Highest-materiality recent filing
Grayscale Horizen Trust changes ZEN valuation benchmark to CoinDesk Benchmark Extended Rate
Effective Sept 1, 2026, Trust switches NAV valuation from CoinDesk Horizen Reference Rate to CoinDesk Horizen Benchmark Extended Rate.
Grayscale Horizen Trust sponsor appoints co-CFOs as Edward McGee steps down
Edward McGee steps down as CFO and Principal Financial and Accounting Officer effective July 2, 2026, for personal reasons.
Fiscal year changed from Sept 30 to Dec 31, effective for FY beginning Jan 1, 2025; transition report on Form 10-KT for Oct-Dec 2025 to be filed.
Grayscale Horizen Trust disclaims endorsement of third-party content from X cashtags
Filing warns investors that X automatically converts $HZEN cashtags into third-party content pages.
Grayscale Horizen Trust sponsor reorganized internally; no operational impact
On Oct 22, 2025, GSOIH transferred membership units in GSO to new entity Grayscale Investments, which became sole managing member of sponsor.
Grayscale parent GSOIH: Matthew Kummell resigns, Simon Koster appointed director
Matthew Kummell stepped down as director of GSOIH, the sole managing member of Grayscale Operating, effective Oct 13, 2025.
Barry Silbert appointed Chairman of Grayscale Horizen Trust Board; Shifke steps down as Chairman
Barry Silbert, founder of DCG, appointed Director and Chairman of the Board effective August 4, 2025.
Migration from Horizen mainnet to Base blockchain (Layer-2) effective July 23, 2025.
Grayscale appoints Diana Zhang as new COO; prior COO Hugh Ross to depart by May 31
Diana Zhang appointed Chief Operating Officer of Grayscale Operating, LLC effective May 6, 2025.
Grayscale Horizen Trust issues 154,900 shares to accredited investors, raising $110,066
Issued 154,900 shares at NAV per share to accredited investors in exemption under Rule 506(c).
Grayscale Horizen Trust (ZEN) issues 125,400 Shares for $105,134 in private placement
Issued 125,400 Shares to accredited investors at NAV-based prices via Rule 506(c).
Grayscale Horizen Trust issued 238,300 Shares at NAV for $260,185 to accredited investors
Issued 238,300 Shares at NAV-based prices to accredited investors under Rule 506(c).
Grayscale Horizen Trust issues 350,100 shares for $357k in ZEN to accredited investors
Issued 350,100 shares at NAV-based prices under Rule 506(c) exemption to accredited investors.
Grayscale Horizen Trust issues 108,900 shares in private placement for $240,402
Shares issued to accredited investors under Rule 506(c); prices based on NAV per share.
Grayscale Horizen Trust sponsor reorganized; GSO merges with GSI, then assigns contracts to GSIS
Grayscale Investments, LLC merged into Grayscale Operating, LLC on Jan 1, 2025; GSO is surviving entity.
Grayscale Horizen Trust issues 3.57M shares in private placement, raising $4.71M
Issued 3,565,200 shares at NAV-based prices to accredited investors under Rule 506(c), raising $4,712,299.
Grayscale Horizen Trust sponsor CEO transition: Peter Mintzberg to succeed Sonnenshein
Peter Mintzberg appointed CEO of Grayscale Investments, effective August 15, 2024; Michael Sonnenshein steps down immediately.
Grayscale Horizen Trust amends definition of 'Business Day' in Trust Agreement
Amendment changes Business Day from bank closure to national securities exchange closure in NYC.
Grayscale Horizen Trust replacing auditor; Marcum to exit after FY2024, KPMG to begin FY2025
Audit Committee dismissed Marcum LLP as independent auditor, effective after completion of FY2024 audit (Sep 30, 2024).
Grayscale Horizen Trust sponsor board reshuffles: Silbert, Murphy out; Shifke as Chairman
Barry Silbert and Mark Murphy resign from Grayscale Investments board effective Jan 1, 2024.
Grayscale Horizen Trust Reference Rate loses Binance.US; switches to Coin Metrics Real-Time Rate
CoinDesk Indices removed Binance.US from the Horizen Reference Rate effective June 16, 2023.
Grayscale Horizen Trust extends reference rate license with CoinDesk Indices to Feb 2025
Amendment dated June 20, 2023 extends Reference Rate License Agreement term from Feb 29, 2024 to Feb 28, 2025.
Grayscale Horizen Trust removes Bittrex from reference rate; now uses Coinbase Pro and Binance.US
Bittrex removed from CoinDesk Horizen Reference Rate due to ceasing U.S. customer service.
Grayscale Horizen Trust adds Bittrex to reference rate constituent exchanges
Effective April 4, 2023, Bittrex added to CoinDesk Horizen Reference Rate.
CoinDesk removes Bittrex from Horizen Trust reference rate due to low liquidity
Bittrex removed from CoinDesk Horizen Reference Rate effective Jan 4, 2023, for failing minimum liquidity requirement.
Grayscale Horizen Trust Sponsor appoints Hugh Ross to Audit Committee, replaces Silbert
Hugh Ross, COO of Grayscale Investments, appointed to Audit Committee effective Nov 4, 2022.
Grayscale Horizen Trust shares now subject to 6-month holding period under Rule 144
Minimum holding period for Shares purchased from Trust reduced to 6 months as of Oct 3, 2022, due to 90 days of Exchange Act reporting status.
Effective Oct 3, 2022, Grayscale Securities (wholly-owned affiliate of Sponsor) becomes distributor, marketer, and sole Authorized Participant for ZEN.
Grayscale Horizen Trust changes auditor to Marcum after Friedman practice combination
Audit committee dismissed Friedman LLP and engaged Marcum LLP as independent registered public accounting firm, effective September 27, 2022.
the appointment of Kathryn Masci, Senior Vice President, Finance, and Daniel Plourde, Senior Vice President, Finance, to serve as Co-Chief Financial Officers of Grayscale Investments Sponsors, LLC on an interim basis, effective July 2, 2026
Mr. McGee is stepping down for personal reasons and not due to any disagreement with the Company or any matter relating to Grayscale’s operations, policies or practices.
the appointment of Kathryn Masci, Senior Vice President, Finance, and Daniel Plourde, Senior Vice President, Finance, to serve as Co-Chief Financial Officers of Grayscale Investments Sponsors, LLC on an interim basis, effective July 2, 2026
the appointment of Ms. Masci as a member of the Board of Managers of Grayscale Investments Sponsors, LLC.
On May 20, 2024, Grayscale Investments, LLC (“Grayscale”), the sponsor of Grayscale Horizen Trust (ZEN) (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.
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.
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.
Max materiality 0.70 · Median 0.30 · Most common event other_material