Mauro Grinberg worked and still works in fundamental questions of antitrust law in Brazil since its beginning, having watched and participated in all of its development. Due to his expertise and experience, he is highly praised by many clients. He covers the whole range of antitrust law – from merger notifications, defenses in Cade and judicial actions – focusing mainly on complex anticompetitive conducts. His acting on the process that became known as the “generics case”, ending with a favorable decision by STJ (the highest non-Constitutional Court in Brazil) was remarkable. Working in almost lost cases is not a new problem for Mauro. He has worked and still works in sectors like pharmaceuticals, auto parts, fuel distribution, ports, navigation, glassware, chemical products, computers and others. He is a frequent speaker and writer of articles both in Brazil and abroad.