RenaissanceRe 2025 Sustainability Report A Message From Our CEO About This Report Sustainability Strategy Our Portfolio Our Partnerships Our People Our Operations Our Communities Our Governance Metrics and Performance Looking Ahead Appendix 23 Our Partnerships In 2025, we deepened our academic research partnerships by joining two National Science Foundation-funded Industry University Cooperative Research Centers: Center for Interdisciplinary Research on Convective Storms — advancing the scientific understanding of convective storm impacts on society and the economy. Severe convective storms generated a reported approximately $51 billion in insured losses globally in 2025, making this one of the most consequential growing perils for the industry. Wildfire Interdisciplinary Research Center — conducting high- impact interdisciplinary wildfire research to help the world manage a growing crisis of increasing wildfire frequency and intensity. The January 2025 California wildfires alone generated a reported approximately $40 billion in insured losses, a record for the peril. These memberships give us preferred access to emerging research and data, directly informing how we model and price two of the fastest-growing catastrophe perils. Many of the challenges associated with climate and disaster risk require collective action. We collaborate with industry, public-sector and academic partners to improve risk understanding and strengthen global resilience frameworks, translating insight into practical outcomes for clients and communities. Climate Expertise We contribute to global efforts to strengthen climate and disaster resilience through active participation in industry initiatives. Our approach combines technical expertise, scientific research and collaboration across industry and academia to improve the quality, availability and application of risk data. In 2025, we contributed to initiatives including: • World Economic Forum — research on extreme heat and wildfire risk • Geneva Association — research on strengthening insurance resilience • Insurance Development Forum (IDF) — risk modeling and open data standards • IBHS— research on building performance, loss mitigation and wildfire resilience, with Craig Tillman serving on the IBHS Board and Research Advisory Council • ClimateWise/Cambridge Institute for Sustainability Leadership — chaired the Industry Advisory Committee and Managing Committee SPOTLIGHT IDF Open Risk Modelling Initiative RenaissanceRe is a founding industry member of the IDF and co-chair of the Risk Modelling Steering Group focused on advocating and developing free, open-access risk modeling tools. These tools — includingthe Oasis Risk Explorer, the Global Exposure Model, CatRiskTools and the Resilient Planet Data Hub — are designed to improve global understanding of climate and disaster risk. This commitment builds on RenaissanceRe's long-standing role in open risk analytics. We are a founding member of the Oasis Loss Modelling Framework (Oasis) in 2012, which was created to support broader access to catastrophe modeling across new models and markets. We have held a board seat in Oasis for over a decade and continue to co-chair key workstreams through the IDF Risk Modelling Steering Group. Jeff Manson SVP, Head of Global Public Sector Partnership We focus on partnerships that translate insight into action, advancing resilience, expanding access to risk transfer and supporting the long-term stability of the markets we serve.”