Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F2	Aug 6, 2015	J	594,258	$0.00	D	1,376,471	I	by Intersouth Partners VI, L.P
Common Stock^F4	Aug 6, 2015	J	405,742	$0.00	D	939,816	I	by Intersouth Partners VII, L.P
Common Stock^F2	Aug 18, 2015	M	15,790	$6.00	A	1,392,261	I	by Intersouth Partners VI, L.P
Common Stock^F4	Aug 18, 2015	M	23,686	$6.00	A	963,502	I	by Intersouth Partners VII, L.P

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Warrant^F2,F5	$6.00	Aug 18, 2015	M	15,790	D	—	Aug 5, 2018	Common Stock	15,790	0	I
Warrant^F4,F5	$6.00	Aug 18, 2015	M	23,686	D	—	Aug 5, 2018	Common Stock	23,686	0	I

Explanation of responses

F1Distribution of shares by Intersouth Partners VI, L.P to its limited partners.
F2The reportable securities are owned directly by Intersouth Partners VI, L.P. ("ISP VI"). The shares directly held by ISP VI are indirectly held by Intersouth Associates VI, LLC ("ISA VI"), as general partner of ISP VI, and each of the individual managing members of ISA VI. The individual managing members (collectively, the "ISA VI Member Managers") of ISA VI are Mitch Mumma and Dennis Dougherty. ISA VI Member Managers may share voting and dispositive power over the shares directly held by ISP VI.
F3Distribution of shares by Intersouth Partners VII, L.P to its limited partners.
F4The reportable securities are owned directly by Intersouth Partners VII, L.P. ("ISP VII"). The shares directly held by ISP VII are indirectly held by Intersouth Associates VII, LLC ("ISA VII"), as general partner of ISP VII, and each of the individual managing members of ISA VII. The individual managing members (collectively, the "ISA VII Member Managers") of ISA VII are Mitch Mumma and Dennis Dougherty. ISA VII Member Managers may share voting and dispositive power over the shares directly held by ISP VII.
F5Immediately.