X0306 4 2018-12-03 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 2018-12-03 4 C 0 2779822 0.00 A 2779822 I By Sequoia Capital U.S. Venture 2010 Fund, LP Class A Common Stock 2018-12-03 4 C 0 304186 0.00 A 304186 I By Sequoia Capital U.S. Venture 2010 Partners Fund (Q), LP Class A Common Stock 2018-12-03 4 C 0 61654 0.00 A 61654 I By Sequoia Capital U.S. Venture 2010 Partners Fund, LP Class A Common Stock 2018-12-03 4 J 0 2779822 0.00 D 0 I By Sequoia Capital U.S. Venture 2010 Fund, LP Class A Common Stock 2018-12-03 4 J 0 304186 0.00 D 0 I By Sequoia Capital U.S. Venture 2010 Partners Fund (Q), LP Class A Common Stock 2018-12-03 4 J 0 61654 0.00 D 0 I By Sequoia Capital U.S. Venture 2010 Partners Fund, LP Class A Common Stock 2018-12-03 4 J 0 179995 0.00 D 719981 I By Sequoia Capital U.S. Venture 2010-Seed Fund, L.P. Class A Common Stock 2018-12-03 4 J 0 127231 0.00 A 127231 I By estate planning vehicle Class A Common Stock 49322 D Class A Common Stock 858081 I By Sequoia Capital U.S. Growth Fund IV, L.P. Class A Common Stock 35657 I By Sequoia Capital USGF Principals Fund IV, L.P. Class B Common Stock 2018-12-03 4 C 0 2779822 0.00 D Class A Common Stock 2779822 11119288 I By Sequoia Capital U.S. Venture 2010 Fund, LP Class B Common Stock 2018-12-03 4 C 0 304186 0.00 D Class A Common Stock 304186 1216744 I By Sequoia Capital U.S. Venture 2010 Partners Fund (Q), LP Class B Common Stock 2018-12-03 4 C 0 61654 0.00 D Class A Common Stock 61654 246616 I By Sequoia Capital U.S. Venture 2010 Partners Fund, LP SC US (TTGP), Ltd. is the sole general partner of SC U.S. Venture 2010 Management, L.P., which is the sole general partner of each of Sequoia Capital U.S. Venture 2010 Fund, LP, Sequoia Capital U.S. Venture 2010 Partners Fund, LP, Sequoia Capital U.S. Venture 2010 Partners Fund (Q), LP and 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 a distribution of Class A Common Stock of the Issuer to partners or members and includes subsequent distributions by general partners or managing members to their respective partners or members. Represents the receipt of shares of Class A Common Stock of the Issuer by virtue of the pro rata in-kind distributions described in footnote (2) above. 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. Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date. /s/ Jung Yeon Son, Attorney-In-Fact 2018-12-06