BOSTON May 1 Activist investor William Ackman's
Pershing Square Holdings extended this year's strong gains with
a 7.6 percent jump in April, leaving it up 20 percent for the
year, three sources said on Thursday.
A large part of April's gains were driven by pharmaceutical
company Allergan Inc, whose stock rallied 36 percent in
the wake of news that Pershing Square had acquired a 10 percent
stake and is working with pharmaceutical company Valeant
to buy the Botox-maker.
Pershing Square now manages $13.6 billion.
(Reporting by Svea Herbst-Bayliss; Editing by Lisa Shumaker)