Trade Desk, Inc. (TTD) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-04 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Trade Desk, Inc. (TTD) CIK: 0001671933 --- Reporting Owner --- Name: Cunningham Andrea Lee CIK: 0001903152 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Class A Common Stock Date: 2026-05-04 | Code: A (Grant or award) Shares: +6,110 | Price: $0.00 Shares Owned After: 11,193 | Ownership: D (Direct) Footnotes: [F1] Grant of restricted stock award under the Issuer's 2025 Incentive Award Plan. The shares vest in four equal installments at the earlier of, for each such installment, (i) the date of the Issuer's applicable regularly scheduled quarterly Corporate Board meeting for the next four quarters from the date of grant or (ii) the date of each of the next four corresponding quarterly anniversaries of the date of grant, provided all then unvested shares shall vest in full on the date of the Issuer's next annual meeting of stockholders, all subject to the Reporting Person's continuous service as a member of the board of directors immediately prior to such date. [F2] This restricted stock award was issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy as an annual director equity grant. [Transaction #2] Security: Class A Common Stock Date: 2026-05-04 | Code: A (Grant or award) Shares: +1,053 | Price: $23.73 Total Value: $24,987.69 Shares Owned After: 12,246 | Ownership: D (Direct) Footnotes: [F1] Grant of restricted stock award under the Issuer's 2025 Incentive Award Plan. The shares vest in four equal installments at the earlier of, for each such installment, (i) the date of the Issuer's applicable regularly scheduled quarterly Corporate Board meeting for the next four quarters from the date of grant or (ii) the date of each of the next four corresponding quarterly anniversaries of the date of grant, provided all then unvested shares shall vest in full on the date of the Issuer's next annual meeting of stockholders, all subject to the Reporting Person's continuous service as a member of the board of directors immediately prior to such date. [F3] This restricted stock award was issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy in lieu of director retainer and meeting fees of $25,000. [F4] This price represents the average closing stock price for a share of the Issuer's Class A Common Stock for forty-five consecutive trading days ending on, and including, the grant date. This price was used to calculate the number of restricted stock awards granted. [Transaction #3] Security: Class A Common Stock Date: 2026-05-04 | Code: A (Grant or award) Shares: +210 | Price: $23.73 Total Value: $4,983.30 Shares Owned After: 12,456 | Ownership: D (Direct) Footnotes: [F5] Grant of restricted stock award under the Issuer's 2025 Incentive Award Plan. The shares vest in four equal installments at the earlier of, for each such installment, (i) the date of the Issuer's applicable regularly scheduled quarterly Corporate Board meeting for the next four quarters from the date of grant or (ii) the date of each of the next four corresponding quarterly anniversaries of the date of grant, provided all then unvested shares shall vest in full on the date of the Issuer's next annual meeting of stockholders, all subject to the Reporting Person's continuous service as a member of the compensation committee immediately prior to such date. [F4] This price represents the average closing stock price for a share of the Issuer's Class A Common Stock for forty-five consecutive trading days ending on, and including, the grant date. This price was used to calculate the number of restricted stock awards granted. [F6] This restricted stock award was issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy in lieu of director retainer and meeting fees of $5,000. [Transaction #4] Security: Class A Common Stock Date: 2026-05-04 | Code: A (Grant or award) Shares: +526 | Price: $23.73 Total Value: $12,481.98 Shares Owned After: 12,982 | Ownership: D (Direct) Footnotes: [F7] Grant of restricted stock award under the Issuer's 2025 Incentive Award Plan. The shares vest in four equal installments at the earlier of, for each such installment, (i) the date of the Issuer's applicable regularly scheduled quarterly Corporate Board meeting for the next four quarters from the date of grant or (ii) the date of each of the next four corresponding quarterly anniversaries of the date of grant, provided all then unvested shares shall vest in full on the date of the Issuer's next annual meeting of stockholders, all subject to the Reporting Person's continuous service as a member of the nominating and corporate governance committee immediately prior to such date. [F4] This price represents the average closing stock price for a share of the Issuer's Class A Common Stock for forty-five consecutive trading days ending on, and including, the grant date. This price was used to calculate the number of restricted stock awards granted. [F8] This restricted stock award was issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy in lieu of director retainer and meeting fees of $12,500. --- Derivative Transactions --- [Transaction #1] Security: Stock Option (Right to Buy) Date: 2026-05-04 | Code: A (Grant or award) Shares: +11,051 | Price: $0.00 Exercisable: N/A | Expires: 2036-05-04 Shares Owned After: 11,051 | Ownership: D (Direct) Footnotes: [F10] This option was issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy as an annual director equity