Company Update

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 16, 2025 ( December 15, 2025 )     THE LGL GROUP, INC . (Exact Name of Registrant as Specified in Charter)       Delaware 001-00106 38-1799862 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)       2525 Shader Road , Orlando , FL 32804 (Address of Principal Executive Offices) (Zip Code)   ( 407 ) 298-2000 Registrant’s Telephone Number, Including Area Code   (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 Stock, par value $0.01   LGL   NYSE American Warrants to Purchase Common Stock, par value $0.01   LGL WS   NYSE American   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 8.01. Other Events   On December 15, 2025, The LGL Group, Inc. (the "Company") issued a press release announcing that it has extended the expiration date of the warrants to purchase shares of the Company's common stock, par value $0.01 per share (the "Warrants"). The Warrants were previously scheduled to expire on Tuesday December 16, 2025.   The extension of the expiration date of the Warrants was approved by the Company's Board of Directors. All other terms of the Warrants, including the exercise price of $4.75 per share, remain unchanged.   A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated by reference to this Item 8.01.   Item 9.01. Financial Statements and Exhibits     (d) Exhibits   Exhibit No. Description     99.1 Press Release of The LGL Group, Inc. dated December 15, 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 LGL GROUP, INC.   (Registrant)     Date:  December 16, 2025 By: /s/ Patrick Huvane     Name: Patrick Huvane     Title: Executive Vice President - Business Development