The FBI says 55-year-old Sandy Winick was arrested over the weekend.
Thai newspaper Bangkok Post reports that he was arrested in an apartment in the city and is awaiting extradition to the U.S.
Winick is one of four Canadians the FBI says were involved in a massive "pump and dump'' scheme that generated more than $120 million in investments by tens of thousands of people in the United States, Canada and 33 other countries.
One of the Canadians was previously arrested in Ontario and another one was arrested in the U.S., along with five other American suspects.
Gregory Curry, 63, is also wanted in the alleged scheme.
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