Bill Ackman says he and his wife, Neri Oxman, are suing Business Insider after the outlet published two stories claiming Oxman committed plagiarism in her doctoral dissertation.

Pershing Square Capital Management is pushing for a merger after the spinoff of some of Howard Hughes’ other entities.

On June 9, Bill Ackman tweeted a vulgar Reddit video to ... Talk of filing a class-action lawsuit has bubbled up. One user, who said they were fed up with following the saga so closely, said ...

Ackman recently took activist investing to an even higher level. He wants -- and expects -- President-elect Donald Trump to ...

Bill Ackman is one of the best-known billionaires in the world of investing. As manager of his Pershing Square Capital hedge ...

An analysis of Bill Ackman's presentation on Fannie Mae and Freddie Mac, cautioning investors on volatility and long-term ...

The Food and Drug Administration is facing some backlash from hedge fund manager Bill Ackman about how long it took to ban Red No. 3 from the U.S. supply chain.

Bill Ackman is the founder and CEO of Pershing Square ... In late 2017, Pershing Square settled a lawsuit for $193.75 million that was brought by shareholders of Allergan, the maker of Botox ...

Billionaire hedge fund manager Bill Ackman announced plans to build a modern-day Berkshire Hathaway (NYSE: BRK.A) (NYSE: BRK.B). Although Ackman and his investors would own most of it, it would be ...

Hedge fund billionaire Bill Ackman has said he expects Donald Trump to privatize two of the nation’s biggest government-owned mortgage lenders. The Trump-supporting financier said he believes ...