Ken Griffin acquired 43.5 Thousand Perma-Fix Environmental Services shares worth $337 Thousand. That's 0.00% of their equity portfolio (3854th largest holding). The first Perma-Fix Environmental Services trade was made in Q1 2017. Since then Ken Griffin bought shares five more times and sold shares on four occasions. The investor's estimated purchase price is $342 Thousand, resulting in a loss of 1.5%.