Stocks Hitting 52-Week Highs By: Benzinga via Benzinga March 17, 2015 at 10:12 AM EDT Mallinckrodt public limited company (NYSE: MNK) shares gained 2.04% to reach a new 52-week high of $129.01. Mallinckrodt's PEG ratio is ... Read More >> Related Stocks: Alnylam Pharmaceuticals Catalyst Pharm Inc Grubhub Ord Shs Mallinckrodt plc