BEL FUSE INC BELFA
CL A · Common Stock · CUSIP 077347201
- SectorTechnology
- IndustryElectronic Coils, Transformers & Other Inductors
- HeadquartersWest Orange, NJ
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($119.1k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $291.34.
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 17 |
| Q4 2022 | 18 |
| Q1 2023 | 20 |
| Q2 2023 | 26 |
| Q3 2023 | 26 |
| Q4 2023 | 27 |
| Q1 2024 | 33 |
| Q2 2024 | 41 |
| Q3 2024 | 55 |
| Q4 2024 | 57 |
| Q1 2025 | 57 |
| Q2 2025 | 60 |
| Q3 2025 | 64 |
| Q4 2025 | 77 |
| Q1 2026 | 96 |
| Q2 2026 | 110 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 30 | 13 |
| Q4 2024 | 23 | 20 |
| Q1 2025 | 19 | 26 |
| Q2 2025 | 21 | 27 |
| Q3 2025 | 29 | 27 |
| Q4 2025 | 37 | 29 |
| Q1 2026 | 51 | 32 |
| Q2 2026 | 69 | 42 |
Biggest buyers
| MANGROVE PARTNERS IM, LLC | Added | +103.4k |
| Logan Stone Capital, LLC | New | +54.0k |
| MARSHALL WACE, LLP | Added | +41.7k |
| BANK OF AMERICA CORP /DE/ | Added | +38.4k |
| Qube Research & Technologies Ltd | Added | +33.3k |
| STATE STREET CORP | Added | +15.9k |
| VANGUARD CAPITAL MANAGEMENT LLC | Added | +13.1k |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Added | +11.5k |
| VANGUARD ASSET MANAGEMENT, Ltd | New | +11.3k |
| BlackRock, Inc. | Added | +9.0k |
Biggest sellers
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | Sold out | -138.5k |
| JANE STREET GROUP, LLC | Sold out | -13.2k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | -9.8k |
| BROWN ADVISORY INC | Reduced | -8.5k |
| FMR LLC | Reduced | -7.4k |
| Hound Partners, LLC | Reduced | -6.8k |
| SEI INVESTMENTS CO | Reduced | -4.9k |
| Sagefield Capital LP | Sold out | -4.4k |
| Trexquant Investment LP | Sold out | -3.0k |
| MORGAN STANLEY | Reduced | -2.8k |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
No one currently above 5% in the filings since 19 Dec 2024.
Fell to 5% or below in the last year: HIGHBRIDGE CAPITAL MANAGEMENT LLC (0.0%, 2026-08-14), BARCLAYS PLC (1.7%, 2026-08-13), GAMCO INVESTORS, INC. ET AL (3.0%, 2026-01-28)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 2 | $196.8k | — |
| Q1 2025 | 0 | — | 1 | $14.7k | — |
| Q2 2025 | 0 | — | 2 | $774.0k | — |
| Q3 2025 | 0 | — | 2 | $395.7k | — |
| Q4 2025 | 0 | — | 4 | $1.7m | — |
| Q1 2026 | 0 | — | 7 | $15.7m | — |
| Q2 2026 | 0 | — | 1 | $198.2k | — |
| Q3 2026 | 0 | — | 2 | $476.9k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-14 | Vellucci Vincent Director | Sold | $235.2k1.0k shares |
| 2026-09-02 | Vellucci Vincent Director | Sold | $95.7k393 shares |
| 2026-08-12 | GILBERT PETER E Director · By wife | Sold | $146.1k500 shares |
| 2026-06-01 | Kozlovsky Suzanne Global Head of People | Sold | $198.2k731 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BROWN ADVISORY INC 0.06% of their portfolio | 126.0k $36.7m | Reduced -8.5k |
| MANGROVE PARTNERS IM, LLC 2.00% of their portfolio | 104.7k $30.5m | Added +103.4k |
| BlackRock, Inc. 0.00% of their portfolio | 100.2k $29.2m | Added +9.0k |
| FMR LLC 0.00% of their portfolio | 70.2k $20.4m | Reduced -7.4k |
| RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio | 65.6k $19.1m | Reduced -2.7k |
| GABELLI FUNDS LLC 0.12% of their portfolio | 63.3k $18.4m | Reduced -300 |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 58.6k $17.1m | Added +13.1k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 57.8k $16.8m | Added +11.5k |
| Logan Stone Capital, LLC 3.32% of their portfolio | 54.0k $15.7m | New |
| GAMCO INVESTORS, INC. ET AL 0.14% of their portfolio | 53.0k $15.4m | Reduced -200 |
