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|
|VALEANT PHARMACEUTICALS INTERNATIONAL||VRX||19,473,933||$257.53||$5,015,121,966||History »||Related Stories »|
|Air Products & Chemicals Inc||APD||20,549,076||$142.51||$2,928,448,821||History »||Related Stories »|
|CANADIAN PACIFIC RAILWAY||CP||13,940,890||$160.85||$2,242,392,157||History »||Related Stories »|
|Zoetis||ZTS||41,823,145||+253,499||$48.98||$2,048,497,643||History »||Related Stories »|
|Restaurant Brands||QSR||38,003,984||$43.24||$1,643,292,269||History »||Related Stories »|
|PLATFORM SPECIALTY PRODUCTS CORPORATION||PAH||42,737,394||$23.27||$994,499,159||History »||Related Stories »|
|THE HOWARD HUGHES CORPORATION||HHC||3,568,017||$135.96||$485,107,592||History »||Related Stories »|
|Actavis plc||ACT||1,348,358||+1,348,358||$298.98||$403,132,075||History »||Related Stories »|
|Allergan Inc||AGN||Liquidated||History »||Related Stories »|