Purpose While there is relatively plenty of evidence for the positive impact of communication on the perceptions of organizational change, how organizational changes affect information sharing is relatively unknown. The purpose of this paper is to investigate if a favorable perception of ongoing organizational changes has a positive impact on information sharing and whether trust mediates this relationship. Design/methodology/approach A questionnaire (n=317) was administered to the employees of a large Finnish multinational organization. Partial least square structural equation modeling was used to test the hypotheses based on earlier research findings. Findings The results show that a positive perception of recent organizational changes improves information sharing both directly and indirectly, mediated by trust. Consequently, when changes are perceived negatively, employees recoil from information sharing which is known to have negative implications for organizations. Research limitations/implications Data were collected in a single organization. The nature of the specific changes in the studied organization and its particularities undoubtedly had an effect on respondents perceptions. Originality/value This paper contributes to organizational information management research by elaborating on the relationship between organizational changes and interpersonal information sharing between employees. To the authors knowledge, this is the first quantitative study confirming the impact of the perception of organizational changes on employee information-sharing behavior.