Ken Griffin acquired 13 Thousand Esco Technologies shares worth $1.36 Million. That's 0.00% of their equity portfolio (2530th largest holding). The first Esco Technologies trade was made in Q2 2013. Since then Ken Griffin bought shares fifteen more times and sold shares on 22 occasions. The stake costed the investor $1.25 Million, netting the investor a gain of 8.9% so far.