On Friday, a large number of shares of an exchange-traded fund run by ETF star Cathie Wood, known as ARK Invest, were sold. To be more specific, this fund sold over 115,000 shares of Tesla Inc. (NASDAQ: TSLA) on the day in question, as the fund's price had fallen by approximately 5 percent. It should be noted that the fund has experienced a significant decline over the past year.

The ARK Innovation ETF (NYSEARCA: ARK) was the entity that sold 119,256 shares of Tesla stock. At Friday's closing price, the transaction would have been valued at approximately $121 million. Despite the fact that this represents a small portion of the total holdings, every little bit helps. In the last year, the fund has lost 17 percent of its value.