Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1,F2	Oct 24, 2018	M	271,548	$0.38	A	1,087,780	I	See Footnotes
Common Stock^F1,F2	Oct 24, 2018	S	1,087,780	$18.00	D	0	I	See Footnotes
Common Stock^F2,F3	Oct 24, 2018	S	4,629	$18.00	D	7,817,065	I	See Footnotes

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Stock Option^F2,F5,F4	$0.38	Oct 24, 2018	M	271,548	D	—	Jun 15, 2022	Common Stock	271,548	0	I

Explanation of responses

F1Represents shares of common stock held by OPTIONS ICE, LP. Ryan R. Seiders is the manager of Options Ice GP, LLC, the general partner of OPTIONS ICE, LP.
F2The Reporting Persons are party to a Voting Agreement pursuant to which the Reporting Persons may be deemed to have beneficial ownership over shares of common stock held by other parties to the Voting Agreement. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of the Reporting Person's pecuniary interest therein. The filing of this statement shall not be deemed to be an admission that, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the Reporting Persons are the beneficial owners of any securities reported herein.
F3Represents shares of common stock held by RRS Ice 2, LP. Ryan R. Seiders is the manager of RRS ICE Management, LLC, the general partner of RRS Ice 2, LP.
F4The stock option became exercisable as to 135,774 shares on July 31, 2017 and as to the remaining 135,774 shares on July 31, 2018.
F5Represents a stock option held by OPTIONS ICE, LP. Ryan R. Seiders is the manager of Options Ice GP, LLC, the general partner of OPTIONS ICE, LP.