Google engineer faces federal charge for trading on Polymarket
The first high-profile case of misuse of confidential information in a prediction market has just landed in U.S. federal courts and promises to stir up the regulatory debate over Polymarket across the Americas. Michele Spagnuolo, a security engineer at Google, was accused by the Department of Justice of using internal company data to build a near-perfect betting record on Polymarket, an operation that allegedly netted him over $1.2 million in profits. The criminal complaint was unsealed on May 27 in New York and opened a front that Brazilian, European, and Latin American regulators had been anticipating for months.
According to the complaint, Spagnuolo leveraged his access to an internal Google tool to consult data on the fastest-growing searches of the current year, weeks before the company published its official Year in Search 2025 report. With this information in hand, he opened positions in at least 23 different Polymarket markets under the username AlphaRaccoon, betting on which celebrities and personalities would end up among the most searched on Google. Prosecutors allege that the employee misappropriated confidential and valuable non-public information and used it to place a series of Google-related bets on a prediction market platform.
The D4vd Case and the Near-Perfect Record
The most striking bet, according to the file, was the one the engineer placed on the singer known as D4vd. When Spagnuolo opened a position in favor of D4vd finishing as the number one person in Google's global search ranking for 2025, the Polymarket market assigned him a probability close to zero. The prediction turned out to be correct and yielded an extraordinary return. The pattern was repeated in other markets linked to the Year in Search, where the employee allegedly operated with information that the company had not yet made public. The total accumulated profits through the AlphaRaccoon user climbed to $1.2 million, a volume that caught the attention of authorities and triggered the investigation.
A Signal for Prediction Market Regulators
The case comes at a critical time for the prediction market ecosystem. The European Commission has just opened a public consultation to define how to regulate platforms like Polymarket and Kalshi, and in Brazil, Congressman Márcio Marinho presented Bill 2.651/2026, which proposes a specific framework, with mandatory federal authorization, anti-money laundering mechanisms, and shared supervision between the Secretariat of Prizes and Betting, the Securities and Exchange Commission, and the Central Bank. Argentina and Mexico have begun discussing the issue in legislative committees, while Colombia and Chile are closely following the debate. The accusation against the Google engineer becomes the first documented case of insider trading in these markets to escalate to U.S. federal courts, and provides a concrete argument for those calling for tougher controls on the segment.
The Dilemma of the Nature of Prediction Markets
The case also rekindles a technical debate that has been escalating in the industry. Are prediction markets a form of fixed-odds gambling that needs licensing under betting regimes, or are they financial instruments that should be regulated under securities law? Polymarket states in its terms of use that it does not facilitate insider trading and prohibits users from operating with non-public data, a clause that the New York prosecutor's office has now scrutinized. The complaint documents how Spagnuolo allegedly violated this contractual framework while simultaneously breaching confidentiality obligations with his employer, a combination that opens the door to parallel civil litigation.
For Latin America, the case serves as a clear signal. Brazilian and European regulators have been pointing out that the accelerated growth of Polymarket and Kalshi needs clear rules before the problem escalates. The complaint against the Google engineer shows that the risk of manipulation with confidential information is concrete and not an academic hypothesis. In a regional scenario where Brazil has just enabled its fixed-odds betting regime, Peru is finalizing the implementation of its licensing system, and Colombia is consolidating its model, the treatment that each country gives to prediction markets appears as one of the next major definitions on the regulatory agenda for digital gambling in Latin America.
Tags: Polymarket, LatAm prediction markets, Polymarket insider trading, prediction market regulation, Google, Department of Justice