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 Technologies (NYSE:UBER) rose 8% at least party after billionaire hedge fund investor Bill Ackman disclosed a stake in the ride-sharing and tech company. Ackman began purchasing shares last month ...

The server maker's shares have climbed more than 30% over the past four days, powered higher by two bits of good news.

Tesla makes a magnificent return to join Meta and Google. But the best mutual funds can't get enough of Axon and 5 others.