X0609 4 2026-03-16 0001018164 WILLIS LEASE FINANCE CORP WLFC 0001453104 Willis Austin Chandler 4700 LYONS TECHNOLOGY PARKWAY COCONUT CREEK FL 33073 true true true false Chief Executive Officer false Common Stock 2026-03-16 4 M false 6315 A 187661 D Common Stock 2026-03-16 4 F false 785 167.18 D 186876 D Common Stock 1822 I Son Common Stock 1822 I Daughter Common Stock 22322 I Brother Common Stock 3449 I Austin C. Willis 2019 Irrevocable Trust Common Stock 8692 I CFW V 2016 Trust Common Stock 232715 I 2019 Willis Family Trust Common Stock 405488 I CFW Partners Performance-based Restricted Stock Award 2026-03-16 4 M false 6315 D Common Stock 6315 0 D Performance-based restricted stock award ("PSA") granted in 2025 subject to performance-based and time-based vesting over two years. Performance-based vesting criteria, which included a combination of profitability of the Issuer's services businesses, growth of the Issuer's leasing portfolio and the viability of the Issuer's Sustainable Aviation Fuel initiative, were certified on March 16, 2026. Each PSA represents a contingent right to receive one share of the Issuer's common stock upon vesting. Return to Issuer of previously restricted shares to satisfy withholding tax liability. Rooster A. Willis 2019 Trust, Austin Willis Trustee. Wilder Grace Willis 2019 Trust, Austin Willis Trustee. Charles F. Willis V 2019 Trust, Austin Willis Trustee. Austin C. Willis 2019 Irrevocable Trust, Mary Willis Trustee. Charles F. Willis V 2016 Trust, Austin Willis Trustee. 2019 Willis Family Trust, Austin Willis Trustee. Includes 213,415 shares having shared voting power of CFW Partners with Charles F. Willis IV. Shared voting power of CFW Partners with Charles F. Willis IV. Reported amount has been adjusted to reflect the actual number of PSAs earned, based on the extent to which the performance-based vesting criteria were achieved. The remaining 5,343 PSAs of the 100% target amount reported in the Form 4 filed by the Reporting Person on January 6, 2025 were forfeited. /s/ Austin C. Willis 2026-03-18