Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1,F2,F3,F4	Oct 5, 2016	C	12,476,420	—	A	12,476,420	I	See footnote
Common Stock^F1,F2,F3,F5	Oct 5, 2016	C	797,640	—	A	797,640	I	See footnote
Common Stock^F6,F4	Oct 5, 2016	J	12,476,420	—	D	0	I	See footnote
Common Stock^F6,F5	Oct 5, 2016	J	797,640	—	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
Series B Convertible Preferred Stock^F4,F1	—	Oct 5, 2016	C	9,861,996	D	—	—	Common Stock	9,861,996	0	I
Series B Convertible Preferred Stock^F5,F1	—	Oct 5, 2016	C	630,495	D	—	—	Common Stock	630,495	0	I
Series C Convertible Preferred Stock^F4,F2	—	Oct 5, 2016	C	1,969,635	D	—	—	Common Stock	1,969,635	0	I
Series C Convertible Preferred Stock^F5,F2	—	Oct 5, 2016	C	125,922	D	—	—	Common Stock	125,922	0	I
Series D Convertible Preferred Stock^F4,F3	—	Oct 5, 2016	C	644,789	D	—	—	Common Stock	644,789	0	I
Series D Convertible Preferred Stock^F5,F3	—	Oct 5, 2016	C	41,223	D	—	—	Common Stock	41,223	0	I
Class B Common Stock^F4,F6,F7	—	Oct 5, 2016	J	12,476,420	A	—	—	Class A Common Stock	12,476,420	12,476,420	I
Class B Common Stock^F5,F6,F7	—	Oct 5, 2016	J	797,640	A	—	—	Class A Common Stock	797,640	797,640	I

Explanation of responses

F1The Series B convertible preferred stock automatically converted into common stock on a 1:1 basis immediately prior to the completion of the Issuer's initial public offering of Class A common stock (the "IPO") and had no expiration date.
F2The Series C convertible preferred stock automatically converted into common stock on a 1:1 basis immediately prior to the completion of the IPO and had no expiration date.
F3The Series D convertible preferred stock automatically converted into common stock on a 1:1 basis immediately prior to the completion of the IPO and had no expiration date.
F4Consists of securities held of record by Khosla Ventures IV, L.P. ("KV IV"), of which Khosla Ventures Associates IV, LLC ("KVA IV") is the general partner. Vinod Khosla is the managing member of VK Services, LLC ("VK Services"), which is the manager of KVA IV. Each of KVA IV, VK Services and Vinod Khosla may be deemed to possess voting and investment control over such securities held by KV IV, and each of KVA IV, VK Services and Vinod Khosla may be deemed to have indirect beneficial ownership of such securities held by KV IV. Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein.
F5Consists of securities held of record by Khosla Ventures IV (CF), L.P. ("KV IV (CF)"), of which KVA IV is the general partner. Vinod Khosla is the managing member of VK Services, which is the manager of KVA IV. Each of KVA IV, VK Services and Vinod Khosla may be deemed to possess voting and investment control over such securities held by KV IV (CF), and each of KVA IV, VK Services and Vinod Khosla may be deemed to have indirect beneficial ownership of such securities held by KV IV (CF). Each Reporting Person disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein.
F6Following the conversion of each series of the Issuer's convertible preferred stock into common stock and immediately prior to the completion of the IPO, each share of common stock was reclassified into one share of Class B common stock in an exempt transaction pursuant to Rule 16b-7.
F7Each share of Class B common stock is convertible at any time at the option of the holder into one share of Class A common stock. In addition, each share of Class B common stock will convert automatically into one share of Class A common stock upon (i) the date specified by affirmative vote or written consent of the holders of at least 67% of the outstanding shares of Class B common stock, (ii) any transfer, whether or not for value, subject to certain limited exceptions, (iii) the death of a natural person (including shares held by his or her permitted estate planning entities holding Class B common stock), or (iv) October 5, 2033.