Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Class A Common Stock^F1,F2,F3,F4	Oct 20, 2017	C	834,326	—	A	834,326	I	By Growth Fund
Class A Common Stock^F5,F2,F3,F4	Oct 20, 2017	J	834,326	—	D	0	I	By Growth Fund
Class A Common Stock^F6,F2,F3,F4	Oct 20, 2017	C	67,453	—	A	67,453	I	By Growth Partners
Class A Common Stock^F7,F2,F3,F4	Oct 20, 2017	J	67,453	—	D	0	I	By Growth Partners
Class A Common Stock^F8,F9	Oct 20, 2017	J	12,616	—	A	12,616	I	See footnote
Class A Common Stock^F10,F9	Oct 20, 2017	J	12,616	—	D	0	I	See footnote

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Class B Common Stock^F11,F2,F3,F4	—	Oct 20, 2017	C	834,326	D	—	—	Class A Common Stock	834,326	7,846,077	I
Class B Common Stock^{F11,F2,F3,F4,F12}	—	Oct 20, 2017	C	67,453	D	—	—	Class A Common Stock	67,453	7,778,624	I

Explanation of responses

F1Represents the conversion of Class B Common Stock into Class A Common Stock held by Draper Fisher Jurvetson Growth Fund 2006, L.P. (Growth Fund).
F10Represents a pro rata in-kind distribution of Class A Common Stock of the Issuer by Growth Fund 2006 Partners to its partners or members.
F11Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.
F121,170,740 of these shares are owned directly by DALP, 1,398,168 of these shares are owned directly by Fund IX, 4,471,285 of these shares are owned directly by Fund VIII, 37,886 of these shares are owned directly by Partners IX, 99,359 of these shares are owned directly by Partners VIII, 556,218 of these shares are owned directly by Growth Fund, and 44,968 of these shares are owned directly by Growth Partners.
F2The General Partner of Draper Associates, L.P. (DALP) is Draper Associates, Inc. which is controlled by its President and majority shareholder, Timothy C. Draper. DALP invests lockstep alongside Draper Fisher Jurvetson Fund VIII, L.P. (Fund VIII) and Draper Fisher Jurvetson Fund IX, L.P. (Fund IX).
F3Timothy C. Draper, John H.N. Fisher and Stephen T. Jurvetson are managing directors of the general partner entities of Fund VIII and Fund IX that directly hold shares and as such they may be deemed to have voting and investment power with respect to such shares. Draper Fisher Jurvetson Partners VIII, LLC (Partners VIII) invests lockstep alongside Fund VIII. Draper Fisher Jurvetson Partners IX, LLC (Partners IX) invests lockstep alongside Fund IX. The managing members of Partners VIII and Partners IX are Timothy C. Draper, John H.N. Fisher and Stephen T. Jurvetson. These individuals disclaim beneficial ownership of these shares except to the extent of their pecuniary interest therein.
F4John H.N. Fisher, Barry M. Schuler and Mark W. Bailey are managing directors of the general partner entities of Draper Fisher Jurvetson Growth Fund 2006, L.P. (Growth Fund) that directly hold shares and as such they may be deemed to have voting and investment power with respect to such shares. Draper Fisher Jurvetson Partners Growth Fund 2006, LLC (Growth Partners) invests lockstep alongside Growth Fund. The managing members of Growth Partners are John H.N. Fisher, Barry M. Schuler, Mark W. Bailey, Timothy C. Draper and Stephen T. Jurvetson. These individuals disclaim beneficial ownership of these shares except to the extent of their pecuniary interest therein.
F5Represents a pro rata in-kind distribution of Class A Common Stock of the Issuer by Growth Fund to its partners or members and includes the subsequent distribution by Draper Fisher Jurvetson Growth Fund 2006 Partners, L.P. (Growth Fund 2006 Partners) to its respective partners or members.
F6Represents the conversion of Class B Common Stock into Class A Common Stock held by Growth Partners.
F7Represents a pro rata in-kind distribution of Class A Common Stock of the Issuer by Growth Partners to its partners or members.
F8Represents the receipt of shares of Class A Common Stock of the Issuer by virtue of the pro rata in-kind distribution by Growth Fund.
F9Shares held by Growth Fund 2006 Partners.

Remarks

This report is filed as form 1 of 2 to report related transactions for the following filers: Draper Fisher Jurvetson Fund VIII, L.P.; Draper Fisher Jurvetson Partners VIII, LLC; Draper Fisher Jurvetson Fund IX, L.P.; Draper Fisher Jurvetson Partners IX, LLC; Draper Associates, L.P.; Timothy Draper; John Fisher; Stephen Jurvetson; Mark Bailey; Barry Schuler; Draper Fisher Jurvetson Growth Fund 2006, L.P.; and Draper Fisher Jurvetson Partners Growth Fund 2006, LLC.