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.

Billionaire hedge fund manager Bill Ackman revealed on Friday that his activist investment firm has bought up approximately ...

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

Shares of the ride-sharing giant Uber Technologies (NYSE: UBER) rose nearly 9%, as of 12:38 p.m. ET today, after billionaire ...

Billionaire investor Bill Ackman has disclosed a significant stake in Uber Technologies (UBER) that sent the ride-hailing company’s stock up ...

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 ...