City heavyweights from Goldman Sachs, Robey Warshaw, Lazard and UBS are behind Japanese firm SoftBank's £24 billion move for UK chip designer ARM Holdings in a takeover that dealmakers hope signals the start of an upsurge in inbound mergers and acquisitions activity post-Brexit vote.

Japanese technology company SoftBank confirmed on July 18 that it had agreed to buy UK-based ARM Holdings in a deal worth £24.3 billion, marking the largest-ever Asian investment into the UK. The takeover bid comes just weeks after markets were rattled following the UK decision to leave the European Union.