STOCK TITAN

Bel Fuse (BELFA) HR chief reports sale of 731 Class B shares

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Bel Fuse Inc. Global Head of People Suzanne Kozlovsky reported open-market sales of 731 shares of Class B common stock on June 1, 2026. The sales were executed in multiple transactions at reported prices between $266.98 and $274.91 per share, with several prices disclosed as weighted averages over narrower ranges. The filing also notes an estimated 492 shares of Class A common stock held indirectly through a 401(k) plan.

Positive

  • None.

Negative

  • None.
Insider Kozlovsky Suzanne
Role Global Head of People
Sold 731 shs ($198K)
Type Security Shares Price Value
Sale Class B Common Stock 33 $266.98 $9K
Sale Class B Common Stock 92 $269.68 $25K
Sale Class B Common Stock 310 $270.51 $84K
Sale Class B Common Stock 46 $271.56 $12K
Sale Class B Common Stock 214 $272.42 $58K
Sale Class B Common Stock 36 $274.91 $10K
holding Class A Common Stock -- -- --
Holdings After Transaction: Class B Common Stock — 12,250 shares (Direct, null); Class A Common Stock — 492 shares (Indirect, by 401(k) plan)
Footnotes (1)
  1. The number of shares held in the 401(k) plan is estimated. This price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $268.95 to $269.95, inclusive. The reporting person undertakes to provide to Bel Fuse Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (2) to this Form 4. This price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $270.01 to $270.89, inclusive. The reporting person undertakes to provide to Bel Fuse Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (3) to this Form 4. This price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $271.09 to $271.72, inclusive. The reporting person undertakes to provide to Bel Fuse Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (4) to this Form 4. This price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $272.335 to $272.78, inclusive. The reporting person undertakes to provide to Bel Fuse Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (5) to this Form 4.
Shares sold 731 shares Total Class B shares sold on June 1, 2026
Sale price (low) $266.98 per share Lowest reported transaction price for Class B sales
Sale price (high) $274.91 per share Highest reported transaction price for Class B sales
401(k) Class A holdings 492 shares Estimated Class A shares held via 401(k) plan
Sell transactions 6 entries Non-derivative Class B open-market sale transactions
Net share direction -731 shares Net buy/sell shares reported as net-sell
open-market sale financial
"transaction_action": "open-market sale""
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
weighted average price financial
"This price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
401(k) plan financial
"The number of shares held in the 401(k) plan is estimated."
A 401(k) plan is a workplace retirement account that lets employees set aside part of their pay into a tax-advantaged savings pot, often with employers adding matching contributions — like a workplace piggy bank for future income. It matters to investors because the amount people save and how employers fund these plans influence consumer spending, corporate payroll costs and the flow of money into financial markets, which can affect stock prices and company valuations.
non-derivative financial
"transaction_type": "non-derivative""
Form 4 regulatory
"within the range set forth in footnote (2) to this Form 4."
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
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SEC Form 4
FORM 4UNITED 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 NEW JERSEY 07052

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
BEL FUSE INC /NJ [ BELFB ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Global Head of People
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Class A Common Stock492(1)Iby 401(k) plan
Class B Common Stock06/01/2026S33D$266.9812,250D
Class B Common Stock06/01/2026S92D$269.68(2)12,158D
Class B Common Stock06/01/2026S310D$270.51(3)11,848D
Class B Common Stock06/01/2026S46D$271.56(4)11,802D
Class B Common Stock06/01/2026S214D$272.42(5)11,588D
Class B Common Stock06/01/2026S36D$274.9111,552D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. The number of shares held in the 401(k) plan is estimated.
2. This price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $268.95 to $269.95, inclusive. The reporting person undertakes to provide to Bel Fuse Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (2) to this Form 4.
3. This price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $270.01 to $270.89, inclusive. The reporting person undertakes to provide to Bel Fuse Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (3) to this Form 4.
4. This price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $271.09 to $271.72, inclusive. The reporting person undertakes to provide to Bel Fuse Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (4) to this Form 4.
5. This price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $272.335 to $272.78, inclusive. The reporting person undertakes to provide to Bel Fuse Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (5) to this Form 4.
/s/ Lynn Hutkin, as attorney-in-fact for Suzanne Kozlovsky06/03/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider activity did BELFA report for Suzanne Kozlovsky on this Form 4?

Suzanne Kozlovsky reported selling 731 shares of Bel Fuse Class B common stock in open-market transactions. The trades occurred on June 1, 2026, and were disclosed as multiple weighted-average price sales across several price ranges.

How many Bel Fuse (BELFA) shares did the insider sell and at what prices?

The insider sold 731 Class B shares in several trades at reported prices between $266.98 and $274.91 per share. Some prices are stated as weighted averages for transactions within narrower intraday ranges.

What role does Suzanne Kozlovsky hold at Bel Fuse (BELFA)?

Suzanne Kozlovsky serves as Bel Fuse’s Global Head of People, an executive officer role. This position focuses on human resources and talent management while also making her a reporting person for insider trading disclosures like this Form 4.

Were these Bel Fuse (BELFA) insider transactions open-market sales?

Yes. The Form 4 identifies the transactions as non-derivative Class B common stock sales with code "S," described as open-market or private transaction sales. There is no indication of option exercises, gifts, or tax-withholding dispositions in this filing.

Does the Bel Fuse (BELFA) insider hold shares through a retirement plan?

Yes. The filing reports an estimated 492 shares of Bel Fuse Class A common stock held indirectly through a 401(k) plan. This position is separate from the Class B shares sold in the reported open-market transactions.