Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Cash Flows (Unaudited)

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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
6 Months Ended
Apr. 30, 2021
Apr. 30, 2020
Reconciliation of net loss to net cash used in operating activities:    
Net loss $ (4,669,266) $ (5,274,565)
Stock option compensation to employees and directors 1,755,638 2,019,211
Stock options and warrants issued to consultants 281,733 112,209
Depreciation of property and equipment 29,418
Gain on sale of equipment (5,447)
Amortization of operating lease right-of-use asset 28,766 25,055
Change in operating assets and liabilities:    
Prepaid expenses and other current assets (57,650) 102,909
Accounts payable 205,645 (415,039)
Accrued expenses 77,869 (45,343)
Operating lease liability (29,234) (24,509)
Net cash used in operating activities (2,411,946) (3,470,654)
Cash flows from investing activities:    
Disbursements to acquire short-term investments (10,399,300) (2,620,000)
Proceeds from maturities of short-term investments 2,640,000 2,350,000
Purchase of property and equipment (15,791)
Proceeds from sale of equipment 35,447
Net cash used in investing activities (7,723,853) (285,791)
Cash flows from financing activities:    
Gross proceeds from sale of common stock in a public offering 22,500,004
Expenses of the public offering (2,208,150)
Gross proceeds from sale of common stock in an at-the-market offering 11,174,490 3,192,131
Expenses of the at-the-market offering (340,775) (158,296)
Proceeds from sale of common stock pursuant to employee stock purchase plan 3,000 15,452
Proceeds from exercise of stock options 293,604 103,730
Net cash provided by financing activities 31,422,173 3,153,017
Net increase (decrease)in cash and cash equivalents 21,286,374 (603,428)
Cash and cash equivalents at beginning of period 6,417,061 3,491,625
Cash and cash equivalents at end of period 27,703,435 2,888,197
Supplemental cash flow information:    
Cash proceeds from interest income 1,398 22,920
Supplemental disclosure of non-cash financing activity:    
Fair value of warrants issued in connection with the public offering $ 1,040,700