TRANSFORMATIONAL LEADERSHIP AND DEPRESSIVE SYMPTOMS AMONG EMPLOYEES: MEDIATING FACTORS Kaisa Perko 1 , Ulla Kinnunen 1 & Taru Feldt 2 1 School of Social Sciences and Humanities, University of Tampere, Tampere, Finland 2 Department of Psychology, University of Jyväskylä, Jyväskylä, Finland Running head: Mediating factors Corresponding author: Kaisa Perko School of Social Sciences and Humanities Psychology 33014 University of Tampere, Tampere, Finland e-mail: kaisa.perko@uta.fi tel. +358-50-3186184 Acknowledgements: The research project “Rewarding and Sustainable Health-promoting Leadership (Re-Su-Lead)” was financially supported by The Finnish Work Environment Fund (grant No. 109398). Key words: transformational leadership, (mental) depression, mediation, self-efficacy, meaningful work, rumination