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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 846,920 | $167.7M | 0.00% | −19,146−2.2% | Reduced |
| Price T Rowe Associates Inc | 773,475 | $153.1M | 0.02% | −60,786−7.3% | Reduced |
| Janus Henderson Group PLC | 760,141 | $150.6M | 0.07% | +140,804+22.7% | Added |
| FMR LLC | 631,307 | $125.0M | 0.01% | −36,369−5.4% | Reduced |
| T. Rowe Price Investment Management, Inc. | 572,919 | $113.4M | 0.08% | +53,914+10.4% | Added |
| Vanguard Capital Management LLC | 489,081 | $96.8M | 0.00% | +489,081 | New |
| Wasatch Advisors Inc | 478,709 | $94.8M | 0.63% | +68,222+16.6% | Added |
| Vanguard Portfolio Management LLC | 329,461 | $65.2M | 0.00% | +329,461 | New |
| Geode Capital Management, LLC | 308,048 | $61.0M | 0.00% | +40,098+15.0% | Added |
| Dimensional Fund Advisors LP | 256,833 | $50.9M | 0.01% | +1,992+0.8% | Added |
| JPMorgan Chase & Co | 249,387 | $49.3M | 0.00% | +106,026+74.0% | Added |
| State Street Corp | 242,454 | $48.0M | 0.00% | −4,505−1.8% | Reduced |
| Fisher Asset Management, LLC | 215,648 | $42.7M | 0.01% | −35,960−14.3% | Reduced |
| Renaissance Technologies LLC | 213,872 | $42.3M | 0.07% | −17,479−7.6% | Reduced |
| Thrivent Financial for Lutherans | 188,056 | $37.2M | 0.07% | −47,949−20.3% | Reduced |
| Lord, Abbett & Co. LLC | 167,404 | $33.1M | 0.11% | +105,939+172.4% | Added |
| Loomis Sayles & Co L P | 145,648 | $28.8M | 0.04% | −55,064−27.4% | Reduced |
| Toroso Investments, LLC | 141,791 | $28.1M | 0.09% | +141,791 | New |
| Bessemer Group Inc | 137,318 | $27.2M | 0.04% | −69,594−33.6% | Reduced |
| Tema ETFs LLC | 133,318 | $26.4M | 1.77% | +43,400+48.3% | Added |
| GW&K Investment Management, LLC | 130,419 | $25.8M | 0.23% | −31,898−19.7% | Reduced |
| Massachusetts Financial Services Co | 123,498 | $24.5M | 0.01% | −15,499−11.2% | Reduced |
| Advisory Research Inc | 119,364 | $23.6M | 2.91% | −15,426−11.4% | Reduced |
| Franklin Resources Inc | 114,353 | $22.6M | 0.01% | +102,052+829.6% | Added |
| Northern Trust Corp | 104,880 | $20.8M | 0.00% | +3,940+3.9% | Added |
| Charles Schwab Investment Management Inc | 97,672 | $19.3M | 0.00% | −2,494−2.5% | Reduced |
| Allspring Global Investments Holdings, LLC | 94,822 | $19.3M | 0.03% | +94,796+364,600.0% | Added |
| Royce & Associates LP | 97,173 | $19.2M | 0.19% | +5,138+5.6% | Added |
| Goldman Sachs Group Inc | 84,150 | $16.7M | 0.00% | +3,158+3.9% | Added |
| Brown Advisory Inc | 82,149 | $16.3M | 0.03% | −36,074−30.5% | Reduced |
| Invesco Ltd. | 74,026 | $14.7M | 0.00% | −95,326−56.3% | Reduced |
| Vanguard Fiduciary Trust Co | 70,822 | $14.0M | 0.00% | +70,822 | New |
| Santa Monica Partners LP | 67,634 | $13.4M | 7.47% | 00.0% | Unchanged |
| Boston Partners | 65,443 | $13.0M | 0.01% | +2,800+4.5% | Added |
| Morgan Stanley | 61,252 | $12.1M | 0.00% | +19,693+47.4% | Added |
| Susquehanna International Group, LLP | 60,018 | $11.9M | 0.02% | +48,947+442.1% | Added |
| First Trust Advisors LP | 58,028 | $11.5M | 0.01% | +3,630+6.7% | Added |
| UBS Group AG | 57,231 | $11.3M | 0.00% | +10,656+22.9% | Added |
| Portolan Capital Management, LLC | 53,170 | $10.5M | 0.56% | −86,343−61.9% | Reduced |
| Bank of New York Mellon Corp | 51,236 | $10.1M | 0.00% | −2,451−4.6% | Reduced |
| Nomura Asset Management International Inc. | 50,956 | $10.1M | 0.02% | +14,105+38.3% | Added |
| Polen Capital Management LLC | 43,339 | $8.58M | 0.06% | +20,817+92.4% | Added |
| Jane Street Group, LLC | 38,350 | $7.59M | 0.01% | +38,350 | New |
| Grandeur Peak Global Advisors, LLC | 36,892 | $7.30M | 1.71% | −1,252−3.3% | Reduced |
| SEI Investments Co | 35,669 | $7.06M | 0.01% | +8,521+31.4% | Added |
| Voloridge Investment Management, LLC | 35,081 | $6.95M | 0.03% | −5,502−13.6% | Reduced |
| Raymond James Financial Inc | 34,992 | $6.93M | 0.00% | +13,916+66.0% | Added |
| Russell Investments Group, Ltd. | 34,367 | $6.80M | 0.01% | −42−0.1% | Reduced |
| LPL Financial LLC | 33,618 | $6.66M | 0.00% | +19,197+133.1% | Added |
| Arrowstreet Capital, Limited Partnership | 32,977 | $6.53M | 0.00% | −64,139−66.0% | Reduced |
| Citadel Advisors LLC | 32,527 | $6.44M | 0.00% | +28,580+724.1% | Added |
| Herald Investment Management Ltd | 30,000 | $5.94M | 0.83% | 00.0% | Unchanged |
| Victory Capital Management Inc | 29,560 | $5.85M | 0.00% | −4,449−13.1% | Reduced |
| Nitor Capital Management LLC | 25,400 | $5.03M | 3.87% | 00.0% | Unchanged |
| Investors Asset Management of Georgia Inc | 24,807 | $4.91M | 2.01% | −150−0.6% | Reduced |
| Envestnet Asset Management Inc | 24,470 | $4.84M | 0.00% | +19,672+410.0% | Added |
| EAM Investors, LLC | 24,022 | $4.76M | 0.55% | −2,459−9.3% | Reduced |
| Ballast Asset Management, LP | 23,727 | $4.70M | 2.09% | −18,281−43.5% | Reduced |
| Credit Agricole S A | 23,700 | $4.69M | 0.02% | +15,200+178.8% | Added |
| Nuveen, LLC | 22,676 | $4.49M | 0.00% | +686+3.1% | Added |
| Dean Investment Associates, LLC | 21,145 | $4.19M | 0.59% | −13,414−38.8% | Reduced |
| Swiss National Bank | 20,800 | $4.12M | 0.00% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 20,787 | $4.12M | 0.01% | −2,099−9.2% | Reduced |
| UBS Asset Management Americas Inc | 19,270 | $3.82M | 0.00% | +113+0.6% | Added |
| Emerald Investment Advisers, LLC | 19,097 | $3.78M | 0.34% | +19,097 | New |
| Creative Planning | 18,826 | $3.73M | 0.00% | +3,811+25.4% | Added |
| SG Americas Securities, LLC | 17,642 | $3.49M | 0.00% | +12,966+277.3% | Added |
| Rockefeller Capital Management L.P. | 17,272 | $3.42M | 0.01% | +17,233+44,187.2% | Added |
| Castleark Management LLC | 16,311 | $3.23M | 0.11% | −16,790−50.7% | Reduced |
| Phocas Financial Corp. | 15,277 | $3.02M | 0.47% | −7,814−33.8% | Reduced |
| Dean Capital Management | 14,847 | $2.94M | 1.22% | −8,657−36.8% | Reduced |
| Principal Financial Group Inc | 14,722 | $2.91M | 0.00% | +14,722 | New |
| O'Shaughnessy Asset Management, LLC | 14,609 | $2.89M | 0.01% | −159−1.1% | Reduced |
| Two Sigma Investments, LP | 14,584 | $2.89M | 0.00% | +14,584 | New |
| TD Asset Management Inc | 13,498 | $2.67M | 0.00% | +1,004+8.0% | Added |
| Rhumbline Advisers | 13,367 | $2.65M | 0.00% | +44+0.3% | Added |
| California State Teachers Retirement System | 13,217 | $2.62M | 0.00% | +3,585+37.2% | Added |
| North Star Investment Management Corp. | 12,550 | $2.48M | 0.15% | +12,000+2,181.8% | Added |
| Bridges Investment Management Inc | 12,425 | $2.46M | 0.03% | +12,425 | New |
| BNP Paribas Arbitrage, SA | 12,248 | $2.42M | 0.00% | +9,912+424.3% | Added |
| Qube Research & Technologies Ltd | 11,752 | $2.33M | 0.00% | −3,009−20.4% | Reduced |
| Legato Capital Management LLC | 11,514 | $2.28M | 0.21% | −889−7.2% | Reduced |
| Integrated Quantitative Investments LLC | 11,467 | $2.27M | 0.41% | +8,848+337.8% | Added |
| Expect Equity LLC | 11,061 | $2.19M | 1.70% | −7,476−40.3% | Reduced |
| Ritholtz Wealth Management | 11,016 | $2.18M | 0.04% | −276−2.4% | Reduced |
| Bank of America Corp | 10,348 | $2.05M | 0.00% | +89+0.9% | Added |
| Alliancebernstein L.P. | 11,244 | $1.91M | 0.00% | +546+5.1% | Added |
| Precision Wealth Strategies, LLC | 9,416 | $1.86M | 0.62% | +9,416 | New |
| Pinnacle Associates Ltd | 8,906 | $1.76M | 0.02% | −1,135−11.3% | Reduced |
| Deutsche Bank AG | 8,838 | $1.75M | 0.00% | +749+9.3% | Added |
| CenterBook Partners LP | 8,742 | $1.73M | 0.09% | +8,742 | New |
| Oliver Luxxe Assets LLC | 8,132 | $1.61M | 0.24% | +18+0.2% | Added |
| Legal & General Group Plc | 7,945 | $1.57M | 0.00% | −1,212−13.2% | Reduced |
| B. Metzler seel. Sohn & Co. AG | 7,634 | $1.51M | 0.01% | +2,664+53.6% | Added |
| XTX Topco Ltd | 7,415 | $1.47M | 0.03% | +7,415 | New |
| Corsair Capital Management, L.P. | 7,234 | $1.43M | 0.21% | 00.0% | Unchanged |
| Sowell Financial Services LLC | 7,214 | $1.43M | 0.05% | +7,214 | New |
| Vanguard Asset Management, Ltd | 7,060 | $1.40M | 0.00% | +7,060 | New |
| PFG Advisors | 6,945 | $1.38M | 0.07% | +289+4.3% | Added |
| Occudo Quantitative Strategies LP | 4,940 | $1.36M | 0.07% | +4,940 | New |