Herbalife stock dipped in after-hours trading right after the earnings were released, but then quickly rebounded.» Read More
The building has ruled over New York real estate, but now its sales may be coming back down to Earth.
Discovery Capital has been battered by volatility, according to a report that disclosed losses of more than 20 percent in one of its main funds.
Herbalife CEO, Michael Johnson, talks about the FTC investigation and Bill Ackman accusations in a recent interview with Los Angeles Magazine.
Wall Street is spending more on the midterms than ever before—particularly in support of the GOP—but it's not from whom you might think.
Jim Cramer takes on activist calls to CEOs strong performing companies, and suggests they realign their attention
U.S. stocks ended about 2 percent higher on Wednesday as markets extended gains on the FOMC minutes and recovered from Tuesday's selloff.
Founder and CEO, Pershing Square Capital Management
The SEC accuses two men of insider trading ahead of Bill Ackman's announcement that his Pershing Square fund had taken a short position on Herbalife.
As CEO of his own soon-to-be public company, Bill Ackman will use a dual share-class structure that has been considered unfriendly to investors.
U.S. stocks closed down on Friday, breaking five weeks of consecutive gains as investors awaited the Federal Reserve's announcement next Wednesday.
Take a look at some of Friday's midday movers:
William Ackman criticized Allergan's board of directors, urging them to "wake up" and at least listen to potential purchaser Valeant Pharmaceuticals.
Securities regulators are looking into the joint bid by Valeant Pharmaceuticals and activist investor Bill Ackman for Allergan, Dow Jones reported.
A lawsuit by Allergan says the unusual arrangement by Valeant Pharmaceuticals and activist investor Bill Ackman amounts to insider trading.
Allergan sued Valeant Pharmaceuticals and Pershing Square Capital, alleging both acted inappropriately in their hostile $53 billion bid.
A Republican congressman will pressure the Securities and Exchange Commission for reforms after Bill Ackman's efforts to take over Allergan.
As Bill Ackman said Herbalife needs to be shut down, the stock soared. Here's how much he may have lost in options alone.
Analyst Tim Ramey said assertions made by Bill Ackman during Tuesday's presentation are untrue, and Ackman is correcting the record.
Bill Ackman fired his latest shot at Herbalife Tuesday, but the company's stock mostly rose during the investor's presentation.
Bill Ackman, head of Pershing Square Capital Management, said his firm's presentation of a Herbalife investigation will "expose incredible fraud."