Cathie Wood's Ark Invest has expanded its ARKK ETF by acquiring 28,315 shares of Coinbase, valued at $7.5 million, 42,434 shares of Bullish, worth $1.8 million, and 1,951 shares of Robinhood, valued at $245,000. This strategic move, executed on December 3, 2025, reflects Ark Invest's continued interest in the cryptocurrency and fintech sectors.