Mario Gabelli's position in MerckInc is currently worth $6.01 Million. That's 0.06% of their equity portfolio (288th largest holding). The first MerckInc trade was made in Q4 2009. Since then Mario Gabelli bought shares twenty more times and sold shares on 38 occasions. The stake costed the investor $3.32 Million, netting the investor a gain of 81% so far.