A video editor working for YouTube star MrBeast has been suspended and fined after a prediction market platform accused him of trading on insider knowledge connected to the creator’s content.
Kalshi confirmed it froze the account of Artem Kaptur, identified in regulatory filings as an editor for MrBeast, whose legal name is James Donaldson. The platform said Kaptur placed around $4,000 in trades tied to markets involving the popular YouTuber.
According to company officials, internal investigators flagged the activity after noticing what they described as “near-perfect trading success” on low-odds bets related to MrBeast’s videos. The pattern triggered a probe into whether confidential information had been used to gain an unfair advantage.
“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 Robert DeNault, Kalshi’s head of enforcement.
Prediction markets allow users to bet on outcomes ranging from political races to entertainment events. On Kalshi, users wager on everything from what public figures might say in upcoming appearances to subscriber milestones and even personal life events.
Kalshi said it immediately froze the account in question, preventing any withdrawal of profits. The company imposed a $20,000 fine and a two-year suspension from the platform. It also reported the matter to the Commodity Futures Trading Commission, the federal regulator overseeing prediction markets.
In a statement, a spokesperson for Beast Industries said the company has “no tolerance” for insider trading.
“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 spokesperson said, adding that staff are prohibited from trading on markets related to MrBeast.
The CFTC indicated the trades “potentially violated” federal laws governing the misuse of confidential information in commodity markets.
Kalshi also revealed a separate case involving Kyle Langford, a former Republican candidate in California’s governor’s race. Langford had publicly posted that he bet on himself to win and encouraged others to do the same.
In a public legal notice, Kalshi said that as a candidate, Langford was “a direct decision maker” in the relevant market, making the trades a breach of internal anti-manipulation rules and potentially a federal offense.
Kalshi banned Langford from the platform for five years and fined him $2,200.
“As a candidate in a race, you can (and probably should) follow and use Kalshi’s market forecast, but you should not trade on it,” DeNault said.
Langford did not respond to requests for comment.
Prediction markets have surged in popularity in recent years, particularly during Donald Trump’s second term. Platforms such as Kalshi and Polymarket allow users to place bets on elections, geopolitical events, economic indicators and even weather patterns.
Unlike traditional gambling sites, these platforms operate under a regulatory framework that classifies contracts as financial futures, placing them under the oversight of the CFTC rather than state gambling authorities.
Under the previous administration, regulators pushed back against the expansion of such markets, arguing they lacked clear public interest value and posed risks of insider manipulation. More recently, federal scrutiny has eased, and the number of active prediction markets has ballooned from a few dozen annually to more than 200,000.
The rapid growth has also intensified concerns about insider trading. In January, a trader reportedly made $400,000 by correctly predicting the capture of Venezuelan leader Nicolás Maduro before public confirmation. Israeli authorities have also arrested individuals suspected of using classified information to place bets on military developments.
Kalshi said it has opened 200 insider trading investigations over the past year, with 12 still ongoing. The company noted that while internal monitoring systems exist, no exchange is immune from misconduct.
“No system is perfect. No financial exchange is immune from bad actors. Not stock exchanges, not banks, not prediction markets,” DeNault said. “We’re committed to deterring and finding the bad actors, manipulators, and those who willingly cheat.”
The fines collected in the two recent cases will be donated to a nonprofit organization focused on educating consumers about derivatives markets, Kalshi said.
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