Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1,F2	Jun 29, 2016	J	6,520	—	A	6,520	I	By Sequoia Venture
Common Stock^F3	holding	—	—		—	12,852,325	I	By Sequoia III
Common Stock^F4	holding	—	—		—	110,534	I	By Sequoia Partners
Common Stock^F5	holding	—	—		—	597,327	I	By Sequoia Principals

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses

F1Represents a pro rata in-kind distribution of Common Stock of the Issuer to Sequoia Capital U.S. Venture 2010 - Seed Fund, L.P. ("Sequoia Venture").
F2Shares are held directly by Sequoia Venture. SC U.S. Venture 2010 Management, L.P., the general partner of Sequoia Venture, may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Venture. SC US (TTGP), LTD., the general partner of SC U.S. Venture 2010 Management, L.P., may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Venture. Each of these entities disclaims beneficial ownership of the securities held by Sequoia Venture, except to the extent of any pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership for purposes of Section 16 or for any other purposes.
F3Shares are held directly by Sequoia Capital Growth Fund III, L.P., ("Sequoia III"). SCGF III Management, LLC, the general partner of Sequoia III, may be deemed to share voting and dispositive power with respect to the shares held by Sequoia III. Each of these entities disclaims beneficial ownership of the securities held by Sequoia III, except to the extent of any pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership for purposes of Section 16 or for any other purposes.
F4Shares are held directly by Sequoia Capital Growth Partners III, L.P., ("Sequoia Partners"). SCGF III Management, LLC, the general partner of Sequoia Partners, may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Partners. Each of these entities disclaims beneficial ownership of the securities held by Sequoia Partners, except to the extent of any pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership for purposes of Section 16 or for any other purposes.
F5Shares are held directly by Sequoia Capital Growth III Principals Fund LLC, ("Sequoia Principals"). SCGF III Management, LLC, the managing member of Sequoia Principals, may be deemed to share voting and dispositive power with respect to the shares held by Sequoia Principals. Each of these entities disclaims beneficial ownership of the securities held by Sequoia Principals, except to the extent of any pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership for purposes of Section 16 or for any other purposes.