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Your Vote Counts! Vote in Person at the Meeting* April 23, 2026 4:00 p.m. Central Time *Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares. Smartphone users Point your camera here and vote without entering a control number For complete information and to vote, visit www.ProxyVote.com Control # V82971-P41830 You invested in WEST BANCORPORATION, INC. and it’s time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy materials for the stockholder meeting to be held on April 23, 2026. Get informed before you vote View the Notice of Meeting, Proxy Statement, Proxy Card, Annual Report and Form 10-K online OR you can receive a free paper or email copy of the material(s) by requesting prior to April 9, 2026. If you would like to request a copy of the material(s) for this and/or future stockholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. WEST BANCORPORATION, INC. 3330 WESTOWN PARKWAY WEST DES MOINES, IA 50266 WEST BANCORPORATION, INC. 2026 Annual Meeting Vote by April 22, 2026 11:59 PM ET. For shares held in a Plan, vote by April 20, 2026 11:59 PM ET. West Bancorporation, Inc. 3330 Westown Parkway West Des Moines, Iowa 50266
THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters. Vote at www.ProxyVote.com Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings”. V82972-P41830 Voting Items Board Recommends 1. Election of Directors Nominees: 1a. Lisa J. Elming For 1b. Steven K. Gaer For 1c. Douglas R. Gulling For 1d. Sean P. McMurray For 1e. David D. Nelson For 1f. Rosemary Parson For 1g. John K. Sorensen For 1h. Therese M. Vaughan For 2. To approve, on a non-binding basis, the 2025 compensation of the named executive officers disclosed in the proxy statement. For 3. To ratify the appointment of RSM US LLP as the Company’s independent registered public accounting firm for 2026. For Such other business as may properly come before the meeting or any adjournment thereof.