Niklas Maydell advises on all aspects of antitrust/competition law.

His practice focuses on complex EU and international merger control proceedings, cartel investigations, abuse of dominance cases, and cooperation agreements, including IP licensing arrangements.

He regularly counsels clients in EU law-related litigation and arbitration proceedings, as well as sector-specific EU regulatory matters. Niklas’ experience covers a range of industries, including, pharmaceuticals, energy, IT and high-tech, finance, consumer and luxury goods, and industrials.

Prior to joining Cleary Gottlieb, Niklas worked for the European Commission’s Directorate-General for Trade and as an assistant professor at the Vienna University of Economics.

Notable Experience

Selected Antitrust/Competition Law Matters

  • Alstom before the European Commission and multiple other antitrust agencies globally in its pending €15 billion combination with Siemens’ Mobility Business.

  • A leading oil & gas major in EU antitrust proceedings, including dawn raids. 

  • Samsung Electronics before the European Commission and several other key antitrust regulators in its $1.05 billion sale of its worldwide printer business to HP Inc, including in respect of a remedies package negotiated with China’s MOFCOM.

  • A top-tier chemicals supplier in an EU investigation into alleged abuse of dominance conduct. 

  • LVMH Group in its €640 million acquisition of RIMOWA, a German high-end luggage manufacturer.

  • Allergan before the European Commission and multiple other antitrust agencies globally in connection with Allergan’s proposed $160 billion merger with Pfizer and with the industry-transforming $39 billion sale of its generic pharmaceuticals business to Teva.

  • Lafarge before the European Commission in connection with its €40 billion merger with Holcim, creating the world’s largest cement supplier, as well as in connection with Lafarge’s and Holcim’s €6.5 billion asset disposal to CRH, one of the largest remedies packages ever negotiated with the European Commission.

  • Gazprom in its $2 billion complex asset swap with Wintershall, involving an exchange of interests in Russian gas fields for European gas production, distribution and storage assets.

  • Recticel S.A., Europe’s leading PU foam supplier, in an EU cartel investigation, concluded as one of the first settlement cases before the European Commission.

  • ENI S.p.A. in abuse of dominance proceedings before the European Commission concerning the operation of several international natural gas pipelines.

  • EMC Corporation in merger control proceedings before the German Federal Cartel Office concerning the acquisition by CPTN, a consortium of EMC, Microsoft, Apple and Oracle, of a large patent portfolio from Novell.

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Selected Litigation/Arbitration Matters

  • A leading oil & gas company in SCC arbitration proceedings involving Articles 101 and 102 TFEU.

  • A global pharmaceutical company in arbitration proceedings resulting from the implementation of EU commitments following a conditional merger control approval.

  • Gazprom in an UNCITRAL arbitration against the Republic of Lithuania under the Russia-Lithuania bilateral investment treaty concerning ownership unbundling in implementation of the EU Third Gas Directive.

  • ArcelorMittal in commercial arbitration proceedings in relation to a steel mill project in Central Europe.

  • Danske Statsbaner (DSB), the national Danish railway company, in successful trademark litigation before the European Court of Justice.

  • European Central Bank (ECB) before the European Court of Justice, in proceedings initiated by the UK Government concerning certain TARGET 2 ECB guidelines.

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Selected Activities

Member, Studienvereinigung Kartellrecht e.V., Germany’s leading antitrust community


“The EC’s Gazprom Investigation”, Energy Community Secretariat, December 4, 2017.

ABA: International Antitrust Developments Initiative, November 29, 2017.

“Parallel Trading,” IBC Pharma Law Academy 2016, University of Cambridge, September 15, 2016.

“IT Innovation and Antitrust,” #Regulation4Innovation, European Parliament, together with European Commissioners Margrethe Vestager and Carlos Moedas, May 24, 2016.

“Enforcement Under Article 102 TFEU in the Energy Markets,” 9th Annual EU Energy Law and Policy Conference, Brussels, February 12, 2014.

“Autonomous and Treaty-based EU Regulation of Foreign Investment After Lisbon,” Conference on International Investment Regulation in the European Union After Entry Into Force of the Lisbon Treaty, University of Tübingen, Germany, September 18, 2009.