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v3.23.1

Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Cash flows from operating activities: |  |
Net loss | $ (15,591,428) | $ (24,095,727)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and amortization | 0 | 93,416
Loss on disposal of property and equipment | 0 | 51,782
Stock-based compensation expense | 928,052 | 897,260
Abandonment of in-process research and development intangible asset | 0 | 8,639,000
Change in deferred income taxes | 0 | (443,893)
Amortization of premium and discount on marketable securities | 208,577 | (0)
Changes in operating assets and liabilities: |  |
Prepaid expenses, deposits and other assets | 413,187 | (248,997)
Accounts payable, accrued expenses and other current liabilities | (510,348) | 605,370
Net cash used in operating activities | (14,969,114) | (14,501,789)
Cash flows from investing activities: |  |
Cash received from sale of property and equipment | 0 | 4,000
Purchases of marketable securities | (37,985,738) | 0
Maturities of marketable securities | 25,750,000 | 0
Net cash used in investing activities | (12,235,738) | 4,000
Cash flows from financing activities: |  |
Proceeds from the sale of common stock, net of issuance cost | 0 | 31,094,302
Proceeds from Warrant Exercises | 0 | 2,201,450
Proceeds from the sale of preferred stock | 5,000 | 0
Net cash provided by financing activities | 5,000 | 33,295,752
Net (decrease) increase in cash and cash equivalents | (27,199,852) | 18,797,963
Cash and cash equivalents at beginning of year | 37,313,558 | 18,515,595
Cash and cash equivalents at end of year | 10,113,706 | 37,313,558
Supplemental disclosure of non-cash investing and financing activities: |  |
Conversion of Series C preferred stock to common stock | 5,000 | 0
Unrealized loss on marketable securities | 35,375 | 0
Vesting of restricted stock units | $ 1,361 | $ 207

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