Mario Gabelli's position in MerckInc is currently worth $10.3 Million. That's 0.11% of their equity portfolio (206th largest holding). The first MerckInc trade was made in Q4 2009. Since then Mario Gabelli bought shares nineteen more times and sold shares on 35 occasions. The stake costed the investor $3.44 Million, netting the investor a gain of 201% so far.