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In November 2025, there were three Rule 2.7 announcements made across the UK public M&A market and eight further possible offers announced.
CMA finalises changes to its merger control guidance on jurisdiction and procedure
The Competition and Markets Authority (CMA) has published its updated guidance on jurisdiction and procedure (CMA2) and updated Merger Notice template.
In June 2025 the CMA launched a consultation on a number of proposed changes to its merger control guidance in order to reflect the 4P’s framework – pace, predictability, process and proportionality – embedded in the CMA’s new Mergers Charter. The changes have been made in response to the Government’s Strategic Steer, which called for the CMA to contribute to its overriding national priority of economic growth, prioritise pro-growth/pro-investment interventions and minimise uncertainty.
The updated guidance:
You can read more about the changes to CMA2 in our competition notes blog here.
The CMA is also currently consulting on its guidance to merger remedies (see our blog here for further details). The consultation is open until 13 November 2025, and the final remedies guidance is expected to be published by the end of the year.
November has seen activity that is fairly consistent with the same period across the previous five years. There has been a slight increase in the number of possible offers, up from six to eight, making 2025 the year with the highest number of possible offers in the last five years. The number of firm offers in November 2025 matched those announced during the same period in 2024. By sector, finance was particularly active, accounting for three firm offers and one possible offer.
2025 has been an active year for UK public M&A, but it has not quite matched the highs of 2024 in terms of value. While deal volumes remain similar, the average deal value so far in 2025 is lagging behind last year’s impressive figures. So far, 2025 has recorded eleven transactions valued at over £1 billion, whereas 2024 saw seventeen deals surpass that milestone. It will be interesting to see whether December activity closes the gap and how the year ultimately wraps up.
Partner, London
Partner, London
Partner, Head of M&A, London
Partner, London
Partner, London
Knowledge Counsel, London
Partner, London
Partner, London
The contents of this publication are for reference purposes only and may not be current as at the date of accessing this publication. They do not constitute legal advice and should not be relied upon as such. Specific legal advice about your specific circumstances should always be sought separately before taking any action based on this publication.
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