Robert Tchenguiz has hit out at "unfounded speculation" linking him with the sale of his stakes in managed pub operator Mitchells & Butlers (M&B) and J Sainsbury's.
The investor, though his investment vehicle R20, holds a 14% stake in M&B and more than 76 million shares.
Tchenguiz said: "Unfounded speculation is a disservice to other shareholders. Both companies have significant value in excess of current valuations and both have a strong future."
He added that as a significant shareholder he and his investment vehicle R20 would continue its policy of working with the M&B board in order to realise its potential for attractive shareholder returns.
Tchenguiz was forced to abandon a £4.5b property joint venture with the operator back in September due to the current global credit crunch.
By Christopher Walton