The SEC filed a lawsuit against Elon Musk on Tuesday, alleging the billionaire committed securities fraud in 2022 by failing to disclose he had amassed an active stake in Twitter, a secrecy that allowed him to buy shares at "artificially low prices." Musk, who is also CEO of Tesla and SpaceX, purchased Twitter for $44 billion in late 2022 and changed the name to X the following year. Prior to the acquisition, he'd built up a position in the company of greater than 5%, which would've required disclosing his holdings to the public within 10 calendar days of reaching that threshold.