Security	Date	Code	Shares	Price	A/D	Owned after	D/I
Common Stock^F1,F2	Jan 6, 2017	P	280,059	$5.60	A	1,037,994	D
Common Stock^F3	Jan 6, 2017	P	6,104	$5.60	A	435,444	D
Common Stock^F4	holding	—	—		—	30,518	D
Common Stock^F5	holding	—	—		—	13,131	D
Common Stock^F6	holding	—	—		—	37,241	D
Common Stock^F7	holding	—	—		—	77,038	D
Common Stock^F8	holding	—	—		—	87,052	D

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Warrant (right to purchase)^F1,F2,F9	$0.001	Jan 6, 2017	P	2,341,786	A	Jan 6, 2017	—	Common Stock	2,341,786	2,341,786	D
Warrant (right to purchase)^F3,F9	$0.001	Jan 6, 2017	P	51,047	A	Jan 6, 2017	—	Common Stock	51,047	51,047	D

Explanation of responses

F1These securities are owned directly by Boxer Capital, LLC ("Boxer Capital"), which may be deemed to be a member of a "group" for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, consisting of (i) Braslyn Ltd. ("Braslyn"), (ii) Boxer Capital, (iii) Boxer Asset Management Inc. ("Boxer Management"), (v) MVA Investors, LLC ("MVA Investors"), (vi) Joe Lewis, (vii) Rodney W. Lappe, (viii) Ivan M. Lieberburg, (ix) Aaron I. Davis, (x) Neil Reisman, (xi) Shehan B. Dissanayake, and (xii) Christopher Fuglesang (collectively, the "Boxer Group), and indirectly by Boxer Management and Messrs.
F2(Continued from Footnote 1) Lewis, Fuglesang, Reisman, Lieberburg, Dissanayake and Davis, by virtue of their ownership in Boxer Capital. Each of Messrs. Fuglesang, Reisman, Lieberburg, Dissanayake and Davis is a member of Boxer Capital. Each member of the Boxer Group other than Boxer Capital disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein.
F3These securities are owned directly and solely by MVA Investors, which has sole voting and dispositive power with respect to these securities. Each of Messrs. Fuglesang, Reisman, Lieberburg, Dissanayake and Davis is a member of MVA Investors. Each member of the Boxer Group other than MVA Investors disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein.
F4These securities are owned directly by Christopher Fuglesang, who may be deemed to be a member of the Boxer Group, and includes 11,436 shares received in connection with the pro rata distribution by Boxer Capital to its members on March 16, 2016 (the "Boxer Capital Pro Rata Distribution").
F5These securities are owned directly by Neil Reisman, who may be deemed to be a member of the Boxer Group, and includes 4,921 shares received in connection with the Boxer Capital Pro Rata Distribution.
F6These securities are owned directly by Ivan M. Lieberburg, who may be deemed to be a member of the Boxer Group, and includes 34,981 shares received in connection with the Boxer Capital Pro Rata Distribution.
F7These securities are owned directly by Shehan B. Dissanayake, who may be deemed to be a member of the Boxer Group, and includes 28,869 shares received in connection with the Boxer Capital Pro Rata Distribution.
F8These securities are owned directly by Aaron I. Davis, who may be deemed to be a member of the Boxer Group, and includes 32,622 shares received in connection with the Boxer Capital Pro Rata Distribution.
F9The warrants do not have an expiration date and are not exercisable to the extent that, following exercise of such warrants, the warrant holder and its affiliates would beneficially own more than 19.99% of the issuer's common stock.