(9)It is essential that potential investors assessing an outstanding offer of equity securities or depository receipts are in a position to compare the terms and conditions of such an offer with the price or exchange terms attached to any public takeover bid announced during the offer period. Moreover, the result of a public takeover bid is also significant for the investment decision as investors need to know whether it implies or not a change in control of the issuer. In those cases, therefore, a supplement is necessary.