Pursuant to the Note Purchase Agreement, as amended from time-to time, leading to the Third Amended and Restated Note Purchase Agreement dated December 15, 2022 (the “Third Amended and Restated Notes”), as of March 31, 2026 and December 31, 2025, the Company has notes outstanding referred to as the senior secured notes (the “Senior Secured Notes”), the delayed draw term notes (the “Delayed Draw Term Notes”), the 2022 bridge notes (the “2022 Bridge Notes”) and the 2023 Notes, as further described below (see Note 17) and collectively referred to as the “Term Debt”.

On December 31, 2025, the Company entered into Amendment No. 4 to the Third Amended and Restated Note Purchase Agreement (“Amendment No. 4”). Amendment No. 4 amended the definition of “Maturity Date” for all of the Term Debt

to the earlier of (i) December 31, 2027 or (ii) acceleration upon an event of default. In addition, the Company made a curtailment payment of $13,000, which was applied to reduce the outstanding principal balance of all notes in the Term Debt.

Senior Secured Notes

The terms of the Senior Secured Notes provide for:


			●			a provision for the Company to enter into Delayed Draw Term Notes (as described below);

			●			a provision where the Company added $13,852 to the principal balance of the notes for interest payable prior to January 1, 2022 as payable in-kind;

			●			a provision where the paid in-kind interest can be paid in shares of the Company’s common stock based upon the conversion rate specified in the Certificate of Designation for the Series K convertible preferred stock, subject to certain adjustments;

			●			an interest rate of 10.0% per annum, subject to adjustment in the event of default, with a provision that within one (1) business day after receipt of cash proceeds from any issuance of equity interests, unless waived, the Company will prepay certain obligations in an amount equal to such cash proceeds, net of underwriting discounts and commissions;

			●			interest on the notes payable after February 15, 2022, at the agent’s sole discretion, either (a) in cash quarterly in arrears on the last day of each fiscal quarter or (b) by continuing to add such interest due on such payment dates to the principal amount of the notes;

			●			a maturity date of December 31, 2027, subject to certain acceleration conditions; and

			●			the Company to enter into the 2022 Bridge Notes for $36,000 (as further described below).

Delayed Draw Term Notes

The terms of the Delayed Draw Term Notes provide for:


			●			an interest rate of 10.0% per annum, subject to adjustment in the event of default;

			●			interest on the notes payable after February 15, 2022, at the agent’s sole discretion, either (a) in cash quarterly in arrears on the last day of each fiscal quarter or (b) by continuing to add such interest due on such payment dates to the principal amount of the notes; and

			●			a maturity date on December 31, 2027, subject to certain acceleration terms.

The terms of the 2022 Bridge Notes provide for:


			●			an interest rate fixed at 10.0% per annum (as amended from interest that was payable in cash at an interest rate of 12% per annum quarterly; with interest rate increases of 1.5% per annum on March 1, 2023, May 1, 2023, and July 1, 2023, pursuant to the First Amendment, (as further described below);

			●			a maturity date of December 31, 2027, subject to certain mandatory prepayment requirements, including, but not limited to, a requirement that the Company apply the net proceeds from certain debt incurrences or equity offerings to repay the notes; and

			●			an election to prepay the 2022 Bridge Notes, at any time, in whole or in part with no premium or penalty.

The terms of the 2023 Notes, pursuant to Amendment No. 1 under the Third Amended and Restated Notes dated August 14, 2023, provide for:


			●			an interest rate fixed at 10.0% per annum;

			●			a maturity date of December 31, 2027; and

			●			an election to prepay the 2023 Notes, at any time, at 100% of the principal amount due with no premium or penalty.

The following table summarizes Term Debt:


	As of March 31, 2026						As of December 31, 2025
	Principal Balance		Unamortized Discount and Debt Issuance Costs		Carrying Value		Principal Balance		Unamortized Discount and Debt Issuance Costs		Carrying Value
Senior Secured Notes, effective interest rate of 10.1% as of March 31, 2026, as amended	$	55,328	$	(70)	$	55,258	$	55,328	$	(80)	$	55,248
Delayed Draw Term Notes, effective interest rate of 12.6% as of March 31, 2026, as amended	3,531		(8)		3,523		3,531		(9)		3,522
2022 Bridge Notes, effective interest rate of 11.5% as of March 31, 2026, as amended	31,772		(21)		31,751		31,772		(24)		31,748
2023 Notes, effective interest rate of 12.4% as of March 31, 2026, as amended	7,060		—		7,060		7,060		—		7,060
Total	$	97,691	$	(99)	$	97,592	$	97,691	$	(113)	$	97,578

The debt issuance costs incurred, as amended based on certain debt modifications, are being amortized on a straight-line basis (which approximates the effective interest method) over the applicable term of the Term Debt.

Information for the three months ended March 31, 2026 and 2025 with respect to interest expense related to the Term Debt is provided below.