Jim Simons acquired 3.32 Million National Grid Plc shares worth $225 Million. That's 0.34% of their equity portfolio (52nd largest holding). Jim Simons started to build up the position in National Grid Plc in Q2 2017 and continued to invest until Q1 2020. Since then they sold 3.69 Million shares. The stake costed the investor $197 Million, netting the investor a gain of 14% so far.