1. Without prejudice to the provisions on supervision contained in the sectoral rules, Member States shall provide for the supplementary supervision of the regulated entities referred to in Article 1, to the extent and in the manner prescribed in this Directive.

2. The following regulated entities shall be subject to supplementary supervision at the level of the financial conglomerate in accordance with Articles 6 to 17:

(a) every regulated entity which is at the head of a financial conglomerate;

(b) every regulated entity, the parent undertaking of which is a mixed financial holding company which has its head office in the Union;

(c) every regulated entity linked with another financial sector entity by a relationship within the meaning of Article 12(1) of Directive 83/349/EEC.