Google Engineer Charged in $1.2M Polymarket Case

Why It Matters

This case shows risks when employees with privileged access use proprietary product data to trade on prediction markets and crypto-linked platforms. Tech professionals must reassess data access controls, insider-trading training and compliance for off-platform markets tied to company metrics.

Latest Changes

• U.S. prosecutors charged Google engineer Michele Spagnuolo with insider trading related to Polymarket bets
• Authorities say Spagnuolo used confidential access to Google Year in Search and user-search data
• Prosecutors allege about $1.2 million in gains from contracts predicting search trends before public release

Timeline

• 2026-05-27 — News outlets first report federal investigation and charges alleging Google employee used insider search data for Polymarket bets
• 2026-05-27 — ABC News and other U.S. outlets publish details naming Michele Spagnuolo and linking bets to Year in Search results
• 2026-05-28 — Major outlets including Bloomberg, Washington Post, TechCrunch and NPR report formal charging documents and alleged $1.2M profits

What to Watch

• Whether prosecutors file additional counts or other employees are implicated
• Company responses on data access controls, insider-trading policies and monitoring for off-platform trading