Alkermes Plc (ALKS) Holder Meditor Group LTD Lowered Stake by $4.01 Million; Antero Res (AR) Position Has Lifted by Key Group Holdings Cayman Ltd The FinHeadLinesMeditor Group Ltd decreased its stake in Alkermes Plc (ALKS) by 13.41% based on its latest 2018Q4 regulatory filing with the SEC. Meditor Group Ltd sold Key ...