Exhibit 99.1 FOR IMMEDIATE RELEASE: Orrstown Financial Services, Inc. Reports Third Quarter 2026 Results HARRISBURG, PA (October 20, 2026) -- Orrstown Financial Services, Inc. (the "Company") (NASDAQ: ORRF), the parent company of Orrstown Bank (the "Bank"), announced earnings for the three and nine months ended September 30, 2026. Net income totaled $22.8 million for the three months ended September 30, 2026, compared to net income of $21.2 million and $21.9 million for the three months ended June 30, 2026 ...