Ken Griffin acquired 346 Thousand Stryker shares worth $98.6 Million. That's 0.12% of their equity portfolio (199th largest holding). The first Stryker trade was made in Q2 2013. Since then Ken Griffin bought shares 46 more times and sold shares on 35 occasions. The stake costed the investor $68.3 Million, netting the investor a gain of 44% so far.