Jeremy Grantham acquired 752 Thousand Lam Research shares worth $293 Million. That's 1.65% of their equity portfolio (15th largest holding). The first Lam Research trade was made in Q4 2015. Since then Jeremy Grantham bought shares eleven more times and sold shares on ten occasions. The stake costed the investor $283 Million, netting the investor a gain of 3.7% so far.