Mario Gabelli's position in Donnelley Financial Solutions is currently worth $1.92 Million. That's 0.02% of their equity portfolio (478th largest holding). The first Donnelley Financial Solutions trade was made in Q1 2017. Since then Mario Gabelli bought shares seven more times and sold shares on nine occasions. The stake costed the investor $743 Thousand, netting the investor a gain of 158% so far.