Jim Simons acquired 817 Thousand Seres Therapeutics shares worth $621 Thousand. That's 0.00% of their equity portfolio (2513th largest holding). The first Seres Therapeutics trade was made in Q3 2015. Since then Jim Simons bought shares seventeen more times and sold shares on twelve occasions. The investor's estimated purchase price is $1.07 Million, resulting in a loss of 42%.