Exhibit 99.1 CONTACT Kathryn Bass / Brian Glaze Investor Relations (713) 625-8633 Stewart Reports Third Quarter 2025 Results HOUSTON, October 22, 2025 - Stewart Information Services Corporation (NYSE: STC) today reported net income attributable to Stewart of $44.3 million ($1.55 per diluted share) for the third quarter 2025, compared to net income attributable to Stewart of $30.1 million ($1.07 per diluted share) for the third quarter 2024. On an adjusted basis, net income for the third quarter 2025 was $46 ...