Mattos Filho’s competition and antitrust team is recognised for its ‘high level of competence’ and ’in-depth knowledge of competition law’. The group’s expertise covers merger control, antitrust litigation, conduct matters, regulatory compliance, and general counselling. This broad skill set has helped build a strong and diverse client base, featuring leading companies in the technology, life sciences, financial services and energy sectors, among others. Leading the practice is Marcio Soares, who regularly represents clients before CADE in merger filings, cartel investigations, and abuse of dominance cases. The team also benefits from the expertise of Renata Fonseca Zuccolo Giannella, who focuses on internal audits and compliance programme implementation. On the leniency agreement and settlement side, Michelle Machado is a key contact, while the ‘agile’ Eduardo Frade excels in merger control proceedings and behavioural matters. Other important team members include Paula Camara, João Marcelo Lima, and Venicio Filho. Lauro Celidonio Neto is no longer with the firm.
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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 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.
Languages
Portuguese and English
Memberships
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
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
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