Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets

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Consolidated Balance Sheets - USD ($)
Mar. 31, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 10,631,943 $ 24,184,140
Marketable securities 6,018,894  
Prepaid expenses and other current assets 5,632,510 6,575,375
Total current assets 22,283,347 30,759,515
Property and equipment, net 1,052,169 1,099,948
Operating lease right-of-use assets 2,987,806 3,043,826
Other assets 105,420 105,420
Total assets 26,428,742 35,008,709
Current liabilities:    
Accounts payable 6,634,890 2,622,272
Accrued liabilities 1,633,881 6,803,789
Current portion of lease liabilities 634,932 631,889
Total current liabilities 8,903,703 10,057,950
Warrant liabilities 5,653,145 6,068,978
Long-term portion of lease liabilities 3,190,626 3,264,128
Other liabilities 72,747 72,747
Total liabilities 17,820,221 19,463,803
Commitments and contingencies
Stockholders' equity:    
Preferred stock, $0.0001 par value, 25,000,000 shares authorized and none outstanding at March 31, 2020 and December 31, 2019
Common stock, $0.0001 par value, 125,000,000 shares authorized, 15,332,042 shares issued and outstanding at March 31, 2020; 200,000,000 shares authorized, 15,332,042 shares issued and outstanding at December 31, 2019 1,533 1,533
Additional paid-in capital 228,290,660 227,657,758
Accumulated other comprehensive income 9,199  
Accumulated deficit (219,692,871) (212,114,385)
Total stockholders' equity 8,608,521 15,544,906
Total liabilities and stockholders' equity $ 26,428,742 $ 35,008,709