Cookies on our website

We use cookies on our website. To learn more about cookies, how we use them on our site and how to change your cookie settings please view our cookie policy.

Read more Close
Skip Ribbon Commands
Skip to main content
Sign In

People

Contact details

Allen & Overy LLP
One Bishops Square
London
E1 6AD
United Kingdom

Telephone icon+44 20 3088 4414
Send email

Download contact detailsDownload contact details View officeView office

  Philip Mansfield

Partner

London

Philip Mansfield is a senior partner in Allen & Overy LLP's London antitrust group, who splits his time between the London and Brussels offices. He has led meetings with agencies around the world on merger, cartel and behavioural matters for various clients, including with the European Commission, UK agencies, U.S. Department of Justice, U.S. Federal Trade Commission, U.S. Court of North California, South Korea's Fair Trade Commission, Japan Fair Trade Commission and China's Ministry of Commerce.

Philip regularly obtains approval for complex mergers and joint venture arrangements, particularly in the high-tech sector and was a winner of the Global Competition Review Matter of the Year in both 2011 and 2012 for merger-related cases. His experience includes advising: HP on its acquisition of Apogee; Cisco on the sale of its NDS business; Hitachi on a number of large M&A transactions including the acquisition of JR Automation and Chassis Brakes International; Sun Microsystems on its acquisition by Oracle; Seagate on its acquisition of Samsung HDD and Xyratex; and Github on its sale to Microsoft.

Philip has extensive cartel experience and is a regular speaker at the signature IBA/ABA cartel conference. In 2016 Philip won Global Competition Review Behavioural Matter of the Year for the firm’s role on the European Commission’s credit defaults swap investigation. Matters include advising a party in the first EU settlement case (DRAM); as well as advising parties in each of the FX, Rubber Chemicals, EPDM, Heat Stabilisers, GIS, Power Transformer, LCD, CRT and Auto Parts investigations. More recently Philip has developed extensive experience in advising financial institutions on a number of cartel investigations and Financial Conduct Authority market studies, including strategies surrounding the merits of making immunity/leniency applications to the UK Competition and Markets Authority and the EC and engaging in settlement discussions with the EC. Philip recently successfully guided Newton Investment Management Limited (part of BNYM) through the Financial Conduct Authority’s first ever investigation brought using its competition enforcement powers. He is currently advising clients on their defences to several separate follow-on damages actions before the English and German courts and has represented claimants in the English courts.

Philip has an established track record of representing companies in successfully raising and defending behavioural complaints before the EC and the UK courts relating to interoperability (Sun Microsystems/Microsoft, PSI/IBM), bundling (Microsoft/Opera, Microsoft/Vista), patent pools (Premaitha, DVD6C/iODRA) and patent ambush (Micron/Rambus).

“Philip Mansfield is a seasoned expert in competition law who is highly respected for this profound ability in merger and behavioural issues” - Who’s Who Legal 2019

"I have been very impressed with Philip Mansfield. He is on the ball, very pragmatic and keeps up to date - he is someone I like to work with" - Chambers UK 2017 (Competition)

Clients report that Philip Mansfield "has a wonderful ability to synthesise competing considerations into clear, practical advice in high-pressure situations" - Chambers UK 2018 (Competition)

Professional qualifications

Admitted as solicitor (England and Wales), 1995

Admitted as solicitor (Ireland) 2018

Academic qualifications

MA, Downing College, Cambridge University

Find a lawyer


  • Expertise


  • Search Clear


  • Add comment (optional)