Ken Griffin acquired 474 Thousand Exelixis shares worth $11.2 Million. That's 0.01% of their equity portfolio (1069th largest holding). The first Exelixis 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 $8.99 Million, netting the investor a gain of 25% so far.