For a decade, Grant Wilson toiled on a small trading desk at Bank of New York Mellon Corp. in Pittsburgh, buying and selling currencies for the bank’s biggest clients. For the last two of those years he was also a secret whistleblower, assisting currency-trading investigations of BNY Mellon.
His input culminated with the filing last week of separate civil lawsuits by the Justice Department in federal court and New York attorney general in state court alleging that BNY Mellon systematically overcharged investors on billions of dollars of currency trades, defrauding or misleading them for a decade.