Famed Las Vegas sports gambler William “Billy” Walters was convicted on Friday of charges that he made more than $40 million through an insider trading scheme that prosecutors said involved a stock tip to star professional golfer Phil Mickelson.

Walters, who built a fortune as one of the most successful sports bettors in the United States, was found guilty by a federal jury in Manhattan on all 10 counts he faced, including securities fraud, wire fraud and conspiracy.