Under EU antitrust law, parent companies are presumed liable for antitrust infringement of their wholly owned subsidiaries. While this presumption is rebuttable, it is unclear what a company must do to rebut it successfully. The recent Air Liquide judgment of the General Court of the European Union marks the first time that a company escaped the presumption of liability, if only for procedural reasons. The judgment also sheds some light on the arguments that may work for a parent company.