ARM names new chairman

CHIP designer ARM Holdings said yesterday it had picked John Buchanan to succeed Doug Dunn as chairman.

Buchanan is chairman of artificial knee and hip maker Smith & Nephew, deputy chairman of Vodafone and a senior independent director of BHP Billiton. Dunn, who has been chairman of the Cambridge-based company since 2006, will step down at the group’s AGM on 3 May.