Kalshi fined a MrBeast editor for insider trading on markets related to the YouTube star Kalshi MrBeast Polymarket Technology Kalshi fined a MrBeast editor for insider trading on markets related to the YouTube star Amanda Silberling February 25, 2026 Kalshi fined the MrBeast editor, Artem Kaptur, for over $20,000. Read More Read more about Kalshi fined a MrBeast editor for insider trading on markets related to the YouTube star