Hayden Dunnett is a senior associate in our antitrust, regulatory and trade practice
Hayden is a Senior Associate specialising in UK and EU competition law. Hayden is qualified in England & Wales and Australia.
Hayden has experience across merger control in the UK and EU, investigations and competition litigation. He has particular experience with contentious competition matters in the UK and Australia, having been involved in proceedings before the Commercial Court, Competition Appeal Tribunal, the UK Supreme Court and the Federal and Full Federal Courts of Australia. Hayden's multi-jurisdictional litigious experience spans collective proceedings, follow-on damages claims and regulatory proceedings.
Latest thinking
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Legal development 
BT escapes liability in £1.3 billion class action in UK Competition Appeal Tribunal… for now
23 Dec 2024
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Legal development
Key takeaways from the 3rd NSIA Annual Report
01 Nov 2024
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Legal development
Digital markets regulation in the EU and UK: DMA v DMCC
22 Aug 2024
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Podcasts 
Comparing EU and UK approaches to regulating big tech
22 Aug 2024
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Legal development
DMCC Act: New digital regime for the UK
20 Aug 2024
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Podcasts
Digital markets, competition and consumer law – from legislation to enforcement
01 Aug 2024
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Legal development
DMCC Act: Key changes to the CMA's investigatory powers
24 Jun 2024
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Legal development
DMCC Act: Key changes to the UK's merger control regime
18 Jun 2024
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Legal development
UK Competition Appeal Tribunal approves first significant class action settlement
30 May 2024
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Legal development
Royal Assent for the DMCC Act: what do you need to know?
24 May 2024
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Legal development 
Litigation Trending: Second reading in the House of Lords for legislation that reverses PACCAR
19 Apr 2024
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Legal development
UK Court of Appeal confirms the CMA's information gathering powers apply extra-territorially
31 Jan 2024
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Latest news, deals and awards
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News Ashurst advised Oxford Properties on first joint venture with AustralianSuper
19 Feb 2025
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News Ashurst advises Tasheel Holding on sale of Arena Events Group to Modon
11 Feb 2025
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News Ashurst advises Tritax EuroBox plc on £557 million takeover by Brookfield Asset Management
10 Oct 2024
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