X0306 4 2018-03-27 0 0001467623 DROPBOX, INC. DBX 0001734432 Schreier R. Bryan 333 BRANNAN STREET SAN FRANCISCO CA 94107 1 0 0 0 Series A Preferred Stock 2018-03-27 4 C 0 39073599 0.00 D Class B Common Stock 39073599 0 I By Sequoia Capital XII, LP Series A-1 Preferred Stock 2018-03-27 4 C 0 36787659 0.00 D Class B Common Stock 36787659 0 I By Sequoia Capital XII, LP Series B Preferred Stock 2018-03-27 4 C 0 317886 0.00 D Class B Common Stock 317886 0 I By Sequoia Capital XII, LP Class B Common Stock 2018-03-27 4 C 0 76179144 0.00 A Class A Common Stock 76179144 76179144 I By Sequoia Capital XII, LP Series A Preferred Stock 2018-03-27 4 C 0 4176079 0.00 D Class B Common Stock 4176079 0 I By Sequoia Capital XII Principals Fund, LLC Series A-1 Preferred Stock 2018-03-27 4 C 0 3931759 0.00 D Class B Common Stock 3931759 0 I By Sequoia Capital XII Principals Fund, LLC Series B Preferred Stock 2018-03-27 4 C 0 33974 0.00 D Class B Common Stock 33974 0 I By Sequoia Capital XII Principals Fund, LLC Class B Common Stock 2018-03-27 4 C 0 8141812 0.00 A Class A Common Stock 8141812 8141812 I By Sequoia Capital XII Principals Fund, LLC Series A Preferred Stock 2018-03-27 4 C 0 1462080 0.00 D Class B Common Stock 1462080 0 I By Sequoia Technology Partners XII, LP Series A-1 Preferred Stock 2018-03-27 4 C 0 1376520 0.00 D Class B Common Stock 1376520 0 I By Sequoia Technology Partners XII, LP Series B Preferred Stock 2018-03-27 4 C 0 11894 0.00 D Class B Common Stock 11894 0 I By Sequoia Technology Partners XII, LP Class B Common Stock 2018-03-27 4 C 0 2850494 0.00 A Class A Common Stock 2850494 2850494 I By Sequoia Technology Partners XII, LP Each share of preferred stock automatically converted into one share of Class B common stock on a one-for-one basis immediately prior to the closing of the Issuer's initial public offering, and has no expiration. 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. 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/ Bart E. Volkmer, Attorney-In-Fact 2018-03-29