| MARSHALL WACE, LLP 0.01% of their portfolio | 51.3k $14.9m | Added +41.7k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 46.9k $13.7m | Added +2.0k |
| Cable Car Capital, LP 0.59% of their portfolio | 46.5k $13.5m | Reduced -300 |
| STATE STREET CORP 0.00% of their portfolio | 44.7k $13.0m | Added +15.9k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 42.5k $12.4m | Added +33.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 40.4k $11.8m | Added +5.6k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 40.2k $11.7m | Added +38.4k |
| Hound Partners, LLC 0.95% of their portfolio | 28.0k $8.2m | Reduced -6.8k |
| INVESTORS ASSET MANAGEMENT OF GEORGIA INC /GA/ /ADV 2.54% of their portfolio | 25.1k $7.3m | Reduced -675 |
| SANTA MONICA PARTNERS LP 3.68% of their portfolio | 23.4k $6.8m | Unchanged |
| BRASADA CAPITAL MANAGEMENT, LP 0.88% of their portfolio | 16.7k $4.9m | Reduced -1.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 14.2k $4.1m | Added +2.5k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 11.3k $3.3m | New |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 10.2k $3.0m | Added +3.4k |
| Janney Montgomery Scott LLC 0.01% of their portfolio | 9.1k $2.7m | Reduced -420 |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 9.0k $2.6m | Added +3.8k |
| CITIGROUP INC 0.00% of their portfolio | 8.5k $2.5m | Added +5.2k |
| Nitor Capital Management LLC 1.38% of their portfolio | 7.0k $2.0m | Unchanged |
| Triasima Portfolio Management inc. 0.27% of their portfolio | 6.9k $2.0m | Added +5.2k |
| UBS Group AG 0.00% of their portfolio | 5.7k $1.6m | Reduced -1.5k |
| Man Group plc 0.00% of their portfolio | 5.5k $1.6m | New |
| HERALD INVESTMENT MANAGEMENT Ltd 0.20% of their portfolio | 5.0k $1.5m | Unchanged |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 4.9k $1.5m | New |
| SEI INVESTMENTS CO 0.00% of their portfolio | 4.7k $1.4m | Reduced -4.9k |
| MORGAN STANLEY 0.00% of their portfolio | 4.7k $1.4m | Reduced -2.8k |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 4.5k $1.3m | Added +785 |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 4.5k $1.3m | Added +3.2k |
| PenderFund Capital Management Ltd. 0.15% of their portfolio | 4.1k $1.2m | Added +1.4k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 4.1k $1.2m | Reduced -74 |
| GLOBEFLEX CAPITAL L P 0.13% of their portfolio | 3.5k $1.0m | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 3.3k $963.4k | Added +2.0k |
| Quantbot Technologies LP 0.04% of their portfolio | 3.1k $901.9k | Added +2.6k |
| State of Wyoming 0.09% of their portfolio | 3.0k $875.7k | New |
| Swiss National Bank 0.00% of their portfolio | 3.0k $873.7k | New |
| STRS OHIO 0.00% of their portfolio | 2.8k $815.4k | Added +600 |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 2.7k $778.7k | Reduced -66 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 2.6k $752.2k | Reduced -9.8k |
| XTX Topco Ltd 0.01% of their portfolio | 2.6k $746.4k | Reduced -2.7k |
| Allspring Global Investments Holdings, LLC 0.00% of their portfolio | 2.5k $709.0k | Added +1.5k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 2.3k $671.9k | Added +2.2k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 2.3k $670.4k | Reduced -1.4k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 2.2k $650.9k | Added +2 |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 1.9k $565.0k | New |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.04% of their portfolio | 1.9k $548.4k | Reduced -693 |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 1.8k $523.9k | Added +1.5k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 1.7k $508.5k | Added +1.1k |
