


Jacquelyn MacLennan
Jacquelyn MacLennan is a former partner in global law firm White & Case, specialising in EU Competition law, business & human rights/ESG and EU trade issues. She offers a wealth of experience for clients worldwide, representing leading multinational corporations, governments and trade associations. She focuses on EU competition law, and clients benefit from her experience and insight in developing strategy and running major international cartel investigations, as well as advising on complex distribution problems and licensing arrangements, abuse of dominance cases, mergers and joint ventures. Jacquelyn is a core team member of the firm’s Business & Human Rights Interest Group and advises on a wide range of issues related to ESG and sustainability, including corporate supply chain compliance, disclosure requirements, and Business & Human Rights issues generally. She also advises on EU customs and trade law, international sanctions, and EU regulatory requirements, notably in respect to product safety and environmental regulation. With an impressive track record of experience and know-how, Jacquelyn litigates regularly before the EU and UK courts, and represents clients before the European Commission. Jacquelyn has accumulated substantial management experience over her career; she has been a Member of the Partnership Committee (the main governance body) of White & Case, a Member of the Executive Committee (responsible for the firm’s strategy), and Executive Partner heading the Brussels office. In October 2015, she became the Global Pro Bono Practice Leader. Clients describe Jacquelyn as "excellent – an industry leader in antitrust matters" and "commercially-minded and solution-oriented." (Chambers Europe, 2016)
Distinctions
Winner, 2021 Antitrust Writing Awards: Business, Procedure.
Nominee, 2020 Antitrust Writing Awards: Business, Mergers.
Nominee, 2019 Antitrust Writing Awards: Business, Concerted Practices.
Nominee, 2018 Antitrust Writing Awards: Business, Unilateral Conduct.
Nominee, 2017 Antitrust Writing Awards: Business, Procedure.
Nominee, 2016 Antitrust Writing Awards: Business, Procedure.
Winner, 2014 Antitrust Writing Awards: Business, Private Enforcement





Linked authors
15801 | Events


Articles
8609 Bulletin
331
UK clampdown on greenwashing As the importance of sustainability and eco-friendliness grows among consumers worldwide, the UK Competition and Markets Authority (CMA) has concerns that an increasing number of businesses misleadingly market their products and services as environmentally (...)
289
On 26 May 2021, the UK Competition and Markets Authority announced that it would not undertake a market investigation reference on the back of its study into the electric vehicle charging market and will instead propose a package of remedies to address the issues found during the course of the (...)
501
On 6 May 2021, the European Commission ("Commission") published a staff working document ("SWD") on its evaluation of the horizontal block exemption regulations on research & development and specialisation agreements ("H-BERs") and the horizontal guidelines. The SWD is accompanied by an (...)
1084
Fundamental rights are an integral element of the rule of the law, and any system which purports to respect the rule of law must be seen to respect the fundamental rights of the individuals subject to it. At this particular moment, with the COVID-19 pandemic, fundamental rights are an issue of special debate and concern.
332
Competition authorities around the world typically place considerable weight on parties’ internal documents when assessing the potential effects of a merger. Such documents, many of which can pre-date the companies’ decision to enter into a transaction, are often regarded as conveying the (...)
1731
The Commission Decisions In February 2017, the Commission initiated proceedings against Asus, Denon & Marantz, Philips and Pioneer following information obtained during the e-commerce sector inquiry. The Commission’s report had identified resale price maintenance as an area of concern, (...)
929
On 18 April 2018, the Competition and Markets Authority issued updated guidance on the appropriate amount of penalties to be imposed for infringements of competition law in the UK. This replaces the previous guidance issued by the Office of Fair Trading (which the CMA replaced in 2014) and (...)
893
This article has been nominated for the 2018 Antitrust Writing Awards. Click here to learn more about the Antitrust Writing Awards. On 6 September 2017, the Court of Justice of the European Union ("CJEU" or "Court") essentially held in Intel that the European Commission ("Commission") (...)
642
The European Court of Human Rights (the “ECtHR”) has ruled in the Vinci case that the circumstances surrounding the electronic removal of documents and computer files during a dawn raid violated two companies’ privacy rights enshrined in the European Convention on Human Rights (“ECHR”) . The (...)
149
On 9 April 2014, the European Commission adopted its new Energy and Environmental State Aid Guidelines (the “EEAG”) which will take effect from 1 July 2014 onwards, replacing the Environmental State aid Guidelines (“EAG”) from 2008, which did not cover State aid to the energy sector. The EEAG (...)
233
The level of fines imposed by the European Commission in competition cases has attracted controversy for more than ten years. The often deferential approach of the European courts to hearing appeals has also been criticised, but in many cases the courts have largely left untouched the (...)
325
This article has been nominated for the 2014 Antitrust Writing Awards. Click here to learn more about the Antitrust Writing Awards. Summary On 11 June 2013, the European Commission (“Commission”) adopted a proposal for a directive on how citizens and companies can bring damages claims (...)
391
Today, the Office of Fair Trading ("OFT") launched a review of barriers to entry, expansion and exit in retail banking.[1] The review comes at a time of when the UK Government has significant stakes in a number of major retail banks, which it will wish to divest over time. The purpose of the (...)
779
I. BACKGROUND The European Commission published the 24th February 2009 a Communication containing its long-awaited Guidance Paper on exclusionary abuses under Article 82 C(Commission Communication – Guidance on the Commission’s Enforcement Priorities in Applying Article 82 EC Treaty to (...)
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