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|
|Allergan Inc||AGN||26,635,978||-2,242,560||$240.22||$6,398,494,636||History »||Related Stories »|
|Valeant Pharma||VRX||19,473,933||+19,473,933||$216.65||$4,219,027,585||History »||Related Stories »|
|Air Products & Chemicals Inc||APD||20,549,076||$145.83||$2,996,671,754||History »||Related Stories »|
|CANADIAN PACIFIC RAILWAY||CP||13,940,890||$186.77||$2,603,740,026||History »||Related Stories »|
|Zoetis||ZTS||41,569,646||+36,032,784||$45.65||$1,897,654,340||History »||Related Stories »|
|QSR||38,003,984||$40.58||$1,542,201,671||History »||Related Stories »|
|PLATFORM SPECIALTY PRODUCTS CORPORATION||PAH||42,737,394||$27.39||$1,170,577,222||History »||Related Stories »|
|THE HOWARD HUGHES CORPORATION||HHC||3,568,017||$147.33||$525,675,945||History »||Related Stories »|
|BURGER KING WORLDWIDE, Inc.||BKW||Liquidated||History »||Related Stories »|