0001490281 2020-06-16 2020-06-16 0001490281 false 8-K/A 2020-06-16 1-35335 Groupon, Inc. DE 27-0903295 600 W Chicago Avenue 60654 Suite 400 Chicago IL (312) 334-1579 false false false false Common stock, par value $0.0001 per share GRPN NASDAQ false