Welcome to our dedicated page for Bel Fuse SEC filings (Ticker: BELFA), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The Bel Fuse Inc (BELFA) SEC filings page on Stock Titan brings together the company’s regulatory disclosures, including current reports on Form 8-K and other documents filed with the U.S. Securities and Exchange Commission. Bel Fuse Inc, incorporated in New Jersey with corporate offices in West Orange, New Jersey, files reports that describe its financial results, risk factors and significant corporate events related to its business of designing, manufacturing and marketing products that power, protect and connect electronic circuits.
Investors can use this page to access filings that discuss Bel’s performance across its Power Solutions and Protection, Connectivity Solutions and Magnetic Solutions product groups, and its exposure to end markets such as defense and commercial aerospace, networking, telecommunications, computing, general industrial, high-speed data transmission, transportation and eMobility. For example, a Form 8-K dated October 29, 2025 furnished a press release covering results for the three and nine months ended September 30, 2025.
Through Stock Titan, these filings are updated as they are made available on EDGAR, and AI-powered summaries help explain the key points in straightforward language. Users can quickly see what Bel reports about its sales trends, gross margins, non-GAAP financial measures and other topics discussed in its reports. The filings page also provides a path to review disclosures related to items such as anticipated impairment charges on investments, property sales and other material developments referenced in Bel’s press releases and formal filings.
Whether you are looking for quarterly updates, current reports on significant events or background on Bel’s regulatory history, this SEC filings page offers a structured way to read the underlying documents and AI-generated highlights side by side.
Bel Fuse Inc. files its annual report describing a diversified electronics business serving defense, aerospace, networking, telecommunications, industrial and transportation markets. In 2024 Bel acquired an 80% stake in Enercon Technologies for approximately $325.6 million, funded by $85.6 million of cash and about $240 million of new borrowings under its revolving credit facility. Enercon expands Bel’s customized power and networking solutions for global defense and aerospace customers, though future growth synergies and the planned purchase of the remaining 20% interest by early 2027 are described as uncertain and subject to conditions. In 2025 total product bookings reached $732.9 million, up 75.8% from 2024, and backlog was about $452.2 million as of January 31, 2026, with management expecting most of it to ship by year-end. Revenue is broadly spread across Power Solutions & Protection, Connectivity Solutions and Magnetic Solutions, which together support a wide mix of end markets and reduce dependence on any single customer. The report highlights significant risk exposures, including heavy manufacturing and workforce concentration in the PRC, geopolitical and security risks tied to Enercon’s Israeli operations, cyclical defense spending that drives Enercon demand, trade and tariff uncertainty, environmental and ESG regulation, and cybersecurity threats. Bel also records a $13.1 million impairment on its minority investment in innolectric and related notes, and discloses total debt of $197.5 million with a leverage ratio of 1.4x under its credit agreement, which requires leverage to stay below 3.50x.
Bel Fuse Inc. reported strong growth for 2025, with net sales rising to $675.5 million from $534.8 million, a 26.3% increase, and gross margin improving to 39.1% from 37.8%. Adjusted EBITDA grew to $142.9 million, or 21.2% of sales, up from $101.9 million and 19.0%.
In the fourth quarter of 2025, net sales were $175.9 million, up 17.4% year over year, with gross margin at 39.4%. GAAP results showed a $5.4 million net loss attributable to shareholders, driven by a $13.1 million non-cash impairment on an equity method investment and related loans, while Non-GAAP net earnings were $24.9 million and Adjusted EBITDA was $37.6 million.
Growth was broad-based, led by Power Solutions and Protection, where full-year sales increased 45.3%. Management highlighted strong demand in commercial aerospace and defense and recovering networking and distribution channels. For the first quarter of 2026, Bel estimates net sales of $165–$180 million and expects gross margin of 37–39%.
Janus Henderson Group plc reported beneficial ownership of 619,337 shares of Bel Fuse Inc. Class B common stock, representing 5.9% of the class as of 12/31/2025. The shares are held across various managed portfolios advised by its asset manager subsidiaries.
