Jim Simons acquired 251 Thousand Medpace Holdings shares worth $97.6 Million. That's 0.15% of their equity portfolio (144th largest holding). The first Medpace Holdings trade was made in Q3 2017. Since then Jim Simons bought shares ten more times and sold shares on fifteen occasions. The stake costed the investor $18.6 Million, netting the investor a gain of 425% so far.