BUSINESS
03/18/2010 05:12 am ET | Updated May 25, 2011

Sources: SEC Gearing Up For Insider-Trading Crackdown

Federal investigators are gearing up to file charges against a wider array of insider-trading networks, some linked to the criminal case against billionaire hedge-fund manager Raj Rajaratnam that shook Wall Street last week, people familiar with the matter said.

Read more on Bloomberg