This study investigates the temporal change patterns of entrepreneurial orientation (EO) subsequent to chief executive officer (CEO) successions. Integrating prior research, we hypothesize that CEO successions lead to a change in EO and that this change exhibits an inverse U‐shape over time. Based on data collected for 67 CEO successions, our empirical results support our hypotheses, showing that successions effectuate changes in EO and tend to increase the level of EO in firms. Changes in EO peak in the second to fourth year of a new CEO's tenure, with less change before and after. We also demonstrate that changes in EO occur later but are more pronounced if the newly appointed firm leader is an outside CEO.