Company Update

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549   FORM 8-K/A (Amendment No. 1)    CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934   Date of Report (Date of earliest event reported) March 9, 2026   STURM, RUGER & COMPANY, INC. (Exact Name of Registrant as Specified in its Charter)   Delaware (State or Other Jurisdiction of Incorporation) 001-10435 (Commission File Number) 06-0633559 (IRS Employer Identification Number)   One Lacey Place , Southport , Connecticut 06890 (Address of Principal Executive Offices) (Zip Code)   (203) 259-7843 Registrant’s telephone number, including area code   N/A (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 ( see General Instruction A.2. below): ☐ 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 RGR New York Stock Exchange Common Stock Purchase Rights N/A 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. ¨ 1       Explanatory Note   This Amendment No. 1 to the Current Report on Form 8-K (“Amendment No. 1”) amends Items 8.01 and 9.01 of the Current Report on Form 8-K filed by Sturm, Ruger & Company, Inc. (the “Company”) on March 9, 2026. The sole purpose of this Amendment No. 1 is to include a corrected copy of the press release that was issued by the Company in response to public statements made about the Company by Beretta Holding S.A. in connection with its nomination of director candidates for the Company’s 2026 annual meeting of stockholders.   Item 8.01 Other Events   On March 9, 2026, Sturm, Ruger & Company, Inc. (the “Company”) issued a press release in response to public statements made about the Company by Beretta Holding S.A. in connection with its nomination of director candidates for the Company’s 2026 annual meeting of stockholders.   A copy of the Company’s press release is filed as Exhibit 99.1 to this Current Report on Form 8-K and incorporated herein by reference.   Item 9.01 Financial Statements and Exhibits   Exhibit No . Description     99.1 Press release issued March 9, 2026.   2     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.        STURM, RUGER & COMPANY, INC.                                           By: /S/ THOMAS A. DINEEN     Name: Thomas A. Dineen     Title: Principal Financial Officer,        Principal Accounting Officer,        Senior Vice President, Treasurer and       Chief Financial Officer     Dated: March 9, 2026     3