Leading institutional holders of Ethereum include Bitmine Immersion Technologies with 5.8 million ETH ($11 billion) as of July 2026, BlackRock's iShares Ethereum Trust (ETHA) with 2.8 million ETH ($5.5 billion) as of July 2026, and Grayscale's ETHE with 1.13 million ETH under management as of September 2025.