X0306 4 2018-11-16 0 0001512673 Square, Inc. SQ 0001222287 BOTHA ROELOF C/O SEQUOIA CAPITAL, 2800 SAND HILL ROAD SUITE 101 MENLO PARK CA 94025 1 0 0 0 Class A Common Stock 49322 D Class A Common Stock 899976 I Sequoia Capital U.S. Venture 2010-Seed Fund, L.P. Class A Common Stock 2018-11-16 4 J 0 3465 0.00 A 858081 I Sequoia Capital U.S. Growth Fund IV, L.P. Class A Common Stock 2018-11-16 4 J 0 152 0.00 A 35657 I Sequoia Capital USGF Principals Fund IV, L.P. SC US (TTGP), Ltd. is the general partner of SC U.S. Venture 2010 Management, L.P., which is the general partner of Sequoia Capital U.S. Venture 2010-Seed Fund, L.P., or collectively, the Venture 2010 Funds. The Reporting Person is a Director of SC US (TTGP), Ltd. The Reporting Person disclaims beneficial ownership of the securities held by the Venture 2010 Funds except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. Represents shares of Class A Common Stock of the Issuer received on November 16, 2018 as transaction consideration pursuant to the Agreement and Plan of Reorganization, dated April 26, 2018, between the Issuer, Weebly, Inc. and the other parties thereto. SC US (TTGP), Ltd. is the general partner of SCGF IV Management, L.P., which is the general partner of Sequoia Capital U.S. Growth Fund IV, L.P. and Sequoia Capital USGF Principals Fund IV, L.P., or collectively, the SC GFIV Funds. The Reporting Person is a Director of SC US (TTGP), Ltd. The Reporting Person disclaims beneficial ownership of the securities held by the SC GFIV Funds except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes. /s/ Jung Yeon Son, Attorney-In-Fact 2018-11-20