Blake Jeffrey Grayson - May 15, 2021 Form 4 Insider Report for Trade Desk, Inc. (TTD)

Role: Chief Financial Officer
Signature: /s/ Alfred Palomino, Attorney-in-Fact for Blake Jeffrey Grayson
Stock symbol: TTD
Transactions as of: May 15, 2021
Transactions value $: -$253,607
Form type: 4
Date filed: 5/18/2021, 09:19 PM
Next filing: May 21, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TTD	Class A Common Stock	Tax liability	-$68.8K	-133	-0.62%	$517.49^*	21.4K	May 15, 2021	Direct	F1, F2
transaction	TTD	Class A Common Stock	Options Exercise	$142K	+522	+2.44%	$272.35	21.9K	May 18, 2021	Direct
transaction	TTD	Class A Common Stock	Sale	-$265K	-522	-2.38%	$507.20^*	21.4K	May 18, 2021	Direct	F3
transaction	TTD	Class A Common Stock	Options Exercise	$37K	+136	+0.64%	$272.35	21.5K	May 18, 2021	Direct
transaction	TTD	Class A Common Stock	Sale	-$69K	-136	-0.63%	$507.20^*	21.4K	May 18, 2021	Direct	F3
transaction	TTD	Class A Common Stock	Options Exercise	$43.8K	+146	+0.68%	$300.01	21.5K	May 18, 2021	Direct
transaction	TTD	Class A Common Stock	Sale	-$74.1K	-146	-0.68%	$507.20^*	21.4K	May 18, 2021	Direct	F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	TTD	Employee Stock Option (Right to Buy)	Options Exercise	$0	-522	-2.65%	$0.00	19.2K	May 18, 2021	Class A Common Stock	522	$272.35	Direct	F4
transaction	TTD	Employee Stock Option (Right to Buy)	Options Exercise	$0	-136	-1.66%	$0.00	8.06K	May 18, 2021	Class A Common Stock	136	$272.35	Direct	F5
transaction	TTD	Employee Stock Option (Right to Buy)	Options Exercise	$0	-146	-1.67%	$0.00	8.6K	May 18, 2021	Class A Common Stock	146	$300.01	Direct	F6

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The shares were withheld at the election of the Reporting Person to satisfy tax withholding obligations in connection with the partial vesting of a restricted stock award granted May 15, 2020.
F2	Includes 84 shares acquired through the Employee Stock Purchase Plan on May 15, 2021.
F3	The Sales reported in this Form 4 were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person in accordance with Rule 10b5-1 of the Securities and Exchange Act of 1934, as amended.
F4	The option was granted on December 27, 2019. The Vesting Commencement Date ("VCD") was December 16, 2019. One-fourth (1/4th) of the shares subject to the option vest on the first anniversary of the VCD, with one forty-eighth (1/48th) of the shares subject to the original grant vesting on each monthly anniversary thereafter, subject to continued employment with the Issuer through the applicable vesting dates.
F5	The option was granted on December 27, 2019. The VCD was December 16, 2019. One forty-eighth (1/48th) of the shares subject to the option vest each monthly anniversary of the VCD, subject to continued employment with the Issuer through the applicable vesting dates.
F6	The option was granted on May 15, 2020, the VCD. One forty-eighth (1/48th) of the shares subject to the option vest each monthly anniversary of the VCD, subject to continued employment with the Issuer through the applicable vesting dates.