Form 8-K

8-K — BEL FUSE INC /NJ

Accession: 0001437749-26-013888

Filed: 2026-04-29

Period: 2026-04-29

CIK: 0000729580

SIC: 3677 (ELECTRONIC COILS, TRANSFORMERS & OTHER INDUCTORS)

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — belfa20260302_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (ex_927642.htm)

GRAPHIC (bel_logo.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K — FORM 8-K

8-K (Primary)

Filename: belfa20260302_8k.htm · Sequence: 1

belfa20260302_8k.htm

false

0000729580

2026-04-29

0000729580

belfa:ClassACommonStockCustomMember

2026-04-29

0000729580

belfa:ClassBCommonStockCustomMember

2026-04-29

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of report (Date of earliest event reported): April 29, 2026

BELFUSE INC /NJ

BEL FUSE INC.

(Exact Name of Registrant as Specified in its Charter)

New Jersey

000-11676

22-1463699

(State of incorporation)

(Commission File Number)

(I.R.S. Employer Identification No.)

300 Executive Drive, Suite 300, West Orange, New Jersey

07052

(Address of principal executive offices)

(Zip Code)

Registrant's telephone number, including area code: (201) 432-0463

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class

Trading Symbol

Name of Exchange on Which Registered

Class A Common Stock ($0.10 par value)

BELFA

Nasdaq Global Select Market

Class B Common Stock ($0.10 par value)

BELFB

Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02. Results of Operations and Financial Condition.

On April 29, 2026, Bel Fuse Inc. ("Bel" or the "Company") issued a press release regarding results for the three months ended March 31, 2026. A copy of this press release is being furnished as Exhibit 99.1 to this Current Report on Form 8-K.

In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed "filed" for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

99.1

Press Release of Bel Fuse Inc. dated April 29 2026, related to the financial results of the Company for the three months ended March 31, 2026, furnished hereto.

104

Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: April 29, 2026

BEL FUSE INC.

(Registrant)

By:

/s/ Farouq Tuweiq

Farouq Tuweiq

President and Chief Executive Officer

EX-99.1 — EXHIBIT 99.1

EX-99.1

Filename: ex_927642.htm · Sequence: 2

ex_927642.htm

Exhibit 99.1

FOR IMMEDIATE RELEASE

Bel Fuse Inc.

300 Executive Drive

Suite 300

West Orange, NJ 07052

www.belfuse.com

tel 201.432.0463

Bel Reports First Quarter 2026 Results

Provides Q2-26 Sales and Gross Margin Guidance

WEST ORANGE, NJ, Wednesday, April 29, 2026 -- Bel Fuse Inc. (Nasdaq: BELFA and BELFB) today announced preliminary financial results for the first quarter of 2026.

First Quarter 2026 Highlights

•

Net sales of $178.5 million compared to $152.2 million in Q1-25. Up 17.2% from Q1-25

•

Gross profit margin of 39.0%, up from 38.6% in Q1-25

•

GAAP net earnings attributable to Bel shareholders of $11.4 million in Q1-26, compared to net earnings of $17.9 million in Q1-25. Non-GAAP net earnings attributable to Bel shareholders of $22.8 million in Q1-26, versus $16.8 million in Q1-25

•

Adjusted EBITDA of $34.5 million (19.3% of sales), compared to $30.9 million (20.3% of sales) in Q1-25

•

Closed on acquisition of dataMate in March 2026

•

Realigned business units to enhance go-to-market strategy and expand product offerings to all customers

Farouq Tuweiq, President and Chief Executive Officer, said, “We believe Bel delivered a strong start to the year with year-over-year sales growth and solid profitability, driven by broad-based momentum, favorable mix, and disciplined execution.

“During the first quarter, we completed a business unit realignment to better align with how customers buy — enabling greater customer intimacy, faster decision-making, and a more coordinated approach to delivering our full portfolio. We expect that this will position us to bring more of Bel to each customer through integrated selling and tighter alignment across engineering, operations, and commercial teams.

