SELECTIVE INSURANCE GROUP Business Summary

Selective Insurance Group Inc (SIGI) operates as a holding company for ten property and casualty (P&C) insurance subsidiaries, generating revenue primarily through net premiums earned and net investment income from a diversified investment portfolio. The company’s business is structured into four primary segments: Standard Commercial Lines, which contributes approximately 79% of total net premiums written; Standard Personal Lines; Excess and Surplus (E&S) Lines; and Investments. Selective distinguishes itself through a unique "high-touch" operating model and a franchise-value distribution strategy, partnering exclusively with a select group of independent insurance agencies to provide localized, data-driven underwriting and claims services. As the 34th largest P&C group in the United States, Selective competes directly with national and super-regional carriers such as Cincinnati Financial, The Hanover Insurance Group, Travelers Companies, and Kinsale Capital Group, maintaining a specialized market position focused on small-to-mid-sized commercial accounts and the mass-affluent personal segment. Founded in 1926 by Daniel L.B. Smith in Branchville, New Jersey, the company is currently led by Chairman, President, and CEO John J. Marchioni, who joined the firm in 1998 and has served as CEO since 2020. The executive leadership team includes EVP and CFO Patrick S. Brennan, who joined in 2024 with extensive experience in corporate finance and treasury, and EVP and Chief Actuary Nathan Rugge, who was promoted to his current role in early 2026. Other key executives include EVP and CIO John Bresney, a long-term veteran of the company's IT operations since 1994. The company’s governance is overseen by a seasoned Board of Directors, featuring Lead Independent Director R. Kelly Doherty and recently appointed independent directors such as Julie Parsons, a former Allstate executive, and Kate E. R. Sampson. Selective is a publicly traded entity on the NASDAQ with a consistent "A+" (Superior) financial strength rating from AM Best.