Jim Simons's position in Marsh & McLennan Cos. is currently worth $115 Million. That's 0.18% of their equity portfolio (120th largest holding). The first Marsh & McLennan Cos. trade was made in Q2 2013. Since then Jim Simons bought shares eighteen more times and sold shares on eighteen occasions. The stake costed the investor $102 Million, netting the investor a gain of 12% so far.