X0202 SCHEDULE 13G/A 0001620052 XXXXXXXX LIVE 12 Class A Common Stock 03/31/2026 0001616707 Wayfair Inc. 94419L101 4 Copley Place Boston MA 02116 Rule 13d-1(d) Steven Conine X1 9702207.00 22857.00 9702207.00 22857.00 9725064.00 N 8.2 IN Wayfair Inc. 4 Copley Place, Boston, Massachusetts, 02116 Steven Conine 4 Copley Place Boston, MA 02116 U.S. citizen Y This Amendment No. 12 to Schedule 13G is filed with respect to the Class A Common Stock, $0.001 par value per share, of the Issuer (the "Class A Common Shares"), but also relates to the Class B Common Stock, $0.001 par value per share (the "Class B Common Shares"), of the Issuer that may be converted on a one-for-one basis into Class A Common Shares as further described below. The amount beneficially owned by the Reporting Person includes: (i) 49,073 Class A Common Shares directly held by the Reporting Person, (ii) 9,133,304 Class B Common Shares directly held by the Reporting Person, (iii) 519,830 Class A Common Shares held by the Conine Family Foundation, of which the Reporting Person's spouse is President, and (iv) 22,857 Class A Common Shares held by SK Ventures LLC, of which the Reporting Person is a member. Each Class B Common Share is convertible at any time at the option of the Reporting Person into one Class A Common Share. In addition, each Class B Common Share will automatically convert into one Class A Common Share (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding Class B Common Shares represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Shares and Class B Common Shares, in the aggregate, or (c) in the event that holders of at least sixty six and two-thirds percent of the then outstanding Class B Common Shares elect to convert all such Class B Common Shares into Class A Common Shares. The ownership percentage below is based on an aggregate of 118,769,973 Class A Common Shares, consisting of (i) 109,636,669 Class A Common Shares outstanding as of March 31, 2026 and (ii) 9,133,304 Class A Common Shares issuable upon conversion of the 9,133,304 Class B Common Shares (on a one-for-one basis) directly held by the Reporting Person as of March 31, 2026. 8.2 The Reporting Person has the sole power to vote or to direct the vote with respect to (i) 568,903 Class A Common Shares, consisting of 49,073 Class A Common Shares directly held by the Reporting Person and 519,830 Class A Common Shares held by the Conine Family Foundation, of which the Reporting Person's spouse is President, and (ii) 9,133,304 Class B Common Shares directly held by the Reporting Person. The Reporting Person has shared power to vote or to direct the vote with respect to 22,857 Class A Common Shares. The Reporting Person has sole power to dispose or to direct the disposition of (i) 568,903 Class A Common Shares, consisting of 49,073 Class A Common Shares directly held by the Reporting Person and 519,830 Class A Common Shares held by the Conine Family Foundation, of which the Reporting Person's spouse is President, and (ii) 9,133,304 Class B Common Shares directly held by the Reporting Person. The Reporting Person has shared power to dispose or to direct the disposition of 22,857 Class A Common Shares. Y N Y Y Y Y N Steven Conine /s/ Steven Conine Steven Conine / Co-Founder 05/11/2026