grant. [F9] Grant of option to purchase Class A Common Stock under the Issuer's 2025 Incentive Award Plan. The shares subject to the option vest in four equal installments at the earlier of, for each such installment, (i) the date of the Issuer's applicable regularly scheduled quarterly Corporate Board meeting for the next four quarters from the date of grant or (ii) the date of each of the next four corresponding quarterly anniversaries of the date of grant, provided all then unvested shares shall vest in full on the date of the Issuer's next annual meeting of stockholders, all subject to the Reporting Person's continuous service as a member of the board of directors immediately prior to such date. [Transaction #2] Security: Stock Option (Right to Buy) Date: 2026-05-04 | Code: A (Grant or award) Shares: +1,905 | Price: $13.12 Exercisable: N/A | Expires: 2036-05-04 Shares Owned After: 1,905 | Ownership: D (Direct) Footnotes: [F11] This price represents the Black-Scholes value of an option using the average closing stock price for a share of the Issuer's Class A Common Stock for forty-five consecutive trading days ending on, and including, the grant date. This price was used to calculate the number of shares subject to the option granted. [F12] These stock options were issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy in lieu of director retainer and meeting fees of $25,000. [F9] Grant of option to purchase Class A Common Stock under the Issuer's 2025 Incentive Award Plan. The shares subject to the option vest in four equal installments at the earlier of, for each such installment, (i) the date of the Issuer's applicable regularly scheduled quarterly Corporate Board meeting for the next four quarters from the date of grant or (ii) the date of each of the next four corresponding quarterly anniversaries of the date of grant, provided all then unvested shares shall vest in full on the date of the Issuer's next annual meeting of stockholders, all subject to the Reporting Person's continuous service as a member of the board of directors immediately prior to such date. [Transaction #3] Security: Stock Option (Right to Buy) Date: 2026-05-04 | Code: A (Grant or award) Shares: +381 | Price: $13.12 Exercisable: N/A | Expires: 2036-05-04 Shares Owned After: 381 | Ownership: D (Direct) Footnotes: [F11] This price represents the Black-Scholes value of an option using the average closing stock price for a share of the Issuer's Class A Common Stock for forty-five consecutive trading days ending on, and including, the grant date. This price was used to calculate the number of shares subject to the option granted. [F14] These stock options were issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy in lieu of director retainer and meeting fees of $5,000. [F13] Grant of option to purchase Class A Common Stock under the Issuer's 2025 Incentive Award Plan. The shares subject to the option vest in four equal installments at the earlier of, for each such installment, (i) the date of the Issuer's applicable regularly scheduled quarterly Corporate Board meeting for the next four quarters from the date of grant or (ii) the date of each of the next four corresponding quarterly anniversaries of the date of grant, provided all then unvested shares shall vest in full on the date of the Issuer's next annual meeting of stockholders, all subject to the Reporting Person's continuous service as a member of the compensation committee of the board of directors immediately prior to such date. [Transaction #4] Security: Stock Option (Right to Buy) Date: 2026-05-04 | Code: A (Grant or award) Shares: +952 | Price: $13.12 Exercisable: N/A | Expires: 2036-05-04 Shares Owned After: 952 | Ownership: D (Direct) Footnotes: [F11] This price represents the Black-Scholes value of an option using the average closing stock price for a share of the Issuer's Class A Common Stock for forty-five consecutive trading days ending on, and including, the grant date. This price was used to calculate the number of shares subject to the option granted. [F16] These stock options were issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy in lieu of director retainer and meeting fees of $12,500. [F15] Grant of option to purchase Class A Common Stock under the Issuer's 2025 Incentive Award Plan. The shares subject to the option vest in four equal installments at the earlier of, for each such installment, (i) the date of the Issuer's applicable regularly scheduled quarterly Corporate Board meeting for the next four quarters from the date of grant or (ii) the date of each of the next four corresponding quarterly anniversaries of the date of grant, provided all then unvested shares shall vest in full on the date of the Issuer's next annual meeting of stockholders, all subject to the Reporting Person's continuous service as a member of the nominating and corporate governance committee of the board of directors immediately prior to such date. --- Footnotes (Complete Index) --- F1: Grant of restricted stock award under the Issuer's 2025 Incentive Award Plan. The shares vest in four equal installments at the earlier of, for each such installment, (i) the date of the Issuer's applicable regularly scheduled quarterly Corporate Board meeting for the next four quarters from the date of grant or (ii) the date of each of the next four corresponding quarterly anniversaries of the date of grant, provided all then unvested shares shall vest in full on the date of the Issuer's next