Janus Henderson’s asset managers have shared power to vote and dispose of these shares, with no sole voting or dispositive power. The securities are held in the ordinary course of business, and the filing states they are not held for the purpose of changing or influencing control of Bel Fuse Inc.
T. Rowe Price Associates, Inc. reported beneficial ownership of 834,270 shares of Bel Fuse Inc. Class B common stock, representing 7.9% of the class as of the event date 12/31/2025.
T. Rowe Price has sole voting power over 822,941 shares and sole dispositive power over 834,261 shares, with no shared voting or dispositive authority. The firm states the position was acquired and is held in the ordinary course of business and not for the purpose of changing or influencing control of Bel Fuse. The filing also affirms that T. Rowe Price Associates denies being the beneficial owner of these securities beyond its investment advisory role.
Bel Fuse Inc. officer Thomas Smelker, President – Connectivity Solution, filed an initial ownership report as of 01/26/2026. The Form 3 states that he beneficially owns 0 shares of Class A Common Stock and 0 shares of Class B Common Stock, all reported as directly held.
Bel Fuse Inc.’s Class A common stock remains significantly held by investment firms associated with Mario Gabelli. The amended ownership report shows the group controls 123,600 shares, or 5.84% of the 2,115,263 Class A shares outstanding as of the quarter ended September 30, 2025.
The holdings are concentrated in GAMCO Asset Management Inc. with 59,200 shares (2.80%), Gabelli Funds LLC with 63,800 shares (3.02%), and MJG Associates Inc. with 600 shares (0.03%). Several related entities, including GAMCO Investors, GGCP, Associated Capital Group and Mario Gabelli personally, report zero direct beneficial ownership.
The group chooses to use the long-form Schedule 13D because its members may regularly communicate with Bel Fuse management and want these contacts to align with reporting obligations. Recent activity detailed in the filing shows multiple open-market sales of Bel Fuse Class A shares by Gabelli Funds and GAMCO during December 2025 and January 2026.
Bel Fuse Inc. announced that Peter Bittner III, Vice President and President of its Bel Connectivity Solutions division, will retire effective April 3, 2026. The board has appointed Thomas Smelker to succeed him as Vice President and President of Bel Connectivity Solutions starting January 26, 2026, with Bittner helping during a transition period.
Smelker brings nearly 30 years of experience, most recently as Senior Vice President of Mercury Systems’ Processing Technologies unit. Under his employment agreement, he will receive a $450,000 annual base salary, target annual variable compensation equal to 125% of base salary (payable 60% in cash and 40% in equity, subject to adjustment), and an annual performance share unit award with a target of 75% of base salary, based on performance goals.
The agreement also provides a one-time $1,050,000 signing bonus, split between equity and a $450,000 cash payment, plus potential relocation reimbursement and up to $5,000 in legal fee reimbursement. If he is terminated without cause or resigns for good reason, he is eligible for salary continuation, pro-rata bonus, continued vesting of most equity, and health benefits, with enhanced cash severance, bonus, and full equity vesting if such a termination occurs within 24 months after a change in control.
Bel Fuse Inc.’s chief financial officer reported selling Class B common stock in several transactions on 12/12/2025.
The report shows sales of 2,521 shares at a weighted average price of $168.71, 1,079 shares at $169.49, 700 shares at $171.39, and 700 shares at $171.74 per share, with each lot executed across multiple trades within stated price ranges.
After these sales, the officer directly owned 22,848 shares of Class B common stock and indirectly held an estimated 2,942 shares of Class A common stock and 132 shares of Class B common stock through a 401(k) plan.
Bel Fuse Inc. director and 10% owner reported sales of Class B common stock in mid‑November 2025. On 11/17/2025, the insider sold 2,323 Class B shares at a weighted average price of $144.2328, and on 11/18/2025 sold 677 Class B shares at a weighted average price of $141.9649. The prices reflect multiple trades in ranges from $139.84 to $148.72 and from $138.46 to $144.27, respectively.
After these transactions, the insider directly owns 28,750 Class B shares and 376,095 Class A shares, plus indirect holdings of 4,265 Class B shares through a spouse and an estimated 6,169 Class A shares in a 401(k) plan.