Raj Rajaratnam pleads not guilty to insider trading
New York hedge-fund billionaire Raj Rajaratnam pleaded not guilty Monday to running an insider trading scheme that allegedly racked up $21 million in profits -- the biggest hedge-fund insider trading case ever brought.
Billionaire Raj Rajaratnam, a partner at hedge fund Galleon Group, and five others were arrested Friday in New York for insider trading in the latest scandal to rock Wall Street.