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v3.25.2

Consolidated Statements of Cash Flows (Unaudited) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 | Mar. 31, 2025 | Jun. 30, 2024 | Mar. 31, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Cash flows from operating activities |  |  |  |  |  |  |
Net loss | $ (1,793,774) | $ (2,027,579) | $ (2,045,223) | $ (2,009,596) | $ (3,821,353) | $ (4,054,819) |
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |  |  |  |  |
Stock-based compensation expense | 340,462 |  | 297,603 |  | 565,492 | 604,081 |
Amortization of held-to-maturity securities, net |  |  |  |  | (15,996) | (27,699) |
Amortization of debt issuance costs |  |  |  |  | 23,794 | 26,717 |
Gain from the sale of investment in Alphazyme |  |  |  |  |  | (60,977) |
Foreign currency exchange loss (gain), net |  |  |  |  | 23,170 | 8,049 |
Changes in operating assets and liabilities: |  |  |  |  |  |  |
Interest receivable |  |  |  |  | (10,488) | (18,077) |
Accounts receivable |  |  |  |  | (471,860) | 210,725 |
Prepaid expenses and other current assets |  |  |  |  | 218,050 | 201,073 |
Operating lease assets and liabilities |  |  |  |  | 11 | 870 |
Accounts payable |  |  |  |  | 224,080 | (224,307) |
Accrued expenses |  |  |  |  | 191,009 | 152,800 |
Accrued interest |  |  |  |  |  | 80,000 |
Accrued interest - related party |  |  |  |  | (5,373) | 32,000 |
Deferred research and development obligation |  |  |  |  | 999,718 | (7,790) |
Net cash used in operating activities |  |  |  |  | (2,079,746) | (3,077,354) |
Cash flows from investing activities |  |  |  |  |  |  |
Purchases of held-to-maturity investment securities |  |  |  |  | (4,560,278) | (4,734,528) |
Proceeds from maturities of investment securities |  |  |  |  | 4,080,762 | 1,546,000 |
Proceeds from the sale of investment in Alphazyme |  |  |  |  |  | 60,977 |
Net cash used in investing activities |  |  |  |  | (479,516) | (3,127,551) |
Cash flows from financing activities |  |  |  |  |  |  |
Proceeds from exercise of stock |  |  |  |  | 24,249 |  |
Proceeds from issuance of convertible notes, net of issuance costs |  |  |  |  |  | 3,882,884 |
Proceeds from issuance of convertible notes, net of issuance costs - related party |  |  |  |  |  | 1,941,442 |
Net cash provided by financing activities |  |  |  |  | 24,249 | 5,824,326 |
Effect of exchange rate changes on cash |  |  |  |  | 2,693 | (1,051) |
Net decrease in cash, cash equivalents, and restricted cash and cash equivalents |  |  |  |  | (2,532,320) | (381,630) |
Cash, cash equivalents, and restricted cash and cash equivalents at beginning of period |  | $ 6,506,750 |  | $ 6,515,028 | 6,506,750 | 6,515,028 | $ 6,515,028
Cash, cash equivalents, and restricted cash and cash equivalents at end of period | 3,974,430 |  | 6,133,398 |  | 3,974,430 | 6,133,398 | 6,506,750
Reconciliation of cash, cash equivalents, and restricted cash and cash equivalents to the consolidated balance sheets |  |  |  |  |  |  |
Cash and cash equivalents | 2,140,899 |  | 6,133,398 |  | 2,140,899 | 6,133,398 | 6,506,750
Restricted cash and cash equivalents, current | 1,588,384 |  |  |  | 1,588,384 |  |
Restricted cash and cash equivalents, noncurrent | 245,147 |  |  |  | 245,147 |  |
Total cash, cash equivalents, and restricted cash and cash equivalents | $ 3,974,430 |  | $ 6,133,398 |  | 3,974,430 | 6,133,398 |
Supplemental cash flow information |  |  |  |  |  |  |
Vesting of restricted stock units |  |  |  |  | 269,100 | 439,085 |
Conversion of convertible notes |  |  |  |  |  | 400,000 |
Cash paid for interest |  |  |  |  | $ 208,973 | $ 34,844 |

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