Rutgers spokesman Greg Trevor says the nine students left the Old Queens administration building on the New Brunswick campus voluntarily Thursday evening. There were no arrests.
They'd been in the building since Wednesday.
The students wanted Rutgers President Richard McCormick to publicly support a tuition freeze.
Trevor said the university made no agreements regarding that issue or any of the students' five other demands, but continues to study the issues raised by the protesters.
About 38,000 students attend Rutgers' flagship campus in New Brunswick.