Ken Griffin acquired 730 Thousand Geo Group shares worth $10.4 Million. That's 0.01% of their equity portfolio (1125th largest holding). The first Geo Group trade was made in Q3 2014. Since then Ken Griffin bought shares 46 more times and sold shares on 47 occasions. The stake costed the investor $8.64 Million, netting the investor a gain of 20% so far.