• SRB Corp, a 10% owner of Safety Insurance Group, sold 2,650 common shares on July 9.
• Sale priced at USD 76.51 per share.
• Beneficial ownership reported at 1,792,005 shares after the transaction.
• Filing also lists Plymouth Rock Co as a reporting 10% owner.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Safety Insurance Group Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0000904454-26-000403), on July 10, 2026, and is solely responsible for the information contained therein.