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

Bill Ackman announced on Saturday that his management company would leave Delaware to reincorporate in Nevada.

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 ...

Bill Ackman, the owner of investment firm Pershing Square, said on Saturday that he is reincorporating his management 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 ...