Mario Gabelli's position in Fiserv is currently worth $663 Thousand. That's 0.01% of their equity portfolio (620th largest holding). The first Fiserv trade was made in Q2 2016. Since then Mario Gabelli bought shares nine more times and sold shares on 21 occasions. The stake costed the investor $626 Thousand, netting the investor a gain of 5.8% so far.