NATURE OF OPERATIONS	3 Months Ended
Mar. 31, 2026
NATURE OF OPERATIONS
NATURE OF OPERATIONS	1.NATURE OF OPERATIONS Pioneer Bancorp, Inc. (the “Company”) is a mid-tier stock holding company whose wholly owned subsidiaries are Pioneer Bank, National Association (the “Bank”) and Pioneer Capital Markets, Inc. The Company provides diversified financial services through the Bank and its subsidiaries, with 23 offices in the Capital Region of New York State. The Company, through its subsidiaries, offers a broad array of deposit, lending, and other financial services to individuals, businesses, and municipalities. Pioneer Capital Markets, Inc., is a Financial Industry Regulatory Authority (“FINRA”) registered broker-dealer focused on municipal bond trading and commenced operations on January 2, 2026. The interim financial data as of March 31, 2026 and for the three months ended March 31, 2026 and 2025, respectively, is unaudited and reflects all normal recurring adjustments that are, in the opinion of management, necessary for a fair presentation of the results for the interim periods presented in conformance with accounting principles generally accepted in the United States of America (“GAAP”). The results of operations for the three months ended March 31, 2026 are not necessarily indicative of the results to be achieved for the remainder of fiscal 2026 or any other period. These unaudited interim consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K, for the year ended December 31, 2025.

NATURE OF OPERATIONS

3 Months Ended

Mar. 31, 2026

1.NATURE OF OPERATIONS

Pioneer Bancorp, Inc. (the “Company”) is a mid-tier stock holding company whose wholly owned subsidiaries are Pioneer Bank, National Association (the “Bank”) and Pioneer Capital Markets, Inc.

The Company provides diversified financial services through the Bank and its subsidiaries, with 23 offices in the Capital Region of New York State. The Company, through its subsidiaries, offers a broad array of deposit, lending, and other financial services to individuals, businesses, and municipalities. Pioneer Capital Markets, Inc., is a Financial Industry Regulatory Authority (“FINRA”) registered broker-dealer focused on municipal bond trading and commenced operations on January 2, 2026.

The interim financial data as of March 31, 2026 and for the three months ended March 31, 2026 and 2025, respectively, is unaudited and reflects all normal recurring adjustments that are, in the opinion of management, necessary for a fair presentation of the results for the interim periods presented in conformance with accounting principles generally accepted in the United States of America (“GAAP”). The results of operations for the three months ended March 31, 2026 are not necessarily indicative of the results to be achieved for the remainder of fiscal 2026 or any other period.

These unaudited interim consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K, for the year ended December 31, 2025.