Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F2	Apr 6, 2016	J	219,925	$0.00	D	10,526,938	I	By Foundation Capital IV, L.P.
Common Stock^F4	Apr 6, 2016	J	663,179	$0.00	D	663,178	I	By Foundation Capital VI, L.P.
Common Stock^F4	Apr 6, 2016	J	86,732	$0.00	A	86,732	I	By Foundation Capital Management Co. VI, L.L.C.
Common Stock^F4	Apr 6, 2016	J	86,732	$0.00	D	0	I	By Foundation Capital Management Co. VI, L.L.C.
Common Stock^F7	Apr 6, 2016	J	231	$0.00	A	231	I	By Foundation Capital, LLC
Common Stock^F2	holding	—	—		—	84,866	I	By: FC IV Active Advisors Fund, LLC
Common Stock^F2	holding	—	—		—	91,204	I	By: Foundation Capital IV Principals Fund, LLC
Common Stock^F4	holding	—	—		—	14,818	I	By: Foundation Capital VI Principals Fund, LLC

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 by Foundation Capital IV, L.P. effected following the close of the trading market on April 6, 2016 without consideration to its limited partners.
F2Foundation Capital Management Co. IV, LLC is the general partner of Foundation Capital IV, L.P., FC IV Active Advisors Fund, LLC and Foundation Capital IV Principals Fund, LLC. William B. Elmore, Paul G. Koontz, Michael N. Schuh, Paul R. Holland and Warren M. Weiss are managing members of Foundation Capital Management Co. IV, LLC, and may be deemed to share voting and investment power over the shares owned by Foundation Capital IV, L.P., FC IV Active Advisors Fund, LLC and Foundation Capital IV Principals Fund, LLC. Warren M. Weiss is a director of the Issuer and, accordingly, files separate Section 16 reports. Each of the managing members of Foundation Capital Management Co. IV, LLC disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.
F3Represents a pro-rata in-kind distribution of Common Stock of the Issuer by Foundation Capital VI, L.P. effected following the close of the trading market on April 6, 2016 without consideration to its limited partners and its general partner, Foundation Capital Management Co. VI, L.L.C.
F4Foundation Capital Management Co. VI, LLC is the general partner of Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. William B. Elmore, Paul G. Koontz, Michael N. Schuh, Paul R. Holland, Warren M. Weiss, Charles Moldow and Steve Vassallo are the managing members of Foundation Capital Management Co. VI, LLC and may be deemed to share voting and investment power over the shares owned by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. Warren M. Weiss is a director of the Issuer and, accordingly, files separate Section 16 reports. Each of the managing members of Foundation Capital Management Co. VI, LLC disclaims beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.
F5Represents a change in the form of ownership from indirect to direct by virtue of the receipt of shares in the pro-rata in-kind distribution of Common Stock of the Issuer by Foundation Capital VI, L.P. described in footnote 3 above.
F6Represents a pro-rata in-kind distribution of Common Stock of the Issuer by Foundation Capital Management Co. VI, LLC effected following the close of the trading market on April 6, 2016 without consideration to its members.
F7Paul R. Holland, Warren M. Weiss, Charles Moldow and Steve Vassallo are managers of Foundation Capital, LLC. Foundation Capital, LLC is under common control with Foundation Capital Management Co. IV, LLC and Foundation Capital Management Co. VI, LLC. As such, each of the managers may be deemed to share voting and investment power over the shares owned by Foundation Capital IV, L.P., FC IV Active Advisors Fund, LLC, Foundation Capital IV Principals Fund, LLC, Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. Each of the managers disclaim beneficial ownership in the shares held by the aforementioned entities except to the extent of his pecuniary interest therein.