Ken Griffin's position in TransUnion is currently worth $203M. That's 0.13% of their equity portfolio (152nd largest holding). The investor owns 1.63% of the outstanding TransUnion stock. The first TransUnion trade was made in Q2 2015. Since then Ken Griffin bought shares 62 more times and sold shares on 48 occasions. The investor's estimated purchase price is $235M, resulting in a loss of 14%.