Jim Simons acquired 34.8 Thousand Perma-Fix Environmental Services shares worth $327 Thousand. That's 0.00% of their equity portfolio (2659th largest holding). 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 21 occasions. The stake costed the investor $197 Thousand, netting the investor a gain of 66% so far.