UPDATE 1-Perrigo explores sale of royalties of drug Tysabri -sources
September 16, 2016 at 16:46 PM EDT
Sept 16 (Reuters) - Perrigo Company Plc, the manufacturer of generic drugs and over the counter medicines targeted by activist investor Starboard Value LP, is exploring a sale of the royalties from its multiple sclerosis drug Tysabri, people familiar with the matter said.