Chuck Royce acquired 92.3 Thousand Mastec shares worth $9.9 Million. That's 0.09% of their equity portfolio (313th largest holding). The first Mastec trade was made in Q1 2013. Since then Chuck Royce bought shares nine more times and sold shares on fourteen occasions. The stake costed the investor $8.36 Million, netting the investor a gain of 18% so far.