Annual report pursuant to Section 13 and 15(d)

Consolidated Statement of Changes in Stockholders' Equity

v3.19.1
Consolidated Statement of Changes in Stockholders' Equity - USD ($)
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Total
Balance at Dec. 31, 2015 $ 44,067 $ 134,160,059 $ (112,230,078) $ 21,974,048
Balance, shares at Dec. 31, 2015 44,066,541      
Stock-based compensation $ 82 4,297,696   4,297,778
Stock-based compensation, shares 81,700      
Sale of common stock and warrants, net of offering costs $ 11,504 16,011,163   16,022,667
Sale of common stock and warrants, net of offering costs, shares 11,504,427      
Issuance of common stock from exercise of options $ 23 18,082   18,105
Issuance of common stock from exercise of options, shares 23,212      
Issuance of common stock from exercise of warrants $ 126 (126)  
Issuance of common stock from exercise of warrants, shares 125,862      
Transfer of warrant derivatives from liability to equity classification 17,455   17,455
Net loss (24,321,724) (24,321,724)
Balance at Dec. 31, 2016 $ 55,802 154,504,329 (136,551,802) 18,008,329
Balance, shares at Dec. 31, 2016 55,801,742      
Stock-based compensation $ 93 3,474,282   3,474,375
Stock-based compensation, shares 93,385      
Sale of common stock and warrants, net of offering costs $ 24,173 18,765,461   18,789,634
Sale of common stock and warrants, net of offering costs, shares 24,172,973      
Issuance of common stock from exercise of warrants $ 4 (4)  
Issuance of common stock from exercise of warrants, shares 4,234      
Net loss (26,601,235) (26,601,235)
Balance at Dec. 31, 2017 $ 80,072 176,744,068 (163,153,037) 13,671,103
Balance, shares at Dec. 31, 2017 80,072,334      
Modified retroactive adjustment for derivative liability 66,154 (50,238) 15,916
Stock-based compensation $ 157 1,798,498   1,798,655
Stock-based compensation, shares 156,393      
Sale of common stock and warrants, net of offering costs $ 34,614 16,941,623   16,976,237
Sale of common stock and warrants, net of offering costs, shares 34,614,448      
Issuance of commitment shares to Lincoln Park $ 853 (853)    
Issuance of commitment shares to Lincoln Park, shares 852,537      
Issuance of common stock from exercise of warrants $ 7 4,842   4,849
Issuance of common stock from exercise of warrants, shares 7,332      
Net loss (23,653,963) (23,653,963)
Balance at Dec. 31, 2018 $ 115,703 $ 195,554,332 $ (186,857,238) $ 8,812,797
Balance, shares at Dec. 31, 2018 115,703,044