Bill Ackman shared choice comments on UnitedHealth Group on his social media account before deleting his posts. Here's a look ...

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

Billionaire hedge fund manager Bill Ackman deleted a post on X in which he raised the possibility that the midair collision between a passenger jet and a military helicopter near Reagan Airport on ...