An old Canadian Pacific Railway stock certificate - Date/Photographer unknown.

15 February 2012

Ackman's Pershing Boosts Canadian Pacific Stake

New York New York USA - Pershing Square Capital Management LP, the hedge fund run by William Ackman, boosted its stake in Canadian Pacific Railway Ltd. (CP) to about 14 percent of the company's stock and cut its holding in Kraft Foods Inc.
 
The fund reported holding about 24.2 million Canadian Pacific shares valued at $1.63 billion as of 31 Dec 2011, up from about 4.04 million shares as of 30 Sep 2011, according to a filing today with the U.S. Securities and Exchange Commission.