annual meeting of stockholders, all subject to the Reporting Person's continuous service as a member of the board of directors immediately prior to such date. F10: This option was issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy as an annual director equity grant. F11: This price represents the Black-Scholes value of an option using the average closing stock price for a share of the Issuer's Class A Common Stock for forty-five consecutive trading days ending on, and including, the grant date. This price was used to calculate the number of shares subject to the option granted. F12: These stock options were issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy in lieu of director retainer and meeting fees of $25,000. F13: Grant of option to purchase Class A Common Stock under the Issuer's 2025 Incentive Award Plan. The shares subject to the option vest in four equal installments at the earlier of, for each such installment, (i) the date of the Issuer's applicable regularly scheduled quarterly Corporate Board meeting for the next four quarters from the date of grant or (ii) the date of each of the next four corresponding quarterly anniversaries of the date of grant, provided all then unvested shares shall vest in full on the date of the Issuer's next annual meeting of stockholders, all subject to the Reporting Person's continuous service as a member of the compensation committee of the board of directors immediately prior to such date. F14: These stock options were issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy in lieu of director retainer and meeting fees of $5,000. F15: Grant of option to purchase Class A Common Stock under the Issuer's 2025 Incentive Award Plan. The shares subject to the option vest in four equal installments at the earlier of, for each such installment, (i) the date of the Issuer's applicable regularly scheduled quarterly Corporate Board meeting for the next four quarters from the date of grant or (ii) the date of each of the next four corresponding quarterly anniversaries of the date of grant, provided all then unvested shares shall vest in full on the date of the Issuer's next annual meeting of stockholders, all subject to the Reporting Person's continuous service as a member of the nominating and corporate governance committee of the board of directors immediately prior to such date. F16: These stock options were issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy in lieu of director retainer and meeting fees of $12,500. F2: This restricted stock award was issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy as an annual director equity grant. F3: This restricted stock award was issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy in lieu of director retainer and meeting fees of $25,000. F4: This price represents the average closing stock price for a share of the Issuer's Class A Common Stock for forty-five consecutive trading days ending on, and including, the grant date. This price was used to calculate the number of restricted stock awards granted. F5: Grant of restricted stock award under the Issuer's 2025 Incentive Award Plan. The shares vest in four equal installments at the earlier of, for each such installment, (i) the date of the Issuer's applicable regularly scheduled quarterly Corporate Board meeting for the next four quarters from the date of grant or (ii) the date of each of the next four corresponding quarterly anniversaries of the date of grant, provided all then unvested shares shall vest in full on the date of the Issuer's next annual meeting of stockholders, all subject to the Reporting Person's continuous service as a member of the compensation committee immediately prior to such date. F6: This restricted stock award was issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy in lieu of director retainer and meeting fees of $5,000. F7: Grant of restricted stock award under the Issuer's 2025 Incentive Award Plan. The shares vest in four equal installments at the earlier of, for each such installment, (i) the date of the Issuer's applicable regularly scheduled quarterly Corporate Board meeting for the next four quarters from the date of grant or (ii) the date of each of the next four corresponding quarterly anniversaries of the date of grant, provided all then unvested shares shall vest in full on the date of the Issuer's next annual meeting of stockholders, all subject to the Reporting Person's continuous service as a member of the nominating and corporate governance committee immediately prior to such date. F8: This restricted stock award was issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Policy in lieu of director retainer and meeting fees of $12,500. F9: Grant of option to purchase Class A Common Stock under the Issuer's 2025 Incentive Award Plan. The shares subject to the option vest in four equal installments at the earlier of, for each such installment, (i) the date of the Issuer's applicable regularly scheduled quarterly Corporate Board meeting for the next four quarters from the date of grant or (ii) the date of each of the next four corresponding quarterly anniversaries of the date of grant, provided all then unvested shares shall vest in full on the date of the Issuer's next annual meeting of stockholders, all subject to the Reporting Person's continuous service as a member of the board of directors immediately prior to such date. --- Signature --- /s/ /s/ Kelli Faerber, Attorney-in-Fact for Andrea Cunningham (2026-05-06)