ETHE GRAYSCALE ETHEREUM TRUST ETF Management Changes 8-K Filing 2025 - Management Change On April 9, 2025, Grayscale announced the appointment of Diana Zhang as the new COO, effective May 6, 2025, succeeding Hugh Ross who will assist in the transition until May 31, 2025.Get access to all SEC 8-K filings of the GRAYSCALE ETHEREUM TRUST ETF