This article explores leader identity development in men and women, examining how individuals make sense of their leadership experiences. The research question guiding this work, "Do men and women describe their defining moments (catalyst events) of leadership differently?" An analysis of multiple survey responses (n = 537) revealed similarities in leader identity development, with both sexes identifying situations and events as catalysts for leadership emergence. However, men were more likely to express responsibility, and women were more likely to consider the broader context of a situation. The findings suggest leadership development programs can utilize these defining moments of leadership to support leader identity development.