Mario Gabelli acquired 238 Thousand Pfizer shares worth $6.05 Million. That's 0.07% of their equity portfolio (289th largest holding). The first Pfizer trade was made in Q1 2001. Since then Mario Gabelli bought shares 27 more times and sold shares on 61 occasions. The stake costed the investor $4.95 Million, netting the investor a gain of 22% so far.