The U.S. Department of Justice has seized more than $460 million in Robinhood stock as part of an investigation against the FTX exchange, according to Cointelegraph. According to the investigation, the funds are linked to the cryptocurrency exchange itself and its former CEO Sam Bankman-Fried. In federal court on Jan. 3, Bankman-Fried pleaded not guilty to eight charges, including wire fraud, securities fraud and violating campaign finance laws.