Tesla and Space X CEO Elon Musk is facing allegations of insider trading in a proposed class-action suit filed by a group of investors, claiming that Musk used a variety of methods, including Twitter posts, paid online influencers, and high-profile public appearances, to manipulate the value of the meme-inspired crypto Dogecoin ($DOGE). Investors in the class action lawsuit argue that these actions, which they believe were taken at their expense, led to losses totaling billions of dollars.