Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1,F2,F5,F4	Jul 24, 2017	P	1,633	$1.4878	A	3,130	I	By: Richmond Brothers 401(k) Profit Sharing Plan
Common Stock^F1,F2,F5,F4	Sep 21, 2017	P	1,886	$1.44	A	6,859	I	By: Richmond Brothers 401(k) Profit Sharing Plan
Common Stock^F1,F2,F5,F4	Sep 21, 2017	P	2,464	$1.44	A	9,323	I	By: Richmond Brothers 401(k) Profit Sharing Plan
Common Stock^F1,F2,F5,F4	Nov 27, 2017	P	1,685	$1.3798	A	14,657	I	By: Richmond Brothers 401(k) Profit Sharing Plan
Common Stock^F1,F2,F5,F4	Nov 27, 2017	P	2,190	$1.3798	A	16,847	I	By: Richmond Brothers 401(k) Profit Sharing Plan
Common Stock^F1,F2,F5,F4	Jun 14, 2018	P	10,944	$1.6955	A	30,814	I	By: Richmond Brothers 401(k) Profit Sharing Plan
Common Stock^F1,F2,F5,F4	Jun 14, 2018	P	9,547	$1.6955	A	40,361	I	By: Richmond Brothers 401(k) Profit Sharing Plan
Common Stock^F1,F2,F5,F4	Jun 14, 2018	P	7,281	$1.6955	A	47,642	I	By: Richmond Brothers 401(k) Profit Sharing Plan
Common Stock^F1,F2,F5,F4	Jun 14, 2018	P	9,732	$1.6955	A	57,374	I	By: Richmond Brothers 401(k) Profit Sharing Plan
Common Stock^F1,F2,F3	holding	—	—		—	15,333	I	By: RBI Private Investment II, LLC

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses

F1This Form 4 is filed jointly by RBI Private Investment II, LLC ("RBI PII"), RBI PI Manager, LLC ("RBI Manager"), Richmond Brothers 401(k) Profit Sharing Plan ("RBI Plan"), Richmond Brothers, Inc. ("Richmond Brothers"), David S. Richmond and Matthew J. Curfman (collectively, the "Reporting Persons"). Each of the Reporting Persons may be deemed to be a member of a Section 13(d) group that may be deemed to collectively beneficially own more than 10% of the Issuer's outstanding shares of Common Stock. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein. The filing of this Form 4 shall not be deemed an admission that the Reporting Persons are, for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, the beneficial owners of any securities of the Issuer he or it does not directly own.
F2Not reported herein are securities of the Issuer held in certain accounts managed by Richmond Brothers (the "Separately Managed Accounts"). Richmond Brothers is entitled to a management fee from the Separately Managed Accounts based solely on the value of assets under management. Accordingly, neither Richmond Brothers nor any other Reporting Person has a pecuniary interest in any of the securities held in the Separately Managed Accounts for purposes of Section 16.
F3Represents securities directly owned by RBI PII. RBI Manager, as the manager of RBI PII, may be deemed to beneficially own the securities owned directly by RBI PII. Mr. Richmond, as the manager of RBI Manager, may be deemed to beneficially own the securities owned directly by RBI PII.
F4Represents securities directly owned by RBI Plan. Messrs. Richmond and Curfman, as trustees of RBI Plan, may be deemed to beneficially own the securities owned directly by RBI Plan.
F5Not reported herein are transactions by RBI Plan in which no Reporting Person (including Messrs. Richmond and Curfman) has a pecuniary interest.