FTX co-founder Sam Bankman-Fried is escorted out of the Magistrate's Court on December 21, 2022 in Nassau, Bahamas. Joe Raedle | Getty Images FTX co-founder Gary Wang and former Alameda Research co-CEO Caroline Ellison both pleaded guilty to federal charges in the Southern District of New York, U.S. Attorney Damian Williams said in a message Wednesday.