Owner of UK chip designer Arm may float some of firm’s shares in London

Boris Johnson has joined lobbying efforts for a UK listing of Arm, which is based in Cambridge. Photograph: Arm Holdings/PA

The Japanese owner of the British chip designer Arm is reportedly planning to float some of the company’s shares in London, in a sign the government’s efforts to lobby for a UK listing of the Cambridge-based company may have succeeded.

SoftBank, which bought the chip company for $32bn in 2016, is said to be reconsidering earlier plans to only list shares on the US market.