Mario Gabelli acquired 1.6 Million GATX shares worth $165 Million. That's 1.61% of their equity portfolio (4th largest holding). The investor owns 4.65% of the outstanding GATX stock. The first GATX trade was made in Q1 2001. Since then Mario Gabelli bought shares 26 more times and sold shares on 56 occasions. The stake costed the investor $53.7 Million, netting the investor a gain of 208% so far.