Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
COMMON STOCK^F1,F2	Oct 9, 2018	C	281,020	—	A	281,020	I	Khosla Ventures IV (CF), L.P.
COMMON STOCK^F1,F3	Oct 9, 2018	C	4,395,627	—	A	4,395,627	I	Khosla Ventures IV, L.P
COMMON STOCK^F1,F2	Oct 9, 2018	C	84,306	—	A	84,306	I	Khosla Ventures IV (CF), L.P.
COMMON STOCK^F1,F3	Oct 9, 2018	C	1,318,688	—	A	1,318,688	I	Khosla Ventures IV, L.P
COMMON STOCK^F1,F2	Oct 9, 2018	C	61,111	—	A	61,111	I	Khosla Ventures IV (CF), L.P.
COMMON STOCK^F1,F3	Oct 9, 2018	C	955,882	—	A	955,882	I	Khosla Ventures IV, L.P
COMMON STOCK^F1,F2	Oct 9, 2018	C	2,695	—	A	2,695	I	Khosla Ventures IV (CF), L.P.
COMMON STOCK^F1,F3	Oct 9, 2018	C	42,169	—	A	42,169	I	Khosla Ventures IV, L.P

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	D/I
SERIES B PREFERRED STOCK^F1,F2	—	Oct 9, 2018	C	281,020	D	—	—	COMMON STOCK	281,020	I
SERIES B PREFERRED STOCK^F1,F3	—	Oct 9, 2018	C	4,395,627	D	—	—	COMMON STOCK	4,395,627	I
SERIES C PREFERRED STOCK^F1,F2	—	Oct 9, 2018	C	84,306	D	—	—	COMMON STOCK	84,306	I
SERIES C PREFERRED STOCK^F1,F3	—	Oct 9, 2018	C	1,316,688	D	—	—	COMMON STOCK	1,316,688	I
SERIES D PREFERRED STOCK^F1,F2	—	Oct 9, 2018	C	61,111	D	—	—	COMMON STOCK	61,111	I
SERIES D PREFERRED STOCK^F1,F3	—	Oct 9, 2018	C	955,882	D	—	—	COMMON STOCK	955,882	I
SERIES E PREFERRED STOCK^F1,F2	—	Oct 9, 2018	C	2,695	D	—	—	COMMON STOCK	2,695	I
SERIES E PREFERRED STOCK^F1,F3	—	Oct 9, 2018	C	42,169	D	—	—	COMMON STOCK	42,169	I

Explanation of responses

F1The shares of Preferred Stock automatically converted into shares of the Issuer's Common Stock, for no additional consideration, at the then-effective conversion rate for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Amended and Restated Certificate of Incorporation) immediately prior to the consummation of the Issuer's initial public offering, and have no expiration date.
F2Consists of securities held of record by Khosla Ventures IV (CF), L.P. ("KV IV (CF)"), 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 sole 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 interests therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.
F3Consists of securities held of record by Khosla Ventures IV, L.P. ("KV IV"), of which KVA IV is the general partner. Vinod Khosla is the managing member of VK Services, which is the sole 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 respective pecuniary interests therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.