“We are also seeing the benefits of our organic growth initiatives. In our Aerospace Defense & Rugged Solutions business, two new defense design contracts in Europe are progressing through final certification and on track for completion in the second quarter, as well as our first bundled Cinch and Enercon agreement on a new U.S. design. Within our Industrial Technology & Data Solutions segment, demand remains healthy across networking and data infrastructure, with improving momentum in datacenter connectivity and high-performance compute tied to AI-driven investment, supporting opportunities in power conversion, protection, and high-speed interconnect. We also welcomed dataMate, acquired in March, which adds new customers, differentiated technology, and strong talent as we expand our data solutions capabilities.

“Looking ahead, we expect to have a strong second quarter, guiding sales of $195 million to $215 million with gross margin of 38%-40%, supported by robust bookings and higher demand from our defense, commercial air, space, and data solutions customers,” concluded Mr. Tuweiq.

Conference Call

Bel has scheduled a conference call for 8:30 a.m. ET on Thursday, April 30, 2026 to discuss these results. To participate in the conference call, investors should dial 877-407-0784, or 201-689-8560 if dialing internationally. The presentation will additionally be broadcast live over the Internet and will be available at https://ir.belfuse.com/events-and-presentations. The webcast will be available via replay for a period of at least 30 days at this same Internet address. For those unable to access the live call, a telephone replay will be available at 844-512-2921, or 412-317-6671 if dialing internationally, using access code 13759907 after 12:30 pm ET, also for 30 days.

About Bel

Bel (www.belfuse.com) designs, manufactures, and markets critical electronic components, systems and solutions for customers in aerospace, defense, industrial, and data-driven markets. Understanding that our customers face increasingly complex technical challenges, Bel delivers a comprehensive portfolio of solutions including power systems, high-reliability connectors and cable assemblies, circuit protection, and networking products that enable Original Equipment Manufacturers (OEMs) to bring their innovations to market. Bel partners closely with customers to deliver both customized and standard solutions tailored to their specific applications and performance requirements. With manufacturing facilities and technical support teams worldwide, Bel serves as a strategic partner to customers who require proven reliability in demanding end markets.

Company Contact:

Lynn Hutkin

Chief Financial Officer

ir@belf.com

Investor Contact:

