Two insider trading cases in prediction markets were both proactively reported by Polymarket

Odaily Planet Daily News: The U.S. Department of Justice recently filed charges against Google software engineer Michele Spagnuolo, accusing him of using confidential internal Google information to trade in prediction markets on Polymarket, illegally profiting approximately $1.2 million.

Polymarket stated in a post on Platform X that Michele Spagnuolo's insider trading activities were flagged by its market integrity system. Furthermore, Polymarket proactively filed a criminal complaint with judicial authorities, which ultimately led to the successful arrest of Michele Spagnuolo. Polymarket claims that both insider trading cases resulting in arrests in prediction markets originated from criminal reports submitted by the platform.

Another prediction market insider trader arrested by the U.S. Department of Justice is Gannon Ken Van Dyke. As a U.S. military participant involved in the operation to capture Maduro, he used inside information to profit over $409,000 in the prediction market. He was arrested on April 23.