225 W. Wacker Drive will be put up for sale as one of its largest tenants, Kaplan Higher Education, gets ready to move out. It’s the latest in a series of downtown office building sales this year.

225 W. Wacker Drive will be put up for sale as one of its largest tenants, Kaplan Higher Education, gets ready to move out. It’s the latest in a series of downtown office building sales this year.