Information Technology · Electronic Coils, Transformers & Other Inductors

BELFB BEL FUSE INC /NJ SEC Filings & Insider Trading Activity 2026

company
CIK 729580194 filings
Russell 2000

BELFB at a glance

BEL FUSE INC /NJ (BELFB, SEC CIK 729580) filed its latest 10-K annual report on February 24, 2026, a 10-Q quarterly report on August 4, 2026, an 8-K current report on July 29, 2026 and Form 4 insider filings as recently as September 15, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.

  • For the fiscal year ended December 31, 2025 (FY2025), BEL FUSE INC /NJ (BELFB) reported revenue of $675.5 million (up 26.3% from FY2024) and net income of $61.5 million.
  • As of June 30, 2026, 31 institutional investment managers tracked by SignalX reported holding BEL FUSE INC /NJ (BELFB) shares worth $2.1 billion in 13F-HR filings.
  • The most recent insider open-market sale reported on Form 4 was by Vellucci Vincent on September 14, 2026 of 1,000 shares at $235.15 per share.
  • In the last 90 days, BELFB insiders reported 0 open-market purchases ($0) and 3 open-market sales ($477K) on Form 4, a net sale of $477K.

Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).

Revenue · FY2025
$675.5M
+26.3% vs prior year
Insiders · 90 days
0 buys · 3 sells
Net −$477K
13F holders
31 funds
$2.1B · +2 vs prior quarter
Latest 8-K
Jul 29, 2026
Item 2.02

AI 10-K Annual Report Analysis

Latest 10-K, fiscal year ended Dec 31, 2025

Full analysis →

Business Overview

  • Core business model: designs, manufactures, markets electronic circuit power, protection, and connectivity products for diverse industries
  • No new products, services, or segments explicitly introduced or emphasized this year
  • Strategic focus on technical innovation and cost-effective new product development with world-class engineering partners
  • Operations span North America, Europe/Middle East (EMEA), Asia across multiple facilities under two operating segments
  • Over 75 years in business demonstrating long-term global presence and trusted supplier status

Risk Factors

  • Regulatory/legal risk: $13.1M impairment charge in Q4-25 for innolectric investment due to insolvency and cessation of majority owner financial support
  • Geopolitical/macro risk: PRC labor shortages affected by government and social policies could force higher-cost manufacturing relocation, materially hurting margins
  • Operational risk: Supply chain constrained by limited suppliers and trade restrictions, potentially causing component shortages, increased costs, and production disruption
  • Competitive risk: Industry consolidation with larger competitors possessing superior financial and technological resources threatens market position
  • Financial/structural risk: Integration risks and revenue timing uncertainty from Enercon acquisition, with potential disruption if remaining 20% stake not acquired by early 2027

Management Discussion & Analysis

  • Revenue $675.5M in 2025, up 26.3% YoY from $534.8M in 2024; Power Solutions up $111.3M (45.3%) with $136.6M from Enercon acquisition
  • Gross margin 39.1% in 2025 vs 37.8% in 2024; Power Solutions margin 42.7% vs 42.4%, Connectivity 38.7% vs 37.1%, Magnetic 27.6% vs 25.3%
  • Best segment: Power Solutions $356.8M sales (+45.3%), margin 42.7%; Worst segment: Magnetic $86.4M sales (+25.4%) but lowest margin 27.6%
  • Cash flow: No direct cash flow data; restructuring charges $2.4M in 2025; $5.7M gain on property sales; interest expense $14.8M (up from $4.1M); no buybacks or dividends disclosed
  • Outlook/risks: Supply chain impacted by rising commodity prices, tariffs, labor cost increases; $13.1M impairment on minority investment; uncertainties from U.S. tariff legal rulings

AI summary of the BELFB 10-K filed . Generated from the filing text; verify against the original.View on SEC EDGARHow to read a 10-K

AI 10-Q Quarterly Report Analysis

Latest 10-Q, quarter ended Jun 30, 2026

Risk Factors

  • No material changes to risk factors disclosed in the December 31, 2025 Form 10-K
  • Carried-forward risks remain the company’s most significant investment considerations
  • Credit risk potentially affected by Fifth Amendment to credit agreement dated June 4, 2026

AI summary of the BELFB 10-Q filed . Generated from the filing text; verify against the original.View on SEC EDGAR10-K vs 10-Q vs 8-K

AI 8-K Current Report Analysis

The most recent material events, by 8-K item

Filed Jul 29, 2026Full analysis →

Item 2.02: Results of Operations and Financial Condition

  • Results cover the three and six months ended June 30, 2026
  • Press release issued July 29, 2026, with detailed financial results furnished as Exhibit 99.1
Filed Jul 2, 2026Full analysis →

Item 5.02: Departure/Appointment of Directors or Principal Officers

  • CEO Farouq Tuweiq base salary increased to $725,000 from $600,000
  • CEO target annual variable compensation increased to $2,100,000 from $1,600,000
Filed May 28, 2026Full analysis →

Item 5.02: Departure/Appointment of Directors or Principal Officers

  • Kenneth Lai named Senior Vice President, ITDS, effective late Q2 or early Q3 2026
  • Expanded remit includes India and private label operations alongside China and other Asia locations

Item 5.07: Submission of Matters to a Vote of Security Holders

  • 2026 annual meeting quorum: 1,914,319 of 2,115,263 Class A shares represented
  • Rita V. Smith and Jacqueline Brito elected to three-year director terms

AI summaries of BELFB 8-K current reports filed with the SEC. What 8-K item codes mean

SignalX for BELFB

Don't miss the next BELFB filing

  • Alerts as it files. A push when BELFB files an 8-K or an insider trades.
  • Fund moves. Which tracked funds opened, added or cut BELFB, by share count.
  • Ask anything. An AI agent that reads every BELFB filing and answers with sources.

