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v3.24.1

Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Cash flows from operating activities: |  |
Net loss | $ (19,514,977) | $ (35,898,234)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation | 248,154 | 196,510
Amortization of right-of-use assets | 471,851 | 535,119
Recognition of deferred revenue |  | (500,000)
Realized and unrealized losses, net, on investment securities | 34,302 | 34,468
Change in fair value of earn-out milestone liability |  | (5,396,000)
Stock-based compensation | 759,013 | 2,673,047
Change of deferred income tax asset | 286,641 | (183,580)
Loss on extinguishment of debt | 329,158 |
Write-off of note receivable (Transomic) | 375,000 |
Impairment of in-process research and development |  | 13,366,234
Amortization of deferred finance charges and debt discount associated with note payable | 55,122 | 181,259
Net changes in: |  |
Accrued interest receivable on investment securities | 68,136 | (20,088)
Advances, deposits, and other current assets | (141,619) | 43,980
Other assets |  | (241,511)
Accounts payable and accrued liabilities | (1,992,929) | 2,111,901
Net cash used in operating activities | (19,022,148) | (23,096,895)
Cash flows from investing activities: |  |
Purchases of investment securities | (13,541,806) | (48,226,390)
Proceeds from sale and maturity of investment securities | 25,000,000 | 56,775,000
Purchases of property and equipment | (451,759) | (267,800)
Net cash provided by investing activities | 11,006,435 | 8,280,810
Cash flows from financing activities: |  |
Proceeds from redeemable convertible preferred stock offering |  | 28,500,000
Payment upon redemption of redeemable convertible preferred stock |  | (28,500,000)
Proceeds from sale of common stock equity, net of issuance costs | 2,781,438 | 6,722,654
Payoff of the SVB loan and accrued end-of-term fees | (6,420,000) |
Net cash (used in) provided by financing activities | (3,638,562) | 6,722,654
Net change in cash, cash equivalents and restricted cash | (11,654,275) | (8,093,431)
Cash, cash equivalents and restricted cash at beginning of year | 17,492,841 | 25,586,272
Cash, cash equivalents and restricted cash at end of year | 5,838,566 | 17,492,841
Supplemental disclosure of cash flow information: |  |
Income taxes paid | 2,500 | 2,000
Interest | 179,542 | 4,847,359
Non-Cash Investing and Financing Activities |  |
Recognition of right of use asset and liability | $ 1,911,049 |

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