Mario Gabelli's position in Diageo plc is currently worth $29.6 Million. That's 0.32% of their equity portfolio (80th largest holding). The first Diageo plc trade was made in Q1 2001. Since then Mario Gabelli bought shares 42 more times and sold shares on 50 occasions. The stake costed the investor $18.6 Million, netting the investor a gain of 59% so far.