Kalshi uncovers insider trading, MrBeast employee fined $20,000 and banned for 2 years, politicians betting on their own election results also heavily penalized.
The prediction market platform Kalshi, regulated by the U.S. Commodity Futures Trading Commission (CFTC), announced on Wednesday that it has completed disciplinary actions on two cases involving insider trading. One of the violators was identified as Artem Kaptur, a visual effects editor affiliated with the globally famous YouTuber MrBeast (James Donaldson).
According to Kalshi’s investigation, Artem Kaptur, between August and September 2025, used his position to access unreleased program content and traded approximately $4,000 in prediction markets related to MrBeast.
Kalshi’s compliance monitoring system detected highly unusual trading performance from Kaptur, showing an “almost perfect” win rate across multiple low-probability markets. The platform noted that this statistical anomaly triggered internal alerts, and with assistance from other users, confirmed his employment and identified that he possessed material non-public information. As a result, Kalshi imposed a two-year ban and fined approximately $20,000.
MrBeast’s company, Beast Industries, issued a statement saying the company maintains a zero-tolerance policy toward employees or participants using insider information. An independent investigation has been launched, and they also called on Kalshi to be more transparent in future communications about investigation results.
In addition to the influencer case, another incident involved former California gubernatorial candidate Kyle Langford. The 24-year-old politician bet about $200 on his own election prospects on the Kalshi platform last year and publicly posted a video on social media platform X showing his betting activity.
Although the account ultimately did not profit, Kalshi determined that this action severely violated rules prohibiting participants from betting on events related to themselves. Kyle Langford was subsequently banned from the platform for five years and fined $2,000, ten times his betting amount. He is currently running for Congress in California’s 26th district but has not yet responded publicly to the disciplinary action.
Image source: X/@KyleLangfordCA Former California gubernatorial candidate Kyle Langford betting on his own election
Kalshi CEO Tarek Mansour emphasized that the platform is committed to combating market manipulation and insider trading. Currently, Kalshi has investigated over 200 suspected violations and frozen multiple flagged accounts, with more than ten cases under active investigation.
To further enhance market surveillance, Kalshi established a Monitoring and Audit Committee this month and partnered with cryptocurrency trading monitoring platform Solidus Labs to more effectively identify, investigate, and address market abuse. Tarek Mansour stated that Kalshi’s regulatory standards are aligned with major financial institutions like the NYSE and Nasdaq, and all collected fines will be donated to non-profit organizations dedicated to financial derivatives market education.
As prediction markets gain popularity during the 2024 election cycle and into 2025, regulatory pressure is increasing. CFTC Chairman Mike Selig praised Kalshi’s enforcement actions and reiterated that exchanges are the first line of defense against insider trading in prediction markets. He issued a stern warning on social media, stating that the CFTC has established a Prediction Market Advisory Committee to work with industry stakeholders to track insider traders.
Image source: X/@ChairmanSelig CFTC Chairman Mike Selig affirms Kalshi’s enforcement actions
Mike Selig emphasized: “If anyone attempts manipulation, fraud, or insider trading, we will find you and take action.”
Legislation is also actively responding to these emerging risks. Last month, controversy arose when Polymarket users made accurate bets on the timing of the Venezuelan president Nicolás Maduro’s detention by the U.S. military in Caracas, earning over $400,000 before the event. This sparked congressional concern over leaks of insider information.
Democratic Congressman Ritchie Torres has proposed a bill to ban federal elected officials, political appointees, and executive branch employees from participating in prediction markets related to government policies, actions, or political outcomes. Kalshi’s CEO expressed support for the bill, though he acknowledged in interviews that defining insider trading in ambiguous scenarios—such as information conveyed during Super Bowl halftime shows—remains challenging. The platform will continue working with legislators to improve the regulatory framework for prediction markets, ensuring fairness and transparency.
Further reading
Venezuelan president detained! Polymarket users bet ahead and earn $400,000, U.S. Congress responds
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