Three Part Advisors

Jean Marie Young, Managing Director or Steven Hooser, Partner

631-418-4339

jyoung@threepa.com; shooser@threepa.com

Cautionary Language Concerning Forward-Looking Statements

This press release contains “forward-looking statements” within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, including but not limited to, our guidance for the second quarter of 2026; our statements regarding our expectations for future periods generally including anticipated financial performance, projections and trends for the remainder of the 2026 year ahead and other future periods; our statements regarding future events, performance, plans, intentions, beliefs, expectations and estimates, including statements regarding matters such as trends and expectations as to our sales, and gross margin, and as to our products, product groups, customers, and end markets; statements about demand among certain categories of customers or end markets, recovery in networking and distribution channels, and views on the effects on the Company’s overall future performance; statements about additions to the leadership team and expectations regarding further alignment of the organization with customer needs and industry trends; statements about growth strategy and growth initiatives, teamwork, exploration of new opportunities, and the Company’s evolution and business realignment; and statements regarding our expectations and beliefs regarding trends in the Company's business and industry and the markets in which Bel operates, and about broader market trends and the macroeconomic environment generally, and other statements regarding the Company's positioning, its strategies, future progress, investments, plans, targets, goals, and other focuses and initiatives, and the expected timing and potential benefits thereof. These forward-looking statements are made as of the date of this release and are based on current expectations, estimates, forecasts and projections as well as the beliefs and assumptions of management. Words such as “expect,” “anticipate,” “should,” “believe,” “hope,” “target,” “project,” “forecast,” “outlook,” “goals,” “estimate,” “potential,” “predict,” “may,” “will,” “might,” “could,” “intend,” variations of these terms or the negative of these terms and similar expressions are intended to identify these forward-looking statements. Forward-looking statements are subject to a number of risks and uncertainties, many of which involve factors or circumstances that are beyond Bel’s control. Bel’s actual results could differ materially from those stated or implied in our forward-looking statements (including without limitation any of Bel’s projections) due to a number of factors, including but not limited to, difficulties associated with integrating previously acquired companies, including any unanticipated difficulties, or unexpected or higher than anticipated expenditures, relating to Bel's November 2024 acquisition of Enercon, and including, without limitation, the risk that Bel is unable to integrate the Enercon business successfully or difficulties that result in the failure to realize the expected benefits and synergies within the expected time period (if at all); the possibility that the Bel’s intended acquisition of the remaining 20% stake in Enercon is not completed in accordance with the shareholders agreement as contemplated for any reason, and any resulting disruptions to Bel’s business and its currently 80% owned Enercon subsidiary as a result thereof; trends in demand which can affect Bel's products and results, including that demand in Enercon’s end markets can be cyclical, impacting the demand for Enercon’s products, which could be materially adversely affected by reductions in defense spending; the market concerns facing Bel's customers, and risks for the Company’s business in the event of the loss of certain substantial customers; the continuing viability of sectors that rely on Bel's products; the effects of business and economic conditions, and challenges impacting the macroeconomic environment generally and/or Bel's industry in particular; the effects of rising energy and other input costs, and cost changes generally, including the potential impact of inflationary pressures; capacity and supply constraints or difficulties, including supply chain constraints or other challenges; the impact of public health crises; difficulties associated with the availability of labor, and the risks of any labor unrest or labor shortages; risks associated with Bel's international operations, including Bel's substantial manufacturing operations in China, and following Bel’s November 2024 acquisition of Enercon , risks associated with operations in Israel, which may be adversely affected by political or economic instability, military activity (including the ongoing Iran war), major hostilities or acts of terrorism in the region; risks associated with restructuring programs or other strategic initiatives, including any difficulties in implementation or realization of the expected benefits or cost savings; product development, commercialization or technological difficulties; the regulatory and trade environment including the potential effects of the imposition or modification of new or increased tariffs either by the U.S. government on foreign imports or by a foreign government on U.S. exports related to the countries in which Bel transacts business and trade restrictions that may impact Bel, its customers and/or its suppliers, and risks associated with the evolving trade environment and changes in trade agreements, and general uncertainty about future changes in trade and tariff policy and the associated impacts of those changes; risks associated with fluctuations in foreign currency exchange rates and interest rates; uncertainties associated with legal proceedings; the market's acceptance of the Company's new products and competitive responses to those new products; the impact of changes to U.S. and applicable foreign legal and regulatory requirements, including tax laws; and the risks detailed in Bel’s most recent Annual Report on Form 10-K for the fiscal year ended December 31, 2025 and in subsequent reports filed by Bel with the Securities and Exchange Commission (the “SEC”), as well as other documents that may be filed by Bel from time to time with the SEC. In light of the risks and uncertainties impacting Bel's business, there can be no assurance that any forward-looking statement will in fact prove to be correct. Past performance is not necessarily indicative of future results. The forward-looking statements included in this press release represent Bel’s views as of the date of this press release. Bel anticipates that subsequent events and developments will cause its views to change. Bel undertakes no intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. These forward-looking statements should not be relied upon as representing Bel’s views as of any date subsequent to the date of this press release.

Non-GAAP Financial Measures

The Non-GAAP financial measures identified in this press release as well as in the supplementary information to this press release (Non-GAAP net earnings attributable to Bel shareholders, Non-GAAP EPS, Non-GAAP Operating Income and Adjusted EBITDA) are not measures of performance under accounting principles generally accepted in the United States of America ("GAAP"). These measures should not be considered a substitute for, and the reader should also consider, income from operations, net earnings, earnings per share and other measures of performance as defined by GAAP as indicators of our performance or profitability. Our non-GAAP measures may not be comparable to other similarly-titled captions of other companies due to differences in the method of calculation. We present results adjusted to exclude the effects of certain unusual or special items and their related tax impact that would otherwise be included under U.S. GAAP, to aid in comparisons with other periods. We believe that these non-GAAP measures of financial results provide useful information to management and investors regarding certain financial and business trends relating to our financial condition and results of operations. We use these non-GAAP measures to compare the Company’s performance to that of prior periods for trend analysis and for budgeting and planning purposes. We also believe that the use of these non-GAAP financial measures provides an additional tool for investors to use in evaluating ongoing operating results and trends and in comparing the Company’s financial measures with other similarly situated companies in our industry, many of which present similar non-GAAP financial measures to investors. Non-GAAP financial measures, such as Non-GAAP net earnings attributable to Bel shareholders, Non-GAAP EPS, Non-GAAP Operating Income and Adjusted EBITDA, adjust corresponding GAAP measures for provision for income taxes, other income/expense, net, interest income/expense, and depreciation and amortization, and also exclude, where applicable for the covered period presented in the financial statements, certain unusual or special items identified by management such as restructuring charges (credits), gains/losses on sales of businesses and properties, acquisition related costs, earnout adjustments, impairment charges, noncontrolling interest ("NCI") adjustments from fair value to redemption value, and certain litigation costs. In addition, in the fourth quarter of 2024, we modified our presentation of Non-GAAP financial measures, including revising our definitions of Adjusted EBITDA and Non-GAAP EPS, to additionally exclude from these Non-GAAP measures (i) stock-based compensation, (ii) amortization of intangibles (which primarily relates to the amortization of finite-lived customer relationships and technology associated with the Company's historical acquisitions, including those associated with the acquisition of Enercon), and (iii) unrealized foreign currency exchange (gains) losses. We believe this change enhances investor insight into our operational performance. We have applied this modified definition of Adjusted EBITDA and Non-GAAP EPS to all periods presented. Please refer to the financial information included with this press release for reconciliations of GAAP financial measures to Non-GAAP financial measures and our explanation of why we present Non-GAAP financial measures.

