This article proposes developing the public bioethics aspect of stewardship and applying it to the European Union (EU) as 'supra-stewardship', a tool for opening a discursive space for citizen participation in EU pandemic preparedness planning. With this in mind, the article highlights some of the contours for engagement on the boundaries of responsibility and production of governance distortions and failures brought out by attention to framing, distribution, vulnerability and learning. This should help citizens to tackle the complementary expert and public rationalities that undermine their involvement, contribute supplementary knowledge towards governance, and help promote institutional learning by the EU and resilience.