This study examines the influence of transformational leadership on organizational performance, with organizational commitment serving as a mediating variable and altruism functioning as a moderating factor. The research was carried out at A-certified Child Welfare Institutions (LKSA) in Indonesia, involving a sample of 185 respondents. A descriptive research design was applied, and data were analyzed using Structural Equation Modeling (SEM) with the Partial Least Squares (PLS) 3.0 software. The results indicate that altruism, when interacting with organizational commitment, does not significantly enhance organizational performance, even though it contributes to promoting the welfare of others without direct personal gain. Ideally, altruistic individuals act out of genuine concern and a willingness to assist others without expecting reciprocity. Additional findings reveal that transformational leadership produces stronger performance outcomes when accompanied by high levels of altruism. Overall, altruistic behavior, when aligned with leadership norms, has the potential to significantly strengthen organizational performance.
