EX-99.2 8 d936202dex992.htm EX-99.2

Exhibit 99.2

SCAN TO VIEW MATERIALS & VOTE VOTE BY INTERNET—www.proxyvote.com or scan the QR Barcode above PACIFIC PREMIER BANCORP, INC. Before the Meeting – Go to www.proxyvote.com or scan the QR Barcode above ATTN: CORPORATE SECRETARY 17901 VON KARMAN AVE Use the Internet to transmit your voting instructions and for electronic delivery of SUITE 1200 information. Vote by 11:59 p.m. ET on 07/20/2025. Have your proxy card in hand when IRVINE, CA 92614 you access the web site and follow the instructions to obtain your records and to create an electronic voting instruction form. During the Meeting – Go to https://www.virtualshareholdermeeting.com/PPBI2025SM 1 You may attend the meeting via the Internet and vote during the meeting. Have the Investor Address Line 1 information that is printed in the box marked by the arrow available and follow the Investor Address Line 2 instructions. Investor Address Line 3 1 1 OF VOTE BY PHONE—1-800-690-6903 Investor Address Line 4 Use any touch-tone telephone to transmit your voting instructions. Vote by 11:59 p.m. ET Investor Address Line 5 on 07/20/2025. Have your proxy card in hand when you call and then follow the John Sample instructions. 1234 ANYWHERE STREET 2 VOTE BY MAIL ANY CITY, ON A1A 1A1 Mark, sign and date your proxy card and return it in the postage-paid envelope we have provided or return it to Vote Processing, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717. CONTROL # ’ NAME THE COMPANY NAME INC.—COMMON SHARES 123,456,789,012.12345 THE COMPANY NAME INC.—CLASS A 123,456,789,012.12345 THE COMPANY NAME INC.—CLASS B 123,456,789,012.12345 THE COMPANY NAME INC.—CLASS C 123,456,789,012.12345 THE COMPANY NAME INC.—CLASS D 123,456,789,012.12345 THE COMPANY NAME INC.—CLASS E 123,456,789,012.12345 THE COMPANY NAME INC.—CLASS F 123,456,789,012.12345 THE COMPANY NAME INC.—401 K 123,456,789,012.12345 PAGE 1 OF 2 x TO VOTE, MARK BLOCKS BELOW IN BLUE OR BLACK INK AS FOLLOWS: KEEP THIS PORTION FOR YOUR RECORDS DETACH AND RETURN THIS PORTION ONLY THIS PROXY CARD IS VALID ONLY WHEN SIGNED AND DATED. 2 0 The Board of Directors recommends you vote FOR proposals 1, 2 and 3. For Against Abstain 0000000000 1 Adoption of the Agreement and Plan of Merger, 0 0 0 dated as of April 23, 2025, by and among For Against Abstain  Pacific Premier Bancorp, Inc., a Delaware corporation (“Pacific Premier”), Columbia 3 Adjourn the Pacific Premier special meeting, if 0 0 0 Banking System, Inc., a Washington corporation necessary or appropriate, to solicit additional (“Columbia”) and Balboa Merger Sub, Inc., a proxies if there are not sufficient votes at Delaware corporation and wholly owned the time of the Pacific Premier special meeting subsidiary of Columbia (the “merger to adopt the merger agreement or to ensure that agreement”). any supplement or amendment to the accompanying joint proxy statement/prospectus is timely provided to holders of Pacific Premier common stock. 2 Approve, on an advisory (non-binding) basis, 0 0 0 the merger-related compensation payments that will or may be paid to the named executive officers of Pacific Premier in connection with NOTE: Such other business as may properly come the transactions contemplated by the merger before the meeting or any adjournment thereof. agreement. Investor Address Line 1 Investor Address Line 2 R1.0.0.2 Investor Address Line 3 Investor Address Line 4    Investor Address Line 5 1 Please sign exactly as your name(s) appear(s) hereon. When signing as _ John Sample attorney, executor, administrator, or other fiduciary, please give full title as such. Joint owners should each sign personally. All holders must 1234 ANYWHERE STREET sign. If a corporation or partnership, please sign in full corporate or ANY CITY, ON A1A 1A1 partnership name, by authorized officer. 0000680578 SHARES CUSIP # JOB # SEQUENCE # Signature [PLEASE SIGN WITHIN BOX] Date Signature (Joint Owners) Date

Important Notice Regarding the Availability of Proxy Materials for the Special Meeting: The Notice & Proxy Statement is/are available at www.proxyvote.com PACIFIC PREMIER BANCORP, INC. Special Meeting of Stockholders July 21, 2025 9:00 a.m. PT This proxy is solicited by the Board of Directors The stockholder(s) hereby appoint(s) Steven R. Gardner and Ronald Nicolas as proxies, each with the power to appoint their substitute, and hereby authorize(s) them to represent and to vote, as designated on the reverse side of this ballot, all of the shares of common stock of Pacific Premier Bancorp, Inc. that the stockholder(s) is/are entitled to vote at the Special Meeting of Stockholders to be held at 09:00 a.m. PT on July 21, 2025, to be held live via webcast at www.virtualshareholdermeeting.com/PPBI2025SM, and any adjournment or postponement thereof. This proxy, when properly executed, will be voted in the manner directed herein. If no such direction is made, this proxy will be voted in accordance with the Board of Directors’ recommendations. . 2 . 0 . 0 R1 _ 2 0000680578 Continued and to be signed on reverse side