{"schema_version":"secwatch.filing_event.v1","accession":"0001829126-25-004234","form_type":"8-K","ticker":"BKHA","cik":"0002000775","company_name":"Black Hawk Acquisition Corp","filed_at":"2025-06-04T23:59:59+00:00","discovered_at":"2026-05-14T18:02:50.666039+00:00","generated_at":"2026-05-20T00:24:43.554505+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Black Hawk Acquisition reports death of director Brandon Miller; appoints committee chairs","bullets":["Brandon Miller, board member and Audit Committee chair, died on April 29, 2025.","Daniel M. McCabe appointed Audit Committee Chair; resigned as Compensation Committee Chair.","Terry W. Protto appointed Compensation Committee Chair to replace McCabe.","No family relationships or material transactions disclosed for McCabe or Protto."],"urls":{"canonical":"https://secwatch.observer/filing/0001829126-25-004234","json":"https://secwatch.observer/filing/0001829126-25-004234.json","markdown":"https://secwatch.observer/filing/0001829126-25-004234.md","text":"https://secwatch.observer/filing/0001829126-25-004234.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2000775/000182912625004234/0001829126-25-004234-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2000775/000182912625004234/blackhawk_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-20T00:24:43.554505+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":"3a00e80494","claim":"Brandon Miller departed as Member of the Board of Directors and Chairperson of the Audit Committee at Black Hawk Acquisition Corp.","evidence_excerpt":"On April 29, 2025, Black Hawk Acquisition Corporation (the “Company”) reported the death of Brandon Miller, a member of the Company’s board of directors (the “Board”) and the Chairperson of the Audit Committee.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/2000775/000182912625004234/0001829126-25-004234-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Role","value":"Member of the Board of Directors and Chairperson of the Audit Committee"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}