The shareholder information provided for in I of Article L. 233-8 shall take the form of a notice published in a medium authorised to carry legal advertisements in the département where the company has its registered office before the expiry of a period of fifteen days from the date of the annual ordinary general meeting or from the date on which the company became aware, between two general meetings, of a change in the total number of voting rights at least equal to the percentage set by the ministerial order referred to in I of the same article.