Jurisdiction(s):
United Kingdom

Related legal acts

Key definition

Merger control definition

What does Merger control mean? Merger control is the review of mergers, acquisitions and certain joint ventures by competition authorities to prevent anti-competitive effects and to clear, condition or prohibit deals. In the UK, it is governed by the enterprise Act 2002 (as amended). The competition and markets authority (CMA) may review completed or anticipated deals where a 'relevant merger situation' arises: enterprises cease to be distinct and either the target’s UK turnover exceeds £70m or the parties meet/increase a 25% share of supply in the UK (or a substantial part). Notification is voluntary, but the CMA can call in transactions and impose...

UK merger control appeals—closed cases tracker under the Enterprise Act 2002 (Competition Appeal Tribunal, Court of Appeal and Supreme Court)

Published by a LexisNexis Competition expert

Practice notes

The summaries below outline completed appeals by UK competition regulators to the Competition Appeal Tribunal, the Court of Appeal and the Supreme Court concerning UK Merger control under the Enterprise Act 2002. For details of live matters, see UK competition appeals—ongoing cases tracker.

Appeals to the Competition Appeal Tribunal

Spreadex Limited v CMA (1753/4/12/25) — Appeal against the CMA’s decision in Spreadex/Sporting Index (remittal), seeking to have the decision set aside. See application.
- Judgment given—19/03/2026; application dismissed
- Lodged—17/10/2025
Aramark v CMA (1766/4/12/26) — Application for extra time under Rule 25(3) of the CAT Rules 2015 to file a notice of application under section 120 of the Enterprise Act 2002 to review the CMA’s decision in Aramark/Entier.
- Judgment given—10/03/2026; application dismissed
- Lodged—20/12/2024
Spreadex Limited v CMA (1700/4/12/24) — Appeal against the CMA’s decision in Spreadex/Sporting Index, seeking to quash the decision and send it back to the CMA. See application.
- Order made; remitted back to the CMA
- Lodged—09/01/2025
Tereos SCA & Tereos UK & Ireland Limited v CMA (1638/4/12/24) — Appeal against the CMA’s refusal of confidential treatment for parts of the CMA proposed text in its phase

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Web page updated on 22/05/2026

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