Jim Simons acquired 168 Thousand Perma-Fix Environmental Services shares worth $2.02 Million. That's 0.00% of their equity portfolio (1855th largest holding). The investor owns 1.36% of the outstanding Perma-Fix Environmental Services stock. The first Perma-Fix Environmental Services trade was made in Q1 2014. Since then Jim Simons bought shares twenty more times and sold shares on seventeen occasions. The stake costed the investor $949 Thousand, netting the investor a gain of 113% so far.