Jim Simons's position in Gilead Sciences is currently worth $857 Million. That's 1.05% of their equity portfolio (5th largest holding). The investor owns 1.07% of the outstanding Gilead Sciences stock. The first Gilead Sciences trade was made in Q2 2013. Since then Jim Simons bought shares nineteen more times and sold shares on sixteen occasions. The investor's estimated purchase price is $984 Million, resulting in a loss of 13%.