X0407 4 2023-05-30 0 0001671933 Trade Desk, Inc. TTD 0001671685 Pickles David Randall C/O THE TRADE DESK, INC. 42 NORTH CHESTNUT STREET VENTURA CA 93001 1 1 0 0 Chief Technology Officer 1 Class A Common Stock 2023-05-30 4 M 0 22345 59.57 A 549066 D Class A Common Stock 2023-05-30 4 S 0 22345 70.00 D 526721 D Class A Common Stock 2023-06-01 4 M 0 2060 26.334 A 528781 D Class A Common Stock 2023-06-01 4 S 0 200 70.21 D 528581 D Class A Common Stock 2023-06-01 4 S 0 300 71.66 D 528281 D Class A Common Stock 2023-06-01 4 S 0 1560 73.22 D 526721 D Employee Stock Option (Right to buy) 59.57 2023-05-30 4 M 0 22345 0.00 D 2032-04-26 Class A Common Stock 22345 60163 D Employee Stock Option (Right to buy) 26.334 2023-06-01 4 M 0 2060 0.00 D 2029-12-01 Class A Common Stock 2060 12350 D The sales reported in this Form 4 were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on February 21, 2023 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 $70.00 to $70.04, 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 $69.97 to $70.45, 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 $71.47 to $71.78, 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 $72.80 to $73.53, 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 option was granted on April 26, 2022, the Vesting Commencement Date ("VCD"). One forty-eighth (1/48th) of the shares subject to the option vest on each monthly anniversary of the VCD, subject to continued employment with the Issuer through the applicable vesting dates. The option was granted on December 1, 2019, the VCD. One forty-eighth (1/48th) of the shares subject to the option vest on each monthly anniversary of the VCD, subject to continued employment with the Issuer through the applicable vesting dates. /s/ Kelli Faerber, Attorney-in-Fact for David R. Pickles 2023-06-01