Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F2,F1	Aug 10, 2015	A	35,164	—	A	556,355	I	Foundation Capital VI, L.P.
Common Stock^F3,F1	Aug 10, 2015	C	15,485,113	—	A	16,041,468	I	Foundation Capital VI, L.P.
Common Stock^F2,F1	Aug 10, 2015	A	393	—	A	6,216	I	Foundation Capital VI Principals Fund, LLC
Common Stock^F3,F1	Aug 10, 2015	C	173,022	—	A	179,238	I	Foundation Capital VI Principals Fund, LLC
Common Stock^F1	holding	—	—		—	521,191	I	Foundation Capital VI, L.P.
Common Stock^F1	holding	—	—		—	5,823	I	Foundation Capital VI Principals Fund, LLC

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	D/I
Series A Preferred Stock (Convertible)^F1,F3	—	Aug 10, 2015	C	8,256,563	D	—	—	Common Stock	8,256,563	I
Series A Preferred Stock (Convertible)^F1,F3	—	Aug 10, 2015	C	92,255	D	—	—	Common Stock	92,255	I
Series B Preferred Stock (Convertible)^F1,F3	—	Aug 10, 2015	C	2,756,383	D	—	—	Common Stock	2,756,383	I
Series B Preferred Stock (Convertible)^F1,F3	—	Aug 10, 2015	C	30,798	D	—	—	Common Stock	30,798	I
Series C Preferred Stock (Convertible)^F1,F3	—	Aug 10, 2015	C	3,916,208	D	—	—	Common Stock	3,916,208	I
Series C Preferred Stock (Convertible)^F1,F3	—	Aug 10, 2015	C	43,757	D	—	—	Common Stock	43,757	I
Series D Preferred Stock (Convertible)^F1,F3	—	Aug 10, 2015	C	357,150	D	—	—	Common Stock	357,150	I
Series D Preferred Stock (Convertible)^F1,F3	—	Aug 10, 2015	C	3,991	D	—	—	Common Stock	3,991	I
Series E Preferred Stock (Convertible)^F1,F3	—	Aug 10, 2015	C	198,809	D	—	—	Common Stock	198,809	I
Series E Preferred Stock (Convertible)^F1,F3	—	Aug 10, 2015	C	2,221	D	—	—	Common Stock	2,221	I

Explanation of responses

F1Foundation Capital Management Co. VI, LLC is the sole manager of Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC and has sole voting and investment power with respect to the shares held by Foundation Capital VI, L.P. and Foundation Capital VI Principals Fund, LLC. William B.Elmore, Paul G. Koontz, Michael N. Schuh, Paul R. Holland, Richard A. Redelfs, Steve P. Vassallo, Charles P. Moldow and Warren M. Weiss are 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. 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 or her pecuniary interest therein.
F2The shares were acquired pursuant to a Stock Issuance Agreement, the form of which is filed as Exhibit 4.4 to Amendment No. 1 to the Issuer's Registration Statement on Form S-1, filed with the Securities Exchange Commission on July 22, 2015.
F3Each share of Issuer's Preferred Stock automatically converted into Common Stock on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering and has no expiration date.