Mario Gabelli's position in Stoneridge is currently worth $3.89 Million. That's 0.04% of their equity portfolio (364th largest holding). The first Stoneridge trade was made in Q4 2007. Since then Mario Gabelli bought shares eighteen more times and sold shares on 34 occasions. The stake costed the investor $1.52 Million, netting the investor a gain of 156% so far.