X0306 4 2019-01-22 0 0001671933 Trade Desk, Inc. TTD 0001670811 Paley Eric B C/O THE TRADE DESK, INC. VENTURA CA 93001 1 0 0 0 Class A Common Stock 2019-01-22 4 J 0 52 49.44 D 31881 D Class A Common Stock 2019-03-01 4 S 0 200 195.005 D 31681 D Class A Common Stock 2019-03-01 4 S 0 100 197.24 D 31581 D Class A Common Stock 2019-03-01 4 S 0 200 199.485 D 31381 D Class A Common Stock 4392 I See Footnote Class A Common Stock 12822 I See Footnote Cancellation of shares related to restricted stock award originally issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy in lieu of cash compensation as a member of the Audit Committee and for which the Reporting Person no longer serves. The sales reported in this Form 4 were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $194.87 to $195.14, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $199.12 to $199.85, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. The reported securities are owned directly by Eric Paley 2015 Remainder Trust - GST Exempt Share (the "2015 Remainder Trust"). The Reporting Person is a beneficiary of the 2015 Remainder Trust. Represents a change in beneficial ownership in shares previously owned by each of the Eric Paley 2016 Annuity Trust and the Eric Paley 2017 Annuity Trust (collectively, the "Prior Trusts"). The shares held by the Prior Trusts were previously transferred to the Eric Paley 2018 Annuity Trust (the "2018 Annuity Trust"). The reported securities are owned directly by the 2018 Annuity Trust. The Reporting Person is a beneficiary of the 2018 Annuity Trust. /s/ Vivian Yang - Attorney-In-Fact for Eric B. Paley 2019-03-05