One of MrBeast‘s employees has been banned from the Kalshi betting platform for the next two years amid allegations of insider trading.

Artem Kaptur, who is listed as a visual effects artist for Prime Video’s Beast Games, has been fined by Kalshi and suspended for a two-year period.

NPR notes that Kaptur “traded around $4,000 on markets related to the streamer” and had a “near-perfect trading success” on bets with low odds. This led to suspicion on his wagers and an investigation was launched.

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Kaptur is facing a $20,000 fine and he can’t use the platform for the next two years.

“We investigated and found that the trader was employed as an editor for the streamer’s show and likely had access to material non-public information connected to his trading,” said Kalshi exec Robert DeNault.

Beast Industries said in a statement, “We have a longstanding policy in place against employees using proprietary company information in order to safeguard the highest standards and ethics throughout our organization.”

The winner of Beast Games season two was just crowned and over $11 million in prizes was handed out this year.