Chuck Royce acquired 1.32M Exponent shares worth $89M. That's 0.79% of their equity portfolio (11th largest holding). The investor owns 2.73% of the outstanding Exponent stock. The first Exponent trade was made in Q1 2013. Since then Chuck Royce bought shares fourteen more times and sold shares on 33 occasions. The investor's estimated purchase price is $96M, resulting in a loss of 7.2%.