Workplace safety behavior along with remaining profitable are two essential considerations for business leaders in the competitive world. However, the literature is yet to understand whether leaders focusing solely on achieving financial bottom-line (i.e., those who adopt a bottom-line mentality; supervisor bottom-line mentality; BLM) are effective in enhancing employees’ workplace safety behaviors. Therefore, this research draws from social information processing theory to examine the link between supervisor BLM and workplace safety behaviors. We theorize that supervisor BLM reduces employees’ perceptions of supervisor support for safety, which then eventuates in reduced employee workplace safety behaviors. We also explore how employee job insecurity exacerbates this mediating process. Using data from a multi-wave study involving employees working in the United States (N=222), we found empirical support for our hypothesized moderated mediation model. Implications of our findings and future research directions are discussed.