Jim Simons's position in Builders Firstsource is currently worth $7.74 Million. That's 0.01% of their equity portfolio (1058th largest holding). The first Builders Firstsource trade was made in Q4 2013. Since then Jim Simons bought shares 22 more times and sold shares on twenty occasions. The investor's estimated purchase price is $12.3 Million, resulting in a loss of 37%.