Ken Griffin's position in American Water Works Inc. is currently worth $18.8 Million. That's 0.02% of their equity portfolio (833rd largest holding). The first American Water Works Inc. trade was made in Q2 2013. Since then Ken Griffin bought shares 60 more times and sold shares on 42 occasions. The stake costed the investor $18.5 Million, netting the investor a gain of 1.9% so far.