Rebounding growth could make shares of this leading drugmaker a big winner.Bristol Myers Squibb (BMY 0.46%) has struggled to manage the loss of exclusivity now that some of its top-selling drugs are facing competition from generics. Disappointing results from the pharmaceutical giant have pressured the stock in recent years; it's currently down about 34% from its record high in 2022.The backdrop is concerning. But the good news is that the company's latest update signaled what could be the start of a long-a ...