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 4 As a global reinsurer, we deliver significant impact through how we underwrite risk, deploy capital and apply scientific insight. This report focuses on those areas while also covering our operational performance, our people and our approach to governance. Reporting Period This report covers the period from January 1 to December 31, 2025. Where relevant, it includes forward-looking statements reflecting our current strategy and priorities. See “Looking Ahead – Note on Forward-Looking Statements.” It should be read alongside our Annual Report on Form 10-K and our Proxy Statement,filed with the SEC,and ClimateWise disclosures, which together provide a comprehensive view of our strategy, performance and risk management. Reporting Frameworks Our disclosures are informed by leading sustainability standards and frameworks, including: • Task Force on Climate-related Financial Disclosures (TCFD) • Global Reporting Initiative (GRI) Standards — 2021 Edition • Sustainability Accounting Standards Board (SASB) — Insurance Sector • United Nations Sustainable Development Goals (SDGs) • International Sustainability Standards Board (ISSB) Scope and Boundaries This report reflects activities across RenaissanceRe Holdings Ltd. and its subsidiaries (“RenaissanceRe,” the “Company,” “we,” “us,” or “our”), representing our global operations. Statements made in this report pertain to RenaissanceRe Holdings Ltd., and data is presented at a group level, with selected location-specific examples where relevant. Our Approach to Reporting We aim to provide clear, decision- useful and transparent information for our stakeholders. We expect to continue to refine our disclosures as expectations, data quality and methodologies evolve, to enhance consistency, comparability and insight over time. About RenaissanceRe RenaissanceRe is a global provider of reinsurance and insurance. We provide property, casualty and specialty reinsurance and certain insurance solutions to customers, principally through intermediaries. Established in 1993, and headquartered in Bermuda, we have offices across North America, Europe and the Asia-Pacific region. Our business is built on deep expertise in risk assessment, underwriting and capital management. We combine advanced analytics, proprietary catastrophe models and scientific insight to understand complex and evolving risks, enabling us to deliver effective, dependable solutions to our clients. Our integrated platform allows us to allocate risk efficiently across our owned balance sheets and Capital Partners vehicles, matching desirable risk with efficient capital. This flexibility supports our ability to provide consistent capacity to clients across market cycles. Sustainability is embedded in how we operate. It informs our governance, risk management and decision-making, and it is integrated into how we underwrite risk, allocate capital and support the resilience of the communities we serve. About This Report This Sustainability Report discusses certain aspects of RenaissanceRe's approach to creating long-term value. It explains ways in which we integrate environmental, social and governance (ESG) considerations into our strategy, business model and day-to-day decision-making, and how those considerations support the resilience of our business and the communities we serve. $11.7B Gross Premiums Written* $35B+ Claims Paid Since Inception** 25.9% Return on Average Common Equity* Over 30 yrs Underwriting Excellence** * For the year ended December 31, 2025. ** As at December 31, 2025.