Bill Ackman runs hedge fund Pershing Square Capital, which he started in 2003 following the dissolution of Gotham Partners.
Ackman is a value investor with an activist bent. Activist investors agitate management for changes. He owns large positions in Target (NYSE: TGT) and Borders (NYSE: BGP). He has also been involved in activist situations at Wendy's (NYSE: WEN) and McDonald's (NYSE: MCD).
In July 2008, Ackman said he was short the common stock of Fannie Mae (NYSE: FNM) and Freddie Mac (NYSE: FRE). Ackman also laid out a plan to reorganize the GSEs, which would wipe out the common shareholders.
William Ackman's Portfolio
|Company||Ticker||# of Shares||Change||Price||Value|
|Mondelez International||MDLZ||120,265,238||+120,265,238||$42.80||$5,147,352,187||History »||Related Stories »|
|VALEANT PHARMACEUTICALS INTERNATIONAL||VRX||19,473,933||$236.12||$4,598,185,060||History »||Related Stories »|
|Air Products & Chemicals Inc||APD||20,549,076||$140.67||$2,890,638,521||History »||Related Stories »|
|CANADIAN PACIFIC RAILWAY||CP||13,940,890||$146.16||$2,037,600,483||History »||Related Stories »|
|Zoetis||ZTS||41,823,145||$45.78||$1,914,663,579||History »||Related Stories »|
|Restaurant Brands||QSR||38,003,984||$39.56||$1,503,437,608||History »||Related Stories »|
|PLATFORM SPECIALTY PRODUCTS CORPORATION||PAH||42,737,394||$19.41||$829,532,818||History »||Related Stories »|
|THE HOWARD HUGHES CORPORATION||HHC||3,568,017||$126.24||$450,426,467||History »||Related Stories »|
|Actavis plc||ACT||Liquidated||History »||Related Stories »|