All four received jail time, three years probation and were ordered to pay $4,400 in restitution.
Three have been banned from campus for a year. The students were involved in the March disturbance after the Spartans lost to Texas in the NCAA Tournament.
Freshmen Kimberly Martin and Tony Warren; sophomore Brian Balamucki and junior Timothy Ricker pleaded guilty Wednesday.
Martin and Balamucki will spend 10 days in jail while Warren received nine. Ricker was sentenced to four days in jail but not banned from campus.
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