Safety Insurance re-elects Farina and Meehan as directors; auditor ratified

3. Advisory Vote on Executive Compensation The stockholders of the Company approved, on a non-binding advisory basis, the executive compensation as disclosed in the Company’s Proxy Statement dated March 31, 2026. The voting results were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Votes For ​ Votes Against ​ Abstentions ​ Broker Non-Votes 11,491,433 ​ 458,546 ​ 21,407 ​ 1,680,893

1. Election of Directors John D. Farina and Thalia M. Meehan were elected as Class III directors of the Company to serve a three-year term. The voting results were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Votes For ​ Votes Withheld ​ Broker Non-Votes John D. Farina 11,767,003 ​ 204,383 ​ 1,680,893 Thalia M. Meehan 11,864,129 ​ 107,257 ​ 1,680,893

2. Ratification of Appointment of Independent Registered Public Accounting Firm The stockholders of the Company ratified the appointment of Deloitte & Touche LLP to serve as the Company’s independent registered public accounting firm for the year ending December 31, 2026. The voting results were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Votes For ​ Votes Against ​ Abstentions ​ Broker Non-Votes 13,618,768 ​ 21,425 ​ 12,086 ​ 0