Website Information

We routinely post important information for investors on our website, www.belfuse.com, in the "Investor Relations" section. We may use our website as a means of disclosing material, otherwise non-public information and for complying with our disclosure obligations under Regulation FD. Accordingly, investors should monitor the Investor Relations section of our website, in addition to following our press releases, SEC filings, public conference calls, presentations and webcasts. The information contained on, or that may be accessed through, our website is not incorporated by reference into, and is not a part of, this document.

[Financial tables follow]

Bel Fuse Inc.

Supplementary Information(1)

Condensed Consolidated Statements of Operations

(in thousands, except per share amounts)

(unaudited)

Three Months Ended

March 31,

2026

2025

Net sales

178,491

152,238

Cost of sales

108,893

93,419

Gross profit

69,598

58,819

As a % of net sales

39.0

38.6

Research and development costs

8,507

7,222

Selling, general and administrative expenses

36,730

29,507

As a % of net sales

20.6

19.4

Restructuring charges (credits)

(2,933

)

Earnout liability adjustments

619

Income from operations

23,666

25,023

As a % of net sales

13.3

16.4

Interest expense

(2,530

)

(4,152

)

Interest income

150

275

Other (expense) income, net

(3,494

)

2,639

Earnings before income taxes

17,792

23,785

Provision for income taxes

2,808

5,463

Effective tax rate

15.8

23.0

Net earnings

14,984

18,322

As a % of net sales

8.4

12.0

Less: Net earnings attributable to noncontrolling interest

972

838

Redemption value adjustment attributable to noncontrolling interest

2,633

(390

)

Net earnings attributable to Bel Fuse shareholders

11,379

17,874

Weighted average number of shares outstanding:

Class A common shares - basic and diluted

2,115

Class B common shares - basic

10,551

10,457

Class B common shares - diluted

10,554

10,457

Net earnings per common share:

Class A common shares - basic and diluted

0.86

1.36

Class B common shares - basic

0.91

1.43

Class B common shares - diluted

0.91

1.43

(1) The supplementary information included in this press release for 2026 is preliminary and subject to change prior to the filing of our upcoming Quarterly Report on Form 10-Q with the SEC.

Bel Fuse Inc.

Supplementary Information(1)

Condensed Consolidated Balance Sheets

(in thousands, unaudited)

March 31, 2026

December 31, 2025

Assets

Current assets:

Cash and cash equivalents

59,446

57,800

Accounts receivable, net

120,036

121,490

Inventories

181,234

167,270

Other current assets

36,436

38,201

Total current assets

397,152

384,761

Property, plant and equipment, net

48,479

48,428

Right-of-use assets

20,761

22,868

Goodwill and other intangible assets, net

438,953

432,787

Other assets

46,575

46,356

Total assets

951,920

935,200

Liabilities, redeemable noncontrolling interest and shareholders' equity

Current liabilities:

