SCHEDULE 13D/A 0001953973 XXXXXXXX LIVE 3 Class A Common Stock ($0.10 par value) 09/04/2025 false 0000729580 077347201 Bel Fuse Inc.

300 Executive Drive Suite 300 West Orange NJ 07052

Christopher F. Bennett (610) 564-6801 30 Chatham Road P.O. Box 216 Short Hills NJ 07078 0001953973 N Christopher F. Bennett OO N X1 75950 0 75950 0 75950 N 3.59 IN The following constitutes Amendment No. 3 to Schedule 13D filed by the undersigned ("Amendment No. 3"). This Amendment No. 3 amends the Schedule 13D, as amended, as specifically set forth herein. Class A Common Stock ($0.10 par value) Bel Fuse Inc. 300 Executive Drive Suite 300 West Orange NJ 07052 The name of the person filing this statement on Schedule 13D (the "Reporting Person") is Christopher F. Bennett. The address of the Reporting Person is P.O. Box 216, Short Hills, New Jersey 07078. The Reporting Person's principal occupation is serving as a partner of Petrus Partners Ltd., a private vertically integrated real estate and real asset fund management, investment management, and operating company. During the last five years, the Reporting Person has not been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors). During the last five years, the Reporting Person has not been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws. The Reporting Person is a United States citizen. The Reporting Person has used personal funds (approximately $3,090,962) to purchase the Shares. The shares of Class A Common Stock held by the Reporting Person are held in margin accounts together with other securities. Such margin accounts may from time to time have debit balances. This Amendment No. 3 amends the Schedule 13D initially filed on November 10, 2022 and amended on March 3, 2023 and August 29, 2025. This Schedule 13D is filed to reflect the disposition of shares of Class A Common Stock by the Reporting Person and to reflect that the Reporting Person has ceased to be the beneficial owner of more than five percent of the Class A Common Stock of the issuer. The Reporting Person beneficially owns in the aggregate 75,950 shares of Class A Common Stock, which represents approximately 3.59% of the Company's outstanding shares of Class A Common Stock. The percentage ownership of shares of Common Stock set forth in this Statement is based on 2,115,263 shares of Common Stock issued and outstanding as of July 25, 2025 as reported in the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2025 filed with the SEC on July 31, 2025. The Reporting Person has the sole power to vote or to direct the voting of all such shares described in Item 5(a) above. The Reporting Person has the sole power to dispose or direct the disposition of all such shares described in Item 5(a) above. The Reporting Person does not have shared power to vote or to direct the vote of any such shares described in Item 5(a) above, and does not have shared power to dispose or direct the disposition of any such shares described in Item 5(a) above. Schedule 1 hereto sets forth all transactions in the Common Stock by any Reporting Person during the past sixty days. Except for the transactions set forth on Schedule 1, none of the Reporting Persons effected any transaction during the past sixty days. Not applicable. 9/4/2025 Other than described herein, there are no contracts, arrangements, understandings or relationships among the Reporting Person and any other person with respect to the securities of the Issuer. Christopher F. Bennett /s/ Christopher F. Bennett 09/05/2025