Score will retire next May having worked at Arm since 2002 and having overseen the company’s rise into the dominant smartphone chip designer.
“Tim has been, and continues to be an excellent finance chief. He has played a major role in the Arm management team for the last 12 years and it has been a pleasure to work alongside him,” said chief executive Simon Segars.
“I am pleased that he will remain in the company for the next twelve months so that we can identify his successor and ensure a seamless handover.”
Arm said it will appoint search consultants shortly and announce Score’s successor in due course.