Citron Research tweeted that Mallinckrodt Public Limited Co. (NYSE: MNK) was another Valeant Pharmaceuticals International Inc. (NYSE: VRX). Shares of Mallinckrodt plunged $7.72 to $51.79 while Valeant stock edged up 54 cents to $34.05.
Negative tweet weighs down Mallinckrodt
March 16, 2016 at 14:11 PM EDT
