Executive Change

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) December 21, 2023   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 NYSE   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       Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.   On December 21, 2023, Sturm, Ruger & Company, Inc. (the “Company”) entered into a separation agreement (the “Sullivan Agreement”) with Thomas P. Sullivan (“Sullivan”), Senior Vice President of Strategy and Development, whose employment with the Company will end on December 31, 2023.   The Sullivan Agreement provides for (i) Mr. Sullivan’s employment with the Company to end on December 31, 2023, (ii) the Company to pay Mr. Sullivan at the rate of $400,000 per annum from January 1, 2024 through June 30, 2025 (the “Separation Period”), (iii) the continued vesting of Mr. Sullivan’s restricted stock unit awards during the Separation Period, and (iv) a prohibition against Mr. Sullivan engaging in certain activities that compete or interfere with the Company from January 1, 2024 through June 30, 2025.   The foregoing description of the Sullivan Agreement is qualified in its entirety by reference to the complete terms and conditions of the Sullivan Agreement, which are attached 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 Separation Agreement, dated as of December 21, 2023 by and between Sturm, Ruger, & Co., Inc. and Thomas P. Sullivan.     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: December 22, 2023   2