Operating Activities
Net cash used in operating activities consisted of net losses adjusted for certain non-cash items and changes in operating assets and liabilities.
During the nine months ended September 30, 2023, net cash used in operating activities was $18,255,540 and reflected (i) the net loss of $20,464,263, (ii) net non-cash usage items of $1,837,078, including stock-based compensation of $933,422, depreciation and amortization expense of $867,466, deferred offering costs write-off of $221,254, and non-cash interest income of $98,428, which was partially offset by amortization of premium/discount on investments of $213,492 and employee retention credit of $70,000, and (iii) a net cash outflow from changes in balances of operating assets and liabilities of $275,352. The most significant items comprising the changes in balances of operating assets and liabilities were a cash inflow of the receivable from Reprise Biomedical, Inc. of $919,179 and a cash outflow of accounts payable and accrued expenses of $469,201.
During the nine months ended September 30, 2022, net cash used in operating activities was $20,627,352 and reflected (i) the net loss of $23,013,992, (ii) net non-cash usage items of $1,573,431, including $853,130 of stock-based compensation, $817,792 of depreciation and amortization expense, amortization of premium/discount on investments of $23,038 and $758 of loss on disposal of property and equipment, partially offset by non-cash interest income of $121,287, and (iii) a net cash outflow from changes in balances of operating assets and liabilities of $813,209.
Investing Activities
During the nine months ended September 30, 2023, net cash provided by investing activities was $10,224,731, driven by proceeds from the maturity of investments of $20,000,000, partially offset by the purchase of investments of $9,742,734 and property and equipment purchase of $32,535.
During the nine months ended September 30, 2022, net cash used in investing activities was $26,882,187 and reflected purchase of investments of $26,026,125 and property and equipment purchases of $856,062.
Financing Activities
During the nine months ended September 30, 2023, net cash provided by financing activities was $8,938,888 and was primarily the result of proceeds from the sale of common stock of $8,867,082, proceeds from stock warrant exercises of $62,500 and proceeds from stock option exercises of $62,500, partially offset by payments on financing lease obligations of $38,565 and payments on employee taxes for shares withheld of $14,629.
During the nine months ended September 30, 2022, net cash provided by financing activities was $235,826 and was primarily the result of proceeds from stock warrant exercises of $414,098 and proceeds from stock option exercises of $363,671, partially offset by payments on long-term debt of $318,432, payments on offering costs of $182,899 and payments on financing lease obligations of $40,612.
Item 3. Quantitative and Qualitative Disclosures About Market Risk
Not required for smaller reporting companies.
Item 4. Controls and Procedures
Evaluation of Disclosure Controls and Procedures
Disclosure controls and procedures are designed to ensure that information required to be disclosed by us in our Exchange Act reports is recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including our principal executive officer and principal financial officer or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.