Ken Griffin acquired 19.6 Thousand TREX , Inc. shares worth $1.14 Million. That's 0.00% of their equity portfolio (2745th largest holding). The first TREX , Inc. trade was made in Q2 2013. Since then Ken Griffin bought shares 61 more times and sold shares on 48 occasions. The stake costed the investor $1.06 Million, netting the investor a gain of 8.3% so far.