Jim Simons's position in Markel Group is currently worth $23.6 Million. That's 0.04% of their equity portfolio (538th largest holding). The first Markel Group trade was made in Q2 2013. Since then Jim Simons bought shares 21 more times and sold shares on 21 occasions. The stake costed the investor $21.7 Million, netting the investor a gain of 8.9% so far.