X0306 4 2020-05-11 0 0001467623 DROPBOX, INC. DBX 0001734432 Schreier R. Bryan 333 BRANNAN STREET SAN FRANCISCO CA 94107 1 0 1 0 Class A Common Stock 2020-05-11 4 C 0 3808957 0.00 A 3808957 I By Sequoia Capital XII, LP Class A Common Stock 2020-05-13 4 C 0 3808957 0.00 A 3808957 I By Sequoia Capital XII, LP Class A Common Stock 2020-05-11 4 C 0 142525 0.00 A 142525 I By Sequoia Technology Partners XII, LP Class A Common Stock 2020-05-13 4 C 0 142525 0.00 A 142525 I By Sequoia Technology Partners XII, LP Class A Common Stock 2020-05-11 4 C 0 407090 0.00 A 407090 I By Sequoia Capital XII Principals Fund, LLC Class A Common Stock 2020-05-13 4 C 0 407090 0.00 A 407090 I By Sequoia Capital XII Principals Fund, LLC Class A Common Stock 2020-05-11 4 J 0 3808957 0.00 D 0 I By Sequoia Capital XII, LP Class A Common Stock 2020-05-13 4 J 0 3808957 0.00 D 0 I By Sequoia Capital XII, LP Class A Common Stock 2020-05-11 4 J 0 142525 0.00 D 0 I By Sequoia Technology Partners XII, LP Class A Common Stock 2020-05-13 4 J 0 142525 0.00 D 0 I By Sequoia Technology Partners XII, LP Class A Common Stock 2020-05-11 4 J 0 407090 0.00 D 0 I By Sequoia Capital XII Principals Fund, LLC Class A Common Stock 2020-05-13 4 J 0 407090 0.00 D 0 I By Sequoia Capital XII Principals Fund, LLC Class A Common Stock 2020-05-11 4 J 0 44793 0.00 A 582402 I By family trust Class A Common Stock 2020-05-13 4 J 0 44793 0.00 A 627195 I By family trust Class A Common Stock 27584 D Class B Common Stock 2020-05-11 4 C 0 3808957 0.00 D Class A Common Stock 3808957 26662701 I By Sequoia Capital XII, LP( Class B Common Stock 2020-05-13 4 C 0 3808957 0.00 D Class A Common Stock 3808957 22853744 I By Sequoia Capital XII, LP Class B Common Stock 2020-05-11 4 C 0 142525 0.00 D Class A Common Stock 142525 997671 I By Sequoia Technology Partners XII, LP Class B Common Stock 2020-05-13 4 C 0 142525 0.00 D Class A Common Stock 142525 855146 I By Sequoia Technology Partners XII, LP Class B Common Stock 2020-05-11 4 C 0 407090 0.00 D Class A Common Stock 407090 2849632 I By Sequoia Capital XII Principals Fund, LLC Class B Common Stock 2020-05-13 4 C 0 407090 0.00 D Class A Common Stock 407090 2442542 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 pursuant to a Rule 10b5-1 trading plan. Represents the receipt of shares of Common Stock of the Issuer by virtue of the pro rata in-kind distributions pursuant to a Rule 10b5-1 trading plan. Certain of these securities are restricted stock units. Each restricted stock unit represents the Reporting Person's right to receive one share of Class A Common Stock, subject to the applicable vesting schedule through May 23, 2020 or the day prior to the date of the Issuer's next annual meeting of stockholders. In the event the Reporting Person ceases to be a Service Provider, the unvested restricted stock units will be cancelled by the Issuer. 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 2020-05-13