---
schema_version: "secwatch.filing_event.v1"
accession: "0001829126-24-001885"
form_type: "8-K"
ticker: "BKHA"
cik: "0002000775"
company_name: "Black Hawk Acquisition Corp"
filed_at: "2024-03-26T23:59:59+00:00"
generated_at: "2026-06-04T08:10:05.285178+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Black Hawk Acquisition closes upsized $69M SPAC IPO; $69.3M placed in trust

## Summary
- Sold 6,900,000 units at $10/unit, gross proceeds $69M; underwriter option for up to 1,035,000 additional units.
- Private placement to sponsor of 235,500 placement units at $10/unit raised $2.355M.
- Total trust account funded with $69.345M from IPO and private placement proceeds.
- Must complete initial business combination within 15 months, extendable to 21 months.
- Units trade on Nasdaq as BKHAU; shares and rights expected to trade as BKHA and BKHAR.

## SEC filing metadata
- accession: 0001829126-24-001885
- form_type: 8-K
- ticker: BKHA
- cik: 0002000775
- company_name: Black Hawk Acquisition Corp
- filed_at: 2024-03-26T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 3.02, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2000775/000182912624001885/0001829126-24-001885-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2000775/000182912624001885/blackhawk_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001829126-24-001885
- JSON: https://secwatch.observer/filing/0001829126-24-001885.json
- Plain text: https://secwatch.observer/filing/0001829126-24-001885.txt

## Key facts
- Governance Changes
  Black Hawk Acquisition Corp: Adopted Second Amended and Restated Memorandum and Articles of Association in connection with IPO (effective 2024-03-22).
  - Change: charter amendment
  - Effective: 2024-03-22
  source text: On March 22, 2023, the Company adopted its Second Amended and Restated Memorandum and Articles of Association.
  evidence_url: https://www.sec.gov/Archives/edgar/data/2000775/000182912624001885/0001829126-24-001885-index.htm
- Material Agreements
  Black Hawk Acquisition Corp amended Letter Agreement with EF Hutton LLC (effective 2024-03-25).
  - Action: amendment
  - Agreement: underwriting
  - Counterparty: EF Hutton LLC
  - Effective: 2024-03-25
  source text: on March 25, 2024, the Company entered into a letter agreement (the “Letter Agreement”) with EF Hutton LLC, as representative of the several underwriters named on Schedule A of the Underwriting Agreement, to amend the Underwriting Agreement
  evidence_url: https://www.sec.gov/Archives/edgar/data/2000775/000182912624001885/0001829126-24-001885-index.htm
- Material Agreements
  Black Hawk Acquisition Corp entered into Investment Management Trust Agreement with Continental Stock Transfer & Trust Company, as trustee (effective 2024-03-20).
  - Action: entry
  - Counterparty: Continental Stock Transfer & Trust Company, as trustee
  - Effective: 2024-03-20
  source text: Investment Management Trust Agreement, dated March 20, 2024, by and between the Company and Continental Stock Transfer & Trust Company, as trustee
  evidence_url: https://www.sec.gov/Archives/edgar/data/2000775/000182912624001885/0001829126-24-001885-index.htm
- Material Agreements
  Black Hawk Acquisition Corp amended Subscription Agreement with the Sponsor (effective 2024-03-20).
  - Action: amendment
  - Agreement: equity purchase
  - Counterparty: the Sponsor
  - Effective: 2024-03-20
  source text: Subscription Agreement, dated October 16, 2023, as amended, by and between the Company and the Sponsor on November 13, 2023 and March 20, 2024
  evidence_url: https://www.sec.gov/Archives/edgar/data/2000775/000182912624001885/0001829126-24-001885-index.htm
- Material Agreements
  Black Hawk Acquisition Corp entered into Underwriting Agreement with EF Hutton LLC (effective 2024-03-20).
  - Action: entry
  - Agreement: underwriting
  - Counterparty: EF Hutton LLC
  - Effective: 2024-03-20
  source text: Underwriting Agreement, dated March 20, 2024, by and between the Company and EF Hutton LLC (the “Underwriting Agreement”)
  evidence_url: https://www.sec.gov/Archives/edgar/data/2000775/000182912624001885/0001829126-24-001885-index.htm
- Material Agreements
  Black Hawk Acquisition Corp entered into Registration Rights Agreement with the Sponsor (effective 2024-03-20).
  - Action: entry
  - Counterparty: the Sponsor
  - Effective: 2024-03-20
  source text: ● Registration Rights Agreement, dated March 20, 2024, by and between the Company and the Sponsor, a copy of which is filed as Exhibit
  evidence_url: https://www.sec.gov/Archives/edgar/data/2000775/000182912624001885/0001829126-24-001885-index.htm

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