Bitmine, led by Tom Lee, has overtaken BlackRock in Ethereum holdings after acquiring 63,123 ETH worth $174 million this week. Bitmine's total Ethereum holdings now stand at 3,623,002 ETH, valued at approximately $9.96 billion. In contrast, BlackRock reduced its Ethereum holdings by 43,237 ETH, equivalent to $119 million, bringing its total to 3,604,966 ETH, valued at $9.91 billion.