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||$237.53||$4,625,643,306||History »||Related Stories »|
|Air Products & Chemicals Inc||APD||20,549,076||$146.77||$3,015,987,885||History »||Related Stories »|
|CANADIAN PACIFIC RAILWAY||CP||13,940,890||$176.74||$2,463,912,899||History »||Related Stories »|
|Zoetis||ZTS||41,823,145||+253,499||$47.63||$1,992,036,397||History »||Related Stories »|
|Restaurant Brands||QSR||38,003,984||$39.84||$1,514,078,723||History »||Related Stories »|
|PLATFORM SPECIALTY PRODUCTS CORPORATION||PAH||42,737,394||$27.42||$1,171,859,344||History »||Related Stories »|
|THE HOWARD HUGHES CORPORATION||HHC||3,568,017||$148.62||$530,278,687||History »||Related Stories »|
|Actavis plc||ACT||1,348,358||+1,348,358||$301.35||$406,327,684||History »||Related Stories »|
|Allergan Inc||AGN||Liquidated||History »||Related Stories »|