X0508 4 2023-09-14 0 0001671933 Trade Desk, Inc. TTD 0001671445 Green Jeffrey Terry C/O THE TRADE DESK, INC. 42 NORTH CHESTNUT STREET VENTURA CA 93001 1 1 1 0 President and CEO 1 Class A Common Stock 2023-09-14 4 S 0 73900 84.79 D 1768420 I See Footnote Class A Common Stock 2023-09-14 4 S 0 1100 85.63 D 1767320 I See Footnote Class A Common Stock 2023-09-15 4 S 0 4325 85.06 D 1762995 I See Footnote Class A Common Stock 278804 D Class A Common Stock 708216 I See Footnote The sales reported in this Form 4 were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on June 15, 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 $84.49 to $85.47, 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. Represents securities held by the Jeff Green Trust (the "Trust"). Mr. Green is a Trustee of the Trust and has investment and voting control over the shares held by the Trust, and may be deemed to indirectly beneficially own the shares held by the Trust. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $85.59 to $85.69, 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 $84.91 to $85.19, 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. Represents securities held by the Jeff T. Green Family Foundation (the "Foundation"). Mr. Green is the sole member and director of the Foundation and has investment and voting control over the shares held by the Foundation, and may be deemed to indirectly beneficially own the shares held by the Foundation. /s/ Kelli Faerber, Attorney-in-Fact for Jeffrey Terry Green 2023-09-18