Accounts payable

63,965

52,990

Operating lease liabilities, current

7,228

8,029

Other current liabilities

53,555

66,426

Total current liabilities

124,748

127,445

Long-term debt

204,500

197,500

Operating lease liabilities long-term

14,420

15,867

Other liabilities

72,544

75,714

Total liabilities

416,212

416,526

Redeemable noncontrolling interest

96,766

93,161

Shareholders' equity

438,942

425,513

Total liabilities, redeemable noncontrolling interest and shareholders' equity

951,920

935,200

(1) The supplementary information included in this press release for 2026 is preliminary and subject to change prior to the filing of our upcoming Quarterly Report on Form 10-Q with the SEC. The Company’s strategic realignment of its business units, discussed in its current report on Form 8-K filed with the SEC on April 6, 2026 (the “Prior Form 8-K”), does not impact the presentation of this supplementary information, which presents the Company’s results on a consolidated basis.

Bel Fuse Inc.

Supplementary Information(1)

Condensed Consolidated Statements of Cash Flows

(in thousands, unaudited)

Three Months Ended

March 31,

2026

2025

Cash flows from operating activities:

Net earnings

14,984

18,322

Adjustments to reconcile net earnings to net cash provided by operating activities:

Depreciation and amortization

6,624

6,684

Stock-based compensation

2,077

1,179

Amortization of deferred financing costs

328

295

Deferred income taxes

(2,748

)

(1,412

)

Net unrealized losses (gains) on foreign currency revaluation

3,145

(3,663

)

Other, net

(518

)

Changes in operating assets and liabilities:

Decrease in accounts receivable

3,817

8,220

Decrease (Increase) unbilled receivables

1,021

(601

)

Increase in inventories

(12,248

)

(2,462

)

Increase in other current assets

(546

)

(3,266

)

Decrease in other assets

1,019

2,925

Increase (Decrease) accounts payable

9,731

(3,374

)

Decrease in accrued expenses

(6,598

)

(11,058

)

Decrease in accrued restructuring costs

(320

)

(4,508

)

(Decrease) Increase in income taxes payable

(350

)

4,107

Decrease in other liabilities

(6,134

)

(2,723

)

Net cash provided by operating activities

13,828

8,147

Cash flows from investing activities:

Purchases of property, plant and equipment

(2,643

)

(2,790

)

Investment in related party notes receivable

(333

)

Proceeds from disposal/sale of property, plant and equipment

Acquisition of business, net of cash acquired

(15,224

)

Net cash used in investing activities

(17,867

)

(3,065

)

Cash flows from financing activities:

Dividends paid to common shareholders

(840

)

(829

)

Repayments under revolving line of credit

(13,000

)

(12,500

)

Borrowings under revolving line of credit

20,000

5,000

Net cash provided by (used in) financing activities

6,160

(8,329

)

Effect of exchange rate changes on cash

(475

)

921

Net increase (decrease) in cash and cash equivalents

1,646

(2,326

)

Cash and cash equivalents - beginning of year

57,800

68,253

Cash and cash equivalents - end of year

59,446

65,927

Supplementary information:

Cash paid during the period for:

Income taxes, net of refunds received

5,692

2,277

Interest payments

2,550

4,207

ROU assets obtained in exchange for lease obligations

106

637

Bel Fuse Inc.

Supplementary Information(1)

Segment Highlights

(dollars in thousands, unaudited)

Sales

Gross Margin

Q1-26

Q1-25

% Change

Q1-26

Q1-25

Basis Point Change

Aerospace, Defense & Rugged Solutions

99,821

83,122

20.1

41.5

40.1

140

Industrial Technology & Data Solutions

78,670

69,116

13.8

36.6

37.3

(70

)

Total

178,491

152,238

17.2

39.0

38.6

(1) The supplementary information included in this press release for 2026 is preliminary and subject to change prior to the filing of our upcoming Quarterly Report on Form 10-Q with the SEC.

Bel Fuse Inc.

