Mario Gabelli acquired 936 Thousand Halliburton shares worth $36.3 Million. That's 0.37% of their equity portfolio (68th largest holding). The first Halliburton trade was made in Q1 2001. Since then Mario Gabelli bought shares 32 more times and sold shares on 55 occasions. The stake costed the investor $25.1 Million, netting the investor a gain of 45% so far.