Ken Griffin acquired 75.9 Thousand W.W. Grainger shares worth $71.5 Million. That's 0.07% of their equity portfolio (323rd largest holding). The first W.W. Grainger trade was made in Q2 2013. Since then Ken Griffin bought shares 46 more times and sold shares on 53 occasions. The stake costed the investor $26.1 Million, netting the investor a gain of 174% so far.