Jim Simons acquired 130 Thousand W.R. Berkley shares worth $9.46 Million. That's 0.01% of their equity portfolio (950th largest holding). The first W.R. Berkley trade was made in Q2 2013. Since then Jim Simons bought shares twenty more times and sold shares on 22 occasions. The stake costed the investor $7.75 Million, netting the investor a gain of 22% so far.