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W. R. Berkley Corporation (WRB) is an insurance holding company headquartered in Greenwich, Connecticut and has a market capitalization of $28.8 billion. The firm operates primarily in the property-casualty insurance and reinsurance sectors, offering specialized commercial insurance products and reinsurance on both admitted and non-admitted bases across multiple geographies.
Its decentralized operational structure allows individual business units to respond quickly to local market conditions and encourages accountability among management. It is scheduled to announce its fiscal Q3 2025 earnings report after the market closes on Monday, Oct. 20.