Ark Invest, led by Cathie Wood, has expanded its investment portfolio by acquiring additional shares in three companies. According to Ark Invest Tracker, the firm purchased 188,941 shares of Circle, valued at approximately $15.54 million. Additionally, Ark Invest acquired 242,347 shares of BitMine, worth around $8.84 million, and 177,480 shares of Bullish, totaling about $6.49 million. This move reflects Ark Invest's continued interest in the cryptocurrency and blockchain sectors.