How do institutional entrepreneurs (IEs) change institutions? To answer that question, most literature has focused on the IE as an object responding to a wide variety of antecedent conditions. Recent work has suggested that IEs are also subjects with agency. What is missing from the literature, however, is a more complete understanding of the mechanisms IEs employ to initiate and implement institutional change. Actors’ social positions are a significant influence on the institutional entrepreneurship process (Battilana, Leca, and Boxenbaum, 2009) and represent a means of integrating the institutional entrepreneurship and entrepreneurship literatures. Entrepreneurship theory can contribute to understanding the institutional entrepreneurship process by incorporating mechanisms of entrepreneurial action (Venkataraman, Sarasvathy, Dew, and Forster, 2012) such as effectuation (Sarasvathy, 2001,2008) into the study of institutional entrepreneurship (Pacheco, York, Dean,, and Sarasvathy, 2010). In this study, we ask: how do IEs employ one mechanism of entrepreneurial action: effectuation?