Ken Griffin acquired 2.8 Thousand NN shares worth $10.4 Thousand. That's 0.00% of their equity portfolio (4847th largest holding). The first NN trade was made in Q4 2013. Since then Ken Griffin bought shares 27 more times and sold shares on 29 occasions. The stake costed the investor $5.14 Thousand, netting the investor a gain of 103% so far.