PIONEER BANCORP, INC. FOLD HERE • DO NOT SEPARATE • INSERT IN ENVELOPE PROVIDED Signature________________________________ Signature, if held jointly___________________________________ Date__________, 2022. Note: Please sign exactly as name appears hereon. When shares are held by joint owners, both should sign. When signing as attorney, executor, administrator, trustee, guardian, or corporate officer, please give title as such. Please mark your votes like this X CONTROL NUMBER 1. Election of Directors (1) Eileen C. Bagnoli (2) Madeline Taylor 2. Ratification of the appointment of Bonadio & Co., LLP as the independent registered public accounting firm for the year ending June 30, 2023. (Instruction: To withhold authority to vote for any individual nominee, strike a line through that nominee’s name in the list above) FOR all FOR AGAINST ABSTAIN Nominees listed to the left WITHHOLD AUTHORITY to vote (except as marked to the contrary for all nominees listed to the left) PROXY THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR” ELECTING THE TWO NOMINEES TO THE BOARD OF DIRECTORS AND “FOR” PROPOSAL 2. PLEASE DO NOT RETURN THE PROXY CARD IF YOU ARE VOTING ELECTRONICALLY. INTERNET www.cstproxyvote.com Use the Internet to vote your proxy. Have your proxy card available when you access the above website. Follow the prompts to vote your shares. MOBILE VOTING On your Smartphone/Tablet, open the QR Reader and scan the below image. Once the voting site is displayed, enter your Control Number from the proxy card and vote your shares. MAIL – Mark, sign and date your proxy card and return it in the postage-paid envelope provided. Your Mobile or Internet vote authorizes the named proxies to vote your shares in the same manner as if you marked, signed and returned your proxy card. Votes submitted electronically over the Internet must be received by 11:59 p.m., Local Time, on November 14, 2022. YOUR VOTE IS IMPORTANT. PLEASE VOTE TODAY. IMMEDIATE - 24 Hours a Day, 7 Days a Week or by Mail Vote by Internet, Smartphone or Tablet - QUICK EASY This Proxy is Solicited On Behalf Of The Board Of Directors |