The US army soldier charged with winning $400,000 by using insider information to bet on the removal of the ousted Venezuelan president Nicolás Maduro pleaded not guilty to fraud charges on Tuesday. Gannon Ken Van Dyke, 38, entered the plea in US district judge Margaret Garnett’s courtroom in Manhattan. Van Dyke sported a shaved head and wore a black blazer, jeans and brown shoes as he arrived to the courtroom with his lawyers, Zach Intrater and Mark Geragos. Van Dyke was arrested on 23 April on a federal indictment charging him with placing $33,000 in bets on prediction market Polymarket between 27 December 2025 and 2 January 2026 that Maduro would soon be out of office and that US forces would soon enter Venezuela. Markets at the time assigned low probabilities to those events , leading to a big payout for Van Dyke, prosecutors said. The case marks the first time the US justice department has filed insider trading charges involving a prediction market.…