SUMMARY
This study aims to determine the effect of managerial ownership and “Institutional Ownership“ on Firm Performance. This research uses eviews and excel for data processing. There are 7 companies that are sampled in this study. Based on the calculation results, the t-count is -1.305926 > t-table -2.042 with a significance number of 0.2009 > = 0.05, so Ho is accepted and Ha is rejected. This means that there is no influence of Managerial Ownership on Firm Performance. The magnitude of the influence of Managerial Ownership on Firm Performance = -0.881909 or 88.19% with a significance number of 0.2009> = 0.05. To reduce this deviant behavior, there is a need for supervision by outside parties. Share ownership by institutions can reduce deviant behavior by managers by conducting supervision. Based on the calculation results, the t-count is -2.889903 > t-table -2.042 with a significance number of 0.0069 < = 0.05, so Ho is rejected and Ha is accepted. This means that there is no an influence of “Institutional Ownership“ on Firm Performance. The results of this study are in line with agency theory.