Corporate social responsibility (CSR) focuses on many types of stakeholders and outcomes, including stakeholders outside of the organization and outcomes that go beyond financial results. Thus, CSR expands the notion of work to go beyond a task, job, intraindividual, intraorganizational, and profit perspective and provides an ideal conduit for individuals to seek and find meaningfulness through work. We adopt a person-centric conceptualization of CSR by focusing on sensemaking as an underlying and unifying mechanism through which individuals are proactive and intentional agents who search for and find meaningfulness through work. Our conceptualization allows us to understand variability in CSR effects due to variability in employee sensemaking and the meaningfulness employees experience from CSR; highlight synergies across disconnected theories and streams of research originating in different disciplines and at the intraindividual, intraorganizational, and extraorganizational levels of analysis; and propose new research directions for the future in the form of propositions and research questions. By using sensemaking as a unifying underlying process, the proposed conceptualization explains how individuals find meaningfulness through work and, consequently, when and why employees experience CSR in a particular manner—resulting in more or less positive outcomes for themselves, their organizations, and external stakeholders. Our proposed model could also be used in other individual-level research domains that would benefit from (a) placing people and their search for meaningfulness center stage and (b) focusing on the role that same-level and cross-level interactions among intraindividual, intraorganizational, and extraorganizational sensemaking factors play in the process.