The present work focuses on the principle of relative responsibility set in the Damage Directive 2014/104/EU. The principle of relative responsibility “supposes a modulation (that does not qualify) to the principles of full compensation and joint and several liabilities insofar as it channels that responsibility, on the one hand, according to the criteria of the participation of the offender in the conduct that violates the rules of competition from its infringing participation fee; and on the other, it delimits and limits this responsibility based on the cooperation that the aforementioned offender has had on the basis of the leniency programs or the possible agreements reached with the injured parties."