The purpose of this study was to examine the effect of company size, institutional ownership, independent commissioners and leverage on financial performance as proxied by ROA (Return On Asset) in Islamic commercial bank companies registered with the OJK for the period 2015-2019. The independent variables in this study are company size, institutional ownership, independent commissioners and leverage, while the dependent variable is financial performance (ROA). The population in this study were Islamic commercial bank companies in the 2015-2019 period. The data collection technique used was purposive sampling, in order to obtain a sample of 14 companies with 52 data that match the criteria. The results of this study indicate that the variables of company size, institutional ownership, independent commissioners do not have a positive effect on financial performance. However, another variable, namely leverage, has a negative effect on financial performance.