Mario Gabelli acquired 9.11 Thousand Alliant Energy shares worth $473 Thousand. That's 0.00% of their equity portfolio (669th largest holding). The first Alliant Energy trade was made in Q3 2002. Since then Mario Gabelli bought shares eleven more times and sold shares on 55 occasions. The stake costed the investor $161 Thousand, netting the investor a gain of 195% so far.