Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1	Jul 22, 2015	C	37,574	$0.00	A	38,480	I	By Worldview Strategic Partners IV, L.P.
Common Stock^F1	Jul 22, 2015	C	2,523	$0.00	A	41,003	I	By Worldview Strategic Partners IV, L.P.
Common Stock^F1	Jul 22, 2015	C	1,313	$0.00	A	42,316	I	By Worldview Strategic Partners IV, L.P.
Common Stock^F2	Jul 22, 2015	C	827,294	$0.00	A	847,294	I	By Worldview Technology International IV, L.P.
Common Stock^F2	Jul 22, 2015	C	55,550	$0.00	A	902,844	I	By Worldview Technology International IV, L.P.
Common Stock^F2	Jul 22, 2015	C	28,935	$0.00	A	931,779	I	By Worldview Technology International IV, L.P.
Common Stock^F3	Jul 22, 2015	C	5,092,260	$0.00	A	5,215,376	I	By Worldview Technology Partners IV, L.P.
Common Stock^F3	Jul 22, 2015	C	341,927	$0.00	A	5,557,303	I	By Worldview Technology Partners IV, L.P.
Common Stock^F3	Jul 22, 2015	C	178,112	$0.00	A	5,735,415	I	By Worldview Technology Partners IV, L.P.

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	D/I
Series Alpha Convertible Preferred Stock^F1,F4	—	Jul 22, 2015	C	37,574	D	—	—	Common Stock	37,574	I
Series Alpha-1 Convertible Preferred Stock^F1,F5	—	Jul 22, 2015	C	2,523	D	—	—	Common Stock	2,523	I
Series Beta Convertible Preferred Stock^F1,F6	—	Jul 22, 2015	C	604	D	—	—	Common Stock	1,313	I
Series Alpha Convertible Preferred Stock^F2,F4	—	Jul 22, 2015	C	827,294	D	—	—	Common Stock	827,294	I
Series Alpha-1 Convertible Preferred Stock^F2,F5	—	Jul 22, 2015	C	55,550	D	—	—	Common Stock	55,550	I
Series Beta Convertible Preferred Stock^F2,F6	—	Jul 22, 2015	C	13,306	D	—	—	Common Stock	28,935	I
Series Alpha Convertible Preferred Stock^F3,F4	—	Jul 22, 2015	C	5,092,260	D	—	—	Common Stock	5,092,260	I
Series Alpha-1 Convertible Preferred Stock^F3,F5	—	Jul 22, 2015	C	341,927	D	—	—	Common Stock	341,927	I
Series Beta Convertible Preferred Stock^F3,F6	—	Jul 22, 2015	C	81,904	D	—	—	Common Stock	178,112	I

Explanation of responses

F1Shares held directly by Worldview Strategic Partners IV, L.P. ("Strategic IV"). Worldview Capital IV, L.P., the general partner of Strategic IV, and Worldview Equity I, L.L.C., the general partner of Worldview Capital IV, L.P., may each be deemed to have sole voting and dispositive power over the shares held by Strategic IV. James Wei, Michael Orsak and Susumu Tanaka are the managing members of Worldview Equity I, L.L.C. and may be deemed to share voting and dispositive power over the shares held by Strategic IV. Such persons and entities disclaim beneficial ownership of shares held by Strategic IV, except to the extent of any pecuniary interest therein.
F2Shares held directly by Worldview Technology International IV, L.P. ("International IV"). Worldview Capital IV, L.P., the general partner of International IV, and Worldview Equity I, L.L.C., the general partner of Worldview Capital IV, L.P., may each be deemed to have sole voting and dispositive power over the shares held by International IV. James Wei, Michael Orsak and Susumu Tanaka are the managing members of Worldview Equity I, L.L.C. and may be deemed to share voting and dispositive power over the shares held by International IV. Such persons and entities disclaim beneficial ownership of shares held by International IV, except to the extent of any pecuniary interest therein.
F3Shares held directly by Worldview Technology Partners IV, L.P. ("Technology IV"). Worldview Capital IV, L.P., the general partner of Technology IV, and Worldview Equity I, L.L.C., the general partner of Worldview Capital IV, L.P., may each be deemed to have sole voting and dispositive power over the shares held by Technology IV. James Wei, Michael Orsak and Susumu Tanaka are the managing members of Worldview Equity I, L.L.C. and may be deemed to share voting and dispositive power over the shares held by Technology IV. Such persons and entities disclaim beneficial ownership of shares held by Technology IV, except to the extent of any pecuniary interest therein.
F4The Series Alpha Convertible Preferred Stock converted into the issuer's common stock on a one-for-one basis upon the closing of the issuer's initial public offering. The Series Alpha Convertible Stock had no expiration date.
F5The Series Alpha-1 Convertible Preferred Stock converted into the issuer's common stock on a one-for-one basis upon the closing of the issuer's initial public offering. The Series Alpha-1 Convertible Preferred Stock had no expiration date.
F6Each share of Series Beta convertible preferred stock converted into that number of the issuer's common stock equal to the ratio of $21.2028 divided by $9.75 upon the closing of the issuer's initial public offering. The Series Beta Convertible Stock had no expiration date.