Considerable progress in commitment theory has been made possible by the adoption of a person-centered perspective. Such a perspective has made it possible for researchers to identify the most common combinations of Affective (AC), Normative (NC), and Continuance (CC) commitment to the organization. These combinations, or profiles, describe the various types of psychological processes depicting the ties linking employees with their organizations. However, limited research has consider commitment profiles as they relate to distinct targets of commitment, and even fewer studies have done so while adopting a longitudinal perspective. The goal of this study was to contribute to this growing literature by focusing on occupational commitment among a sample of 525 school principals (Mage = 44.94; 59% females), while also adopting a longitudinal perspective to assess profile stability over a three-year period. In addition, we investigated the implications of these profiles in relation to turnover intentions, job satisfaction, work-life imbalance and psychological distress, as well as the role of relationship with other managers, involvement in decision-making, and schoolboard transformational leadership in the prediction of profile membership. Our results revealed five distinct profiles of occupational commitment, which remained identical over the course of the study and proved to be highly stable (less than a fifth of the participants transitioned to a distinct profile over time). Beneficial effects were associated with profiles dominated by AC, detrimental effects were related to the CC-dominant profile, and we found beneficial synergistic effects of NC when combined with high CC in terms of job satisfaction, turnover intentions and work-life imbalance. In terms of predictions, only higher levels of relatedness with other school managers proved to predict profile membership. We discuss implications for commitment theory and practical applications of occupational commitment profiles.