Mario Gabelli acquired 2.6M Mueller Industries shares worth $253M. That's 2.32% of their equity portfolio (2nd largest holding). The investor owns 2.38% of the outstanding Mueller Industries stock. The first Mueller Industries trade was made in Q1 2001. Since then Mario Gabelli bought shares 35 more times and sold shares on 42 occasions. The stake costed the investor $37.6M, netting the investor a gain of 573% so far.