Ken Griffin acquired 25.3 Thousand American Tower shares worth $4.99 Million. That's 0.00% of their equity portfolio (1552nd largest holding). The first American Tower trade was made in Q2 2013. Since then Ken Griffin bought shares 49 more times and sold shares on 50 occasions. The stake costed the investor $3.53 Million, netting the investor a gain of 41% so far.