OpenAI fires employee for insider trading on prediction markets
Neutral impact
OpenAI fired an employee for suspected insider trading on Polymarket and Kalshi, using confidential information to place large, accurate bets on company events. On-chain analysis revealed suspicious patterns including new wallets with no history, large sums, and precise predictions on events like Sam Altman's 2023 return and ChatGPT browser release timing. The trader was identified by matching activity to employees with access to release dates.