The number of transfer students in U.S. postsecondary education has been growing. Of students who transferred from four-year institutions, 52 percent transferred to two-year institutions. Although transferring is an imperative for many students, little about the whereabouts of transfer students is known beyond descriptive statistics. Coupled with nationally represented data, this study investigated student transfer behavior at four-year institutions. The focal point of the current study was patterns of transfer, such as reverse and horizontal transfer. After controlling for student and institutional characteristics, it became evident that academic and social integration had significant effects on preventing students from transferring, particularly reverse transferring. Overall, this study suggests that transfer decisions are primarily the students' own decisions rather than the effects of institutional characteristics. Along with introducing the Reverse Transfer Efficiency Act of 2017, this study is an important contribution to current policy discussions about transfer.