ARM Holdings PLC Sponsored ADR (NASDAQ:ARM – Get Free Report)’s share price shot up 4.4% during mid-day trading on Thursday . Following the completion of the transaction, the insider directly owned 20,563 shares of the company’s stock, valued at $8,281,131.36. Rathbones Group PLC now owns 500,043 shares of the company’s stock valued at $54,660,000 after purchasing an additional 489,491 shares during the period. Hedge funds and other institutional investors own 7.53% of the company’s stock. ARM Company Profile(Get Free Report)Arm Limited (NASDAQ: ARM) is a global semiconductor IP company best known for designing energy-efficient processor architectures and related technologies that underpin a wide range of computing devices.