Wrigley Co. planning to leave Michigan Avenue headquarters Get link Facebook X Pinterest Email Other Apps ★ CARDINAL NEWS ★ July 22, 2011 suntimes.com Gleaming white building, 400 N. Michigan, needs work and is no longer suitable for the company; remain 250 Wrigley employees will head to Goose Lake campus by 2012, 40% of building already vacant ... Get link Facebook X Pinterest Email Other Apps