In a series of research briefs, the Houston Education Research Consortium (HERC) examines and describes the amount of student mobility in Texas, with particular focus on Houston area public schools. This fourth research brief provides an overview of patterns of student mobility differed by race, socioeconomic status, and English learner status. This study used seven years of data from the state of Texas (2010-11 through 2016-17) to illustrate how statewide patterns of school year student mobility differed by subgroup. There were differences in the rates of mobility during the school year by both race and socioeconomic status. Specifically, Black students and economically disadvantaged students had higher mobility rates than their peers from other subgroups. There were also subgroup differences in the destination of these moves. A higher percent of the moves made by Hispanic and Black students, economically disadvantaged students, and English learners (EL) students took place within district. A higher percent of moves made by White, Asian, and non-economically disadvantaged students took place out of the Texas Public School System (TPSS). [For "Changing Schools, Part 3: Student Mobility within and between Districts in Texas and the Houston Area," see ED611146.]