1. A gatekeeper shall inform the Commission of any intended concentration within the meaning of Article 3 of Regulation (EC) No 139/2004, where the merging entities or the target of concentration provide core platform services or any other services in the digital sector or enable the collection of data, irrespective of whether it is notifiable to the Commission under that Regulation or to a competent national competition authority under national merger rules.

A gatekeeper shall inform the Commission of such a concentration prior to its implementation and following the conclusion of the agreement, the announcement of the public bid, or the acquisition of a controlling interest.

2. The information provided by the gatekeeper pursuant to paragraph 1 shall at least describe the undertakings concerned by the concentration, their Union and worldwide annual turnovers, their fields of activity, including activities directly related to the concentration, and the transaction value of the agreement or an estimation thereof, along with a summary of the concentration, including its nature and rationale and a list of the Member States concerned by the concentration.