Debt

3 Months Ended

Dec. 31, 2025

Debt

Debt

7.    Debt

Debt consists of:

	December 31, 2025		September 30, 2025
Unsecured convertible promissory note (measured at fair value)	$	36,660,000	$	29,947,000
Less: current portion		(36,660,000)		(29,947,000)
Long-term debt	$	—	$	—

March 2025 Note

On March 13, 2025, the Company issued the March 2025 Note for $33,100,000 to Avondale pursuant to a Securities Purchase Agreement (“Purchase Agreement”) dated January 31, 2025. Certain terms of the March 2025 Note were approved at the Company’s annual meeting of stockholders on March 11, 2025.The net proceeds from the March 2025 Note were used to repay the Company’s unsecured convertible promissory note issued on December 22, 2022 (the “December 2022 Note”).

The March 2025 Note bears interest at the prime rate plus 3% (subject to a floor of 9.5%), is scheduled to mature on July 1, 2026, and is convertible into common stock. The Company must repay at least $3,000,000 (by cash or conversions into

common stock) of the outstanding balance on the March 2025 Note each quarter starting in the second calendar quarter of 2025 (subject to adjustments for conversions and to payment of a 7.5% exit fee) (the “Quarterly Debt Reduction Obligations”). Any amount converted by Avondale during a given calendar quarter in excess of the Quarterly Debt Reduction Obligations will be credited toward meeting the Quarterly Debt Reduction Obligations for the next quarter or quarters. During the three months ended December 31, 2025, Avondale converted $30,736 of accrued interest on the March 2025 Note into 13,600 shares of the Company’s common stock.

Avondale has the right to convert all or any portion of the outstanding balance under the March 2025 Note into shares of common stock, calculated by dividing the amount of the March 2025 Note being converted by the Conversion Price. Furthermore, the Company retains the right to convert any portion of the outstanding balance under the March 2025 Note into shares of common stock at the Conversion Price, provided certain conditions are met at the time of conversion, including, but not limited to, the condition that the daily volume-weighted average price of the Company’s common stock on Nasdaq equals or exceeds $3.00 per share (subject to adjustments for stock splits and combinations) for a continuous period of 30 trading days, and that the median daily dollar trading volume during the preceding 30 consecutive trading day period meets or exceeds $1,000,000. The Company reserves the right to make payments (i) in cash, (ii) in shares of common stock, calculated as the applicable payment amount divided by the Conversion Price, or (iii) a combination of both cash and shares of common stock. Any cash payments made by the Company, including prepayments or payments made at maturity, will incur an additional fee of 7.5%.

The March 2025 Note stipulates that the Company shall not permit any conversion of the March 2025 Note if, following such conversion, Avondale and its affiliates would beneficially own shares of common stock exceeding 4.99% of the total number of outstanding shares as of that date (the “Beneficial Ownership Limitation”). However, this limitation shall increase to 9.99% when the Company’s market capitalization falls below $25,000,000. Avondale may, by written notice to the Company, adjust the Beneficial Ownership Limitation for itself, though any such adjustment will not take effect until the 61st day after such notice is received.

In the event that specific occurrences outlined in the March 2025 Note transpire—such as the Company’s failure to fulfill payment obligations, non-compliance with the Quarterly Debt Reduction Obligations, insolvency or bankruptcy events, breaches of covenants in the Purchase Agreement and the March 2025 Note, and unauthorized transactions without Avondale's consent (collectively referred to as “Trigger Events”)—Avondale reserves the right to increase the balance of the March 2025 Note by 10% in the case of a Major Trigger Event (as defined in the March 2025 Note) and by 5% for a Minor Trigger Event (as defined in the March 2025 Note). Should any Trigger Event persist without resolution for ten trading days following written notification from Avondale, this will constitute an event of default (such event, an “Event of Default”). Upon an event of default, Avondale may accelerate the March 2025 Note, resulting in all amounts becoming immediately due and payable, with interest accruing at a rate of 22% per annum until full payment is made.

Under the terms of the March 2025 Note, the “Conversion Price” is defined as $2.26 per share prior to a Major Trigger Event (subject to adjustments for stock splits and combinations). Following a Major Trigger Event, the Conversion Price will be the lesser of (i) $2.26 per share (subject to adjustments) or (ii) 90% of the lowest closing bid price over the three trading days preceding the conversion notice. Furthermore, if the Conversion Price falls below $0.404 per share (subject to adjustments), the Company will be required to fulfill a conversion notice from Avondale in cash.

On December 31, 2025, the Company did not meet the required $3,000,000 Quarterly Debt Reduction Obligation. The failure to make this required payment constituted a Major Trigger Event under the March 2025 Note. This Major Trigger Event has not resulted in an Event of Default.

Pursuant to the terms of the March 2025 Note, the occurrence of a Major Trigger Event resulted in (i) an automatic 10% increase to the outstanding balance, effective January 1, 2026, and (ii) an adjustment to the Conversion Price. Following the adjustment, the Conversion Price is equal to the lesser of the fixed conversion price of $2.26 or 90% of the lowest closing bid price during the three trading days immediately preceding the delivery of a conversion notice, provided that the Conversion Price may not be reduced below the contractual floor price of $0.404.

The Company elected to account for the March 2025 Note at fair value (Note 4) and was not required to bifurcate the conversion option as a derivative and as a result the debt issuance costs of were written off upon election to fair value and accounted for as interest.