Material Event (Form 8-K)

Item 8.01. Other Events.

CoinDesk Indices, Inc. (the "Index Provider") announced a change to the Digital Asset Trading Platforms used to derive the Index Price (collectively, "Constituent Trading Platforms") for Grayscale Ethereum Mini Trust ETF (the "Trust"). Effective December 21, 2025, the Index Provider added Bitstamp by Robinhood ("Bitstamp") to the CoinDesk Ether Price Index (ETX) (the "Index") due to the trading platform meeting the Index Provider's minimum liquidity requirement, and did not remove any Constituent Trading Platforms as part of its scheduled quarterly review. As of the date of this current report, the Constituent Trading Platforms included in the Index are Coinbase, Kraken, Crypto.com, LMAX Digital, Gemini, and Bitstamp.

The Index Provider may change the trading venues that are used to calculate the Index Price, or otherwise change the way in which an Index Price is calculated, at any time. The Index Provider has scheduled quarterly reviews, in which it may add or remove Constituent Trading Platforms that satisfy or fail the criteria described in "Item 1. Business-Overview of the Ethereum Industry and Market-Ether Value-The Index and the Index Price" in the Trust's Annual Report on Form 10-K for the period ended December 31, 2024, as filed with the Securities and Exchange Commission on February 27, 2025.