Jim Simons's position in AMGEN is currently worth $34 Million. That's 0.05% of their equity portfolio (445th largest holding). The first AMGEN trade was made in Q2 2013. Since then Jim Simons bought shares 21 more times and sold shares on 26 occasions. The stake costed the investor $33.8 Million, netting the investor a gain of 0.6% so far.