Uber stock gained a second straight day as Bill Ackman said he had built a stake worth more than $2 billion. Freyr announced ...

Uber’s stock extends its surge as hedge funder Ackman says he’s amassed a 30.3-million-share stake since early January.

Uber stock hit its highest level since October after Ackman disclosed his Pershing Square hedge fund accumulated a 1.4% stake ...

Pershing Square’s Bill Ackman revealed Friday that he has built a significant stake in Uber, saying the stock is still ...

Uber Technologies (UBER) rose 8% at least party after Bill Ackman disclosed a stake in the ride-sharing company.

With Bill Ackman's posts, one of the world’s most prominent investors is intensifying a dispute between a doctor and ...

Pershing Square Capital Management Chief Executive Officer Bill Ackman said he took down a critical post about UnitedHealth Group Inc. after the company’s lawyers told him the claims about the company ...

Former bond king Bill Gross says that the hot energy pipeline stocks “‘seem to be topping” after a big run and that he has ...

Plus, the food conglomerate owner of Krispy Kreme buys an insurance company and a distressed-debt battle in Japan ...

UnitedHealth shares fell more than 4% on Wednesday before finishing down 1%, a day after hedge-fund manager Bill Ackman wrote a post on social media that said the insurer could be overstating its ...

UnitedHealth has reached out to the U.S. Securities and Exchange Commission about billionaire investor Bill Ackman's ...

Trump administration dialed back its Gaza proposal after global backlash. US not committing troops or funds. Proposal complicates peace talks.