Activist investor Ryan Cohen builds stake in Alibaba -WSJ

(Reuters) - Activist investor Ryan Cohen has built a stake in China's Alibaba Group Holding Ltd worth hundreds of millions of dollars, the Wall Street Journal reported on Monday, citing people familiar with the matter.

Cohen is privately pushing the Chinese e-commerce giant to accelerate and further boost its share repurchase program, the newspaper reported.

(Reporting by Aishwarya Nair in Bengaluru; Editing by Leslie Adler)