David Tepper acquired 11.3 Million Alibaba Group Holding Ltd shares worth $911 Million. It makes up 13.16% of their stock portfolio and is their biggest holding. The first Alibaba Group Holding Ltd trade was made in Q3 2014. Since then David Tepper bought shares thirteen more times and sold shares on eighteen occasions. The stake costed the investor $889 Million, netting the investor a gain of 2.5% so far.