{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-239046","form_type":"8-K","ticker":"ETCG","cik":"0001705181","company_name":"Grayscale Ethereum Classic Trust (ETC)","filed_at":"2025-10-14T23:59:59+00:00","discovered_at":"2026-05-14T18:02:40.210789+00:00","generated_at":"2026-05-17T03:54:55.905133+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Grayscale Ethereum Classic Trust's sponsor board changes: Kummell out, Koster in","bullets":["Matthew Kummell stepped down as a Director of GSO Intermediate Holdings Corp., the top entity in sponsor's governance chain.","Simon Koster appointed as Director of GSOIH; he is CSO at Digital Currency Group, Inc. (DCG).","Koster also serves on boards of Foundry, Luno, Fortitude, and Yuma, all Grayscale affiliates.","Change effective October 13, 2025; no impact on trust operations or financials disclosed."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-239046","json":"https://secwatch.observer/filing/0001193125-25-239046.json","markdown":"https://secwatch.observer/filing/0001193125-25-239046.md","text":"https://secwatch.observer/filing/0001193125-25-239046.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1705181/000119312525239046/0001193125-25-239046-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1705181/000119312525239046/etcg-20251013.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T03:54:55.905133+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"}