Mario Gabelli acquired 6.4 Thousand General American Investors , Inc. shares worth $291 Thousand. That's 0.00% of their equity portfolio (715th largest holding). Mario Gabelli started to build up the position in General American Investors , Inc. in Q1 2007 and continued to invest until Q4 2007. Since then they sold 6.4 Thousand shares. The stake costed the investor $241 Thousand, netting the investor a gain of 21% so far.