Ken Griffin acquired 156 Thousand Canadian National Railway shares worth $16.3 Million. That's 0.02% of their equity portfolio (942nd largest holding). The first Canadian National Railway trade was made in Q3 2013. Since then Ken Griffin bought shares 52 more times and sold shares on 61 occasions. The stake costed the investor $15.3 Million, netting the investor a gain of 6.8% so far.