He upped the ante in his ongoing dispute with Herbalife, saying Wednesday that the company already has been shut down but hasn't acknowledged it. » Read More
Bill Ackman, Pershing Square CEO, joins "Fast Money Halftime Report" and talks about Herbalife and Valeant.
Carl Icahn and Bill Ackman may have made up after their epic feud, but Icahn still insists Ackman is "totally wrong" for shorting Herbalife.
Billionaire investor Carl Icahn, who made up with Ackman, tells CNBC Herbalife is not a pyramid scheme and it creates jobs.
In 2011, hedge fund manager Whitney Tilson was down 25 percent. By 2013, he set his sights on making up his lost ground.
Hedge fund manager Whitney Tilson sat down with CNBC's Kelly Evans for an in-depth interview about his investment strategy.
Herbalife whipsawed after The New York Post reported the firm and the Federal Trade Commission settled a years-long probe.
CNBC's Scott Wapner provides insight to a comment from a source regarding Herbalife.
The direct-selling industry is booming as entrepreneurs get rich tapping into social media rather than knocking on front doors.
Bill Ackman and David Einhorn are two of the most well-known top hedge fund managers, but they might as well be on a seesaw.
Pivotal Research analyst Tim Ramey has a buy on Herbalife.
CNBC's Jim Cramer explains why he is watching Herbalife and how there is no longer an active DOJ investigation.
Some of the names on the move ahead of the open.
Check out the companies making headlines after the bell Thursday: GoPro, Square, Herbalife, Yelp and more.
Shares in Herbalife jumped more than 13 percent in after-hours trading.
Herbalife says FTC talks are at 'advanced stage.' CNBC's Sue Herera reports the updates.
Hedge fund manager Bill Ackman took more swipes at Herbalife, saying he has not changed his bet against the nutritional company.
Discussing shining the spotlight on Herbalife, with Bill Ackman, Pershing Square Capital CEO and portfolio manager.
Hedge fund titan Bill Ackman is best known for his investments in the market, but it's another investment that's grabbing the attention of Wall Street.
European soccer has consistently outstripped all other sports in terms of generating revenue.
Activist investor Bill Ackman has long had an ax to grind against Herbalife. Now, the battle is the subject of a big-screen documentary.