skip to main content

ProfessionalsLauren O'Brien

Lauren O'Brien
Counsel

Tel: +44-20-7601-8648
Fax: +44-20-7681-2495
lobrien@paulweiss.com

+44-20-7601-8648
London

20 Air Street
London, United Kingdom W1B 5AN
Fax: +44-20-7681-2495

+ vCard ADD TO CONTACTS
Education 
Bar Admissions 
Education 
Bar Admissions 

A counsel in the Litigation Department and member of the Antitrust & Foreign Investment group, Lauren O’Brien has experience across a range of EU, UK and multi-jurisdictional competition and foreign investment matters, including merger control, foreign investment filings, behavioural competition matters, consumer law and compliance.

Lauren has assisted clients with merger control filings and antitrust proceedings across multiple jurisdictions, with particular experience before the UK’s Competition and Markets Authority and the European Commission. Her experience spans many industry sectors, with a particular focus in pharmaceutical and life sciences, technology, consumer goods and retail, financial services and funds.

EXPERIENCE

Some of Lauren’s recent engagements include representing:

  • EP Group on its recommended cash offer for International Distribution Services (IDS), the parent company of the UK's Royal Mail and international parcels network GLS
  • Outbrain Inc. on the merger control aspects of its proposed acquisition of Teads S.A., both recognized players in in digital adtech

Prior to joining Paul, Weiss, Lauren’s matters included:

  • TDR Capital in relation to the sale of LeasePlan to ALD Automotive
  • Thermo Fisher Scientific Inc. in relation to the acquisition of The Binding Site
  • Dialog Semiconductor plc in relation to its acquisition by Renesas Electronics
  • BP plc in relation to the sale of its petrochemicals business to INEOS Group
  • Just Eat plc in relation to the CMA’s investigation into its acquisition byTakeaway.com N.V.
  • Sainsbury’s plc in relation to its £17bn attempted acquisition of Asda

© 2025 Paul, Weiss, Rifkind, Wharton & Garrison LLP

Privacy Policy