The company announced the death on Tuesday without disclosing a cause. Since establishing the firm in 1967, Berkley grew the organization into one of the most prominent commercial insurers worldwide. His leadership style, defined by a long-term perspective and a distinct corporate culture, remained the bedrock of the business throughout his career.

Following the news, the company confirmed that his son, W. Robert Berkley, Jr., has assumed the role of executive chairman effective immediately. In a public statement, the younger Berkley noted that his father’s vision was instrumental in shaping the company’s trajectory. The transition signals a continuity of strategy for the holding company as it navigates the loss of its founder.