Ark Invest, led by Cathie Wood, has expanded its portfolio with significant investments in Roblox and Alibaba. According to Ark Invest Tracker, the firm purchased 176,884 shares of Roblox, valued at approximately $11.92 million, and 19,583 shares of Alibaba, worth around $2.6 million, on March 4. This move underscores Ark Invest's continued interest in diversifying its holdings across technology and e-commerce sectors.