Billionaire investor Bill Ackman founded hedge fund Pershing Square Capital Management, and serves as its CEO. Pershing Square's latest 13F, filed a couple of weeks ago, didn't contain many surprises.

Billionaire Bill Ackman has accumulated a stake in Hertz worth nearly 20%. Of the 10 analysts covering Hertz, not one considers the car rental stock a buy. Some may be eyeing Hertz's declining ...

Bill Ackman’s hedge fund, Pershing Square Holdings, is well-known for concentrating bets in fewer than a dozen names at any given time. Indeed, many portfolios get out of hand with the number of ...