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

Billionaire Bill Ackman disclosed Friday his hedge fund made a major bet on ride hailing giant Uber, helping boost shares of the San Francisco-based company to their highest level in months as ...

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

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

Market participants predict less enforcement of fraud, possible changes to the SEC whistleblower program, and avoidance of ...

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 revealed on Friday that his activist investment firm has bought up approximately $2 billion worth of shares of Uber — sending the ride-share company ...

Investing.com-- In a now-deleted post, hedge fund manager Bill Ackman said on Tuesday evening that he would short UnitedHealth Group (NYSE:UNH), calling on the SEC to investigate the firm on ...

Billionaire investor Bill Ackman pledged to cover the legal fees for a Texas doctor in a dispute with UnitedHealth Group Inc. over her claims that the company asked her to scrub out of an ...

Ackman said Friday in the post that his Pershing Square investment fund began acquiring a position in Uber in early January and now owns 30.3 million shares. That would give him a 1.4% ownership ...

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.

Ackman eventually called uncle, and exited his short bet in early 2018 ... from Dow Jones Newswires and The Wall Street Journal. We sell different types of products and services to both investment ...