Mario Gabelli acquired 1.57 Thousand Factset Research Systems shares worth $711 Thousand. That's 0.01% of their equity portfolio (594th largest holding). The first Factset Research Systems trade was made in Q4 2005. Since then Mario Gabelli bought shares five more times and sold shares on two occasions. The stake costed the investor $633 Thousand, netting the investor a gain of 12% so far.