{"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","discovered_at":"2026-05-14T18:03:26.429439+00:00","generated_at":"2026-06-04T08:10:05.285178+00:00","sec_items":["1.01","3.02","5.03","8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.7,"calibrated_materiality_score":0.7,"confidence":"high","headline":"Black Hawk Acquisition closes upsized $69M SPAC IPO; $69.3M placed in trust","bullets":["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."],"urls":{"canonical":"https://secwatch.observer/filing/0001829126-24-001885","json":"https://secwatch.observer/filing/0001829126-24-001885.json","markdown":"https://secwatch.observer/filing/0001829126-24-001885.md","text":"https://secwatch.observer/filing/0001829126-24-001885.txt","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"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-04T08:10:05.285178+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"f0d5742c268dce644e020d846bb492f5ca373024","claim":"Black Hawk Acquisition Corp: Adopted Second Amended and Restated Memorandum and Articles of Association in connection with IPO (effective 2024-03-22).","evidence_excerpt":"On March 22, 2023, the Company adopted its Second Amended and Restated Memorandum and Articles of Association.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/2000775/000182912624001885/0001829126-24-001885-index.htm","confidence":0.4,"family_label":"Governance Changes","details":[{"label":"Change","value":"charter amendment"},{"label":"Effective","value":"2024-03-22"}],"fact_type":"governance_change"},{"claim_id":"1b7df5ce748a6a4115544b60b1ff1b9268243a45","claim":"Black Hawk Acquisition Corp amended Letter Agreement with EF Hutton LLC (effective 2024-03-25).","evidence_excerpt":"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_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/2000775/000182912624001885/0001829126-24-001885-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"amendment"},{"label":"Agreement","value":"underwriting"},{"label":"Counterparty","value":"EF Hutton LLC"},{"label":"Effective","value":"2024-03-25"}],"fact_type":"material_agreement"},{"claim_id":"702ec9e6a63c87058ad4cf7bf0b69d7f52223daa","claim":"Black Hawk Acquisition Corp entered into Investment Management Trust Agreement with Continental Stock Transfer & Trust Company, as trustee (effective 2024-03-20).","evidence_excerpt":"Investment Management Trust Agreement, dated March 20, 2024, by and between the Company and Continental Stock Transfer & Trust Company, as trustee","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/2000775/000182912624001885/0001829126-24-001885-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"entry"},{"label":"Counterparty","value":"Continental Stock Transfer & Trust Company, as trustee"},{"label":"Effective","value":"2024-03-20"}],"fact_type":"material_agreement"},{"claim_id":"7bca918e74d00332b397cc442161dc365a34d2e8","claim":"Black Hawk Acquisition Corp amended Subscription Agreement with the Sponsor (effective 2024-03-20).","evidence_excerpt":"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_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/2000775/000182912624001885/0001829126-24-001885-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"amendment"},{"label":"Agreement","value":"equity purchase"},{"label":"Counterparty","value":"the Sponsor"},{"label":"Effective","value":"2024-03-20"}],"fact_type":"material_agreement"},{"claim_id":"a1331f6b7c971c40c6cc0d10baf3929c41f58dae","claim":"Black Hawk Acquisition Corp entered into Underwriting Agreement with EF Hutton LLC (effective 2024-03-20).","evidence_excerpt":"Underwriting Agreement, dated March 20, 2024, by and between the Company and EF Hutton LLC (the “Underwriting Agreement”)","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/2000775/000182912624001885/0001829126-24-001885-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"entry"},{"label":"Agreement","value":"underwriting"},{"label":"Counterparty","value":"EF Hutton LLC"},{"label":"Effective","value":"2024-03-20"}],"fact_type":"material_agreement"},{"claim_id":"e6524d17d64c092af7228c045ce7187b337146d9","claim":"Black Hawk Acquisition Corp entered into Registration Rights Agreement with the Sponsor (effective 2024-03-20).","evidence_excerpt":"● Registration Rights Agreement, dated March 20, 2024, by and between the Company and the Sponsor, a copy of which is filed as Exhibit","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/2000775/000182912624001885/0001829126-24-001885-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"entry"},{"label":"Counterparty","value":"the Sponsor"},{"label":"Effective","value":"2024-03-20"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}