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Michelle Machado

Michelle Machado

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


At Mattos Filho, Michelle currently coordinates our Corporate Investigations Group along with partners from Antitrust and Compliance & Corporate Ethics practices, which takes a multidisciplinary approach to assisting clients in managing their business risks. She is also a member of the firm’s Technology Group, advising tech clients on antitrust matters.


Michelle is a member of the Digital Markets Committee at the Brazilian Institute of Studies on Competition, Consumer Relations, and International Trade (IBRAC), a country representative at the International Committee of the American Bar Association’s Antitrust Law Section, as well as a steering committee member of the of International Antitrust Committee of the American Bar Association’s International Law Section. She is a regular contributor to the ABA International Antitrust Committee Quarterly Newsletter on recent developments in the antitrust arena in South America. In March 2021, she also joined the Steering Committee of GCR Antitrust Law Leaders Global.


Bachelor of Laws – Universidade de São Paulo (USP);

Master of Legal Philosophy and Theory – Universidade de São Paulo (USP);

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


Chambers Brazil – Competition & Antitrust (2021 – 2024);

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

Análise Advocacia– Antitrust (2022);

Análise Advocacia Mulher– Antitrust (2022 – 2024) and São Paulo (2023);

Euromoney Expert Guides- Women in Business Law: Competition & Antitrust (2022);

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

Who’s Who Global – Competition (2023) Future Leader: Competition (2018 – 2022) Latin America: Most highly regarded (2022) and Global Elite: Competition under 45 (2023).

Único. The Mattos Filho news portal

Authored publications

Mattos Filho in the media

With Michelle Machado
Latin Lawyer

Brazil approves Elanco-Bayer US$7.6 billion animal health deal

​Paul, Weiss, Rifkind, Wharton & Garrison LLP in New York and Washington, DC, and Mattos Filho, Veiga Filho, Marrey Jr e Quiroga Advogados in São Paulo have helped US company Elanco Animal Health obtain Brazilian antitrust clearance for its US$7.6 billion global acquisition of German pharma company Bayer’s animal health business.

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