Ken Griffin acquired 6.7 Thousand Aspen Technology shares worth $1.49 Million. That's 0.00% of their equity portfolio (2552nd largest holding). The first Aspen Technology trade was made in Q2 2013. Since then Ken Griffin bought shares 47 more times and sold shares on 50 occasions. The stake costed the investor $822 Thousand, netting the investor a gain of 81% so far.