Ken Griffin acquired 8.8 Thousand Clean Harbors shares worth $1.99 Million. That's 0.00% of their equity portfolio (2301st largest holding). The first Clean Harbors trade was made in Q2 2013. Since then Ken Griffin bought shares 46 more times and sold shares on 57 occasions. The stake costed the investor $1.11 Million, netting the investor a gain of 79% so far.