Quarterly report pursuant to Section 13 or 15(d)

Capital Structure (Tables)

Capital Structure (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of outstanding common stock warrants

At March 31, 2018, the following common stock warrants were outstanding:



Number of shares	Exercise price		Expiration
underlying warrants	per share		date
80,966	$	28.00	August 2018
4,551,700	$	4.55	October 2018
40,000*	$	5.23	October 2018
3,571	$	28.00	December 2018
22,328*	$	8.40	October 2020
2,380*	$	8.68	May 2022
14,285,714	$	0.40	June 2022
18,986,659

*Accounted for as a liability instrument (see Note 5)

- Definition

Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

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