Morgan Stanley and Major Institutions Increase Bitmine Holdings Despite Stock Decline

Leading Wall Street firms expanded their positions in Bitmine Immersion Technologies (BMNR) during the fourth quarter of 2025, even as the broader crypto market faced heavy selling pressure and the company’s stock price declined sharply.

Morgan Stanley, the largest reported shareholder raised its stake by approximately 26% to more than 12.1 million shares, valued at around $331 million at the end of the quarter, according to its latest regulatory filing. ARK Investment Management also increased its holdings by roughly 27%, bringing its position to over 9.4 million shares worth about $256 million.

Other major financial institutions followed suit. BlackRock significantly expanded its position, while Goldman Sachs, Vanguard and Bank of America also reported notable increases in BMNR exposure during the same period.

According to filings compiled by crypto investor Collin;

Bitmine Stock Slides 48% as Ether Treasury Grows

The accumulation occurred despite BMNR shares falling about 48% in the fourth quarter and roughly 60% over the past six months, recently trading near $19.90 in premarket activity.

Bitmine remains the largest corporate holder of Ether, with approximately 4.37 million ETH valued near $8.69 billion. The company recently acquired an additional 45,759 ETH for around $260 million, reinforcing its treasury strategy even as market volatility persists.

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