Bel Fuse Inc /NJ SEC filings BELFB
Bel Fuse Inc /NJ has 1,003 filings in SEC EDGAR's recent list, going back to Feb 2, 2001. Its latest annual report, Form ARS, was filed on Apr 10, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 3, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 28, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 3 | Initial insider ownership | Oct 7, 2026 | Sep 28, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Sep 14, 2026 |
| 144 | Notice of proposed sale | Sep 14, 2026 | — |
| 4 | Insider transaction | Sep 4, 2026 | Sep 2, 2026 |
| 144 | Notice of proposed sale | Sep 2, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| 4 | Insider transaction | Aug 14, 2026 | Aug 12, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 13, 2026 | — |
| 144 | Notice of proposed sale | Aug 12, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 6, 2026 | — |
| 4 | Insider transaction | Jun 3, 2026 | Jun 1, 2026 |
| 144 | Notice of proposed sale | Jun 1, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 15, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | May 14, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| 4 | Insider transaction | Mar 17, 2026 | Mar 15, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 15, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 15, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 17, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 15, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 15, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 15, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 15, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 15, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 15, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 15, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 15, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 15, 2026 |
| 4 | Insider transaction | Mar 17, 2026 | Mar 15, 2026 |
| 144 | Notice of proposed sale | Mar 11, 2026 | — |
| 144 | Notice of proposed sale | Mar 11, 2026 | — |
| 144 | Notice of proposed sale | Mar 10, 2026 | — |
| 144 | Notice of proposed sale | Mar 10, 2026 | — |
| 4 | Insider transaction | Mar 9, 2026 | Mar 5, 2026 |
| 4 | Insider transaction | Feb 26, 2026 | Feb 25, 2026 |
| 144 | Notice of proposed sale | Feb 26, 2026 | — |
| 144 | Notice of proposed sale | Feb 25, 2026 | — |
| 4 | Insider transaction | Feb 25, 2026 | Feb 24, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 144 | Notice of proposed sale | Feb 25, 2026 | — |
| 144 | Notice of proposed sale | Feb 24, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 17, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 17, 2026 | — |
| 3 | Initial insider ownership | Feb 4, 2026 | Jan 26, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jan 28, 2026 | — |
| 4 | Insider transaction | Dec 16, 2025 | Dec 12, 2025 |
| 144 | Notice of proposed sale | Dec 12, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 9, 2025 | — |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 144 | Notice of proposed sale | Nov 17, 2025 | — |
| 144 | Notice of proposed sale | Nov 17, 2025 | — |
| 144 | Notice of proposed sale | Nov 17, 2025 | — |
| 4 | Insider transaction | Nov 14, 2025 | Nov 12, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 5, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Sep 5, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 29, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 4, 2025 | — |
| 4 | Insider transaction | Aug 4, 2025 | Aug 1, 2025 |
| 144 | Notice of proposed sale | Aug 1, 2025 | — |
| 4 | Insider transaction | Aug 1, 2025 | Jul 31, 2025 |
| 144 | Notice of proposed sale | Jul 31, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 31, 2025 | — |
| 4 | Insider transaction | Jun 16, 2025 | Jun 13, 2025 |
| 144 | Notice of proposed sale | Jun 13, 2025 | — |
| 4 | Insider transaction | May 1, 2025 | Apr 30, 2025 |
| 144 | Notice of proposed sale | Apr 30, 2025 | — |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 15, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 20, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 10, 2025 | — |
| 4 | Insider transaction | Feb 4, 2025 | Feb 3, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Dec 20, 2024 | — |
| 4 | Insider transaction | Nov 26, 2024 | Nov 26, 2024 |
| 144 | Notice of proposed sale | Nov 25, 2024 | — |
| 4 | Insider transaction | Nov 22, 2024 | Nov 20, 2024 |
| 4 | Insider transaction | Nov 22, 2024 | Nov 21, 2024 |
| 144 | Notice of proposed sale | Nov 20, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Nov 15, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Nov 7, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Oct 17, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Oct 7, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Sep 20, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Aug 15, 2024 | — |
| 3 | Initial insider ownership | Jul 2, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | May 17, 2024 | May 14, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 29, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Apr 23, 2024 | — |
| 4 | Insider transaction | Mar 15, 2024 | Mar 15, 2024 |
| 4 | Insider transaction | Mar 15, 2024 | Mar 15, 2024 |
