eliminate discretion and ensure greater clarity and consistency in extension fee obligation.

## SEC filing metadata
- accession: 0001829126-25-004621
- form_type: 8-K
- ticker: BKHA
- cik: 0002000775
- company_name: Black Hawk Acquisition Corp
- filed_at: 2025-06-20T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2000775/000182912625004621/0001829126-25-004621-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2000775/000182912625004621/blackhawkacq_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001829126-25-004621
- JSON: https://secwatch.observer/filing/0001829126-25-004621.json
- Plain text: https://secwatch.observer/filing/0001829126-25-004621.txt

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