X0407 4 2023-03-30 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 2023-03-30 4 C 0 473447 0.00 A 944377 D Class A Common Stock 2023-03-30 4 S 0 459382 60.24 D 484995 D Class A Common Stock 2023-03-30 4 S 0 14065 61.09 D 470930 D Class A Common Stock 2023-03-31 4 C 0 679549 0.00 A 1150479 D Class A Common Stock 2023-03-31 4 S 0 543547 60.64 D 606932 D Class A Common Stock 2023-03-31 4 S 0 136002 61.11 D 470930 D Class A Common Stock 2023-04-03 4 M 0 2050 26.334 A 472980 D Class A Common Stock 2023-04-03 4 S 0 2050 60.00 D 470930 D Class B Common Stock 0.00 2023-03-30 4 C 0 473447 0.00 D Class A Common Stock 473447 1679549 D Class B Common Stock 0.00 2023-03-31 4 C 0 679549 0.00 D Class A Common Stock 679549 1000000 D Employee Stock Option (Right to buy) 26.334 2023-04-03 4 M 0 2050 0.00 D 2029-12-01 Class A Common Stock 2050 16470 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 $60.00 to $60.95, 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 $61.05 to $61.33, 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 $60.00 to $60.995, 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 $61.00 to $61.34, 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. Each share of Class B Common Stock has no expiration date and is convertible for no additional consideration into one (1) share of Class A Common Stock at the option of the holder thereof at any time and upon certain other circumstances. The option was granted on December 1, 2019, 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. /s/ Kelli Faerber, Attorney-in-Fact for David R. Pickles 2023-04-03