Billionaire investor Bill Ackman sparked a sell-off in UnitedHealth (UNH) shares on Wednesday after suggesting on X that the ...

UnitedHealth Group Inc. said it contacted the US Securities and Exchange Commission with concerns about investor Bill ...

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

Following Bill Ackman’s tweet last night, UnitedHealth (UNH) told Bloomberg: “Any claims that health insurers, which typically have low- to ...

Hedge fund billionaire Bill Ackman, who lost $1 billion shorting ... hardly a walk in the park no matter where you work, but short-selling is a notoriously brutal business.

Bill Ackman built a net worth of $9.3 billion by ... One rated the stock as an underperform while the other recommended selling. The average analysts' price target for Fannie Mae reflects an ...

Billionaire investor Bill Ackman questioned whether ... affiliate made a fortune yesterday with short-dated puts on Nvidia, power companies, etc.?” Ackman wrote Tuesday on X, formerly Twitter.

Had Bill Ackman and Pershing Square kept their original $1.1 billion investment in Netflix stock, it would now be worth $2.74 billion.

Billionaire hedge fund manager Bill ... But the short version is that if the transaction goes through, an investment in Howard Hughes Holdings today could allow you to invest in Ackman's vision.

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 ...

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.