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||$43.56||$5,238,753,768||History »||Related Stories »|
|VALEANT PHARMACEUTICALS INTERNATIONAL||VRX||19,473,933||$182.32||$3,550,487,465||History »||Related Stories »|
|Air Products & Chemicals Inc||APD||20,549,076||$130.52||$2,682,065,400||History »||Related Stories »|
|CANADIAN PACIFIC RAILWAY||CP||13,940,890||$149.47||$2,083,744,829||History »||Related Stories »|
|Zoetis||ZTS||41,823,145||$43.02||$1,799,231,698||History »||Related Stories »|
|Restaurant Brands||QSR||38,003,984||$34.97||$1,328,999,321||History »||Related Stories »|
|PLATFORM SPECIALTY PRODUCTS CORPORATION||PAH||42,737,394||$13.76||$588,066,542||History »||Related Stories »|
|THE HOWARD HUGHES CORPORATION||HHC||3,568,017||$118.14||$421,525,529||History »||Related Stories »|
|Actavis plc||ACT||Liquidated||History »||Related Stories »|