Billionaire hedge fund manager Bill Ackman revealed on Friday that his activist investment firm has bought up approximately ...

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

With Bill Ackman's posts, one of the world’s most prominent investors is intensifying a dispute between a doctor and ...

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 ...

Shanon and William Schmidtknecht, of Poynette, say their 22-year-old son Cole was told the cost had jumped from $66 to $539 ...

Cole Schmidtknecht had chronic asthma since he was a child, and had used a steroid inhaler to control his symptoms for more ...

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

File-sharing service Dropbox unveiled plans last Friday to move its incorporation from Delaware to Nevada. The San Francisco-based tech firm said in a securities filing that it’s in a transformational ...

Billionaire Bill Ackman is making Pershing the latest high-profile company to depart longtime corporate haven Delaware.

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

This Week: A new Chinese-based app is disrupting the stock market, as its apparent efficacy has left investors worried they bet on the wrong horse. Ultra-rich billionaires continue to kiss the ring at ...