As Range Resources (RRC) Stock Value Declined, Rockshelter Capital Management Raised Holding; Alkermes Plc (ALKS) Stake Has Boosted by Rhenman & Partners Asset Management Ab The Yomi BlogRhenman & Partners Asset Management Ab increased its stake in Alkermes Plc (ALKS) by 4% based on its latest 2018Q3 regulatory filing with the SEC.