TLDR
- Cathie Wood’s ARK Invest bought $22.8 million worth of BitMine Immersion Technologies shares across three funds on July 28, 2025
- ARK purchased $35.2 million in Alphabet stock and $4.2 million in AMD shares as part of strategic portfolio adjustments
- The investment firm sold positions in crypto-related stocks including $7.1 million in Coinbase, $12.5 million in Robinhood, and $15 million in Block Inc
- BitMine holds 625,000 ETH worth $2.35 billion and announced a $1 billion stock repurchase program on July 29
- ARK has previously invested $182 million in BitMine, with Wood calling it a “vote of confidence” in the Ethereum treasury company
Cathie Wood’s ARK Invest continued its buying spree of BitMine Immersion Technologies on July 28, 2025, purchasing an additional $22.8 million worth of shares. The investment firm acquired 572,853 BitMine shares across its ARKK, ARKW, and ARKF exchange-traded funds.
This latest purchase adds to ARK’s previous $182 million investment in the Ethereum treasury company. Wood has publicly described her investment in BitMine as a “vote of confidence” in the firm’s strategy.
BitMine operates as the largest Ethereum treasury company, holding 625,000 ETH tokens valued at approximately $2.35 billion. The company announced a $1 billion stock repurchase program on July 29, 2025.
Fundstrat’s Tom Lee recently joined BitMine’s Board of Directors as Chairman. Lee has expressed bullish views on Ethereum and supports the firm’s goal of accumulating 5% of all ETH tokens.
While building its BitMine position, ARK simultaneously reduced holdings in other crypto-related companies. The firm sold $7.1 million worth of Coinbase shares through its ARKW fund on the same day.
Portfolio Reshuffling Continues
ARK also divested $12.5 million in Robinhood Markets shares across its ARKW and ARKF funds. The trading platform offers both stock and cryptocurrency trading services to retail investors.
The investment firm sold an additional $15 million worth of Block Inc shares. Block, formerly known as Square, operates several Bitcoin-focused products under founder Jack Dorsey’s leadership.
Despite these sales, ARK maintains substantial holdings in all three companies. The divestments appear to represent portfolio rebalancing rather than complete exits from these positions.
Stock performance varied following the trading activity. Robinhood shares rose modestly to close at $106.77 on July 28.
Coinbase stock fell nearly 4% to close at $379.49. Block shares declined less than 1% to finish at $80.57.
Tech Sector Investments
Beyond crypto-related trades, ARK made its largest dollar-value purchase in Alphabet stock. The firm bought 181,640 shares through its ARKW fund for $35.2 million.
ARK also increased its semiconductor exposure by purchasing 25,155 shares of Advanced Micro Devices. The AMD purchase totaled $4.2 million across the ARKQ and ARKX funds.
BitMine shares experienced volatility despite ARK’s continued investment. The stock dropped as much as 15% to close at $35.11 on July 28.
ARK’s trading activity reflects ongoing portfolio adjustments as Wood repositions the funds across technology and biotech sectors. The firm continues to monitor market conditions while building positions in companies aligned with its investment thesis.
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