On October 31, 2023, Willis Lease Finance Corporation entered into Amendment No. 4 to the Fourth Amended and Restated Credit Agreement dated as of June 7, 2019 among WLFC, the lenders party thereto from time to time and MUFG Bank Ltd. and MUFG Union Bank, N.A., as agents (as amended, the ?Credit Agreement?). Among other things, the amendment extended the maturity date of $500 million of the Credit Agreement to June 2025.