Business Description

Overview ProAssurance Corporation is a holding company for property and casualty insurance companies. For the year ended December 31, 2025, our net premiums written totaled $0.9 billion, and at December 31, 2025 we had total assets of $5.4 billion and $1.3 billion of shareholders' equity. Our Mission We Protect Others Our Vision We will be the best in the world at understanding and providing solutions for the risks our customers encounter as healers, innovators, employers and professionals. Through an integrated family of specialty companies, products and services, we will be a trusted partner enabling those we serve to focus on their vital work. As the Employer of Choice, we embrace every day as a singular opportunity to reach for extraordinary outcomes, build and deepen superior relationships, advance diversity, equity and inclusion, and accomplish our mission with infectious enthusiasm and unbending integrity. Our Values Integrity, Leadership, Relationships, Enthusiasm ProAssurance is a U.S. based specialty property and casualty and workers' compensation insurance carrier. Our specialty property and casualty insurance products primarily include medical professional liability insurance and liability insurance for medical technology and life sciences risks. Our executive offices are located at 100 Brookwood Place, Birmingham, Alabama 35209 and our telephone number is (205) 877-4400. Our stock trades on the NYSE under the symbol “PRA.” Our website is www.proassurancegroup.com, and we maintain a dedicated Investor Relations section on that website (investor.proassurance.com) to provide resources for investors and others seeking to learn more about us. As part of our disclosure, through the Investor Relations section of our website, we provide access to our annual report on Form 10-K, our quarterly reports on Form 10-Q, our current reports on Form 8-K and all other public SEC filings as soon as reasonably practicable after the report is electronically filed with, or furnished to, the SEC. These SEC filings can be found on our website at investor.proassurance.com/SEC-Filings. The Investor Relations section of our website also includes information regarding stock trading by corporate insiders by providing access to SEC Forms 3, 4 and 5 when they are filed with the SEC. In addition to federal filings on our website, we make available other documents that provide important additional information about our financial condition and operations. Documents available on our website include the financial statements we file with state regulators (compiled under SAP as required by regulation), news releases that we issue and certain investor presentations. The Corporate Information section of our website provides copies of the charters for our governing committees and many of our governing policies. Printed copies of these documents may be obtained from our Investor Relations department, by email at [email protected], by mail at P.O. Box 590009, Birmingham, Alabama 35259-0009, or by telephone at (205) 776-3028 or (800) 282-6242. Our History We were incorporated in Delaware in 2001 as the successor to Medical Assurance, Inc, in conjunction with its merger with Professionals Group, Inc. ProAssurance has a history of growth through acquisitions; the most recent and significant of which was the acquisition of NORCAL Insurance Company on May 5, 2021. On March 19, 2025, we entered into an Agreement and Plan of Merger (the “Merger Agreement”) with The Doctors Company, a California-domiciled reciprocal inter-insurance exchange, and Jackson Acquisition Corporation, a Delaware corporation and a wholly owned subsidiary of The Doctors Company (“Merger Sub”), pursuant to which, on the terms and subject to the conditions set forth in the Merger Agreement, Merger Sub will merge with and into ProAssurance (the “Merger”). ProAssurance will continue as the surviving corporation in the Merger as a wholly owned subsidiary of The Doctors Company. The Board has approved the Merger Agreement and the transactions contemplated thereby, including the Merger. On June 24, 2025, ProAssurance held a special meeting of stockholders (the “ProAssurance Special Meeting”) at which holders of ProAssurance’s common stock approved each of the proposals voted on at the ProAssurance Special Meeting relating to the transactions contemplated by the Merger Agreement. On July 2, 2025, the U.S.…