Mario Gabelli acquired 14.5 Thousand NewMarket shares worth $7.74 Million. That's 0.08% of their equity portfolio (254th largest holding). The first NewMarket trade was made in Q3 2004. Since then Mario Gabelli bought shares ten more times and sold shares on 38 occasions. The stake costed the investor $891 Thousand, netting the investor a gain of 768% so far.