| Summary of outstanding warrants by expiration date |
| |
|
|
Exercise
|
|
Expiration
|
|
Quantity
|
|
|
Price
|
|
Date
|
| |
|
|
|
|
|
| |
5,000
|
|
|
$
|
15.00
|
|
April 1, 2013
|
| |
50,000
|
|
|
$
|
30.00
|
|
April 1, 2013
|
| |
2,200,000
|
|
|
$
|
3.00
|
|
April 27, 2013
|
| |
500,000
|
|
|
$
|
5.00
|
|
August 10, 2013
|
| |
500,000
|
|
|
$
|
7.50
|
|
August 10, 2013
|
| |
500,000
|
|
|
$
|
10.00
|
|
August 10, 2013
|
| |
4,652,165
|
|
|
$
|
3.00
|
|
August 25, 2013
|
| |
10,000
|
|
|
$
|
51.50
|
|
August 25, 2013
|
| |
1,277,170
|
|
|
$
|
1.66
|
*
|
July 13, 2014
|
| |
65,000
|
|
|
$
|
1.00
|
|
September 14, 2014
|
| |
250,000
|
|
|
$
|
1.50
|
|
November 15, 2014
|
| |
20,000
|
|
|
$
|
1.00
|
|
December 2, 2014
|
| |
56,000
|
|
|
$
|
1.00
|
|
December 11, 2014
|
| |
5,000
|
|
|
$
|
1.00
|
|
December 28, 2014
|
| |
3,834
|
|
|
$
|
30.00
|
|
May 5, 2015
|
| |
100,000
|
|
|
$
|
1.00
|
|
October 10, 2015
|
| |
50,000
|
|
|
$
|
1.00
|
|
October 12, 2015
|
| |
500,000
|
|
|
$
|
2.25
|
|
October 25, 2015
|
| |
25,000
|
|
|
$
|
2.25
|
|
November 14, 2015
|
| |
100,000
|
|
|
$
|
1.64
|
|
December 13, 2015
|
| |
50,000
|
|
|
$
|
20.00
|
|
January 11, 2016
|
| |
250,000
|
|
|
$
|
2.25
|
|
January 23, 2016
|
| |
150,000
|
|
|
$
|
2.25
|
|
January 25, 2016
|
| |
100,000
|
|
|
$
|
2.25
|
|
January 28, 2016
|
| |
300,000
|
|
|
$
|
2.25
|
|
January 30, 2016
|
| |
250,000
|
|
|
$
|
2.25
|
|
February 5, 2016
|
| |
40,000
|
|
|
$
|
2.25
|
|
February 21, 2016
|
| |
3,500,000
|
|
|
$
|
2.25
|
|
March 1, 2016
|
| |
200,000
|
|
|
$
|
2.25
|
|
March 11, 2016
|
| |
5,000
|
|
|
$
|
1.75
|
|
March 19, 2016
|
| |
5,000
|
|
|
$
|
1.75
|
|
March 19, 2017
|
| |
250,000
|
|
|
$
|
1.00
|
|
June 28, 2017
|
| |
11,800
|
|
|
$
|
1.00
|
|
December 13, 2017
|
| |
5,000
|
|
|
$
|
1.75
|
|
March 19, 2018
|
| |
100,000
|
|
|
$
|
1.00
|
|
September 22, 2018
|
| |
16,085,968
|
|
|
Total
|
|
|
|