Supplementary Information(1)

Reconciliation of GAAP Net Earnings to Non-GAAP Operating Income and Adjusted EBITDA

(in thousands, unaudited)

Three Months Ended

March 31,

2026

2025

GAAP Net earnings

14,984

18,322

Provision for income taxes

2,808

5,463

Other expense/income, net

3,494

(2,639

)

Interest income

(150

)

(275

)

Interest expense

2,530

4,152

GAAP Operating Income

23,666

25,023

Restructuring charges (credits)

(2,933

)

Earnout liability adjustments

619

Stock-based compensation

2,077

1,179

Acquisition related costs

1,414

Amortization of inventory step-up

958

Non-GAAP Operating Income

27,852

24,227

Depreciation and amortization

6,624

6,684

Adjusted EBITDA

34,476

30,911

% of net sales

19.3

20.3

Bel Fuse Inc.

Supplementary Information(1)

Reconciliation of GAAP Measures to Non-GAAP Measures

(in thousands, except per share data) (unaudited)

The following tables detail the impact that certain unusual or special items had on the Company's net earnings per common Class A and Class B basic shares ("EPS") and the line items in which these items were included on the consolidated statements of operations.

Three Months Ended March 31, 2026

Three Months Ended March 31, 2025

Reconciling Items

Earnings before taxes

Provision for income taxes

Net Earnings Attributable to Bel Fuse Shareholders

Basic Class A EPS(2)

Basic Class B EPS(2)

Earnings before taxes

Provision for income taxes

Net Earnings Attributable to Bel Fuse Shareholders

Basic Class A EPS(2)

Basic Class B EPS(2)

GAAP measures

17,792

2,808

11,379

0.86

0.91

23,785

5,463

17,874

1.36

1.43

Restructuring charges

0.01

(2,933

)

(371

)

(2,562

)

(0.20

)

(0.21

)

Earnout liability adjustments

619

520

0.04

Stock-based compensation

2,077

463

1,614

0.12

0.13

1,179

243

936

0.07

0.08

Acquisition related costs

1,414

325

1,089

0.08

0.09

Redemption value adjustment on redeemable NCI

2,633

0.20

0.21

(390

)

(0.03

)

(0.03

)

Amortization of inventory step-up

958

220

738

0.06

Amortization of intangibles

3,700

647

3,053

0.23

0.24

3,686

648

3,038

0.23

0.24

Unrealized foreign currency exchange losses

3,145

730

2,415

0.18

0.19

(3,663

)

(868

)

(2,795

)

(0.21

)

(0.22

)

Non-GAAP measures

28,823

5,083

22,768

1.72

1.81

23,012

5,335

16,839

1.28

1.35

(2) Individual amounts of earnings per share may not agree to the total due to rounding.

GRAPHIC

Filename: bel_logo.jpg · Sequence: 7

Binary file (10786 bytes)

Download bel_logo.jpg

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 9

v3.26.1

Document And Entity Information

Apr. 29, 2026

Document Information [Line Items]

Entity, Registrant Name

BELFUSE INC /NJ

Document, Type

8-K

Document, Period End Date

Apr. 29, 2026

Entity, Incorporation, State or Country Code

Entity, File Number

000-11676

Entity, Tax Identification Number

22-1463699

Entity, Address, Address Line One

300 Executive Drive, Suite 300

Entity, Address, City or Town

West Orange

Entity, Address, State or Province

Entity, Address, Postal Zip Code

07052

City Area Code

201

Local Phone Number

432-0463

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Entity, Emerging Growth Company

false

Amendment Flag

false

Entity, Central Index Key

0000729580

ClassACommonStock Custom [Member]

Document Information [Line Items]

Title of 12(b) Security

Class A Common Stock

Trading Symbol

BELFA

Security Exchange Name

NASDAQ

ClassBCommonStock Custom [Member]

Document Information [Line Items]

Title of 12(b) Security

Class B Common Stock

Trading Symbol

BELFB

Security Exchange Name

NASDAQ

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:

dei_DocumentInformationLineItems

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

Period Type:

duration

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

Period Type:

duration

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

Period Type:

duration

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

Period Type:

duration

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

Period Type:

duration

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

Period Type:

duration

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

Period Type:

duration

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

Period Type:

duration

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

Period Type:

duration

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Details

Name:

us-gaap_StatementClassOfStockAxis=belfa_ClassACommonStockCustomMember

Namespace Prefix:

Data Type:

Balance Type:

Period Type:

- Details

Name:

us-gaap_StatementClassOfStockAxis=belfa_ClassBCommonStockCustomMember

Namespace Prefix:

Data Type:

Balance Type:

Period Type: