Léna Sersiron

Baker & McKenzie SCP


Léna Sersiron is a partner in Baker McKenzie's Paris office, where she heads the Competition & Distribution practice and co-heads the Compliance & Risk Management group. Prior to joining the Firm in 2003, she managed the competition and distribution group of a leading law firm in Paris. Ms. Sersiron is a member of the Association Française d’Etude de la Concurrence (French branch of the International League for Competition) and the Association des Professionnels du Droit de la Concurrence (Competition Law Association), and frequently speaks at various law conferences and seminars.

Practice Focus

Ms. Sersiron focuses her practice on French and European competition and distribution law matters. She advises on abuses of dominant position and merger control issues, and assists in cartel investigations, litigation before the French Competition Authority and the Paris Court of Appeals, and other compliance programs. She also has significant experience in horizontal cooperative agreements, vertical restraints and distribution networks.

Professional Honors

  • Recommended in Competition Lawyers & Economists - Who's Who Legal France 2016
  • One of the few "Best Lawyers" in France for Competition / Antitrust law - Best Lawyers 2014-2016
  • Band 3 in Competition/European Law - Chambers Europe (France) 2015
  • "Highly recommended" for competition law - Décideurs, Stratégie, Finance, Droit 2015
  • "Excellent" in Distribution,"Highly recommended" in Competition - Décideurs 2014/2015
  • Band 4 in Competition/European Law - Chambers Europe (France) 2014
  • Band 1 in Distribution law - Décideurs, 2014 and 2013
  • Band 2 in Competition law - Décideurs, 2014 and 2013
  • "Up and coming" lawyer in Competition/European Law - Chambers Europe (France) 2013
  • Rising competition lawyer - Legal 500 Paris, 2009

Professional Associations and Memberships

  • International League of Competition Law - French Branch
  • Paris Bar Association - Member
  • Competition Law Association - Member


  • Paris~France (2000)


  • University of Paris I (Pantheon-Sorbonne) (DEA) (1997)
  • E.F.B. (Bar Exam) (1997)
  • University of Paris I (Pantheon-Sorbonne) (Maitrise) (1996)
  • University of Paris I (Pantheon-Sorbonne) (License Law) (1995)


  • English
  • French