US pharma stocks mostly firm after Trump tariffs

** Shares of major U.S. drugmakers were mostly stable or marginally up after President Donald Trump announced 100% tariffs on branded drugs imported by firms that are not building plants in U.S.

** Shares of Abbvie ABBV.N, Merck MRK.N and Eli Lilly LLY.N were up 1% premarket

** Shares of Amgen AMGN.O, Pfizer PFE.N, Johnson & Johnson BIIB.O and Bristol Myers Squibb BMY.N rose marginally

** Most of these companies had been boosting their U.S. manufacturing while the Trump administration weighed hefty tariffs on pharmaceutical imports into the country

** Up to last close, LLY down 7.4%, BMY down 23.3% and PFE down 11% YTD