| Altshuler Shaham Ltd 0.01% of their portfolio | 1.7k $632.0k | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 1.4k $411.0k | Added +291 |
| Invesco Ltd. 0.00% of their portfolio | 1.4k $394.6k | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.3k $385.1k | Reduced -2.0k |
| FNY Investment Advisers, LLC 0.13% of their portfolio | 1.2k $360.0k | Added +179 |
| Abel Hall, LLC 0.06% of their portfolio | 1.2k $336.7k | Added +18 |
| Algorithmic Investment Models, LLC 0.38% of their portfolio | 1.1k $325.9k | New |
| Americana Partners, LLC 0.01% of their portfolio | 1.1k $320.6k | New |
| Jupiter Topco LLC 0.00% of their portfolio | 1.1k $320.0k | First filing |
| MetLife Investment Management, LLC 0.00% of their portfolio | 1.1k $310.7k | Added +14 |
| Virtu Financial LLC 0.01% of their portfolio | 945 $275.0k | New |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 929 $270.6k | Added +759 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 900 $262.1k | Unchanged |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.00% of their portfolio | 893 $260.1k | New |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 865 $251.9k | New |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.01% of their portfolio | 797 $232.1k | New |
| Schonfeld Strategic Advisors LLC 0.00% of their portfolio | 796 $231.8k | New |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 781 $227.5k | Reduced -22 |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% of their portfolio | 710 $206.8k | New |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 503 $146.5k | Reduced -60 |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 503 $146.5k | Unchanged |
| BLAIR WILLIAM & CO/IL 0.00% of their portfolio | 501 $145.9k | Added +1 |
| Legal & General Group Plc 0.00% of their portfolio | 487 $141.8k | Added +342 |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 456 $132.8k | Reduced -2.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 394 $114.7k | Unchanged |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 366 $106.6k | Reduced -66 |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 305 $88.8k | Unchanged |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 304 $88.5k | Added +273 |
| KLP KAPITALFORVALTNING AS 0.00% of their portfolio | 300 $87.4k | New |
| BARCLAYS PLC 0.00% of their portfolio | 260 $75.7k | Reduced -62 |
| Global Retirement Partners, LLC 0.00% of their portfolio | 250 $72.8k | First filing |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.00% of their portfolio | 200 $58.2k | New |
| Covestor Ltd 0.03% of their portfolio | 159 $46.0k | Added +159 |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 134 $39.0k | Reduced -37 |
| GAMMA Investing LLC 0.00% of their portfolio | 107 $31.2k | Added +11 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 58 $17.0k | Added +38 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.00% of their portfolio | 44 $12.8k | New |
| Caitong International Asset Management Co., Ltd 0.00% of their portfolio | 41 $11.9k | New |
| IFP Advisors, Inc 0.00% of their portfolio | 26 $7.6k | Reduced -250 |
| Arax Advisory Partners 0.00% of their portfolio | 16 $4.7k | New |
| Integrated Wealth Concepts LLC 0.00% of their portfolio | 14 $4.1k | New |
| Optiver Holding B.V. 0.00% of their portfolio | 14 $4.1k | Reduced -8 |
| ExodusPoint Capital Management, LP 0.00% of their portfolio | 13 $3.8k | New |
| EverSource Wealth Advisors, LLC 0.00% of their portfolio | 9 $2.6k | Added +7 |