Kalshi Fines and Suspends MrBeast Employee for Insider Trading

Katherine Doherty and Emily Nicolle

Updated Thu, February 26, 2026 at 5:43 AM GMT+9 3 min read

(Bloomberg) — Kalshi Inc. fined an employee of popular YouTube streamer MrBeast in one of the first public disciplinary actions related to insider trading in the fast-growing prediction market industry.

The betting platform said that it suspended Artem Kaptur for two years and fined him around $20,000, after he made around $5,000 placing bets last August and September related to what would happen on MrBeast videos, according to a notice posted on Kalshi’s website Wednesday.

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MrBeast, a 27-year-old whose real name is Jimmy Donaldson, broadcasts regular contests and stunts on his YouTube channel, which currently has more than 460 million subscribers.

Kaptur did not immediately respond to a message seeking comment. A representative for Beast Industries said it had already initiated its own investigation into the matter before hearing from Kalshi.

“We welcome Kalshi — and hopefully others in the space — also taking this issue seriously, but it only works if they are willing to communicate their findings, so we’re hopeful they’ll be more open to that in the future,” the representative said.

Kalshi currently has several live contracts related to MrBeast, including one tied to who will win the current season of Beast Games, a game show that airs on Amazon Prime.

Prediction markets like Kalshi have come under scrutiny for opening up the door to new kinds of insider trading because they make it possible to bet on the outcome of a wide array of public events, including elections, sports and even pre-recorded moments like MrBeast videos.

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One anonymous trader drew attention in January after placing well-timed and hugely profitable bets on the capture of Nicolás Maduro in Venezuela.

While there has been widespread speculation about suspicious trades on prediction markets, there have been essentially no public disciplinary actions until now.

In addition to the Kaptur case, Kalshi said Wednesday that it also fined and banned a former California candidate for governor, Kyle Langford, after he posted a video in which he said he had placed a trade on his own candidacy. Langford dropped his bid to be governor and is now running for Congress. Kalshi said Langford bet around $250.

“As a candidate, Langford qualified as a direct decision maker for this contract and had direct influence on the outcome of the underlying event,” Kalshi said in the disciplinary notice.

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Langford did not immediately respond to a request for comment.

Kalshi said it reported the Kaptur and Langford cases to the Commodity Futures Trading Commission, which oversees prediction market exchanges. Several states have said the exchanges are offering a form of illegal gambling, but the new head of the CFTC has challenged the states and said the CFTC will fight to serve as the primary regulator of the nascent industry.

Some fans of these markets have argued that they are valuable precisely because they offer an incentive for people with privileged information to put their money on the line and improve the market signals available to the broader public.

Kalshi, though, has said that it is going to crack down on insider trading. Earlier this year, Kalshi formed an independent surveillance audit committee, which it said will put out quarterly reports of statistics on flagged trades, open and closed investigations, and cases referred to the government for further enforcement.

The company said it’s opened over 200 investigations and frozen a number of accounts over insider trading concerns in the past year. Out of the investigations, more than a dozen but fewer than 20 have become active cases, according to a company spokesperson.

“In both of these cases, our systems flagged the trades and our surveillance team froze the traders’ accounts,” Bobby DeNault, head of enforcement, wrote in a post on Kalshi’s website. “Neither trader withdrew any profits. These penalties are not indicative of future penalties — everything depends on the case, including amount traded and rules violated.”

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