DEFA14A

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities

Exchange Act of 1934 (Amendment No. )


Filed by the Registrant	☒		Filed by a Party other than the Registrant	☐

Check the appropriate box:

☐ Preliminary Proxy Statement

☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

☐ Definitive Proxy Statement

☒ Definitive Additional Materials

☐ Soliciting Material Pursuant to §240.14a-12

Badger Meter, Inc.

(Name of registrant as specified in its charter)

(Name of person(s) filing proxy statement, if other than the registrant)

Payment of Filing Fee (Check all boxes that apply):

☒ No fee required.

☐ Fee paid previously with preliminary materials.

☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

Your Vote Counts! BADGER METER, INC. 2026 Annual Meeting Vote by April 23, 2026 11:59 PM ET BADGER METER, INC. ATTN: CORPORATE SECRETARY 4545 W. BROWN DEER RD. MILWAUKEE, WI 53223 V84150-P45441 You invested in BADGER METER, 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 shareholder meeting to be held on April 24, 2026. Get informed before you vote View the Notice and Proxy Statement and 10K Wrap online OR you can receive a free paper or email copy of the material(s) by requesting prior to April 10, 2026. If you would like to request a copy of the material(s) for this and/or future shareholder 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. For complete information and to vote, visit www.ProxyVote.com Control # Smartphone users Point your camera here and vote without entering a control number Vote in Person at the Meeting* April 24, 2026 8:30 a.m. local time 4545 West Brown Deer Road Milwaukee, Wisconsin 53223 *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.

Vote at www.ProxyVote.com THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming shareholder meeting. Please follow the instructions on the reverse side to vote these important matters. Board Voting Items Recommends 1. Election of Directors. Nominees: 01) Todd A. Adams 06) James W. McGill 02) Kenneth C. Bockhorst 07) Tessa M. Myers 03) Henry F. Brooks 08) James F. Stern 04) Melanie K. Cook 09) Glen E. Tellock 05) Xia Liu For 2. ADVISORY VOTE TO APPROVE COMPENSATION OF OUR NAMED EXECUTIVE OFFICERS. For 3. RATIFICATION OF THE APPOINTMENT OF ERNST & YOUNG LLP AS INDEPENDENT REGISTERED PUBLIC ACCOUNTANTS FOR 2026. For NOTE: Such other business as may properly come before the meeting or any adjournment thereof. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings”. V84151-P45441

SEC Form DEFA14A filed by Badger Meter Inc.