Sec Form 4 Filing - Green Jeffrey Terry @ Trade Desk, Inc. - 2021-12-10

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person Green Jeffrey Terry 2. Issuer Name and Ticker or Trading Symbol Trade Desk, Inc. [ TTD] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner X __ Officer (give title below) _____ Other (specify below) President and CEO (Last) (First) (Middle) C/O THE TRADE DESK, INC., 42 NORTH CHESTNUT STREET 3. Date of Earliest Transaction (MM/DD/YY) 12/10/2021 (Street) VENTURA, CA93001 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock 12/10/2021 C 403,000 A $ 0 447,030 I See Footnote( 1 ) Class A Common Stock 12/13/2021 G( 2 ) V 403,000 D $ 0 44,030 I See Footnote( 1 ) Class A Common Stock 12/13/2021 G( 2 ) V 403,000 A $ 0 514,320 I See Footnote( 3 ) Class A Common Stock 698,672 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Class B Common Stock ( 4 ) 12/10/2021 C 403,000 ( 4 ) ( 4 ) Class A Common Stock 403,000 $ 0 30,542,480( 5 ) I See Footnote( 1 ) Class B Common Stock ( 4 ) ( 4 ) ( 4 ) Class A Common Stock 12,666,670 12,666,670( 6 ) I See Footnote( 7 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Green Jeffrey Terry C/O THE TRADE DESK, INC. 42 NORTH CHESTNUT STREET VENTURA, CA93001 X X President and CEO Signatures /s/ Tahnil Davis, Attorney-in-Fact for Jeffrey Terry Green 12/14/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )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. ( 2 )Represents a transfer of shares from the Reporting Person to the Jeff T. Green Family Foundation. ( 3 )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. ( 4 )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. ( 5 )On June 16, 2021, the Issuer effected a 10-for-1 stock split of its common stock resulting in the reporting person's ownership of 27,850,932 additional shares of common stock. ( 6 )On June 16, 2021, the Issuer effected a 10-for-1 stock split of its common stock resulting in the reporting person's ownership of 11,400,003 additional shares of common stock. ( 7 )Represents securities held by the Green Irrevocable Trust of 2015 (the "Irrevocable Trust"). Mr. Green is a Trustee of the Irrevocable Trust and has investment and voting control over the shares held by the Irrevocable Trust, and may be deemed to indirectly beneficially own the shares held by the Irrevocable Trust.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.