Ken Griffin's position in Marsh & McLennan Cos. is currently worth $1.17 Million. That's 0.00% of their equity portfolio (2647th largest holding). The first Marsh & McLennan Cos. trade was made in Q2 2013. Since then Ken Griffin bought shares 50 more times and sold shares on 49 occasions. The stake costed the investor $814 Thousand, netting the investor a gain of 44% so far.