Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1	Jul 15, 2016	X	9,541	$9.60	A	9,541	I	See Footnote
Common Stock^F2	Jul 15, 2016	X	396	$9.60	A	396	I	See Footnote
Common Stock^F1	Jul 15, 2016	X	3,180	$9.60	A	12,721	I	See Footnote
Common Stock^F2	Jul 15, 2016	X	132	$9.60	A	528	I	See Footnote
Common Stock^F3	holding	—	—		—	87,547	D

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	D/I
Warrant (right to buy)^F1	$9.60	Jul 15, 2016	X	9,541	D	Dec 30, 2009	Dec 30, 2019	Common Stock	9,541	I
Warrant (right to buy)^F2	$9.60	Jul 15, 2016	X	396	D	Dec 30, 2009	Dec 30, 2019	Common Stock	396	I
Warrant (right to buy)^F1	$9.60	Jul 15, 2016	X	3,180	D	Oct 5, 2010	Oct 5, 2020	Common Stock	3,180	I
Warrant (right to buy)^F2	$9.60	Jul 15, 2016	X	132	D	Oct 5, 2010	Oct 5, 2020	Common Stock	132	I

Explanation of responses

F1The shares are directly owned by Fund III. CPSM, CPS III, Fund III-A and the Managing Members may be deemed indirect beneficial owners of the securities held by Fund III as a result of their relationships described in the Remarks. CPSM, CPS III, Fund III-A and each of the Managing Members disclaim beneficial ownership of the securities held directly by Fund III, except to the extent of its or his pecuiniary interest therein.
F2The shares are directly owned by Fund III-A. CPSM, CPS III, Fund III and the Managing Members may be deemed indirect beneficial owners of the securities held by Fund III-A as a result of their relationships described in the Remarks. CPSM, CPS III, Fund III and each of the Managing Members disclaim beneficial ownership of the securities held directly by Fund III-A, except to the extent of its or his pecuniary interest therein.
F3Mr. Warnock is a director of the Issuer. Pursuant to an agreement with his employer, Camden Partner Holdings, LLC ("Holdings"), which provides management services to Fund III and Fund III-A, all securities and other benefits to which Mr. Warnock becomes entitled by virtue of his service as a director are received by Mr. Warnock for the benefit of Holdings.

Remarks

This Form 4 is being filed jointly by Camden Partners Strategic Manager, LLC ("CPSM"), Camden Partners Strategic III, LLC ("CPS III"), Camden Partners Strategic Fund III, L.P. ("Fund III"), Camden Partners Strategic Fund III-A, L.P. ("Fund III-A") and Messrs. David L. Warnock, Donald W. Hughes, J. Todd Sherman, Jason Tagler, and Shane Kim (collectively, the "Managing Members" and together with CPSM, CPS III, Fund III and Fund III-A, the "Reporting Persons"). The Managing Members are the managing members of CPSM, which is the Managing Member of CPS III. CPS III is the general partner of Fund III and Fund III-A. Mr. Warnock is a director of the Issuer.