X0306 4 2018-11-09 false 0001467623 DROPBOX, INC. DBX 0001734563 Houston Andrew 333 BRANNAN STREET SAN FRANCISCO CA 94107 true true true false Chief Executive Officer Class A Common Stock 2018-11-09 4 S false 47600.00 27.0046 D 716728.00 I See footnote Class A Common Stock 10333333.00 D The shares were sold pursuant to a Rule 10b5-1 trading plan entered into by the Houston Remainder Trust u/a/d 12/30/2010, for which reporting Person serves as trustee (the "Remainder Trust"). This transaction was executed in multiple trades at prices ranging from $27.00 to $27.05. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. The shares are held by the Remainder Trust. These securities are restricted stock awards of Class A Common Stock. The restricted stock awards vest over a period of up to ten years following the closing of the Issuer's initial public offering of Class A Common Stock, or March 27, 2028, upon achievement of service-based, market-based, and liquidity event-related performance vesting conditions. /s/ Mary Anne Becking, Attorney-In-Fact 2018-11-13