Jonathan Parker

jonathan.parker@lw.com

+44.20.7710.4513

"He has in-depth knowledge of UK competition law and is extremely pragmatic and fast."

Chambers UK 2025

"Confident presence on calls and has the knowledge and charisma to put the minds of some of the more sophisticated clients in the world at ease."

Chambers UK 2025

"Complete encyclopedic knowledge of merger law, is extremely level-headed and has a very quick intellect."

Chambers UK 2025

"Knowledgeable with amazing insights into the CMA's operations. He has been instrumental in the successful outcome of our cases."

The Legal 500 UK 2025

Ranked – Competition Law

Chambers UK 2025

Leading Partner – EU & Competition

The Legal 500 UK 2025

"Active in merger clearance mandates, including representing clients in phase II investigations before the CMA."

Chambers UK 2024

"Impressive track record working on high-profile and complex matters."

The Legal 500 UK 2024

"He has a calm and clear way of explaining things."

Chambers UK 2023

"Really digs deep into his legal analysis and I find his arguments to be clearly expressed."

Chambers UK 2023

Profile

Jonathan Parker is a partner in the Antitrust & Competition Practice in Latham & Watkins’ London office focusing on European and UK competition law.

He advises clients on a wide range of EU and UK competition issues, including mergers and acquisitions, market studies, cartels/restrictive agreements, and abuse of dominance cases.

Prior to joining Latham, Jonathan worked as a Legal Director and Director of Mergers at the UK Competition and Markets Authority (CMA). He is renowned in the market for deploying his considerable experience and institutionalized thinking on UK merger control matters.

He is a member of the Competition Law Committee of the City of London Law Society.

Experience

Jonathan's experience includes advising:

Viasat in relation to its acquisition of Inmarsat
Advanced Micro Devices (AMD) in its acquisition of Xilinx
NVIDIA in relation to its proposed acquisition of Arm
Meta in relation to its proposed acquisition of Giphy
KKR regarding the CMA’s investigation into its acquisition of OverDrive
iZettle in relation to the CMA’s Phase 2 investigation into its acquisition by PayPal
Rowan Companies in relation to the CMA’s investigation into its merger with Ensco
Electro Rent Corporation in relation to the CMA’s Phase 2 investigation of its acquisition of Microlease Inc and the subsequent CAT appeal
Integra LifeSciences of the CMA’s investigation into its acquisition of Codman’s Neurosurgery business
Survitec Group in relation to the CMA’s investigation into its acquisition of the marine safety business of Wilhelmsen Maritime Services AS
Hytera Communications in relation to the Secretary of State’s public interest intervention regarding its acquisition of Sepura
ACCO in relation to the CMA’s investigation into its acquisition of Esselte
Bain Capital in relation to the CMA’s investigation into its acquisition of Gruppo Cordenons
GTCR in relation to the UK merger filing for its acquisition of PR Newswire
A global pharmaceutical company in relation to the CMA’s Competition Act investigation into alleged excessive pricing of hydrocortisone tablets
A party in relation to the CMA’s civil and criminal investigation into suspect cartel arrangements in the supply of products to the construction industry