Stocks making the biggest moves premarket: GSK, Nuvalent, J.M. Smucker, SailPoint and more

Check out the companies making headlines before the bell: GSK , Nuvalent — Shares of U.S. drugmaker Nuvalent rose nearly 39% after U.K.-based biopharmaceutical company GSK announced an agreement to acquire the company for $10.6 billion. J.M. Smucker Company — Shares jumped 3.5% after the maker of Smucker's jam and Jif peanut butter reported fourth-quarter results that topped expectations. Earnings of $2.77 per share, on an adjusted basis, exceeded the $2.64 FactSet consensus estimate. …