Shareholder Vote

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ________________ FORM 8-K ________________ CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2026 MSA SAFETY INCORPORATED (Exact name of registrant as specified in its charter) Pennsylvania 1-15579 46-4914539 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification Number) 1000 Cranberry Woods Drive Cranberry Township, Pennsylvania   16066-5207 (Address of principal executive offices)   (Zip Code) Registrant’s telephone number, including area code: 724 - 776-8600 Former name or former address, if changed since last report: N/A Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Common stock, no par value MSA New York Stock Exchange Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Item 5.07 Submission of Matters to a Vote of Security Holders. The annual meeting of shareholders of MSA Safety Incorporated was held on May 8, 2026. The following matters were acted upon: 1. Election of Directors William M. Lambert, Diane M. Pearse and Nishan J. Vartanian were elected to serve until the Annual Meeting in 2029, by the following votes: Nominee Votes For Votes Withheld Broker Non-Votes William M. Lambert 31,171,031 2,282,844 3,676,895 Diane M. Pearse 28,915,222 4,538,653 3,676,895 Nishan J. Vartanian 31,172,477 2,281,398 3,676,895 Continuing as directors, with terms expiring in 2027, are Steven C. Blanco, Sandra L. Phillips and Luca Savi. Continuing as directors with terms expiring in 2028, are Robert A. Bruggeworth, Gregory B. Jordan and William R. Sperry. 2. Selection of Independent Registered Public Accounting Firm Ernst & Young LLP was selected as the independent registered public accounting firm for the year ending December 31, 2026, by the following votes: Votes For Votes Against Abstentions 36,762,030 321,029 47,711 3. Advisory Vote to Approve Executive Compensation The results of the advisory vote to approve the executive compensation of the Company’s named executive officers were as follows: Votes For Votes Against Abstentions Broker Non-Votes 31,949,220 1,465,054 39,601 3,676,895 SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, MSA Safety Incorporated has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. MSA SAFETY INCORPORATED (Registrant) By /s/ Richard W. Roda Richard W. Roda Vice President, Secretary and Chief Legal Officer Date: May 8, 2026