X0609 4 2026-04-29 0 0001671933 Trade Desk, Inc. TTD 0001671445 Green Jeffrey Terry false C/O THE TRADE DESK, INC. 42 NORTH CHESTNUT STREET VENTURA CA 93001 1 1 1 0 President and CEO 0 Class A Common Stock 2026-05-15 4 G 0 52909 0 D 603008 D Class A Common Stock 2026-05-15 4 G 0 52909 0 A 84638 I See Footnote Class A Common Stock 920901 I See Footnote Class A Common Stock 6000000 I By Limited Partnership Employee Stock Option Exercise (Right to Buy) 82.388 2026-04-29 4 E 0 1330 0 D 2026-04-29 Class A Common Stock 1330 0 D Represents a transfer of shares from the Reporting Person to a trust held by the Reporting Person. 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. 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. This option was previously reported as covering 133 shares at an exercise price of $823.88 per share, but was adjusted to reflect a 10-for-1 stock split effective June 16, 2021. The option was granted on April 29, 2021, with a Vesting Commencement Date ("VCD") of December 29, 2024. One-fourth (1/4th) 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 Jeffrey Terry Green 2026-05-19