Chuck Royce acquired 643 Thousand Brooks Automation shares worth $72.8 Million. That's 0.82% of their equity portfolio (9th largest holding). The first Brooks Automation trade was made in Q1 2013. Since then Chuck Royce bought shares eighteen more times and sold shares on 29 occasions. The stake costed the investor $6.97 Million, netting the investor a gain of 943% so far.