Grayscale CoinDesk Crypto 5 ETF - Form 8-K Filing Summary

This Form 8-K filing reports a change in the Digital Asset Trading Platforms used by CoinDesk Indices, Inc. to calculate the Index Price for the Grayscale CoinDesk Crypto 5 ETF. Effective May 19, 2026, new trading platforms including OSL, Bybit, and Gemini were added for calculating Index Prices of Bitcoin, Ether, SOL, and BNB. No platforms were removed during the monthly review. The Index Provider reserves the right to change these trading venues and calculation methods in the future, with scheduled monthly reviews to assess platform inclusion criteria.