LGL Group Inc.

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers On September 30, 2026, the Board of Directors (the "Board") of The LGL Group, Inc. (the "Company") designated Christopher W. Bruns, the Company's Vice President and Controller, as the Company's principal accounting officer, effective October 1, 2026. Mr. Bruns, age 38, has more than 12 years of experience in accounting and finance. Since joining the Company in May 2026, he has served as Vice President and Controller. Prior to joining the Company, he served as Assistant Controller at Urban One, Inc., a media company, from 2024 to 2026 and as Senior Manager, Technical Accounting and SEC Reporting, at FTI Consulting, Inc., a business advisory firm, from 2019 to 2024. Mr. Bruns began his career in public accounting at Ernst & Young LLP and is a Certified Public Accountant. He earned a Bachelor of Business Administration in Accounting from Ohio University. In connection with Mr. Bruns designation as principal accounting officer, Linda M. Biles ceased serving as the Company's principal accounting officer, effective October 1, 2026. There are no arrangements or understandings between Mr. Bruns and any other person pursuant to which he was appointed to serve as an officer of the Company. Mr. Bruns has no family relationship with any director or executive officer of the Company, and he has no direct or indirect interest in any transaction required to be disclosed pursuant to Item 404(a) of Regulation S-K. As of the date of this Current Report on Form 8-K, no new compensatory arrangements have been entered into with Mr. Bruns, and no changes have been made to existing compensatory arrangements. If the Company enters into any new compensatory arrangements with Mr. Bruns, the material terms of such arrangements will be disclosed in a subsequent filing.