A group of four former and current Goldman Sachs executives could together make up to £37.2m (€55m) from the flotation of a UK technology company, and their remaining combined stake in the business is worth another £137m.

Michael Sherwood, co-head of Goldman Sachs' European business, along with senior former Goldman staff including Jonathan Green, co-founder of hedge fund GLG, Sion Kearsey and John Drinkwater, could together make up to £37.2m from the share sale of Cambridge-based telecoms company Sepura.