Ken Griffin's position in Marsh & McLennan Cos. is currently worth $9.27 Million. That's 0.01% of their equity portfolio (1202nd largest holding). The first Marsh & McLennan Cos. trade was made in Q2 2013. Since then Ken Griffin bought shares 58 more times and sold shares on 53 occasions. The stake costed the investor $6.41 Million, netting the investor a gain of 45% so far.