Mario Gabelli acquired 5.7 Thousand NiSource shares worth $226 Thousand. That's 0.00% of their equity portfolio (742nd largest holding). The first NiSource trade was made in Q1 2001. Since then Mario Gabelli bought shares 25 more times and sold shares on twenty occasions. The stake costed the investor $205 Thousand, netting the investor a gain of 10% so far.