US Merger Reviews Accelerate

Latest Market Alert | 24 July 2026

Executive Summary

The US Department of Justice has announced changes designed to streamline the merger review process, allowing some lower-risk transactions to progress more quickly while maintaining full scrutiny where competition concerns remain.

According to Reuters, the revised approach aims to improve efficiency by requesting more targeted information earlier in the review process, while retaining the ability to seek additional evidence where necessary. The reforms are intended to reduce unnecessary delays for transactions that present limited antitrust risk. (reuters.com)

Why it Matters

For businesses pursuing acquisitions, disposals or strategic investments in the United States, greater procedural efficiency could improve deal certainty and financing timetables.

However, transactions involving market concentration, national security, critical infrastructure, technology or significant consumer impact are still likely to face extensive regulatory review.

Potential commercial implications include:

  • improved certainty for lower-risk transactions;
  • reduced financing uncertainty during due diligence;
  • greater emphasis on submitting complete information at an early stage;
  • continued risk of remedies, conditions or litigation for more complex mergers;
  • differing regulatory outcomes between the US, UK and EU.

UK Impact

UK businesses acquiring US companies—or seeking US investment—may benefit from shorter review periods where competition issues are limited.

However, cross-border transactions may still require approval from the UK Competition and Markets Authority, the European Commission and other national regulators, each applying different legal tests and enforcement priorities.

Global Impact

International transactions increasingly require approval across multiple jurisdictions.

A transaction cleared promptly in the United States should not be assumed to have an equally smooth path elsewhere, particularly where technology, defence, infrastructure, data or strategic assets are involved.

Our View

The revised process may improve efficiency, but it does not reduce regulatory risk.

Recommended actions:

  • Identify every jurisdiction requiring merger approval.
  • Begin competition analysis before signing transaction documents.
  • Build realistic regulatory timelines into financing arrangements.
  • Avoid relying solely on US approval when assessing deal certainty.
  • Prepare comprehensive market and customer information early.
  • Consider whether regulatory remedies could affect transaction value.

Risk Indicator: Medium / High

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