This study examines the evolving role of the Brazilian Supreme Court (STF) presidency, emphasizing its growing political and institutional influence. The research explores how STF presidents have expanded their role from a primarily ceremonial function to one of significant leadership. The main research question is: how does the STF presidency exercise institutional representation, and what factors shape its role? The study analyzes the official agendas of STF presidents from 2001 to 2021, identifying trends and variations in presidential actions. Findings suggest that both the personal profiles of justices and the broader political context directly impact the presidency’s degree of influence. The study proposes a typology of STF presidencies, categorizing them into ceremonial, negotiating, independent, and leading models. The conclusion highlights that the STF presidency has become a key political player, strategically mediating governance and intergovernmental relations. This institutional transformation reflects the increasing judicialization of politics and the demand for greater transparency and engagement from the judiciary.