Ark Invest, led by Cathie Wood, has expanded its holdings in Robinhood by purchasing 553,892 shares valued at approximately $39.43 million. The acquisition was distributed across several of Ark's funds: ARKK added 469,858 shares, ARKW acquired 55,939 shares, and ARKF increased its position by 28,095 shares. This move reflects Ark Invest's continued interest in the trading platform.