Ark Invest, the investment management firm led by Cathie Wood, sold 5,646 shares of Coinbase (COIN) worth $1.76 million through its ARK Innovation ETF (ARKK) on December 17 (local time). The sale was part of ARKK's broader portfolio adjustments, which also included purchases of Tesla and Zoom shares. Coinbase is a cryptocurrency exchange that allows users to buy, sell, and trade digital currencies. The company has benefited from the recent surge in interest in cryptocurrencies, but its share price has been volatile in recent months. Ark Invest's sale of Coinbase shares suggests that the firm is taking a more cautious stance on the cryptocurrency market.