In a spectacular turn, on September 3, 2024, the Court of Justice of the European Union annulled the European Commission’s decision to review the acquisition of Grail by Illumina. The Commission had previously asserted its authority to examine the merger under Article 22 of the EU Merger Regulation, despite the transaction not meeting the EU or national turnover thresholds for review.

This ruling is significant because it challenges the Commission’s ability to review transactions that do not meet the relevant EU or national thresholds but are referred by EU Member States. This could impact how future mergers are reviewed within the EU, as the Commission is likely to find alternative ways to review transactions that do not meet the relevant EU or national thresholds.

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