Exhibit 99.1 Press Release FOR MORE INFORMATION, CONTACT: Theodore Stalick, SVP/CFO (323) 937-1060 www.mercuryinsurance.com For Release: November 4, 2025 Mercury General Corporation Announces Third Quarter Results and Declares Quarterly Dividend Los Angeles, California…Mercury General Corporation (NYSE: MCY) reported today for the third quarter of 2025: Consolidated Highlights | | Three Months Ended | | | | | | Nine Months Ended | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ...