Bel Fuse Inc
BELFB- Exchange
- Nasdaq
- Industry
- Electronic Coils, Transformers & Other Inductors
- SEC CIK
- 0000729580
In the last 90 days, Bel Fuse Inc insiders filed 0 open-market purchases and 3 sales; 276 institutions reported holding it in 13F filings for Q2 2026, worth $4.18B in total; no superinvestor holds it.
Other share classesBELFA
13F holders, Q1 2026
Institutional positions in Bel Fuse Inc as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 235
- +34 vs. Q4 2025
- Shares held
- 10.3M
- +1.14M (+12.4%) vs. Q4 2025
- Total value
- $2.05B
- +$488.9M (+31.3%) vs. Q4 2025
- New holders
- 60
- 77 more added
- Sold out
- 26
- 69 more reduced
6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting BELFB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 276 | $4.18B |
| Q1 2026 | 235 | $2.05B |
| Q4 2025 | 207 | $1.72B |
| Q3 2025 | 197 | $1.31B |
| Q2 2025 | 174 | $941.8M |
| Q1 2025 | 164 | $689.3M |
| Q4 2024 | 168 | $714.9M |
| Q3 2024 | 163 | $656.5M |
| Q2 2024 | 153 | $539.8M |
| Q1 2024 | 147 | $456.7M |
| Q4 2023 | 146 | $491.0M |
| Q3 2023 | 134 | $333.4M |
| Q2 2023 | 126 | $412.5M |
| Q1 2023 | 96 | $250.6M |
| Q4 2022 | 90 | $205.7M |
| Q3 2022 | 83 | $160.2M |
| Q2 2022 | 61 | $95.9M |
| Q1 2022 | 70 | $111.9M |
| Q4 2021 | 67 | $79.4M |
| Q3 2021 | 82 | $79.1M |
| Q2 2021 | 82 | $107.4M |
| Q1 2021 | 88 | $155.6M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Bel Fuse Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Morgan Stanley | 61,252 | $12.1M | 0.00% | +19,693+47.4% | Added |
| Boston Partners | 65,443 | $13.0M | 0.01% | +2,800+4.5% | Added |
| Santa Monica Partners LP | 67,634 | $13.4M | 7.47% | 00.0% | Unchanged |
| Vanguard Fiduciary Trust Co | 70,822 | $14.0M | 0.00% | +70,822 | New |
| Invesco Ltd. | 74,026 | $14.7M | 0.00% | −95,326−56.3% | Reduced |
| Brown Advisory Inc | 82,149 | $16.3M | 0.03% | −36,074−30.5% | Reduced |
| Goldman Sachs Group Inc | 84,150 | $16.7M | 0.00% | +3,158+3.9% | Added |
| Royce & Associates LP | 97,173 | $19.2M | 0.19% | +5,138+5.6% | Added |
| Allspring Global Investments Holdings, LLC | 94,822 | $19.3M | 0.03% | +94,796+364,600.0% | Added |
| Charles Schwab Investment Management Inc | 97,672 | $19.3M | 0.00% | −2,494−2.5% | Reduced |
| Northern Trust Corp | 104,880 | $20.8M | 0.00% | +3,940+3.9% | Added |
| Franklin Resources Inc | 114,353 | $22.6M | 0.01% | +102,052+829.6% | Added |
| Advisory Research Inc | 119,364 | $23.6M | 2.91% | −15,426−11.4% | Reduced |
| Massachusetts Financial Services Co | 123,498 | $24.5M | 0.01% | −15,499−11.2% | Reduced |
| GW&K Investment Management, LLC | 130,419 | $25.8M | 0.23% | −31,898−19.7% | Reduced |
| Tema ETFs LLC | 133,318 | $26.4M | 1.77% | +43,400+48.3% | Added |
| Bessemer Group Inc | 137,318 | $27.2M | 0.04% | −69,594−33.6% | Reduced |
| Toroso Investments, LLC | 141,791 | $28.1M | 0.09% | +141,791 | New |
| Loomis Sayles & Co L P | 145,648 | $28.8M | 0.04% | −55,064−27.4% | Reduced |
| Lord, Abbett & Co. LLC | 167,404 | $33.1M | 0.11% | +105,939+172.4% | Added |
| Thrivent Financial for Lutherans | 188,056 | $37.2M | 0.07% | −47,949−20.3% | Reduced |
| Renaissance Technologies LLC | 213,872 | $42.3M | 0.07% | −17,479−7.6% | Reduced |
| Fisher Asset Management, LLC | 215,648 | $42.7M | 0.01% | −35,960−14.3% | Reduced |
| State Street Corp | 242,454 | $48.0M | 0.00% | −4,505−1.8% | Reduced |
| JPMorgan Chase & Co | 249,387 | $49.3M | 0.00% | +106,026+74.0% | Added |
| Dimensional Fund Advisors LP | 256,833 | $50.9M | 0.01% | +1,992+0.8% | Added |
| Geode Capital Management, LLC | 308,048 | $61.0M | 0.00% | +40,098+15.0% | Added |
| Vanguard Portfolio Management LLC | 329,461 | $65.2M | 0.00% | +329,461 | New |
| Wasatch Advisors Inc | 478,709 | $94.8M | 0.63% | +68,222+16.6% | Added |
| Vanguard Capital Management LLC | 489,081 | $96.8M | 0.00% | +489,081 | New |
| T. Rowe Price Investment Management, Inc. | 572,919 | $113.4M | 0.08% | +53,914+10.4% | Added |
| FMR LLC | 631,307 | $125.0M | 0.01% | −36,369−5.4% | Reduced |
| Janus Henderson Group PLC | 760,141 | $150.6M | 0.07% | +140,804+22.7% | Added |
| Price T Rowe Associates Inc | 773,475 | $153.1M | 0.02% | −60,786−7.3% | Reduced |
| BlackRock, Inc. | 846,920 | $167.7M | 0.00% | −19,146−2.2% | Reduced |
| NEOS Investment Management LLC | 0 | $0 | 0.00% | −89,918−100.0% | Sold out |
| Congruence Capital, LLC | 0 | $0 | 0.00% | −55,759−100.0% | Sold out |
| Makaira Partners LLC | 0 | $0 | 0.00% | −55,000−100.0% | Sold out |
| Granahan Investment Management Inc | 0 | $0 | 0.00% | −29,884−100.0% | Sold out |
| Manatuck Hill Partners, LLC | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −6,569−100.0% | Sold out |
| SummitTX Capital, L.P. | 0 | $0 | 0.00% | −4,033−100.0% | Sold out |
| Natixis | 0 | $0 | 0.00% | −4,000−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −4,000−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −3,858−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −3,176−100.0% | Sold out |
| DekaBank Deutsche Girozentrale | 0 | $0 | 0.00% | −8,287−100.0% | Sold out |
| Numerai GP LLC | 0 | $0 | 0.00% | −2,177−100.0% | Sold out |
| Money Concepts Capital Corp | 0 | $0 | 0.00% | −1,925−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −1,883−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −1,863−100.0% | Sold out |
| Paragon Associates & Paragon Associates II Joint Venture | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −1,485−100.0% | Sold out |
| Strategic Family Wealth Counselors, L.L.C. | 0 | $0 | 0.00% | −1,105−100.0% | Sold out |
| Arkadios Wealth Advisors | 0 | $0 | 0.00% | −1,227−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −1,195−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −590−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −532−100.0% | Sold out |
| Erste Asset Management GmbH | 0 | $0 | 0.00% | −490−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −327−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −144−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Perritt Capital Management Inc | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| ORG Partners LLC | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |