Guided by social information processing theory, this study examines how perceived supervisor embeddedness relates to employees’ own affect toward, attachment to, and behavior within the firm. Data were collected from 338 employees at 3 points in time over a 10‐month period. The results supported the proposed model in 3 key ways. First, perceived supervisor embeddedness was directly related to employees’ own embeddedness over time. Second, organizational trust mediated the relationship between perceived supervisor embeddedness and employees’ own embeddedness over time. Third, organizational trust and employee embeddedness were both related to employees’ voice behavior over time.