{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-23-072828","form_type":"8-K","ticker":"HZEN","cik":"0001748945","company_name":"Grayscale Horizen Trust (ZEN)","filed_at":"2023-12-26T23:59:59+00:00","discovered_at":"2026-05-14T18:03:30.301853+00:00","generated_at":"2026-06-07T07:25:43.093165+00:00","sec_items":["8.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Grayscale Horizen Trust sponsor board reshuffles: Silbert, Murphy out; Shifke as Chairman","bullets":["Barry Silbert and Mark Murphy resign from Grayscale Investments board effective Jan 1, 2024.","Mark Shifke appointed Chairman; Matthew Kummell and Edward McGee join board same date.","Shifke is DCG CFO; Kummell is DCG SVP Operations; McGee is Sponsor CFO.","New board consists of Shifke, Kummell, McGee, and Michael Sonnenshein."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-23-072828","json":"https://secwatch.observer/filing/0000950170-23-072828.json","markdown":"https://secwatch.observer/filing/0000950170-23-072828.md","text":"https://secwatch.observer/filing/0000950170-23-072828.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1748945/000095017023072828/0000950170-23-072828-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1748945/000095017023072828/hzen-20231226.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-07T07:25:43.093165+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"}