Bill Ackman is preparing another major presentation on Herbalife, a source says.» Read More
Hedge fund investors Carl Icahn and Bill Ackman slugged it out on CNBC live over Herbalife and other deals. Who won the bout?
Billionaire activist investors Carl Icahn and Bill Ackman trade criticism over Herbalife and beyond.
Bill Ackman says "we will respond to every issue raised by Herblife." CNBC's Herb Greenberg reports.