Results of Operations

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): October 24, 2025     The Gorman-Rupp Company (Exact name of Registrant as Specified in Its Charter)     Ohio 1-6747 34-0253990 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)           600 South Airport Road   Mansfield , Ohio   44903 (Address of Principal Executive Offices)   (Zip Code)   Registrant’s Telephone Number, Including Area Code: (419) 755-1011     (Former Name or Former Address, if Changed Since Last Report)   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 Shares, without par value   GRC   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 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter). 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 2.02 Results of Operations and Financial Condition. On October 24, 2025, The Gorman-Rupp Company (the “Company”) issued a news release announcing its financial results for the third quarter ended September 30, 2025. The news release is included as Exhibit 99 and is being furnished, not filed, with this Current Report on Form 8-K. Item 9.01 Financial Statements and Exhibits. (d) Exhibits Exhibit         (99)   News Release dated October 24, 2025     (104)   Cover Page Interactive Data File (embedded within the Inline XBRL document)   SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.       THE GORMAN-RUPP COMPANY         Date: October 24, 2025 By: /s/Brigette A. Burnell       Brigette A. Burnell Executive Vice President, General Counsel and Corporate Secretary