Bel Fuse (BELFB) HR executive sells 214 shares after 437-share award

Rhea-AI Filing Summary

BEL FUSE INC /NJ Global Head of People Suzanne Kozlovsky reported both an equity award and a small share sale. On March 15, 2026, she was granted 437 restricted shares of Class B Common Stock, vesting in stages through March 15, 2029. On March 16, 2026, she sold 214 Class B shares in an open-market transaction at $203.21 per share. After these transactions, she held 12,283 Class B shares directly and an estimated 496 Class A shares indirectly through a 401(k) plan.

Insider Trade Summary

Net Seller: 214 shares ($43,487)

Net Sell 3 txns

Insider Kozlovsky Suzanne

Role Global Head of People

Sold 214 shs ($43K)

Type	Security	Shares	Price	Value
Sale	Class B Common Stock	214	$203.21	$43K
Grant/Award	Class B Common Stock	437	$0.00	--
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class B Common Stock — 12,283 shares (Direct); Class A Common Stock — 496 shares (Indirect, by 401(k) plan)

Footnotes (1)

1. The number of shares held in the 401(k) plan is estimated. Ms. Kozlovsky was granted 437 restricted shares of Class B Common Stock on March 15, 2026. The restricted shares vest as follows: 146 shares vest as of March 15, 2027; 146 shares vest as of March 15, 2028; and 145 shares vest as of March 15, 2029.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Kozlovsky Suzanne

(Last) (First) (Middle)

C/O BEL FUSE INC.

300 EXECUTIVE DRIVE, SUITE 300

(Street)

WEST ORANGE NJ 07052

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
BEL FUSE INC /NJ [ BELFB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Global Head of People

3. Date of Earliest Transaction (Month/Day/Year)
03/15/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock								496(1)	I	by 401(k) plan
Class B Common Stock	03/15/2026		A		437(2)	A	$0	12,497	D
Class B Common Stock	03/16/2026		S		214	D	$203.21	12,283	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The number of shares held in the 401(k) plan is estimated.

2. Ms. Kozlovsky was granted 437 restricted shares of Class B Common Stock on March 15, 2026. The restricted shares vest as follows: 146 shares vest as of March 15, 2027; 146 shares vest as of March 15, 2028; and 145 shares vest as of March 15, 2029.

	/s/ Lynn Hutkin	03/17/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did Suzanne Kozlovsky report for BELFB?

Suzanne Kozlovsky reported two key transactions: a grant of 437 restricted Class B shares on March 15, 2026, and an open-market sale of 214 Class B shares at $203.21 per share on March 16, 2026, along with updated share holdings.

How many BELFB shares did Suzanne Kozlovsky sell and at what price?

Suzanne Kozlovsky sold 214 shares of Bel Fuse Class B Common Stock in an open-market transaction on March 16, 2026. The reported sale price was $203.21 per share, as disclosed in the Form 4 insider trading report.

What equity award did Suzanne Kozlovsky receive from BEL FUSE INC /NJ?

On March 15, 2026, Suzanne Kozlovsky received a grant of 437 restricted shares of Class B Common Stock. According to the disclosure, 146 shares vest on March 15, 2027, another 146 on March 15, 2028, and 145 on March 15, 2029.

What are Suzanne Kozlovsky’s BELFB share holdings after these transactions?

Following the reported transactions, Suzanne Kozlovsky directly held 12,283 shares of Bel Fuse Class B Common Stock. She also had an estimated 496 shares of Class A Common Stock indirectly through a 401(k) plan, based on the figures stated in the filing.

How are the 437 restricted BELFB shares scheduled to vest for Suzanne Kozlovsky?

The 437 restricted Class B shares granted to Suzanne Kozlovsky vest in three annual installments. The schedule is 146 shares vesting on March 15, 2027, 146 shares on March 15, 2028, and the remaining 145 shares on March 15, 2029.

Does Suzanne Kozlovsky hold any BEL FUSE Class A shares?

Yes. The Form 4 indicates Suzanne Kozlovsky indirectly holds 496 shares of Bel Fuse Class A Common Stock through a 401(k) plan. The filing notes that the number of shares held in the 401(k) plan is estimated rather than an exact count.