On August 22, 2017, Douglas C. Eby resigned as a member of the Board of Directors of Markel Corporation to focus his full time and energy on Cambridge Science Corporation, a newly formed business venture that grew out of his appointment as a fellow in Harvard University’s Advanced Leadership Initiative.

About Markel Corporation (NYSE:MKL)

Markel Corporation is a financial holding company serving a range of markets. The Company’s principal business markets and underwrites specialty insurance products. The Company monitors and reports its ongoing underwriting operations in three segments: U.S. Insurance, International Insurance and Reinsurance. The Company also owns interests in various industrial and service businesses that operate outside of the specialty insurance marketplace. The U.S. Insurance segment includes all direct business and facultative placements written by its insurance subsidiaries domiciled in the United States. The International Insurance segment includes all direct business and facultative placements written by its insurance subsidiaries domiciled outside of the United States, including its syndicate at Lloyd’s. The Reinsurance segment includes all treaty reinsurance written across the Company. Its non-insurance operations include the results of its legal and professional consulting services.