{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-25-101660","form_type":"8-K","ticker":"HZEN","cik":"0001748945","company_name":"Grayscale Horizen Trust (ZEN)","filed_at":"2025-08-04T23:59:59+00:00","discovered_at":"2026-05-14T18:02:44.868347+00:00","generated_at":"2026-05-17T21:32:04.614513+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Barry Silbert appointed Chairman of Grayscale Horizen Trust Board; Shifke steps down as Chairman","bullets":["Barry Silbert, founder of DCG, appointed Director and Chairman of the Board effective August 4, 2025.","Mark Shifke steps down as Chairman but remains a Director.","Grayscale considering further board expansion with independent directors.","Sponsor also hired four senior executives (COO, CMO, CCO, CHRO) from Bridgewater, Apollo, Goldman Sachs, Citadel.","Grayscale manages over $35B in AUM across three dozen products including Bitcoin and Ethereum ETFs."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-25-101660","json":"https://secwatch.observer/filing/0000950170-25-101660.json","markdown":"https://secwatch.observer/filing/0000950170-25-101660.md","text":"https://secwatch.observer/filing/0000950170-25-101660.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1748945/000095017025101660/0000950170-25-101660-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1748945/000095017025101660/hzen-20250804.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T21:32:04.614513+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"}