US president signals he may cut billionaire’s contracts with the federal government

Assault comes days after raid by Kyiv destroyed more than a dozen of Moscow’s strategic bombers

Hedge fund tightens flexible working after period of poor performance for its systematic investing arm AHL

Letter sent to new recruits is latest escalation of US bank’s battle with private equity over junior talent

Microsoft-backed UK tech unicorn hired reputational management specialists after FT reported on founder’s legal issues