Where a company is controlled directly or indirectly by a joint stock company, it shall notify the latter and each of the companies participating in such control of the amount of the holdings it holds directly or indirectly in their respective capital as well as any changes in that amount.
Notifications shall be made within one month of either the day on which the company became aware of the acquisition of control in the case of securities it held prior to that date, or the day of the transaction in the case of subsequent acquisitions or disposals.