X0609 4 2026-10-19 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 Employee Stock Option (Right to Buy) 74.898 2026-10-19 4 D 0 215720 D 2031-04-29 Class A Common Stock 215720 0 D Employee Stock Option (Right to Buy) 12.26 2026-10-19 4 A 0 215720 A 2031-04-29 Class A Common Stock 215720 215720 D Employee Stock Option (Right to Buy) 61.46 2026-10-19 4 D 0 215696 D 2033-04-24 Class A Common Stock 215696 0 D Employee Stock Option (Right to Buy) 12.26 2026-10-19 4 A 0 215696 A 2033-04-24 Class A Common Stock 215696 215696 D Employee Stock Option (Right to Buy) 49.24 2026-10-19 4 D 0 450045 D 2035-04-15 Class A Common Stock 450045 0 D Employee Stock Option (Right to Buy) 12.26 2026-10-19 4 A 0 450045 A 2035-04-15 Class A Common Stock 450045 450045 D Employee Stock Option (Right to Buy) 25 2026-10-19 4 D 0 737028 D 2036-03-03 Class A Common Stock 737028 0 D Employee Stock Option (Right to Buy) 12.26 2026-10-19 4 A 0 737028 A 2036-03-03 Class A Common Stock 737028 737028 D This option was previously reported as covering 21,572 shares at an exercise price of $748.98 per share but was adjusted to reflect a 10-for-1 stock split effective June 16, 2021. The option is fully vested and exercisable. The transactions reported herein reflect a one-time stock option repricing (the "Option Repricing") under the Issuer's 2025 Incentive Award Plan effective on October 19, 2026 (the "Repricing Date"). Pursuant to the Option Repricing, the exercise price of the repriced options has been amended to reduce the exercise price to $12.26 per share, the closing price of the Issuer's Class A Common Stock on the Repricing Date. There is no change to the number of shares, the expiration dates or the vesting schedule of the repriced options. The Option Repricing was approved by the Issuer's stockholders on October 19, 2026. In order to exercise the repriced options at the new exercise price, the Reporting Person is required to remain in service with the Issuer through April 19, 2027, except for a termination by the Issuer without cause. The option was granted on April 24, 2023, the Vesting Commencement Date ("VCD"). One forty-eighth (1/48) of the shares subject to the option vest on each monthly anniversary thereafter, subject to continued employment with the Issuer through the applicable vesting dates. The option was granted on April 15, 2025, the VCD. One forty-eighth (1/48th) of the shares subject to the option vest on each monthly anniversary thereafter, subject to continued employment with the Issuer through the applicable vesting dates. The option was granted on March 3, 2026, the VCD. One forty-eighth (1/48th) of the shares subject to the option vest on each monthly anniversary thereafter, subject to continued employment with the Issuer through the applicable vesting dates. /s/ Kelli Faerber, Attorney-in-Fact for Jeffrey Terry Green 2026-10-21