Core Viewpoint - Four Tree Island Advisory LLC expresses concerns about the material undervaluation of Willis Lease Finance Corporation (WLFC) shares and its significant underperformance compared to public comparables FTAI Aviation and AerCap [1][3] Group 1: Stockholder Communication and Engagement - The company seeks enhancements in stockholder communication, investment community engagement, and corporate governance [1] - Four Tree Island Advisory has made efforts to encourage improvements through private discussions and constructive research but has faced reluctance from WLFC to implement necessary changes [4] Group 2: Financial Performance and Valuation - WLFC experienced a -34% total shareholder return in 2025, significantly lagging behind FTAI Aviation and AerCap by approximately 72% and 85%, respectively [3] - The gap between WLFC's underlying value and its market valuation has expanded, leading to a belief that the company should trade at a materially higher valuation [2][3] Group 3: Call for Public Discussion - Four Tree Island Advisory believes it is time for a broader public discussion regarding WLFC's potential and the steps needed to realize it [4] - The advisory firm has released an open letter to the board to facilitate dialogue among stockholders and interested parties [5]