Carsten Kengeter, chief executive of Deutsche Börse and the future head of the merged businesses, has denied any involvement in, or knowledge of, the activities of jailed Libor-rigger Tom Hayes.
Kengeter, who worked at UBS at the time of Hayes’ offences and was latterly co-head of its investment bank, said: “The allegations are false.”
It is understood that UBS wrote to Kengeter at the end of last year, following its internal investigation by law firm Gibson Dunn, saying that report concluded he “neither approved nor had personal awareness of the misconduct”, by Hayes.