The student was arrested Monday for selling the marijuana-laced brownies to at least one student, authorities tell the Chicago Tribune.
The teen faces three charges in juvenile court, including one felony count of selling marijuana on school grounds. The other two are misdemeanor possession charges.
Parents received an e-mail from the school this week, warning that their kids may have purchased the brownies.
A similar incident was reported at Evanston Township High School earlier this month. A 17-year-old student was charged after five students got sick from eating brownies that contained a large amount of marijuana.
STNGWire contributed to this report