Federal prosecutors in Manhattan accused Raj Rajaratnam, the chief of the Galleon Group, of being at the center of a network that traded stocks on illegal tips from 2003 to March 2009. He was found guilty of all 14 counts of securities fraud and conspiracy.

Mr. Rajaratnam, a billionaire investor who once ran one of the world’s largest hedge funds, is the most prominent figure convicted in the government’s crackdown on insider trading on Wall Street.

The New York Times