Ken Griffin acquired 13.5 Thousand W.W. Grainger shares worth $14 Million. That's 0.01% of their equity portfolio (1005th largest holding). The first W.W. Grainger trade was made in Q2 2013. Since then Ken Griffin bought shares 52 more times and sold shares on 62 occasions. The stake costed the investor $5.62 Million, netting the investor a gain of 150% so far.