Mario Gabelli acquired 665 Thousand AZZ shares worth $53.2 Million. That's 0.58% of their equity portfolio (37th largest holding). The investor owns 2.28% of the outstanding AZZ stock. The first AZZ trade was made in Q2 2002. Since then Mario Gabelli bought shares 24 more times and sold shares on thirteen occasions. The stake costed the investor $25.9 Million, netting the investor a gain of 106% so far.