Arm Holdings plc American Depositary Shares (ARMH) are certificates that enable investors to own shares of Arm Holdings plc, a British technological giant, on American stock exchanges. Arm Holdings is known for its semiconductor and technological innovations, particularly in the design of microprocessors and IP cores. The company is a key player in the mobile and embedded industry, thanks to its energy-efficient designs widely used in mobile phones, tablets, embedded systems, and other devices. Investors looking to gain exposure to an innovative technology company with global reach and a significant position in the semiconductor industry may consider investing in the American Depositary Shares of Arm Holdings plc (ARMH).