Mario Gabelli acquired 11.9 Thousand American International Group shares worth $864 Thousand. That's 0.01% of their equity portfolio (574th largest holding). The first American International Group trade was made in Q3 2009. Since then Mario Gabelli bought shares thirteen more times and sold shares on 33 occasions. The stake costed the investor $482 Thousand, netting the investor a gain of 79% so far.