GeoVax Labs, Inc.

*Operating Leases.*During 2025, we leased combined office and laboratory space in the metropolitan Atlanta, Georgia area under an operating lease agreement which expired on December 31, 2025. In August and September 2025, we entered into new agreements for the lease of laboratory space and office space. Each of these agreements provided access to the respective spaces beginning November 1, 2025 forthree-year terms, with periodic base rent adjustments throughout the terms. Total operating lease expense for the years ended December 31, 2025 and 2024 was $228,341 and $187,527, respectively.

Operating lease right-of-use assets and liabilities on the consolidated balance sheet represent the present value of the remaining lease payments over the remaining lease terms. Payments for additional fees to cover the Company's share of certain facility expenses are not included in operating lease right-of-use assets and liabilities. The Company uses its incremental borrowing rate to calculate the present value of its lease payments, as the implicit rates in the leases are not readily determinable. As of December 31, 2025, the weighted-average discount rate for our operating leases was 7.0% and the weighted-average remaining term of these leases was 2.8 years.

The following table summarizes the Company’s undiscounted cash payment obligations for its operating lease liabilities as of December 31, 2025:

*License Agreements.*We have entered into license agreements for various technologies and patent rights associated with our product development activities. These agreements may contain provisions for upfront payments, milestone fees due upon the achievement of selected development and regulatory events, minimum annual royalties or other fees, and royalties based on future net sales. Due to the uncertainty of the achievement and timing of the contingent events requiring payment under these agreements, the amounts to be paid by us in the future are not determinable.

Other Commitments. In the normal course of business, we enter into various contracts and purchase commitments including those with contract research organizations (“CROs”) and contract manufacturing organizations (“CMOs”) for clinical trials services and production of materials for use in our clinical trials. Most contracts are generally cancellable, with notice, at the Company’s option. Payments due upon cancellation may consist of payments for services provided or expenses incurred to date, or cancellation penalties depending on the time of cancellation.