Kalshi announced on Wednesday that Artem Kaptur, the MrBeast employee, traded roughly $4,000 on markets related to Jimmy Donaldson’s videos. He had “near-perfect trading success” on bets with low odds by leveraging access to nonpublic information, Kalshi said.

The disclosure of the investigation’s results, a first for the company, comes amid prediction markets looking to gain a foothold in Hollywood. It’s largely viewed as an untapped source of monetization to drive engagement, and dealmakers are happy to take the money.

The Golden Globes became the first program this year to feature real-time odds for each award when it partnered with Polymarket. “By pairing cultural debate with market-based probabilities, we’re giving fans a new, more interactive way to follow the show as it unfolds,” said Polymarket founder and CEO Shayne Coplan in a statement.

Wagers on MrBeast are among several obscure bets people can make on the platform. They include what Donaldson will say in his next video (billion? car? Saudi Arabia?), the duration of his next upload and if he’ll donate to East Carolina University athletics programs. The nature of these kinds of trades, critics say, make Kalshi highly vulnerable to insider trading and manipulation. 

Kalshi said its surveillance systems flagged Artem’s statistically anomalous wins. At the same time, a number of users sent the company tips about unusual trading volume for those bets since the trading data is publicly available.