Thermo Fisher Scientific Inc. (NYSE:TMO) saw its share prices increase by 8.71 percent on Thursday to close at $572.32 apiece, as investors took heart from the strong earnings performance and a series of price target upgrades for its stock. Photo by Tima Miroshnichenko on Pexels3 Price Target HikesFollowing the results, Thermo Fisher Scientific Inc. (NYSE:TMO) earned price target upgrades and optimistic ratings from three investment firms, namely Jefferies, Leerink Partners, and Evercore ISI. Among the three, Jefferies gave the highest price target of $630, up from 7.7 percent from $585 previously, while maintaining a "buy" recommendation for its stock. Meanwhile, Leerink Partners raised its price target for Thermo Fisher Scientific Inc. (NYSE:TMO) to $620 from $600, while reaffirming its outperform rating. Evercore ISI, for its part, upgraded the stock to $615 from $570, while reiterating its outperform rating.