Marcio Soares > Mattos Filho > Rio de Janeiro, Brazil > Lawyer Profile

Mattos Filho Offices

Mattos Filho
​​Praia do Flamengo, 200 11º andar
Rio de Janeiro, RJ , CEP 22210-901
Brazil
Visit website 55 21 3231 8200

Marcio Soares

Marcio Soares photo
+55 21 3231 8120 / +55 11 3147 2701 msoares@mattosfilho.com.br View profile View profile

Work Department

Antitrust / Corporate Investigations

Position

Partner

Career

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

Marcio serves as co-chair of the Working Group on International Cartels of the International Bar Association’s (IBA) Antitrust Committee and is a member of the International Committee of the Antitrust Section of the American Bar Association (ABA). He is also a board member of the Brazilian Institute for the Study of Competition, Consumption and International Trade (Ibrac). Marcio is a guest professor in Fundação Getúlio Vargas’s graduate program in Rio de Janeiro, and has written a number of articles on antitrust law published in Brazil and abroad.

Languages

Portuguese and English

Memberships

Co-Chair of the Cartels Working Group at the Antitrust Committee of the International Bar Association (IBA); Member of the Brazilian Institute of Competition, Consumer Affairs and International Trade Law Review (IBRAC)

Education

Bachelor of Laws – Universidade do Estado do Rio de Janeiro

Postgraduate Degree in Private Law – Universidade do Estado do Rio de Janeiro

Master of Laws (LL.M.) – Columbia Law School

Lawyer Rankings

Brazil > Competition and antitrust

(Leading individuals)

Marcio Soares – Mattos Filho

A ‘first choice in Brazil‘ for many multinational companies, Mattos Filho‘s antitrust practice is commended for its capabilities in ‘guiding clients through complex mergers‘. Besides its strength in merger control matters, including non-fast-track merger review cases and the negotiation of remedies, the firm is also well positioned to represent clients in antitrust litigation and challenges to CADE’s decisions. Advising on all areas of antitrust law, team members Lauro Celidonio Neto and Renata Fonseca Zuccolo Gianella are described as ‘hands-on partners, with a great deal of knowledge and excellent experience before antitrust bodies’. Marcio Soares regularly acts for domestic and foreign clients from various economic sectors in merger approvals before CADE. Showcasing experience in competition, corporate investigations and digital markets, Michelle Machado is active in antitrust investigations and compliance mandates. Eduardo Frade leverages his previous experience in public management agencies and CADE to advise on a wide range of competition and regulatory issues, including cartels, leniency and abuse of dominant position. Paula Camara Baptista De Oliveira is a name to watch for her expertise in representing domestic and international clients in connection with antitrust related matters. Former New York office head Amadeu Ribeiro, who was noted for his competition law experience, left the firm in September 2023.

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Top Tier Firm Rankings

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