1. Member States shall ensure that, where the parent undertaking of one or more insurance or reinsurance undertakings is a mixed-activity insurance holding company, the supervisory authorities responsible for the supervision of those insurance or reinsurance undertakings exercise general supervision over transactions between those insurance or reinsurance undertakings and the mixed-activity holding company and its related undertakings.

1a. Member States shall in particular ensure that, where the parent undertaking of one or more insurance or reinsurance undertakings is a credit institution, an investment firm, a financial institution, a UCITS management company, an AIFM, an institution for occupational retirement provision or a non-regulated undertaking which carries out one or more of the activities referred to in Annex I to Directive 2013/36/EU where those activities constitute a significant part of its overall activity, the supervisory authorities responsible for the supervision of those insurance or reinsurance undertakings exercise general supervision over transactions between those insurance or reinsurance undertakings and the parent undertaking and its related undertakings.