Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets

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Consolidated Balance Sheets - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Current assets:    
Cash and cash equivalents $ 10,501,589 $ 8,320,317
Marketable securities   22,131,936
Prepaid expenses and other current assets 2,340,520 988,799
Total current assets 12,842,109 31,441,052
Property and equipment, net 1,147,727 1,076,099
Operating lease right-of-use assets 3,098,179  
Other assets 355,420 355,420
Total assets 17,443,435 32,872,571
Current liabilities:    
Accounts payable 4,373,643 1,427,287
Accrued liabilities 2,657,354 4,369,732
Current portion of lease liabilities 628,676  
Total current liabilities 7,659,673 5,797,019
Deferred rent   679,182
Warrant liabilities 2,159,192 20,781,663
Long-term portion of lease liabilities 3,332,866  
Other liabilities 72,747 72,747
Total liabilities 13,224,478 27,330,611
Commitments and contingencies
Stockholders' equity:    
Preferred stock, $0.0001 par value, 25,000,000 shares authorized and none outstanding at September 30, 2019 and December 31, 2018
Common stock, $0.0001 par value, 200,000,000 shares authorized; 79,409,556 shares issued and outstanding at September 30, 2019 and December 31, 2018, respectively 7,941 7,941
Additional paid-in capital 205,969,917 204,884,211
Accumulated other comprehensive loss   (30,300)
Accumulated deficit (201,758,901) (199,319,892)
Total stockholders' equity 4,218,957 5,541,960
Total liabilities and stockholders' equity $ 17,443,435 $ 32,872,571