Ken Griffin acquired 161 Thousand Select Medical Holdings shares worth $4.29 Million. That's 0.00% of their equity portfolio (1601st largest holding). The first Select Medical Holdings trade was made in Q2 2013. Since then Ken Griffin bought shares 38 more times and sold shares on 42 occasions. The stake costed the investor $4.17 Million, netting the investor a gain of 2.8% so far.