OpenAI fired an employee for insider trading on prediction markets like Polymarket; Unusual Whales has flagged 77 suspected insider trades around OpenAI events
Prediction: This plus the two other enforcement actions taken by Kalshi this week will be the first of many insider trading cases for prediction markets
Like the MrBeast case, this style of enforcement is straightforward: an employee was sloppy or brazen about using company info for gambling. But who decides what is “material non-public information” outside the context of a company? or when the person betting isn't an employee?