GLENVIEW, ILL. — Opus North Corp. has signed Mead Johnson Nutrition to a long-term lease at the developer’s Opus Gateway office building in Glenview. Located within The Glen mixed-use community, the four-story, Class A office facility was completed late last year. Mead Johnson will relocate its corporate headquarters to the 134,000-square-foot building, occupying the entire fourth floor when it moves in this month. Each floor offers 33,000 square feet of office space. The Glen is a 1,200-acre office, retail and residential redevelopment located at the intersection of Willow Road and Patriot Boulevard on Chicago’s North Shore.