LAWYER PROFILE
Marcio Soares

Marcio Soares

Global 2026

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Ranked in 1 practice area

About

Provided by Mattos Filho

Global

Practice Areas

Antitrust; Corporate Investigations

Career

Marcio has extensive experience in competition matters, representing domestic and foreign clients from various sectors of the economy before the Administrative Council for Economic Defense (Cade) in merger cases, investigations of anticompetitive conduct – especially cartels and abuse of dominant position – negotiating leniency agreements and cease-and-desist agreements (TCCs), as well as in antitrust-related lawsuits and arbitration, competition compliance and general antitrust counseling.

Marcio serves as co-Chair of the Mergers Working Group of the International Bar Association’s (IBA) Antitrust Committee, co-Chair of the Task Force on Competition and Sustainability of the Antitrust Committee of the ICC-Brazil and is a member of the International Committee of the Antitrust Section of the American Bar Association (ABA). Marcio has authored a number of specialized articles on antitrust law published in Brazil and abroad.

Education

Universidade do Estado do Rio de Janeiro (UERJ)

Bachelor of Laws

Universidade do Estado do Rio de Janeiro (UERJ)

Postgraduate Degree in Private Law

Columbia Law School

Master of Laws (LL.M.)

Languages Spoken

English

Portuguese

Chambers Review

Provided by Chambers

Chambers Global Guide

Competition/Antitrust - Brazil

Band 1
Band 1

Individual Editorial

Renowned partner Marcio Soares is held in high esteem by clients and peers for his adept handling of a wide range of competition mandates, including sophisticated merger control proceedings and complex investigations before CADE.

Strengths

Provided by Chambers

  • Marcio worked brilliantly on a project of high relevance and complexity for our company.

    Competition/AntitrustChambers Global Guide
  • Marcio is incredible. He is very informative and has strong commercial awareness. He is straightforward and technical.

    Competition/AntitrustChambers Global Guide

Ranked Individuals at Mattos Filho (78)

Brazil

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