Quarterly report pursuant to Section 13 or 15(d)

WARRANTS (Tables)

v3.7.0.1
WARRANTS (Tables)
6 Months Ended
Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of transactions involving of warrants

Transactions involving our warrants are summarized as follows:

 

      Number of
shares
    Weighted-
average exercise
price
    Weighted-average
remaining contractual
term (in years)
    Aggregate
intrinsic
value (in
thousands)
 
Outstanding at December 31, 2016       5,203,436     $ 4.56                  
Issued       1,238,479       0.80                  
Expired       (1,338,373 )   $ 0.58                  
Outstanding at June 30, 2017       5,103,542     $ 4.47       2.2     $  
                                     
Exercisable at June 30, 2017       5,097,829     $ 4.47       2.2     $
Schedule of outstanding warrants to purchase common stock

The following table summarizes outstanding common stock purchase warrants as of June 30, 2017:

 

  Number of
shares
    Weighted-
average
exercise
price
    Expiration  
Issued to consultants     104,213     $ 7.24       January 2018 through August 2023  
Issued pursuant to 2013 financings     155,819     $ 61.11       December 2017 through August 2018  
Issued pursuant to 2014 financings     96,412     $ 34.50       June 2019  
Issued pursuant to 2015 financings     785,339     $ 8.65       July 2017 through January 2021  
Issued pursuant to 2016 financings     2,800,006     $ 0.53       December 2017 through December 2021  
Issued pursuant to 2017 financings     1,161,753     $ 0.80       September 2017 through April 2022  
      5,103,542