{"schema_version":"secwatch.filing_event.v1","accession":"0000950103-24-006877","form_type":"8-K","ticker":"ZCSH","cik":"0001720265","company_name":"Grayscale Zcash Trust (ZEC)","filed_at":"2024-05-20T23:59:59+00:00","discovered_at":"2026-05-14T18:03:19.729456+00:00","generated_at":"2026-06-01T12:56:54.898700+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Grayscale Zcash Trust sponsor appoints Peter Mintzberg as CEO, effective Aug 15","bullets":["Peter Mintzberg appointed CEO of Grayscale Investments, effective August 15, 2024; will join board.","Michael Sonnenshein steps down immediately; CFO Edward McGee to serve as interim principal executive officer.","Mintzberg joins from Goldman Sachs (Global Head of Strategy for Asset & Wealth Management); prior roles at BlackRock, Invesco.","Sonnenshein led Grayscale from $60M to ~$30B AUM and secured spot Bitcoin ETF uplisting.","CEO transition is planned; Mintzberg brings over 20 years of asset management experience."],"urls":{"canonical":"https://secwatch.observer/filing/0000950103-24-006877","json":"https://secwatch.observer/filing/0000950103-24-006877.json","markdown":"https://secwatch.observer/filing/0000950103-24-006877.md","text":"https://secwatch.observer/filing/0000950103-24-006877.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1720265/000095010324006877/0000950103-24-006877-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1720265/000095010324006877/dp211411_8k-zcsh.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-01T12:56:54.898700+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":"7f1a116e29","claim":"Michael Sonnenshein departed as Chief Executive Officer at Grayscale Zcash Trust (ZEC).","evidence_excerpt":"Mr. Mintzberg will succeed Michael Sonnenshein, the current Chief Executive Officer of Grayscale and the principal executive officer of the Company, who has decided to step down from his position, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1720265/000095010324006877/0000950103-24-006877-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"stepped down"},{"label":"Role","value":"Chief Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"b79219e888","claim":"Edward McGee was appointed as Interim Principal Executive Officer at Grayscale Zcash Trust (ZEC).","evidence_excerpt":"Mr. Edward McGee, the Chief Financial Officer of Grayscale and principal financial officer of the Company, will serve as principal executive officer on an interim basis until Mr. Mintzberg’s commencement date.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1720265/000095010324006877/0000950103-24-006877-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Interim Principal Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"cfc9ca3b55","claim":"Peter Mintzberg was appointed as Chief Executive Officer at Grayscale Zcash Trust (ZEC).","evidence_excerpt":"Grayscale Investments, LLC (“ Grayscale ”), the sponsor of Grayscale Zcash Trust (ZEC) (the “ Company ”), announced that it has approved the appointment of Peter Mintzberg to serve as Grayscale’s new Chief Executive Officer and the principal executive officer of the Company, and a member of the Board of Directors of Grayscale, effective August 15, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1720265/000095010324006877/0000950103-24-006877-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chief Executive Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}