10.34820/FK2/2YPKYG Alfaiza, Salsabila Aisyah(Telkom University) Telkom University Dataverse 2024 doi:10.34820/FK2/2YPKYG/GZHBXO Purpose The purpose of this paper is to investigate the moderating role of leadership between mass collaboration and quality of knowledge in the pharmaceutical sector of Iraq. Design/methodology/approach The approach that has been taken for conducting the following study is through a questionnaire survey where it has been mainly distributed among the employees of the pharmaceutical sector in Iraq that has been accessed through social media platforms. The total number of individuals that have participated in the study consists of 334. As per the analysis, the Smart PLS tool has been used for analyzing the data where structural equation modeling has been applied. Findings The results revealed that email, virtual meetings and professional virtual community have a significant and positive influence on the quality of knowledge, whereas discussion board is found to have an insignificant effect. Moreover, in terms … Alfaiza, Salsabila Aisyah(Telkom University-ICT Management)