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Michelle Marques Machado


With more than fifteen years of experience in antitrust matters, she regularly represents domestic and foreign clients in a wide range of antitrust matters, including merger cases, antitrust investigations (including negotiation of leniency agreements and settlements), internal investigations compliance programs, review of commercial practices, and structuring businesses in compliance with the competition law.  She holds a LL.B. (2004) degree and Master of Laws (2008) degree from Universidade de São Paulo, and a LL.M. from Harvard Law School (2013).

At Mattos Filho, Michelle currently coordinates along with partners from Antitrust/Competition and Compliance/Corporate Ethics practices our Corporate Investigations Group: a multidisciplinary group devoted to assist clients in managing risks in connection with their businesses.  She is also a member of the firm's Technology Group, advising tech clients on antitrust matters adopting a multidisciplinary approach.

In Brazil, Michelle is a member of the Digital Markets Committee at the Brazilian Institute of Studies on Competition, Consumer Relations, and International Trade (IBRAC), of the Competition Committee at International Chamber of Commerce – ICC Brazil. At the ABA, Michelle is a Country Representative for the International Committee of the Antitrust Law Section of the American Bar Association, a member of the Steering Committee of International Antitrust Committee of Section of International Law da American Bar Association.  Alongside partner Amadeu Ribeiro, she is a regular contributor to the ABA International Antitrust Committee Quarterly Newsletter on recent developments in the antitrust arena in South America. Finally, she has just joined the Steering Committee of GCR Antitrust Law Leaders Forum.


Bachelor of Laws, Universidade de São Paulo (USP)

Master of Philosophy and General Theory of Law, Universidade de São Paulo (USP)

Master of Laws (LL.M.), Harvard Law School


Chambers Brazil (formerly Chambers Latam) – Competition/Antitrust (2021)

 Global Competition Review – GCR Awards: Nomination for Lawyer of the Year – 40 under 40; Women in Antitrust (2021)

The Legal 500 – Next generation partner: Competition/Antitrust (2019; 2021)

Who's Who Legal – Competition: Future Leaders (2018 – 2020)

Currículo em PDF Resume in PDF

Practice areas