Studi sebelumnya mengungkapkan kesenjangan dalam literatur mengenai knowledge sharing dan person-organization fit sebagai variabel mediasi dalam menilai dampak transformational leadership terhadap innovative work behavior. Selain itu, beberapa penelitian menunjukkan bahwa transformational leadership dan person-organization fit memengaruhi innovative work behavior, sementara penelitian lain menemukan bahwa hal itu tidak. Studi ini menyelidiki pengaruh transformational leadership, person-organization fit, dan knowledge sharing pada innovative work behavior pegawai dan mengeksplorasi peran knowledge sharing dan person-organization fit sebagai variabel mediator. Studi ini menggunakan metode Partial Least Square (PLS)-Structural Equation Modelling (SEM) untuk menganalisis data 100 pegawai tetap perusahaan konstruksi mekanikal terkemuka di Jantung Ibu Kota Jakarta, Indonesia. Hasil penelitian menunjukkan bahwa transformational leadership terhadap innovative work behavior menjadi positif melalui knowledge sharing antar para pegawai. Person-organization fit dan knowledge sharing terbukti memengaruhi innovative work behavior secara positif, meskipun variabel mediasi tidak meningkatkan efek person-organization fit pada innovative work behavior. / Previous studies have revealed a gap in the literature regarding knowledge sharing and person-organization fit as mediating variables in assessing the impact of transformational leadership on innovative work behavior. Additionally, some studies have shown that transformational leadership and person- organization fit influence innovative work behavior, while others have found that they do not. This study investigates the influence of transformational leadership, person-organization fit, and knowledge sharing on employees' innovative work behavior and explores the roles of knowledge sharing and person-organization fit as mediating variables. The study uses the Partial Least Square (PLS)-Structural Equation Modelling (SEM) method to analyze data from 100 permanent employees of a leading mechanical construction company located in the heart of Jakarta, Indonesia. The results indicate that transformational leadership has a positive effect on innovative work behavior through knowledge sharing among employees. Person-organization fit and knowledge sharing are found to positively influence innovative work behavior, although the mediating variables did not increase the effect of person-organization fit on innovative work behavior.