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: May 14, 2026 (Date of earliest event reported)     GENCOR INDUSTRIES, INC. (Exact name of registrant as specified in its charter)       Delaware   001-11703   59-0933147 (State or other jurisdiction of incorporation)   (Commission File Number)   (IRS Employer Identification No.) 5201 North Orange Blossom Trail , Orlando , Florida 32810 (Address of principal executive offices) (Zip Code) (407) 290-6000 (Registrant’s telephone number, including area code)     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 ($.10 Par Value)   GENC   NYSE American LLC 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 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers On May 14, 2026, Eric Mellen, who serves as Chief Financial Officer and Treasurer of Gencor Industries, Inc. (the “Company”), provided notice of his decision to retire effective June 10, 2026. The Company has begun a search to consider candidates for the Chief Financial Officer role.   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.       GENCOR INDUSTRIES, INC. May 20, 2026     By:   /s/ Marc G. Elliott       Marc G. Elliott, President and Chairman of the Board