Google engineer accused of Polymarket insider trading

By The BriefBrief

Michele Spagnuolo, a Switzerland-based Google engineer, was arrested over alleged insider trading on Polymarket. Spagnuolo says he was only gambling and argues the activity is beyond the reach of US commodities law.

WHO: Michele Spagnuolo

WHAT: Spagnuolo was arrested over alleged insider trading on Polymarket and said he was just gambling.

WHEN: Reported Aug 26, 2026 at 8:00 PM ET

WHERE: Switzerland

WHY: Cause not yet established.

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