{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-239022","form_type":"8-K","ticker":"BTC","cik":"0002015034","company_name":"Grayscale Bitcoin Mini Trust ETF","filed_at":"2025-10-14T23:59:59+00:00","discovered_at":"2026-05-14T18:02:41.317920+00:00","generated_at":"2026-05-17T03:59:47.161870+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Grayscale Bitcoin Mini Trust ETF: Simon Koster appointed Director, Matthew Kummell steps down","bullets":["Matthew Kummell stepped down as Director of GSO Intermediate Holdings Corporation (GSOIH) effective October 13, 2025.","Simon Koster appointed as Director of GSOIH; Koster is Chief Strategy Officer at Digital Currency Group (DCG).","Koster leads DCG's investment team managing portfolio of digital assets and over 250+ early-stage companies across 35+ nations.","Koster also serves as director of Foundry, Luno, Fortitude, and Yuma, all affiliates of Grayscale."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-239022","json":"https://secwatch.observer/filing/0001193125-25-239022.json","markdown":"https://secwatch.observer/filing/0001193125-25-239022.md","text":"https://secwatch.observer/filing/0001193125-25-239022.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2015034/000119312525239022/0001193125-25-239022-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2015034/000119312525239022/btc-20251013.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T03:59:47.161870+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}