X0306 4 2018-08-23 0 0001467623 DROPBOX, INC. DBX 0001374246 SC XII MANAGEMENT LLC C/O SEQUOIA CAPITAL 2800 SAND HILL ROAD, SUITE 101 MENLO PARK CA 94025 0 0 1 0 0001367770 SEQUOIA CAPITAL XII A DELAWARE L P C/O SEQUOIA CAPITAL 2800 SAND HILL ROAD, SUITE 101 MENLO PARK CA 94025 0 0 1 0 0001447932 SEQUOIA CAPITAL XII PRINCIPALS FUND LLC C/O SEQUOIA CAPITAL 2800 SAND HILL ROAD, SUITE 101 MENLO PARK CA 94025 0 0 1 0 0001380096 SEQUOIA TECHNOLOGY PARTNERS XII A DELAWARE L P C/O SEQUOIA CAPITAL 2800 SAND HILL ROAD, SUITE 101 MENLO PARK CA 94025 0 0 1 0 0001607841 SC US (TTGP), LTD. C/O SEQUOIA CAPITAL 2800 SAND HILL ROAD, SUITE 101 MENLO PARK CA 94025 0 0 1 0 0001611355 SC U.S. VENTURE 2010 MANAGEMENT, L.P. C/O SEQUOIA CAPITAL 2800 SAND HILL ROAD, SUITE 101 MENLO PARK CA 94025 0 0 1 0 0001563112 SEQUOIA CAPITAL U.S. VENTURE 2010-SEED FUND, L.P. C/O SEQUOIA CAPITAL 2800 SAND HILL ROAD, SUITE 101 MENLO PARK CA 94025 0 0 1 0 Class A Common Stock 2018-08-23 4 J 0 17628 0.00 A 17628 I By Sequoia Capital U.S. Venture 2010-Seed Fund, L.P. These shares were received by Sequoia Capital U.S. Venture 2010-Seed Fund L.P. as part of a pro rata distribution-in-kind to the limited partners of an investment fund. 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. Each of the Reporting Persons disclaims beneficial ownership of these securities except to the extent of its 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, by power of attorney for Douglas Leone, a Managing Member of SC XII Management, LLC 2018-08-27 /s/ Jung Yeon Son, by power of attorney for Douglas Leone, a Managing Member of SC XII Management, LLC, the General Partner of Sequoia Capital XII, L.P. 2018-08-27 /s/ Jung Yeon Son, by power of attorney for Douglas Leone, a Managing Member of SC XII Management, LLC, the Managing Member of Sequoia Capital XII Principals Fund LLC 2018-08-27 /s/ Jung Yeon Son, by power of attorney for Douglas Leone, a Managing Member of SC XII Management, LLC, the General Partner of Sequoia Technology Partners XII, L.P. 2018-08-27 /s/ Jung Yeon Son, by power of attorney for Bryan R. Schreier, a Director of SC US (TTGP), Ltd. 2018-08-27 /s/ Jung Yeon Son, by power of attorney for Bryan R. Schreier, a Director of SC US (TTGP), Ltd., the general partner of SC U.S. Venture 2010 Management, L.P. 2018-08-27 /s/ Jung Yeon Son, by power of attorney for Bryan R. Schreier, a Director of SC US (TTGP), Ltd., the general partner of SC U.S. Venture 2010 Management, L.P., the general partner of Sequoia Capital U.S. Venture 2010-Seed Fund, L.P. 2018-08-27