The owner and CEO of SpaceX andTesla made gestures during a conversation at the E3 gaming convention in Los Angeles, June 13, 2019.
The shares of the company fell more than 3% in early trading after it was reported that the SEC is investigating the company.
The SEC launched a probe after receiving a complaint from a former employee of the company who alleged that the company failed to properly notify its shareholders and the public of fire risks associated with its solar panel systems.
A request for comment from the SEC was not immediately responded to.
The news of the SEC probe sent the shares of the electric car maker down more than 20% from their recent high.
Steven Henkes, a former employee ofTesla, filed a complaint with the SEC. He was dismissed from his job as a solar field quality manager after he raised safety concerns.
CNBC previously reported that the U.S. Consumer Product Safety Commission is investigating the automaker after Henkes filed a complaint.
Musk sells more shares to pay taxes.
