A SEC filing reveals that Pershing Square Capital now has a 12.4% stake in Canadian Pacific...

|About: Canadian Pacific Railway ... (CP)|By:, SA News Editor

A SEC filing reveals that Pershing Square Capital now has a 12.4% stake in Canadian Pacific Railways (CP +0.3%), and is having "productive" discussions with the railroad operator over changes to the firm's "business and operations, its executive management and its board composition."