MESA LABORATORIES INC /CO/

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

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

MESA LABORATORIES, 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):

NOTICE OF ANNUAL MEETING OF SHAREHOLDERS AND PROXY STATEMENT TO THE SHAREHOLDERS OF MESA LABORATORIES, INC.: The 2026 Annual Meeting of Shareholders (the “Annual Meeting”) of Mesa Laboratories, Inc. (“we,” “our,” the “Company,” or “Mesa”) will be held on Tuesday, September 8, 2026, at 12:00 p.m. Mountain Time at our corporate headquarters at 12100 West Sixth Avenue, Lakewood, Colorado 80228. As a shareholder of Mesa Laboratories, Inc. common stock at the close of business on July 10, 2026 (the “Record Date”), you are invited to participate in the Annual Meeting and any postponements or adjournments thereof. You are entitled and requested to vote on the proposals described in the accompanying proxy statement (the "Proxy Statement"). Items of Business Include: 1. The election of the seven director nominees identified in the Proxy Statement for a term of one year (Proposal 1); 2. The ratification of the selection by our Audit Committee of Baker Tilly US, LLP to serve as our independent registered public accounting firm for the fiscal year ending March 31, 2027 (Proposal 2); 3. An advisory vote on executive compensation (Proposal 3); 4. The transaction of such other business as may be properly brought before the Annual Meeting or any adjournment or postponement thereof. Who Can Vote Only shareholders of record of Mesa common stock as of the Record Date will be entitled to notice of and to vote at the Annual Meeting and any postponements or adjournments thereof. At the close of business on the Record Date, there were 5,595,869 shares of common stock outstanding. Each share of common stock entitles the shareholder of record to cast one vote on each proposal submitted for voting at the Annual Meeting. It is important that your shares be represented and voted at the Annual Meeting. Whether or not you plan to attend the Annual Meeting in person, please complete and return the enclosed proxy card in the envelope provided or vote by internet or telephone pursuant to instructions provided with the proxy card. How to Vote Please vote your shares by signing and returning your proxy card using telephone or internet voting. This will ensure that your shares will be voted whether or not you attend the Annual Meeting. If you are a shareholder of record, you may attend the Annual Meeting and vote in person even if you have previously granted a proxy. Availability of Materials We have elected to provide access to our proxy materials over the internet under the Securities and Exchange Commission’s (“SEC”) “notice and access” rules, which we believe results in lower costs and a positive environmental impact due to reduced quantities of materials that will be printed and mailed to shareholders. The Proxy Statement, including the enclosed proxy card, and our Annual Report on Form 10-K (the “2026 Annual Report”) for the fiscal year ended March 31, 2026 (“fiscal year 2026”) are available to view at www.edocumentview.com/MLAB or www.mesalabs.com. We intend to mail a notice regarding the internet availability of proxy materials (the “Notice of Internet Availability”) to our shareholders on or about July 22, 2026.

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As a shareholder of Mesa as of the Record Date, you are invited to participate in the Annual Meeting, and are entitled and requested to vote on the proposals described in the Proxy Statement. The Notice of Internet Availability instructs you how to submit your proxy or voting instructions form through the Internet. If you would like to receive a paper copy of our proxy materials, the Notice of Internet Availability also explains how to request a paper copy of those materials, including a proxy card that provides instructions on how to submit your proxy by mail or telephone. By Order of the Board of Directors, /s/ Siddhartha Kadia, Ph.D. July 22, 2026 Siddhartha Kadia President and Chief Executive Officer

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To Our Fellow Shareholders, On behalf of the Mesa Laboratories, Inc. Board of Directors, I am pleased to share an update on Mesa's progress since our last annual meeting and our focus for the years ahead. In fiscal year 2026, Mesa delivered solid financial performance while continuing to execute on our long-term strategy and fulfill our mission of Protecting the Vulnerable®. We achieved continued growth in revenues, organic revenues, and adjusted operating income, reflecting our emphasis on creating long-term shareholder value. Across our four divisions, we remain focused on operational discipline, commercial execution, and aligning our resources toward our most attractive opportunities. While certain portions of our business delivered strong results in fiscal 2026, others did not achieve their full potential, and improving consistency across Mesa's portfolio remains a key priority. After serving as President and Chief Executive Officer since 2017, Gary Owens stepped down from his role in April 2026. On behalf of the Board, we thank Gary for his leadership and for the contributions he made to Mesa, including helping to expand Mesa's portfolio, addressable markets and scale through a period of significant growth. Following a thorough search process, we welcomed Dr. Siddhartha Kadia as Mesa’s new President and Chief Executive Officer. In his first months at Mesa, Dr. Kadia has engaged closely with our teams and met with customers across our global operations, helping him develop an early understanding of our businesses, markets, and opportunities. He has quickly established a clear focus on strengthening core organic growth, enhancing operational discipline, and aligning employee incentives with long-term shareholder value. I am encouraged by his early perspectives on Mesa and its opportunities, along with the energy he has brought to the organization. Engagement with our shareholders remains a cornerstone of our governance philosophy. Over the past year, the Board and Management held positive discussions with a significant portion of our shareholder base on a variety of topics, including succession planning, governance practices, compensation plan design, and environmental and social practices. Feedback from these conversations directly influences our decisions and supports our efforts to meet shareholder expectations. On behalf of the Board, thank you for your continued support. With a strong foundation in place and a continued focus on execution, we are confident in our ability to build on our progress and deliver sustainable, long-term shareholder value in our next chapter. Sincerely, /s/ John Sullivan, Ph.D. John Sullivan Chairperson of the Board of Directors

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