Billionaire investor Leon Cooperman has told clients his firm has been subpoenaed by the U.S. Attorney's Office in New Jersey and the SEC, according to a letter obtained by CNBC. In the letter, Cooperman says the investigation is in very early stages and that the firm is cooperating fully. The subpoenas seek information on the trading of certain securities. [CNBC]
Leon Cooperman Is Having None Of These Insider Trading Charges Against Him
"We've done nothing improper."