Ken Griffin acquired 37 Thousand W.R. Berkley shares worth $2.69 Million. That's 0.00% of their equity portfolio (2051st largest holding). The first W.R. Berkley trade was made in Q2 2013. Since then Ken Griffin bought shares 53 more times and sold shares on 49 occasions. The stake costed the investor $2.47 Million, netting the investor a gain of 8.7% so far.