Mario Gabelli's position in Fiserv is currently worth $600 Thousand. That's 0.01% of their equity portfolio (619th largest holding). The first Fiserv trade was made in Q2 2016. Since then Mario Gabelli bought shares ten more times and sold shares on 24 occasions. The stake costed the investor $568 Thousand, netting the investor a gain of 5.7% so far.