The Financial Services Authority, the UK regulator, has closed its investigation into suspicious dealings in the shares of Marks & Spencer which took place around the time of Philip Green's failed putative £9.1bn (€13.4bn) takeover offer for the UK retailer in May.

A spokesman for the FSA said the investigations, which were triggered in June by "suspicious price movements" in M&S shares prior to the approach by Green's takeover vehicle Revival Acquisitions, but had uncovered "nothing untoward".