Kenneth Koon Keung Lai - 15 Mar 2026 Form 4 Insider Report for BEL FUSE INC /NJ (BELFB)

Reporting relationship: VP of Asia Operations
Issuer ticker: BELFB
Reported as of: 15 Mar 2026
Net transaction value: -$112,172
SEC form: 4
Accepted by SEC: 17 Mar 2026, 16:51:18 UTC
Prior SEC filing: 19 Nov 2025
Source filing: View source filing
Reporting owner signature: /s/ Lynn Hutkin

Key filing fact

Kenneth Koon Keung Lai filed Form 4 for BEL FUSE INC /NJ (BELFB) on 17 Mar 2026.

Key facts

This page summarizes Kenneth Koon Keung Lai's Form 4 filing for BEL FUSE INC /NJ (BELFB).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 17 Mar 2026, 16:51.

Change

Previous filing in this sequence was filed on 19 Nov 2025.
Current net transaction value: -$112,172.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001960567 Primary reporting owner

Lai Kenneth Koon Keung

Relationship: VP of Asia Operations
Address: C/O BEL FUSE INC., 300 EXECUTIVE DRIVE, SUITE 300, WEST ORANGE
Signature: /s/ Lynn Hutkin
Signature date: 17 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

BELFB transaction

Class B Common Stock

Award

Transaction value
Shares: +329
Change %: +4.2%
Price: $0.000000^*
Shares after: 8,084
Date: 15 Mar 2026
Ownership: Direct
Footnotes: F1

BELFB transaction

Class B Common Stock

Sale

Transaction value: $112,172
Shares: -552
Change %: -6.8%
Price: $203.21
Shares after: 7,532
Date: 16 Mar 2026
Ownership: Direct

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Mr. Lai was granted 329 restricted shares of Class B Common Stock on March 15, 2026. The restricted shares vest as follows: 110 shares vest as of March 15, 2027; 110 shares vest as of March 15, 2028; and 109 shares vest as of March 15, 2029.