Ken Griffin acquired 177 Thousand Arthur J. Gallagher shares worth $59.9 Million. That's 0.06% of their equity portfolio (420th largest holding). The first Arthur J. Gallagher trade was made in Q2 2013. Since then Ken Griffin bought shares 49 more times and sold shares on 52 occasions. The stake costed the investor $42.5 Million, netting the investor a gain of 41% so far.