BitMine Immersion Technologies has significantly increased its Ethereum holdings, now controlling over 3.03 million ETH, which accounts for 2.5% of the total Ethereum supply. This accumulation, valued at approximately $12.9 billion, was highlighted by blockchain analytics firm Lookonchain. Recent transfers of over 72,000 ETH, worth $281 million, from FalconX and BitGo to BitMine-linked wallets suggest a strategic accumulation effort. The move is part of a broader trend, with over 400,000 ETH moving from exchanges to cold wallets since early October. Institutional investors now hold more than 12.8 million ETH, representing over 10% of the total supply, underscoring the growing institutional interest in Ethereum.