X0609 4/A 2025-12-16 2026-03-06 0 0001616707 Wayfair Inc. W 0001368414 Kumin Michael Andrew false C/O WAYFAIR INC. 4 COPLEY PLACE BOSTON MA 02116 1 0 0 0 0 Class A Common Stock 2025-12-16 4 G 0 56000 0 D 0 I By TOF Capital Class A Common Stock 2025-12-16 4 G 0 56000 0 A 316577 D Class A Common Stock 2026-03-05 4 A 0 3176 0 A 319753 D The previous Form 4 filed in respect of the listed transaction is being amended to indicate that 56,000 shares were transferred from TOF Capital to the reporting person such that the shares are now held directly by the reporting person in his individual capacity. The reporting person is the managing member of TOF Capital, which directly owns the reported securities. Each share of Class A Common Stock is issuable upon the vesting of a restricted stock unit ("RSU"). The RSUs vest upon the satisfaction of a service condition. The service condition is satisfied as to 1/4th of the shares on May 1, 2026 and as to an additional 1/4th of the shares for each three-month period of continuous service thereafter. Includes 160 shares held in a separately managed account for the benefit of the reporting person. The amount of securities beneficially owned directly by the reporting person in his individual capacity has been amended to reflect the beneficial ownership following the transfer from TOF Capital. /s/ Enrique Colbert, as Attorney-in-Fact for Michael A. Kumin 2026-03-31