Jim Simons's position in Caredx is currently worth $14.3 Million. That's 0.02% of their equity portfolio (774th largest holding). The investor owns 2.79% of the outstanding Caredx stock. The first Caredx trade was made in Q1 2015. Since then Jim Simons bought shares fourteen more times and sold shares on nine occasions. The investor's estimated purchase price is $40.9 Million, resulting in a loss of 65%.