X0609 4 2026-10-15 0 0001616707 Wayfair Inc. W 0001994593 Blotner Jon false C/O WAYFAIR INC., 4 COPLEY PLACE BOSTON MA 02116 0 1 0 0 Pres., Commercial & Operations 1 Class A Common Stock 2026-10-15 4 S 0 546 110 D 115885 D Class A Common Stock 100 I See Footnote The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 9, 2026. Represents shares directly owned by the reporting person's spouse, of which the reporting person is deemed a beneficial owner. /s/ Enrique Colbert, Attorney-In-Fact for Jon Blotner 2026-10-19