Exhibit 99.1 FOR IMMEDIATE RELEASE: Pioneer Bancorp, Inc. Reports Second Quarter 2025 Results Net Income of $6.5 Million Albany, N.Y. – July 30, 2025 – Pioneer Bancorp, Inc. ("Pioneer") (NASDAQ: PBFS), a leading financial institution in New York's Capital Region, today reported the results for the three and six months ended June 30, 2025. Net income for the three months ended June 30, 2025 was$6.5 million, or $0.26 per basic and diluted share, as compared to$3.9 million, or $0.16 per basic and diluted sha ...