Plus, the food conglomerate owner of Krispy Kreme buys an insurance company and a distressed-debt battle in Japan ...

UnitedHealth's shares fell about 1.5% in afternoon trade after Ackman's post. "Any claims that health insurers, which ...

UnitedHealth (NYSE:UNH) has contacted the US Securities and Exchange Commission about its issues with hedge fund investor ...

Activist short seller Nate Anderson is going out ‘on top’, according to one rival, as difficulties for short sellers mount in a relentless bull market.

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 ...

Executive Orders which President Donald Trump signed on his first day in office launched a flurry of activities that included sending perhaps thousands of federal ...

Nate Anderson, the founder of Wall Street’s top activist short seller Hindenburg, announced this month that he was hanging up ...

Billionaire Bill Ackman helped fund the spinoff of Howard Hughes Holdings Inc. from General Growth Properties in 2010 and has been a big shareholder in the real-estate company since then.

Billionaire investor Bill Ackman has been climbing the ranks of best investors to watch for much of the 21st century. Like most hedge funds, his returns have been volatile. For in ...

Billionaire investor Bill Ackman has been climbing the ranks of best investors to watch for much of the 21st century. Like most hedge funds, his returns have been volatile. For instance ...