TransferWise, the London-headquartered international money transfer service, is disclosing that it is now valued at $5 billion by private investors, confirming an earlier Sky News report. The new valuation represents an increase of 43% since May 2019, and has been triggered by a further $319 million in secondary share sales. Leading the “secondary” share round — which sees existing shareholders, including employees, permitted to sell a portion of their holdings to other new and existing investors, and therefore means no money has entered TransferWise’s balance sheet — is new investor…