X0609 4 2026-03-16 0001018164 WILLIS LEASE FINANCE CORP WLFC 0001033309 WILLIS CHARLES F IV 4700 LYONS TECHNOLOGY COCONUT CREEK FL 33073 true true true false Executive Chairman false Common Stock 2026-03-16 4 M false 10888 A 956176 D Common Stock 2026-03-16 4 F false 1355 167.18 D 954821 D Common Stock 13798 I Spouse Common Stock 2134148 I CFW Partners Common Stock 584 I Granddaughter Performance-based Restricted Stock Award 2026-03-16 4 M false 10888 D Common Stock 10888 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. Charlotte Montressor Willis. Wilder Grace Willis 2016 Trust. 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 9,212 PSAs of the 100% target amount reported in the Form 4 filed by the Reporting Person on January 6, 2025 were forfeited. /s/ Charles F. Willis IV 2026-03-18