David Tepper acquired 10.5 Million Alibaba Group Holding Ltd shares worth $1.21 Billion. It makes up 18.10% 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 nineteen occasions. The stake costed the investor $830 Million, netting the investor a gain of 46% so far.