Ken Griffin acquired 265k MGM Resorts International shares worth $12.4M. That's 0.01% of their equity portfolio (1362nd largest holding). The first MGM Resorts International trade was made in Q2 2013. Since then Ken Griffin bought shares 64 more times and sold shares on 62 occasions. The stake costed the investor $10.3M, netting the investor a gain of 20% so far.