Ken Griffin acquired 2.03 Million Cameco shares worth $98.8 Million. That's 0.10% of their equity portfolio (235th largest holding). The first Cameco trade was made in Q2 2013. Since then Ken Griffin bought shares 60 more times and sold shares on 39 occasions. The stake costed the investor $38.8 Million, netting the investor a gain of 155% so far.