Mario Gabelli's position in Donnelley Financial Solutions is currently worth $940 Thousand. That's 0.01% of their equity portfolio (575th largest holding). The first Donnelley Financial Solutions trade was made in Q1 2017. Since then Mario Gabelli bought shares ten more times and sold shares on ten occasions. The stake costed the investor $400 Thousand, netting the investor a gain of 135% so far.