Note 4 – Debt

Loan and Security Agreement

In April 2020, the Company entered into a loan and security agreement (the “Loan and Security Agreement”) pursuant to which a secured promissory note in the original principal amount of $500,000 (the “FRV Note”) was issued to each of Front Range Ventures LLC (“FRV”) and John Q. Adams (the “JQA Note”), who were both shareholders of the Company at the time of issuance. John Q. Adams was also a director of the Company at the time

of entering into the Loan and Security Agreement. Each party committed to lend a principal amount of $500,000, totaling $1,000,000, and the loan was drawn in three installments of $300,000 upon execution of the loan agreement, $350,000 on or about July 2, 2020 and $350,000 on or about September 4, 2020. The loan accrued interest at a rate of 12% per annum, compounded annually, payable at maturity. The Company is also required to pay default interest at a rate of 18% per annum, compounded annually, on any unpaid amounts after the applicable due date until the loan amounts are fully re-paid. The loan is collateralized by substantially all of the Company’s assets and intellectual property, except for the secured interest on the covered technology as discussed in Note 8.

The loan had an original maturity date of September 30, 2021, which was amended in September 2021 making the note repayable on demand. The loan was amended in November 2021, extending the maturity to September 30, 2022; further amended in May 2022 to extend the maturity to September 30, 2023; amended again in January 2023 to (i) further extend the maturity date of the FRV Note to September 30, 2024, on which date the principal amount and all accrued interest thereon would be due and payable; and (ii) amend the dates on which principal and accrued interest was due under the JQA Note, such that interest accrued would be due and payable on September 30, 2023, and the principal amount together with all accrued interest after September 30, 2023 would be due and payable on March 31, 2024.

In October 2023, the Company issued to FRV and Mr. Adams warrants (“$1M Lender Warrants”) to purchase an aggregate of 2,000 shares of Common Stock as consideration for the extension of the interest maturity date to one lender. On November 16, 2023, the Company entered into a note conversion letter agreement with John Q. Adams (the “Adams Note Conversion Letter Agreement”). Pursuant to the Adams Note Conversion Letter Agreement, in consideration for the conversion of the principal and interest in the amounts of $585,006 due under the JQA Note, on November 16, 2023, the Company: (1) issued 36,563 shares of Common Stock to Mr. Adams; and (2) entered into a Adams Warrant Amendment (as defined below) with Mr. Adams, amending the $1M Lender Warrants to reduce the exercise price of an aggregate of 1,076 $1M Lender Warrants to $16.00 per share (the “Adams Warrant Amendment”).

On August 19, 2024, the Company and FRV entered into Amendment No. 6 to the Loan and Security Agreement to further extend the maturity date of the FRV Note to September 30, 2025 and pay the outstanding accrued interest as follows: (i) a payment of all accrued interest outstanding within five (5) business days of execution of the agreement; (ii) a payment of accrued interest on September 30, 2024 and (iii) thereafter all accrued interest due shall be payable at maturity. The Company may elect to repay all or any part of the FRV Note, as amended, in its sole discretion at any time prior to the extended maturity date, provided such repayment shall not be less than $50,000 and shall first be applied to accrued interest and thereafter to outstanding principal. During the year ended April 30, 2025, the Company paid approximately $305,000 in accrued interest to FRV.

As of April 30, 2025 and April 30, 2024, accrued interest was approximately $35,000 and $269,000, respectively, and is included in accrued interest expense in the accompanying condensed balance sheets.

Streeterville Note

In September 2024, the Company entered into a Note Purchase Agreement with Streeterville, pursuant to which the Company issued to Streeterville the unsecured Streeterville Note in the original principal amount of $2,510,000. The Streeterville Note carried an OID of $500,000 and $10,000 was withheld from the Streeterville Note for reimbursement of Streeterville's transaction expenses. Additionally, the Company incurred debt financing costs of $159,700. As a result, the Company received aggregate net proceeds of approximately $1.9 million in connection with the issuance of the Streeterville Note.

The Streeterville Note bears interest at the rate of 8.5% per annum and matures in March 2026. From time to time, beginning six months after issuance, Streeterville may redeem a portion of the Streeterville Note, not to exceed $270,000 per month. In the event the Company has not reduced the outstanding balance under the Streeterville Note by at least $900,000 by the 12-month anniversary following the issuance date, then the outstanding balance at such time will automatically increase by 5%. Subject to terms and conditions set forth in the Streeterville Note, the Company may prepay all or any portion of the outstanding balance of the Streeterville Note at any time.

The Streeterville Note contains customary events of default, including if the Company undertakes a fundamental transaction (including consolidations, mergers, and certain changes in control of the Company), without Streeterville’s

prior written consent. As described in the Streeterville Note, upon the occurrence of certain events of default, the outstanding balance of the Streeterville Note will become automatically due and payable. Additionally, upon an event of default described in the Streeterville Note (i.e., the failure to pay amounts under the Streeterville Note when due or to observe any covenant under the Note Purchase Agreement), the outstanding balance of the Streeterville Note automatically increases to the lesser of 18% or the maximum rate permitted by law.

The OID and deferred financing costs pursuant to the Streeterville Note are being amortized over the life of the note as a non-cash interest expense. During the year ended April 30, 2025, the Company recorded amortization of approximately $286,000 of the debt discount and as of April 30, 2025, the unamortized debt discount was $374,000.

In March and April 2025, the Company entered into exchange agreements with Streeterville, pursuant to which Streeterville exchanged $85,000 in aggregate principal owed under the Streeterville Note for 26,952 shares of the Company's Common Stock. The issuance of the shares was made pursuant to the exemption from the registration requirements afforded by Section 3(a)(9) of the Securities Act (Note 5).

As of April 30, 2025, accrued interest was approximately $143,000, and is included in accrued interest expense in the accompanying condensed balance sheets.

MSW Note

On September 6, 2023, the Company entered into the MSW Note with Matthews Holdings Southwest, Inc., (the “Lender”). The MSW Note provided for an unsecured drawdown loan of up to $1.0 million, drawn in installments consisting of (i) $250,000 on or prior to September 8, 2023, (ii) $250,000 on or prior to September 20, 2023, and (iii) further draw downs of up to $500,000 in such amounts and such times to be mutually agreed upon between the Company and Lender.

In September 2023, the Company drew $0.5 million under the MSW Note and issued warrants in lieu of a facility fee to purchase 5,000 shares of Common Stock exercisable at $100.00 per share, warrants to purchase 2,500 shares of Common Stock exercisable at $125.00 per share, and warrants to purchase 2,500 shares of Common Stock exercisable at $150.00 per share.

On November 16, 2023, the Company entered into a note conversion letter agreement with the Lender (the “MSW Note Conversion Letter Agreement”). Pursuant to the MSW Note Conversion Letter Agreement, in consideration for the conversion of the aggregate amount of $500,000 due under the MSW Note, on November 16, 2023, the Company (i) issued to the Lender 31,250 shares of Common Stock at a conversion price of $16.00 per share; and (ii) entered into a Warrant Amendment Agreement with the Lender, amending the warrants to reduce the exercise price of an aggregate of 10,000 warrants to $16.00 per share (the “MSW Warrant Amendment”). See further discussion in Note 5. In accordance with the terms, no interest was payable as the note converted prior to maturity.