The Novo Nordisk A/S headquarters in Bagsvaerd, Denmark, on Wednesday, Nov. 5, 2025.Shares of Novo Nordisk on Monday fell as much 11% after the Danish drug pharmaceutical company said a highly-anticipated trial for Alzheimer's disease failed to meet its main goal.The trial tested whether semaglutide -- the active ingredient in Novo's blockbuster diabetes and weight loss drugs Ozempic and Wegovy -- helped slow progression for Alzheimer's disease. This is breaking news. Please refresh for updates. ...