Jim Simons's position in Gilead Sciences is currently worth $964 Million. That's 1.29% of their equity portfolio (3rd largest holding). The investor owns 1.23% 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 fifteen occasions. The investor's estimated purchase price is $1.14 Billion, resulting in a loss of 15%.