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Marcio Soares

Areas of expertise
Experience
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
Bachelor of Laws – Universidade do Estado do Rio de Janeiro (Uerj);
Postgraduate Degree in Private Law – Universidade do Estado do Rio de Janeiro (Uerj);
Master of Laws (LL.M.) – Columbia Law School, USA.
Recognitions
Chambers Brazil – Competition & Antitrust (2013 – 2024);
LACCA Approved – Antitrust & Competition (2017, 2021 – 2025);
Latin Lawyer 250 – Antitrust & Competition (2014, 2020 – 2025);
The Legal 500 – Competition & Antitrust: Leading Partners (2014, 2021 –2025);
Análise Advocacia – Antitrust (2018 – 2024), Chemical & Petrochemical (2018 – 2021), São Paulo (2018 – 2021), Rio de Janeiro (2022 – 2024);
Lexology Index Brazil – Competition (2016, 2020 – 2024), Thought Leaders Brazil: Competition (2020 – 2023);
Lexology Index Global – Competition (2021, 2023), Global Elite: Competition (2022 – 2024).
Merger Control: CADE’s Tribunal rules on calculating a new cap for gun-jumping fines
CADE’s Tribunal permits company to offset fine paid to Comptroller-General’s Office for antitrust violations
Brazil’s Ministry of Finance presents proposals to regulate economic and competition aspects of digital platforms
Subjects:
Merger Control: a 2023 retrospective and the outlook for 2024
Subjects:
New members take office at Brazil’s antitrust authority
Subjects:
Probes of HR, tech firms were 2024 priorities for Brazil CADE
The Brazilian antitrust authority strengthened its competition defense efforts in 2024 by taking an “avant-garde” approach to its examinations of how large companies might have exchanged sensitive information during hiring processes. The Administrative Council for Economic Defense also closely examined alleged anticompetitive practices by technology companies.
Click here and read the article on MLex.
Areas of expertise
Mattos Filho poaches ex-CADE adviser from VMCA
Areas of expertise
CADE approves Japanese paper buy in Brazil
Mattos Filho, Veiga Filho, Marrey Jr e Quiroga Advogados has helped Japanese manufacturer Daio Paper and Japanese trading company Marubeni obtain antitrust clearance for their joint acquisition of Brazilian paper producer Santher.
Click here and learn more about this deal
Areas of expertise
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