X0306 4 2021-11-15 0 0000729580 BEL FUSE INC /NJ BELFB 0001007789 BERNSTEIN DANIEL C/O BEL FUSE INC 206 VAN VORST STREET JERSEY CITY NJ 07302 1 1 0 0 President and CEO Class B Common Stock 2021-11-15 4 A 0 12000 0.00 A 25075 D Class B Common Stock 2021-11-16 4 S 0 3000 14.03 D 22075 D Class B Common Stock 10909 I By 401(k) plan Class B Common Stock 4265 I By wife Class A Common Stock 376095 D Class A Common Stock 5380 I By 401(k) plan The number of shares held in the 401(k) Plan is estimated. Mr. Bernstein was granted 12,000 restricted shares of Class B Common Stock on November 15, 2021. The restricted shares vest as follows: 3,000 shares vest as of November 15, 2023; 3,000 shares vest as of November 15, 2024; 3,000 shares vest as of November 15, 2025; and 3,000 shares vest as of November 15, 2026. This Form 4 reflects an adjustment to the reporting person's holdings to exclude certain shares previously included in prior reports but not attributable to the reporting person for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, consisting of (i) 55,074 shares of Class A Common Stock owned by a trust in which Mr. Bernstein is a beneficiary but does not serve as trustee and has no voting or investment power with respect to the shares, and (ii) 59,052 shares of Class B Common Stock owned by a family limited liability company of which Mr. Bernstein is a minority member but does not serve as managing member and has no voting or investment power with respect to the shares. Exhibit List: Exhibit 24 - Power of Attorney /s/ Lloyd Jeglikowski, Attorney-in-Fact 2021-11-17