Key Points:
- Federal prosecutors unsealed charges against a Google engineer for allegedly using confidential search data to place bets on Polymarket.
- Using his internal access, the engineer allegedly predicted the “Year in Search” rankings, netting over $1.2 million in trading profits.
- This marks the second known federal prosecution targeting insider trading on decentralized, blockchain-based prediction markets.
- The suspect, Michele Spagnuolo, operated under the pseudonym “AlphaRaccoon” and was released on a $2.25 million bond.
Federal prosecutors have arrested and charged a senior Google software engineer for allegedly running a highly sophisticated, $1.2 million insider trading scheme on the decentralized prediction market platform Polymarket. The U.S. Attorney for the Southern District of New York, Jay Clayton, unsealed the criminal complaint on Wednesday, May 27, 2026, accusing 36-year-old Michele Spagnuolo of wire fraud, commodities fraud, and money laundering. This high-profile arrest represents a critical shift in how federal regulators police blockchain-based betting markets, making it clear that traditional insider trading laws still apply to the decentralized Web3 space.
Spagnuolo worked as a staff information security engineer at Google’s headquarters, a role that granted him high-level, privileged access to the company’s internal software systems. Using this elevated clearance, Spagnuolo allegedly accessed “Google Confidential” data tracking real-time global search trends. Specifically, he retrieved advanced, nonpublic rankings for Google’s highly anticipated “Year in Search 2025” report weeks before the company published the official results on December 4, 2025.
Armed with this high-value, nonpublic information, Spagnuolo allegedly placed a series of strategic, high-stakes bets on Polymarket using an account under the alias “AlphaRaccoon.” His most profitable trade involved predicting that the rising indie-pop musician d4vd would become Google’s most-searched person of 2025. At the time he placed his bets, the general public viewed d4vd as an extreme long shot compared to major stars like Kendrick Lamar, and the Polymarket platform assigned a near-zero probability to his victory. However, Spagnuolo allegedly knew that d4vd’s recent arrest on murder charges had triggered an unprecedented, massive spike in search traffic, locking in his top position.
The alleged insider trading scheme extended far beyond a single, lucky bet. In total, Spagnuolo wagered approximately $2.7 million across 25 different prediction markets tied to Google’s search results, including contracts on whether Netflix’s Squid Game would rank as the most-searched television show. The decentralized betting platform has experienced explosive growth, with monthly trading volumes routinely surpassing $1 billion in 2026. Once Google released the official search results in December, Spagnuolo’s “AlphaRaccoon” wallet collected over $1.2 million in total winnings, which he then tried to conceal through complex cryptocurrency mixing techniques to hide the source of his funds.
Long before federal prosecutors unsealed the indictment, the broader Web3 and decentralized finance (DeFi) community had already flagged the “AlphaRaccoon” wallet for highly suspicious trading patterns. Observers on social media pointed out that the anonymous account achieved an unbelievable 22-out-of-23 success rate on specific Google search contracts. A security engineer at Meta first publicly highlighted the wallet’s abnormal accuracy, which eventually led blockchain investigators and federal agents to trace the wallet’s on-chain data back to Spagnuolo’s personal computer and IP address.
This landmark case marks only the second time in history that the U.S. federal government has brought criminal insider trading charges involving a decentralized prediction market. In April 2026, federal prosecutors indicted U.S. Army Master Sergeant Gannon Ken Van Dyke for commodities fraud. In that parallel case, Van Dyke allegedly used classified military intelligence to place a $400,000 Polymarket bet on the capture of Venezuelan leader Nicolás Maduro, demonstrating that regulators are increasingly treating decentralized prediction markets with the same legal scrutiny as traditional stock exchanges.
The prosecution of these cases has highlighted a surprising level of cooperation between Web3 platforms and federal law enforcement. Polymarket, which operates on the Polygon blockchain, actively assisted the FBI and the Commodity Futures Trading Commission (CFTC) in tracking down Spagnuolo’s digital footprint. In a public statement, a Polymarket spokesperson confirmed that the company is committed to maintaining market integrity and will continue to work closely with global regulators to eliminate insider trading, wash trading, and market manipulation.
Following the complaint’s unsealing, Google immediately placed Spagnuolo on administrative leave. A corporate spokesperson stated that the company is fully cooperating with federal law enforcement, emphasizing that utilizing confidential proprietary data to place commercial bets represents a severe, non-negotiable breach of company policy and professional ethics. Following his arrest in New York on Wednesday morning, a federal magistrate judge released Spagnuolo on a $2.25 million bond, requiring a $1 million cash deposit.
As decentralized prediction markets continue to attract billions of dollars in global capital, this historic prosecution signals a new era of strict regulatory oversight for the Web3 sector. The Commodity Futures Trading Commission’s active involvement demonstrates that the law will apply the same legal standards to digital prediction contracts as to traditional commodities and derivatives. For tech workers and corporate insiders, the $1.2 million Polymarket case serves as a clear warning that the blockchain’s permanent, public ledger makes concealing insider trading virtually impossible, ensuring that the long arm of the law will always catch up.
