Ken Griffin acquired 546 Markel Group shares worth $831 Thousand. That's 0.00% of their equity portfolio (2975th largest holding). The first Markel Group trade was made in Q2 2013. Since then Ken Griffin bought shares 30 more times and sold shares on 33 occasions. The stake costed the investor $799 Thousand, netting the investor a gain of 3.9% so far.