Cathie Wood's Ark Invest sold 151,903 shares of Robinhood on Wednesday, totaling $16.6 million in value. The transaction was executed through the firm's flagship ARKK ETF, according to the latest trade disclosure. The sale represents a significant reduction in the fund's position in the retail trading platform. Ark Invest regularly discloses its daily trading activity, providing transparency into portfolio adjustments made across its actively managed exchange-traded funds.