Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Series A Preferred Stock^F3,F1,F2	—	Jul 5, 2017	C	195,901	D	—	—	Class B Common Stock	9,795,071	0	I
Series A Preferred Stock^F4,F1,F2	—	Jul 5, 2017	C	3,422	D	—	—	Class B Common Stock	171,079	0	I
Series B Preferred Stock^F3,F5,F2	—	Jul 5, 2017	C	86,035	D	—	—	Class B Common Stock	4,301,765	0	I
Series B Preferred Stock^F4,F5,F2	—	Jul 5, 2017	C	1,503	D	—	—	Class B Common Stock	75,135	0	I
Series C Preferred Stock^F3,F6,F2	—	Jul 5, 2017	C	320,723	D	—	—	Class B Common Stock	1,603,615	0	I
Series C Preferred Stock^F4,F6,F2	—	Jul 5, 2017	C	5,602	D	—	—	Class B Common Stock	28,010	0	I
Series D Preferred Stock^F3,F7,F2	—	Jul 5, 2017	C	7,375	D	—	—	Class B Common Stock	7,375	0	I
Series D Preferred Stock^F4,F7,F2	—	Jul 5, 2017	C	129	D	—	—	Class B Common Stock	129	0	I
Class B Common Stock^F2,F3	—	Jul 5, 2017	C	15,707,826	A	—	—	Class A Common Stock	15,707,826	15,707,826	I
Class B Common Stock^F2,F4	—	Jul 5, 2017	C	274,353	A	—	—	Class A Common	274,353	274,353	I

Explanation of responses

F1The Series A Preferred Stock automatically converted into Class B Common Stock on a 50:1 basis upon the closing of the Issuer's initial public offering of its Class A Common Stock and had no expiration date.
F2The Class B Common Stock is convertible into the Issuer's Class A Common Stock on a one-for-one basis upon certain transfers of such shares and at the holder's election and has no expiration date.
F3The reported shares are directly owned by First Round Capital IV, LP. ("FRC IV LP"). First Round Capital Management IV, L.P., the general partner of FRC IV LP, and First Round Capital Management IV, LLC, the general partner of First Round Capital Management IV, L.P., have sole dispositive and voting power of the shares directly owned by FRC IV LP, and Phineas Barnes, Christopher Fralic, Robert Hayes, Joshua Kopelman and William Trenchard may be deemed to have shared dispositive and voting power over such shares. Such persons and entities disclaim beneficial ownership over the shares held FRC IV LP except to the extent of any pecuniary interest therein.
F4The reported shares are owned directly by First Round Capital IV Partners Fund, L.P. First Round Capital Management IV, L.P. the general partner of FRC IV LP, and First Round Capital Management IV, LLC, the general partner of First Round Capital Management IV, L.P., have sole dispositive and voting power of the shares directly owned by FRC IV LP, and Phineas Barnes, Christopher Fralic, Robert Hayes, Joshua Kopelman and William Trenchard may be deemed to have shared dispositive and voting power over such shares. Such persons and entities disclaim beneficial ownership over the shares held FRC IV LP except to the extent of any pecuniary interest therein.
F5The Series B Preferred Stock automatically converted into Class B Common Stock on a 50:1 basis upon the closing of the Issuer's initial public offering of its Class A Common Stock and had no expiration date.
F6The Series C Preferred Stock automatically converted into Class B Common Stock on a 5:1 basis upon the closing of the Issuer's initial public offering of its Class A Common Stock and had no expiration date.
F7The Series D Preferred Stock automatically converted into Class B Common Stock on a 1:1 basis upon the closing of the Issuer's initial public offering of its Class A Common Stock and had no expiration date.