Andrew Left, the founder of Citron Research and one of Wall Street's most prominent activist short sellers, was found guilty of securities fraud by a federal jury in Los Angeles. The verdict, delivered June 1, 2026, covered 13 of 17 counts, including one charge of participating in a securities fraud scheme and 12 individual fraud counts.
Prosecutors said Left used social media and media appearances to make misleading statements about his stock positions. Between 2018 and 2023, he allegedly netted $16 million to $20 million by broadcasting a thesis, then closing his trade as the market reacted. The stocks involved included Nvidia, Tesla, Roku, Cronos Group, American Airlines, and Palantir.
Left plans to appeal, calling the conviction a free speech issue. His sentencing is set for August 31, 2026.
The case draws a sharp line between aggressive short-selling commentary and market manipulation. The implicit message from the Justice Department: you can share your opinion, but you cannot use your platform to trade against those listening.