Quarterly report pursuant to Section 13 or 15(d)

Unaudited Condensed Balance Sheets

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Unaudited Condensed Balance Sheets - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Current assets:    
Cash and cash equivalents $ 12,950 $ 11,439
Short-term investments 26,110 32,718
Prepaid expenses and other current assets 958 7,251
Restricted cash 55 55
Total current assets 40,073 51,463
Other assets 812 812
Deferred offering costs 104 106
Restricted cash 273 273
Property and equipment, net 488 516
Operating lease right-of-use asset (See Note 7) 3,317 0
Total assets 45,067 53,170
Current liabilities:    
Accounts payable 2,346 3,653
Accrued expenses 2,211 2,103
Deferred revenue 54 121
Operating lease liability, current portion (See Note 7) 27 0
Total current liabilities 4,638 5,877
Warrant liabilities 7,508 986
Loan payable expected to be refinanced 0 15,082
Convertible debt and derivative liability (See Note 6) 18,296 0
Operating lease liability (See Note 7) 3,295 0
Total liabilities 33,737 21,945
Commitments and contingencies
Stockholders’ equity:    
Preferred stock, $0.001 par value, authorized 5,000,000 shares as of March 31, 2019 and December 31, 2018; 0 shares issued and outstanding as of March 31, 2019 and December 31, 2018 0 0
Common stock, $0.001 par value, 125,000,000 shares authorized as of March 31, 2019, and December 31, 2018; 50,232,429 and 47,971,989 shares issued and outstanding as of March 31, 2019, and December 31, 2018, respectively 50 48
Additional paid-in capital 251,906 248,895
Accumulated deficit (240,626) (217,718)
Total stockholders’ equity 11,330 31,225
Total liabilities and stockholders’ equity $ 45,067 $ 53,170