Ark Invest CEO Cathie Wood has made a name for herself as a growth-focused investor and helped deliver huge returns for exchange-traded funds (ETF) managed by her company when the market was in a bullish phase. Thanks to the explosive performance posted by Wood's company's funds, some investors pay close attention to the CEO's trading activity. Ark Invest notably sold 38,338 shares of Palantir ( PLTR 1.11% ) stock on Nov. 3 -- the same day the artificial intelligence (AI) leader published its third-quarter results. Wood sold out of Palantir stock ahead of its Q3 release and subsequent valuation dip. While Ark Invest ... (full story)