The White House unveiled what it says is $600bn worth of defence and artificial intelligence deals with Saudi Arabia, UnitedHealth Group shares sink to the lowest level in more than four years, and US inflation fell to 2.3 per cent in April. Plus, Nissan plans to axe 15 per cent of its global workforce and almost halve its number of plants.

Andrew Witty is stepping down from his position as UnitedHealth's CEO for personal reasons, insurer says in surprise announcement.

Shares of UnitedHealth Group sank sharply on Tuesday as the health insurance giant replaced its CEO and suspended its 2025 outlook.

UnitedHealth Group Chief Executive Andrew Witty stepped down suddenly on Tuesday, the company said, as it suspended its 2025 forecast due to surging medical costs, sending its shares plunging more than 11% in morning trading.

UnitedHealth Group Chief Executive Officer Andrew Witty stepped down, effective immediately, "for personal reasons", the company said Tuesday. “Leading the people of UnitedHealth Group has been a tremendous honor as they work every day to improve the health system, and they will continue to inspire me,” Witty said in a statement shared by UHG.

UnitedHealth Group CEO Andrew Witty is stepping down from his post for personal reasons and the healthcare giant says it’s suspending its full-year forecast due to higher-than-expected medical costs

As CEO for more than a decade, Stephen Hemsley built up UnitedHealth Group, now a $400 billion healthcare behemoth. With his return to the top job, the company will learn whether his playbook still works.