Mario Gabelli acquired 361k Henry Schein shares worth $28.9M. That's 0.26% of their equity portfolio (109th largest holding). The first Henry Schein trade was made in Q2 2001. Since then Mario Gabelli bought shares 29 more times and sold shares on 66 occasions. The stake costed the investor $7.96M, netting the investor a gain of 263% so far.