Ken Griffin acquired 96.5 Thousand CIENA shares worth $4.32 Million. That's 0.00% of their equity portfolio (1596th largest holding). The first CIENA trade was made in Q2 2013. Since then Ken Griffin bought shares 53 more times and sold shares on 46 occasions. The stake costed the investor $4.2 Million, netting the investor a gain of 3.0% so far.