| 4 | Insider transaction | Mar 15, 2024 | Mar 15, 2024 |
| 4 | Insider transaction | Mar 15, 2024 | Mar 15, 2024 |
| 4 | Insider transaction | Mar 15, 2024 | Mar 15, 2024 |
| 4 | Insider transaction | Mar 15, 2024 | Mar 15, 2024 |
| 4 | Insider transaction | Mar 15, 2024 | Mar 15, 2024 |
| 4 | Insider transaction | Mar 15, 2024 | Mar 15, 2024 |
| 4 | Insider transaction | Mar 15, 2024 | Mar 13, 2024 |
| 144 | Notice of proposed sale | Mar 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Jan 26, 2024 | — |
| 4 | Insider transaction | Jan 17, 2024 | Jan 15, 2024 |
| 4 | Insider transaction | Jan 17, 2024 | Jan 15, 2024 |
| 4 | Insider transaction | Jan 17, 2024 | Jan 15, 2024 |
| 4 | Insider transaction | Jan 17, 2024 | Jan 15, 2024 |
| 4 | Insider transaction | Jan 17, 2024 | Jan 15, 2024 |
| 4 | Insider transaction | Jan 17, 2024 | Jan 15, 2024 |
| 4 | Insider transaction | Jan 17, 2024 | Jan 15, 2024 |
| 4 | Insider transaction | Jan 17, 2024 | Jan 15, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 16, 2024 | — |
| 4 | Insider transaction | Dec 15, 2023 | Dec 15, 2023 |
| 4 | Insider transaction | Dec 15, 2023 | Dec 14, 2023 |
| 4 | Insider transaction | Dec 14, 2023 | Dec 14, 2023 |
| 144 | Notice of proposed sale | Dec 13, 2023 | — |
| 4 | Insider transaction | Dec 5, 2023 | Dec 4, 2023 |
| 4 | Insider transaction | Dec 5, 2023 | Dec 4, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Dec 4, 2023 | — |
| 144 | Notice of proposed sale | Dec 4, 2023 | — |
| 144 | Notice of proposed sale | Dec 4, 2023 | — |
| 4 | Insider transaction | Sep 14, 2023 | Sep 14, 2023 |
| 4 | Insider transaction | Sep 5, 2023 | Sep 1, 2023 |
| 4 | Insider transaction | Sep 5, 2023 | Aug 31, 2023 |
| 144 | Notice of proposed sale | Sep 5, 2023 | — |
| 4 | Insider transaction | Jun 16, 2023 | Jun 15, 2023 |
| 4 | Insider transaction | Jun 1, 2023 | May 31, 2023 |
| 4 | Insider transaction | May 12, 2023 | May 11, 2023 |
| 144 | Notice of proposed sale | May 10, 2023 | — |
| 4 | Insider transaction | May 9, 2023 | May 5, 2023 |
| 4 | Insider transaction | Mar 14, 2023 | Mar 13, 2023 |
| SC 13G | Ownership over 5% (passive) | Mar 10, 2023 | — |
| 4 | Insider transaction | Mar 8, 2023 | Mar 1, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 3, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Mar 2, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2023 | — |
| SC 13G | Ownership over 5% (passive) | Feb 9, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 17, 2023 | — |
| 3 | Initial insider ownership | Jan 4, 2023 | Jan 1, 2023 |
| 3 | Initial insider ownership | Jan 4, 2023 | Jan 1, 2023 |
| 4 | Insider transaction | Dec 15, 2022 | Dec 15, 2022 |
| 4 | Insider transaction | Dec 5, 2022 | Dec 2, 2022 |
| 4 | Insider transaction | Dec 2, 2022 | Nov 15, 2022 |
| 4 | Insider transaction | Dec 2, 2022 | Nov 30, 2022 |
| 3 | Initial insider ownership | Nov 30, 2022 | Nov 21, 2022 |
| 4 | Insider transaction | Nov 17, 2022 | Nov 15, 2022 |
| 4 | Insider transaction | Nov 17, 2022 | Nov 15, 2022 |
| 4 | Insider transaction | Nov 17, 2022 | Nov 16, 2022 |
| SC 13D | Ownership over 5% (active) | Nov 10, 2022 | — |
| 4 | Insider transaction | Sep 7, 2022 | Sep 6, 2022 |
| 4 | Insider transaction | Sep 7, 2022 | Sep 6, 2022 |
| 4 | Insider transaction | Aug 12, 2022 | Aug 12, 2022 |
| 4 | Insider transaction | Aug 12, 2022 | Aug 11, 2022 |
| 4 | Insider transaction | Aug 5, 2022 | Aug 4, 2022 |
| 4 | Insider transaction | Jun 14, 2022 | Jun 13, 2022 |
| 4 | Insider transaction | Mar 11, 2022 | Mar 11, 2022 |
| SC 13G | Ownership over 5% (passive) | Feb 11, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 11, 2022 | — |
| 4 | Insider transaction | Dec 16, 2021 | Dec 14, 2021 |
| 4 | Insider transaction | Dec 2, 2021 | Nov 30, 2021 |
| 4 | Insider transaction | Nov 29, 2021 | Nov 24, 2021 |
| 4 | Insider transaction | Nov 17, 2021 | Nov 15, 2021 |
| 4 | Insider transaction | Nov 17, 2021 | Nov 15, 2021 |
| 4 | Insider transaction | Nov 17, 2021 | Nov 15, 2021 |
| 4 | Insider transaction | Nov 17, 2021 | Nov 15, 2021 |
| 4 | Insider transaction | Nov 17, 2021 | Nov 15, 2021 |
| 3 | Initial insider ownership | Nov 5, 2021 | Oct 28, 2021 |
| 4 | Insider transaction | Sep 14, 2021 | Sep 13, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 9, 2021 | — |
| 4 | Insider transaction | Aug 13, 2021 | Aug 11, 2021 |
| 4/A | Form 4/a | Aug 11, 2021 | Aug 9, 2021 |
| 4 | Insider transaction | Aug 10, 2021 | Aug 9, 2021 |
| 3 | Initial insider ownership | Aug 6, 2021 | Jul 29, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 8, 2021 | — |
| 4 | Insider transaction | Jun 1, 2021 | May 15, 2021 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 8, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Mar 18, 2021 | — |
| 3 | Initial insider ownership | Feb 18, 2021 | Feb 15, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2021 | — |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Electronic Coils, Transformers & Other Inductors (SIC 3677)
- Listed as
- BELFA (Nasdaq), BELFB (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- NJ
- Headquarters
- West Orange, NJ
- SEC filer status
- Large accelerated filer
- SEC CIK
- 729580
Source: SEC EDGAR filings. This is company-reported data, not investment advice.