X0306 4 2017-05-30 1 0001671933 Trade Desk, Inc. TTD 0001681822 Founder Collective GP, LLC 1 MIFFLIN PLACE SUITE 300 CAMBRIDGE MA 02138 0 0 1 0 0001465350 Founder Collective, L.P. 1 MIFFLIN PLACE SUITE 300 CAMBRIDGE MA 02138 0 0 1 0 0001684232 Founder Collective Entrepreneurs' Fund, LLC 1 MIFFLIN PLACE SUITE 300 CAMBRIDGE MA 02138 0 0 1 0 0001682665 Frankel David A. 1 MIFFLIN PLACE SUITE 300 CAMBRIDGE MA 02138 0 0 1 0 Class A Common Stock 2017-05-30 4 C 0 874960 A 874960 I By Founder Collective, L.P. Class A Common Stock 2017-05-30 4 S 0 874960 52.00 D 0 I By Founder Collective, L.P. Class A Common Stock 2017-05-30 4 C 0 255475 A 255475 I By Founder Collective Entrepreneurs' Fund, LLC Class A Common Stock 2017-05-30 4 S 0 255475 52.00 D 0 I By Founder Collective Entrepreneurs' Fund, LLC Class B Common Stock 2017-05-30 4 C 0 874960 0.00 D Class A Common Stock 874960 853661 I By Founder Collective, L.P. Class B Common Stock 2017-05-30 4 C 0 255475 0.00 D Class A Common Stock 255475 249257 I By Founder Collective Entrepreneurs' Fund, LLC 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. In addition, each share of Class B Common Stock will convert automatically into one (1) share of Class A Common Stock upon any transfer, whether or not for value, except for certain permitted transfers described in, and transfers to any "permitted transferee" as defined in, the Issuer's Amended and Restated Certificate of Incorporation in effect as of the date hereof. Founder Collective GP, LLC is the general partner (the "General Partner") of Founder Collective, L.P. ("Founder LP") and the managing member of Founder Collective Entrepreneurs' Fund, LLC ("Founder LLC," and together with the General Partner and Founder LP, the "Founder Collective Entities"). David A. Frankel and Eric Paley, a member of the Issuer's Board of Directors, are the managing members of the General Partner and may be deemed to have shared voting and investment power over the shares held by the Founder Collective Entities. Each of the General Partner and Messrs. Frankel and Paley in their respective capacities with regard to the General Partner, may be deemed to indirectly beneficially own the securities held by the Founder Collective Entities, but disclaims ownership of these securities and this report shall not be deemed an admission that any of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein. All shares of Class B Common Stock will convert automatically into shares of Class A Common Stock on a one-for-one basis upon the earlier of (i) the date on which the number of outstanding shares of Class B Common Stock represent less than ten percent (10%) of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock or (ii) a date specified by the holders of at least sixty-six and two-thirds percent (66 2/3%) of the outstanding shares of Class B Common Stock. FOUNDER COLLECTIVE GP, LLC, /s/ Eric Paley, Eric Paley, Managing Member 2017-05-31 FOUNDER COLLECTIVE, L.P., By: Founder Collective GP, LLC, its general partner, /s/ Eric Paley, Eric Paley, Managing Member 2017-05-31 FOUNDER COLLECTIVE ENTREPRENEURS' FUND, LLC, By: Founder Collective GP, LLC, its managing member, /s/ Eric Paley, Eric Paley, Managing Member 2017-05-31 DAVID FRANKEL, /s/ David Frankel 2017-05-31