X0306 4 2019-02-26 0 0001467623 DROPBOX, INC. DBX 0001734432 Schreier R. Bryan 333 BRANNAN STREET SAN FRANCISCO CA 94107 1 0 1 0 Class A Common Stock 2019-02-26 4 C 0 3808957 0.00 A 3808957 I By Sequoia Capital XII, LP Class A Common Stock 2019-02-26 4 C 0 142525 0.00 A 142525 I By Sequoia Technology Partners XII, LP Class A Common Stock 2019-02-26 4 C 0 407091 0.00 A 407091 I By Sequoia Capital XII Principals Fund, LLC Class A Common Stock 2019-02-26 4 J 0 3808957 0.00 D 0 I By Sequoia Capital XII, LP Class A Common Stock 2019-02-26 4 J 0 142525 0.00 D 0 I By Sequoia Technology Partners XII, LP Class A Common Stock 2019-02-26 4 J 0 407091 0.00 D 0 I By Sequoia Capital XII Principals Fund, LLC Class A Common Stock 2019-02-26 4 J 0 44791 0.00 A 179164 I By family trust Class A Common Stock 2019-02-26 4 J 0 3524 0.00 D 14104 I By Sequoia Capital U.S. Venture 2010-Seed Fund, L.P. Class A Common Stock 14286 D Class B Common Stock 2019-02-26 4 C 0 3808957 0.00 D Class A Common Stock 3808957 60943316 I By Sequoia Capital XII, LP Class B Common Stock 2019-02-26 4 C 0 142525 0.00 D Class A Common Stock 142525 2280394 I By Sequoia Technology Partners XII, LP Class B Common Stock 2019-02-26 4 C 0 407091 0.00 D Class A Common Stock 407091 6513448 I By Sequoia Capital XII Principals Fund, LLC The Reporting Person is a non-managing member of SC XII Management, LLC ("SC XII Management"). SC XII Management is the general partner of Sequoia Capital XII, L.P. and Sequoia Technology Partners XII, L.P. and is the managing member of Sequoia Capital XII Principals Fund, LLC. The Reporting Person disclaims beneficial ownership of these securities 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 any other purpose. 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 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 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. The Issuer's Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis at the Reporting Person's election and has no expiration date. /s/ Jung Yeon Son, Attorney-In-Fact 2019-02-28