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Brian A. Ratner

Brian Ratner is a Partner at Hausfeld and Head of the firm’s International practice. He also serves on the firm’s Management Committee and leads the firm’s global business development efforts. Brian has extensive experience representing U.S. and international businesses in complex litigation at the trial and appellate levels. He is particularly experienced in litigating and resolving antitrust claims in U.S. and European courts, recovering over $100 million for his corporate clients in the last year alone.

Brian’s broad experience demonstrates his ability to tackle and find solutions for the most novel legal issues, as well as represent his clients at all stages of global antitrust litigation, whether in the discovery, damages, trial, appeal or settlement phase, or whether in the U.S., Europe, or globally. This unique combination enables him to counsel and act for clients comprehensively, in a commercially sensitive manner, and wherever necessary.

Plus Moins


Indiana University- Bloomington, B.A.J., 1996

University of Pittsburgh School of Law, J.D., 1999

Bar des Admissions


New Jersey

District of Columbia

Cour suprême des États-Unis

Plusieurs cours fédérales

Affiliations et honneurs

Managing Editor, Journal of Law and Commerce

Nouvelles et presse

"Jury Finds Chinese Vitamin C Makers Fixed Prices; $153.3M Judgment Entered," Mealey's Legal News & Litigation Reports, March 14, 2013

Hausfeld LLP Named as Tier 1 Firm Nationwide in Plaintiff Antitrust Litigation by The Legal 500, June 2012

"Hausfeld, Hausfeld, Hooray," Legal Bisnow, April 6, 2012

"Brian Ratner, People on the Move,"  Washington Business Journal, April 4, 2012

Rising Star: Hausfeld's Brian Ratner, Law360, March 22, 2012

"U.S. Class Action Lawyers Look Abroad," Reuters, March 20, 2012

"Chinese Cos. Can't Shake Vitamin C Antitrust MDL", Law360, September 7, 2011

Analysis: Private antitrust lawsuits on the decline in U.S.”, Reuters, June 13, 2011

"Plaintiffs' antitrust bar," Global Competition Review, June 30, 2014

Hausfeld LLP Announces Distribution of Settlement Funds in TAQ Antitrust Case, November 19, 2009

Vitamins cartel action filed against Roche in Panama,” Law360, September 11, 2009

2009 Legal Times “40 under 40” list recognizing rising legal stars in Washington, July 14, 2009

Private settlements could gain steam, lawyers say,” Law360, March 12, 2009

Unprecedented Global Settlement Reached with Parker ITR in Marine Hose Cartel,” Class Action Litigation, March 13, 2009

Hausfeld LLP announces first-ever private settlement of global cartel, March 6, 2009

“‘Shell Model’ Opens Door to European Class Actions,” The American Lawyer, January 7, 2008

Hausfeld LLP Named as Tier 1 Firm Nationwide in Mass Tort and Class Action: Plaintiff Representation - Antitrust by The Legal 500, July 2014

Hausfeld LLP Named as one of the top three U.S. firms in Antitrust Plaintiff Representation by The Legal 500, July 2013

"Bar hopping," Global Competition Review, June 30, 2014

Super Lawyers Recognizes Six Hausfeld AttorneysSuper Lawyers, April 25, 2014

Super Lawyers Recognizes Thirteen Hausfeld AttorneysSuper Lawyers, April 17, 2015.

The Legal 500 Names Hausfeld to Top Tier of Firms in Antitrust for Seventh Year, The Legal 500, July 7, 2016. 

"Chambers & Partners, The Legal 500, and Global Competition Review Laud Hausfeld in Competition Law,The Legal 500, June 8, 2017

"What It Takes to Dominate in the Elite Game of International Litigation" The American Lawyer, September 28, 2017


Co-auteurs, Michael Hausfeld et Brian Ratner, "Prosecuting Class Actions and Group Litigation - Understanding the Rise of International Class and Collective Action Litigation and How this Leads to Classes that Span International Borders," World Class Actions, Chapitre 26, septembre 2012

Co-auteur, "Principles and Objectives of Formal and Informal Settlements in EU Competition Cases: The Claimant’s Perspective," document soumis pour le 13ème Atelier en Politique et Droit concurrentiel de l’Institut universitaire européen, publication disponible prochainement

Co-auteur, “A Proposal for a Transitional Forum,” soumis lors de la conférence des réclamations d’anti-monopole à l’encontre des firmes et des cartels étrangers (Law Seminars International), 7-8 septembre 2006

Co-auteur,chapitre 39: USA, The International Comparative Legal Guide to Cartels & Leniency, 2014

Co-auteur, Brian A. Ratner et Sathya S. Gosselin, The Novelty of Wal-Mart v. Dukes, American Bar Association, Business Torts & Civil RICO Committee, Business Torts & RICO News, Vol. 8, numéro 1, Printemps 2011

Présentations et discours

Intervenant de panel, "Private Enforcement: New International Approaches and Developments," Northwestern Law, (May 20, 2015) 

Leader de panel, “Delivering Substantial Shareholder Returns Through Cartel Damages Litigation, on a Risk-Free Basis and with No Financial Investment,” 10th Corporate Counsel & Corporate Compliance Exchange, (April 7-9, 2014) 

Intervenant de panel, "Global antitrust litigatiion - A brave new world," GCR Live 5th Annual Antitrust Law Leaders Forum, (February 5-6, 2016) 

Intervenant de panel, "International- Private Antitrust Enforecment Around the Globe," AAI 11th Annual Private Antitrust Enforcement Conference (November 7, 2017)

Nouvelles et articles de presse assocIés