Jim Simons acquired 149 Thousand Perma-Fix Environmental Services shares worth $1.76 Million. That's 0.00% of their equity portfolio (1990th largest holding). The investor owns 1.03% 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 eighteen occasions. The stake costed the investor $840 Thousand, netting the investor a gain of 110% so far.