Jim Simons's position in Marsh & McLennan Cos. is currently worth $134 Million. That's 0.20% of their equity portfolio (103rd largest holding). The first Marsh & McLennan Cos. trade was made in Q2 2013. Since then Jim Simons bought shares nineteen more times and sold shares on eighteen occasions. The stake costed the investor $128 Million, netting the investor a gain of 4.4% so far.