NEW YORK (CNN) -- Federal agents raided the offices of three investment firms, officials said Monday, with the raids coming amid widespread speculation of hedge-fund insider trading allegations.
The names of the companies were not made public, but a law enforcement official with knowledge of the investigation said the addresses of the raids matched the addresses of Diamondback Capital Management LLC in Stamford, Connecticut; Loch Capital Management in Boston; and Level Global Investors LP in New York.
The official addresses of those firms were listed in a U.S. Securities and Exchange Commission statement filed on Sept. 30.
"The FBI is conducting court-authorized search warrants in an ongoing investigation," the official told CNN, but declined to comment on whether the raids were part of a wider insider-trading investigation.
Monday's raid comes on the heels of a 2009 case, when federal prosecutors charged hedge-fund billionaire Raj Rajaratnam of the Galleon Group and others with reaping millions from illegal trading between 2006 and 2009. Rajaratnam has pleaded not guilty.
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