Pershing Square unveils new stake in Alphabet

FILE PHOTO: William Ackman, founder and CEO of hedge fund Pershing Square Capital Management, speaks during the Sohn Investment Conference in New York, May 4, 2015. REUTERS/Brendan McDermid/File Photo

(Reuters) -Billionaire investor William Ackman has built in the first quarter a new stake in Alphabet worth $1.1 billion, according to a regulatory filing on Monday.

According to the filing, Ackman's hedge fund Pershing Square Capital Management owned 8.1 million class C shares and 2.2 million shares class A of Alphabet at the end of the first quarter.