Prediction ‘Market’ Kalshi Accuses MrBeast Editor of Insider Trading

Bobby Allyn, reporting for NPR:

An editor who works for YouTube’s biggest creator, MrBeast, has been suspended from the prediction market platform Kalshi and reported to federal regulators for insider trading, Kalshi officials said on Wednesday. It’s the first time the company has publicly revealed the results of an investigation into market manipulation on the popular app.

The MrBeast employee, who Kalshi identified as Artem Kaptur in regulatory filings, traded around $4,000 on markets related to the streamer, the company said. Kalshi investigators discovered that Kaptur had “near-perfect trading success” on bets about the YouTuber’s videos with low odds, making the wagers appear suspicious, according to company officials.

Call these things what they are — prediction casinos, not prediction markets — and the problems come into focus.

★ Thursday, 26 February 2026