David Tepper acquired 118 Thousand Lam Research shares worth $108 Million. That's 1.64% of their equity portfolio (16th largest holding). The investor owns 93.28% of the outstanding Lam Research stock. The first Lam Research trade was made in Q2 2006. Since then David Tepper bought shares eight more times and sold shares on ten occasions. The stake costed the investor $66.5 Million, netting the investor a gain of 62% so far.