We investigate determinants of global knowledge sourcing of overseas R&D subsidiaries, shedding light on vertical cross-border embeddedness within firms. Drawing on the paradox of embeddedness perspective, which assumes that embeddedness may facilitate or hinder knowledge transfer, we examine the extent to which different types of internal vertical embeddedness – administrative versus knowledge – facilitate global knowledge sourcing. We find that vertical administrative embeddedness inhibits global knowledge sourcing, while vertical knowledge embeddedness promotes it. We also find differing moderating effects of geographic distance between headquarters and its subsidiaries on the association between vertical embeddedness and global knowledge sourcing.