David Weaver
Senior Associate
London

David Weaver
Senior Associate
London
Contact Details
David is a senior associate in our London antitrust group who regularly advises clients on all aspects of competition law, with a particular focus on obtaining UK and international merger control clearances on complex M&A transactions.
David advises across a wide range of sectors, with particular expertise in retail, technology and financial markets, and broad experience advising a range of private capital institutions.
David is also an experienced adviser on multi-jurisdictional foreign investment and national security clearances, including routinely advising on substantive UK National Security and Investment Act approvals.
David has experience as a legal adviser at the UK Competition and Markets Authority, where he advised on a complex Phase 2 merger investigation and gained invaluable insight into CMA processes and ways of working that can inform strategic decisions. He has also spent time in Allen & Overy’s office in Brussels.
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Academic
Related articles

Publications: 21 November 2022
UK national security block of Newport Wafer Fab acquisition
The UK government has announced that it will require Chinese-owned technology company Nexperia BV to sell the 86% shareholding it acquired in July 2021 in the UK’s largest semiconductor plant, Newport…
Publications: 23 September 2022
The National Security and Investment Act 2021: A Snapshot of experience so far
Publications: 27 July 2022
The National Security and Investment Act 2021: The first market guidance notes
Publications: 12 January 2022
How are government national security probes affecting technology transactions across the world?

Expertise
Practices
Qualifications
Professional
Academic
Published work
- “Rising tide of ‘Fix-it-first’ and ‘Up-front Buyer’ remedies in EU and UK merger cases”, Allen & Overy LLP, September 2016.
- “UK merger control: A toughening of the voluntary regime?”, Allen & Overy LLP, July 2019
- “How should antitrust authorities investigate deals that threaten potential competition? Nascent competition in the UK – all about the potential”, Allen & Overy LLP, July 2021
- “The National Security and Investment Act 2021: A Snapshot of experience so far”, Allen & Overy LLP, September 2022