Investors are also increasingly concerned that his antics could hurt brand and sales of Tesla, the world's top electric carmaker which faces increasing competition.
"Elon abandoned Tesla and Tesla has no working CEO," KoGuan Leo, the third Largest individual shareholder of Tesla, who describes himself of Musk's "fanboy," tweeted on Wednesday.
Tesla shares traded down 1.4%, after falling as much as 3.2% to $155.88 per share, the lowest level since November 18, 2020.
Tesla shares slumped 55% so far this year, lagging the performances of GM (GM.N), Ford (F.N), Apple (AAPL.O) and Amazon (AMZN.O).
Goldman Sachs on Tuesday cut the price target for Tesla shares and lowered estimates for Tesla's deliveries and gross margins for the fourth quarter, reflecting softer supply and demand.