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Recent Insider Transactions (Form 4)

Latest reported trades by officers, directors and 10% owners

InsiderTypeDatePrice
Vellucci VincentSellSep 14, 2026$235.15
Vellucci VincentSellSep 2, 2026$243.61
GILBERT PETER ESellAug 12, 2026$292.12
Kozlovsky SuzanneSellJun 1, 2026$266.98
Kozlovsky SuzanneSellJun 1, 2026$274.91
Kozlovsky SuzanneSellJun 1, 2026$270.51
Kozlovsky SuzanneSellJun 1, 2026$272.42
Kozlovsky SuzanneSellJun 1, 2026$269.68

Financial Summary
XBRL

Annual financial summary from SEC XBRL data
MetricFY2023FY2024FY2025
Profitability
Revenue-$534.8M$675.5M
Gross Profit$215.8M$202.4M$264.4M
Operating Income-$64.3M$111.0M
Net Income$73.8M$41.0M$61.5M
Gross Margin-37.8%39.1%
Op. Margin-12.0%16.4%
Net Margin-7.7%9.1%
Balance Sheet
Total Assets$571.6M$949.8M$935.2M
Equity-$360.6M$425.5M
ROE-11.4%14.5%
Cash Flow
Operating CF-$74.1M$80.6M
CapEx$12.1M$14.1M$12.0M

Source: XBRL data in BEL FUSE INC /NJ (BELFB)'s 10-K filings on SEC EDGAR, in USD. Compare across companies →

13F Fund Holdings: Quarterly Trend

Latest: Q2 2026

Aggregate BELFB share value held by 13F filers tracked by SignalX, by quarter.

Quarterly totals table
BELFB shares held by 13F filers tracked by SignalX, by quarter
QuarterFundsTotal value
Q2 202631$2.13B
Q1 202629$921.6M
Q4 202521$791.7M
Q3 202524$607.6M
Q2 202523$376.3M
Q1 202519$199.7M
Q4 202416$214.9M
Q3 202414$149.8M
Position changes: Q1 2026 → Q2 2026
Top Buyers
Top Sellers
Closed Positions

Source: 13F-HR filings on SEC EDGAR (aggregated from 177 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work

BELFB filing archive

AI analysis pages for each 10-K, 10-Q and 8-K

Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4

FormFiling dateAnalysisSEC
4Sep 15, 2026--
4Sep 4, 2026--
4Aug 14, 2026--
10-QAug 4, 2026Analysis
8-KJul 29, 2026Analysis-
8-KJul 2, 2026Analysis-
4Jun 3, 2026-
8-KMay 28, 2026Analysis
SC 13GMay 15, 2026-
SC 13GMay 15, 2026-
SC 13GMay 14, 2026-
8-KMay 14, 2026Analysis
8-KMay 12, 2026Analysis
10-QMay 5, 2026Analysis
8-KApr 29, 2026Analysis-
SC 13GApr 29, 2026-
8-KApr 6, 2026Analysis-
4Mar 17, 2026--
4Mar 17, 2026--
4Mar 17, 2026--
4Mar 17, 2026--
4Mar 17, 2026--
4Mar 17, 2026--
4Mar 17, 2026--
4Mar 17, 2026--

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BELFB SEC filings: frequently asked questions

Are BELFB insiders buying or selling?

In the last 90 days, BEL FUSE INC /NJ (BELFB) officers, directors and 10% owners reported no open-market purchases and 3 open-market sales worth $476,949 by 2 insiders on Form 4. Many insider sales are pre-planned or for taxes, so purchases usually carry more information.

Which institutions hold BELFB stock?

As of June 30, 2026, the largest BEL FUSE INC /NJ (BELFB) holders among the 13F filers tracked by SignalX were BlackRock ($340.5 million), T. Rowe Price Group ($338.3 million), FMR LLC (Fidelity) ($291.8 million), Vanguard Capital Management LLC ($185.0 million), Vanguard Portfolio Management LLC ($132.9 million). 13F-HR reports are filed up to 45 days after each quarter ends.

What was BELFB's revenue in fiscal year 2025?

For the fiscal year ended December 31, 2025 (FY2025), BEL FUSE INC /NJ (BELFB) reported revenue of $675.5 million (up 26.3% from FY2024) and net income of $61.5 million. The figures come from the XBRL data in the 10-K.

What are the main risks in BELFB's latest 10-K?

In the 10-K filed February 24, 2026, BEL FUSE INC /NJ (BELFB) flagged: Regulatory/legal risk: $13.1M impairment charge in Q4-25 for innolectric investment due to insolvency and cessation of majority owner financial support. Geopolitical/macro risk: PRC labor shortages affected by government and social policies could force higher-cost manufacturing relocation, materially hurting margins. (AI summary of the Risk Factors section.)

What did BELFB report in its latest 8-K?

BEL FUSE INC /NJ (BELFB) filed an 8-K on July 29, 2026 reporting Item 2.02 (Results of Operations and Financial Condition). Results cover the three and six months ended June 30, 2026.

What are the latest BELFB SEC filings?

BEL FUSE INC /NJ (BELFB) filed its latest 10-K annual report on February 24, 2026, a 10-Q quarterly report on August 4, 2026, an 8-K current report on July 29, 2026 and a Form 4 insider filing on September 15, 2026.

What is BELFB's SEC CIK number?

BEL FUSE INC /NJ (BELFB)'s SEC Central Index Key (CIK) is 729580. EDGAR lists every BELFB filing under that number.

Ask anything about BELFB

The research agent reads BELFB's filings, financials, insider trades and 13F holders, then answers with sources.