Mario Gabelli's position in Thermo Fisher Scientific is currently worth $2.23M. That's 0.02% of their equity portfolio (484th largest holding). The first Thermo Fisher Scientific trade was made in Q1 2001. Since then Mario Gabelli bought shares 37 more times and sold shares on 51 occasions. The stake costed the investor $866k, netting the investor a gain of 158% so far.