Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1,F2	Nov 17, 2017	C	1,027,690	—	A	1,027,690	I	By: Highway 12 Venture Fund II, L.P.
Common Stock^F1,F3	Nov 17, 2017	C	904,127	—	A	904,127	I	By: Highway 12 Venture Fund II-B, L.P.
Common Stock^F1,F2	Nov 17, 2017	C	797,235	—	A	1,824,925	I	By: Highway 12 Venture Fund II, L.P.
Common Stock^F1,F3	Nov 17, 2017	C	701,382	—	A	1,605,509	I	By: Highway 12 Venture Fund II-B, L.P
Common Stock^F1,F2	Nov 17, 2017	C	577,045	—	A	2,401,970	I	By: Highway 12 Venture Fund II, L.P.
Common Stock^F1,F3	Nov 17, 2017	C	507,665	—	A	2,113,174	I	By: Highway 12 Venture Fund II-B, L.P

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	D/I
Series A Preferred Stock^F1	—	Nov 17, 2017	C	1,027,690	D	—	—	Common Stock	1,027,690	I
Series A Preferred Stock^F1	—	Nov 17, 2017	C	904,127	D	—	—	Common Stock	904,127	I
Series A-1 Preferred Stock^F1	—	Nov 17, 2017	C	797,235	D	—	—	Common Stock	797,235	I
Series A-1 Preferred Stock^F1	—	Nov 17, 2017	C	701,382	D	—	—	Common Stock	701,382	I
Series B Preferred Stock^F1	—	Nov 17, 2017	C	577,045	D	—	—	Common Stock	577,045	I
Series B Preferred Stock^F1	—	Nov 17, 2017	C	507,665	D	—	—	Common Stock	507,665	I

Explanation of responses

F1Each share of Series A Preferred Stock, Series A-1 Preferred Stock and Series B Preferred Stock converted into shares of the Issuer's common stock upon the closing of the Issuer's initial public offering, on a one-for-one basis and had no expiration date.
F2The shares are held by Highway 12 Venture Fund II, L.P. ("Fund II"). The general partner of Fund II is Highway 12 Capital Partners II, LLC ("Partners II"). Highway 12 Ventures II, Inc. ("Ventures II") is the managerof Partners II. Mark Solon, a former member of the Issuer's board of directors, is the managing partner of Ventures II and a managing partner of Techstars Ventures.
F3The shares are held by Highway 12 Venture Fund II-B, L.P. ("Fund II-B") The general partner of Fund II-B is Partners II. Ventures II is the manager of Partners II. Mark Solon, a former member of the Issuer's board of directors, is the managing partner of Ventures II and a managing partner of Techstars Ventures.