The Intergovernmental Science–Policy Platform for Biodiversity and Ecosystem Services (IPBES) has played an important role in assessing knowledge and raising awareness of biodiversity loss, and it is now also mandated to assess and support processes of transformative change. This perspective paper argues that the transformative change assessment entails key elements of transformative agency, which, along with the performative role of IPBES, makes it relevant to re-conceptualize the organization as a transformative agent. This new role will change IPBES and brings attention to risks related to undermining the credibility, relevance and legitimacy of IPBES, but it also brings opportunities for innovations that may strengthen the organization, including furthering public reasoning, acknowledging ambiguities and disagreements, ensuring scientific autonomy and balancing governmental power in the organization. As IPBES takes on the fundamental challenge of transformative change, critical scrutiny and democratic debate regarding its function as a political actor are more important than ever.