ABSTRACT This article aims to analyze the 15M movement and its outcomes through Gramscian lenses. The 15M expressed a crisis of ruling class hegemony based on a crisis of political representation. It was a moment of collective splintering and political subjectivation. Viewed from Gramsci’s distinction between small and big politics, the 15M marked the beginning of a phase in which big politics ceased to be the exclusive prerogative of the dominant classes and shifted towards subaltern groups. The sequence from 15M to Podemos can be analyzed as a cathartic moment in the Gramscian sense of the term and can also be read with the help of his concept of translation. Discussing Machiavelli’s work, Gramsci defined the party as a modern Prince. However, the conception of the party that prevailed in Podemos is narrower than that of Gramsci. His concept of transformism is useful to analyze Podemos’ strategic evolution.