On Wednesday, Cathie Wood-led Ark Invest made a significant move in the stock market, notably increasing its stake in Tesla Inc (NASDAQ:TSLA). On Wednesday, Ark Invest purchased a total of 111,387 shares of the Elon Musk-led electric vehicle company. The purchase was made through its flagship ARK Innovation ETF (NYSE:ARKK) and ARK Next Generation Internet ETF (NYSE:ARKW). For the day, Tesla shares closed 3.92% lower at $247.14.