Quarterly report pursuant to Section 13 or 15(d)

Balance Sheets

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Balance Sheets - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Current assets:    
Cash and cash equivalents $ 44,758,397 $ 50,729,661
Accounts receivable 156,775 75,850
Prepaid expenses and other current assets 742,193 636,702
Total current assets 45,657,365 51,442,213
Property and equipment, net 449,664 402,711
Operating lease right-of-use assets 1,097,377 1,293,291
Other assets 1,610 1,610
Total assets 47,206,016 53,139,825
Current liabilities:    
Accounts payable 1,450,767 1,096,839
Accrued expenses 1,756,286 1,576,287
Operating lease liabilities, current portion 805,557 825,431
Deferred revenue 17,000 12,000
Total current liabilities 4,029,610 3,510,557
Operating lease liabilities, long-term portion 386,424 576,762
Total liabilities 4,416,034 4,087,319
Commitments and contingencies
Stockholders’ equity:    
Preferred Stock, $0.00001 par value, 10,000,000 shares authorized at March 31, 2021 and December 31, 2020; no shares issued or outstanding
Common Stock, $0.00001 par value, 200,000,000 shares authorized at March 31, 2021 and December 31, 2020, respectively; 61,919,824 and 61,292,412 shares issued and outstanding at March 31, 2021 and December 31, 2020, respectively. 620 614
Additional paid-in capital 346,287,871 344,024,638
Accumulated deficit (303,498,509) (294,972,746)
Total stockholders’ equity 42,789,982 49,052,506
Total liabilities and stockholders’ equity $ 47,206,016 $ 53,139,825