Mario Gabelli acquired 475k MGM Resorts International shares worth $17.6M. That's 0.16% of their equity portfolio (154th largest holding). The first MGM Resorts International trade was made in Q1 2001. Since then Mario Gabelli bought shares 32 more times and sold shares on 58 occasions. The stake costed the investor $13.5M, netting the investor a gain of 31% so far.