The reports follow hot on the heels of similar rumours that Dermot Desmond, Ireland's third-richest man, had also acquired a minor stake in Manchester United.
With investor rumours rife at the club, there has been mounting speculation in recent months that a bidder would emerge to take majority control of the club.
According to the media reports, Manchester United's lawyers have been working through the list of shareholders in an attempt to identify the beneficial ownership of a number of shareholdings.
According to media reports, an investor bought more than £2million ($3.4m) of shares in English soccer club Manchester United through the Geneva-based arm of an international bank.
