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 ...

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

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

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

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

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

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

The selling picked up the pace in the stock market today after a mixed jobs report, but there were plenty of earnings winners ...

Trump’s rhetoric and actions have impacted clean-energy projects around the country. But these stocks still look promising.