Mario Gabelli acquired 557 Thousand AES shares worth $9.6 Million. That's 0.10% of their equity portfolio (224th largest holding). The first AES trade was made in Q1 2001. Since then Mario Gabelli bought shares 31 more times and sold shares on 49 occasions. The stake costed the investor $6.51 Million, netting the investor a gain of 48% so far.