Pershing Square Holdings is a large Guernsey investment trust dedicated to long-term investments in North American companies. Established in 2012, the company is a constituent of the FTSE 100 Index. The chairman is Anne Farlow. The fund is managed by Bill Ackman of Pershing Square Capital Management. Pershing Square Holdings, a FTSE company, tracks the performance of Pershing Square Capital Management, an American fund. Wikipedia