BELFB Institutional Ownership & Shareholders
BEL FUSE INC-CL B (BELFB) is currently held by 270 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $4.05B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of BELFB tracked by InsiderSet, reporting ownership valued at approximately $340.45M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $249.94M, representing an estimated loss of -26.59% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 50% of the total disclosed BELFB value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Price T Rowe Associates Inc, Fmr Llc, and several other long-term asset managers with concentrated positions in BEL FUSE INC-CL B (BELFB).
This page ranks the largest institutional BELFB shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
270
Total Reported Value
$4.05B
Largest Holder
Blackrock, Inc.
Largest Position
$340.45M
Insider Transactions (90d)
3
Latest Filing Quarter
Q2 2026
New Institutional Positions
90
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 1,022,258 | $340,452,807 | $249,942,081 | -$90,510,726 | -26.59% | |
| Price T Rowe Associates Inc | 0.03% | 1,015,705 | $338,272,000 | $248,339,873 | -$89,932,128 | -26.59% | |
| Fmr Llc | 0.01% | 876,104 | $291,777,707 | $214,207,428 | -$77,570,279 | -26.59% | |
| Vanguard Capital Management Llc | 0.00% | 555,463 | $184,991,398 | $135,810,704 | -$49,180,695 | -26.59% | |
| T. Rowe Price Investment Management, Inc. | 0.12% | 537,813 | $179,114,000 | $131,495,279 | -$47,618,722 | -26.59% | |
| Wasatch Advisors Lp | 1.07% | 489,414 | $162,994,439 | $119,661,723 | -$43,332,716 | -26.59% | |
| Janus Henderson Group Plc | 0.07% | 760,141 | $150,587,454 | $185,854,475 | +$35,267,021 | +23.42% | |
| Vanguard Portfolio Management Llc | 0.01% | 399,104 | $132,917,596 | $97,580,928 | -$35,336,668 | -26.59% | |
| Bank Of New York Mellon Corp | 0.02% | 389,896 | $129,850,666 | $95,329,572 | -$34,521,094 | -26.59% | |
| Geode Capital Management, Llc | 0.01% | 363,322 | $121,019,441 | $88,832,229 | -$32,187,212 | -26.60% | |
| Jennison Associates Llc | 0.06% | 292,065 | $97,269,327 | $71,409,893 | -$25,859,435 | -26.59% | |
| State Street Corp | 0.00% | 280,509 | $93,420,717 | $68,584,451 | -$24,836,267 | -26.59% | |
| Dimensional Fund Advisors Lp | 0.02% | 260,736 | $86,816,545 | $63,749,952 | -$23,066,593 | -26.57% | |
| Jpmorgan Chase & Co | 0.00% | 243,293 | $76,962,731 | $59,485,139 | -$17,477,593 | -22.71% | |
| Tidal Investments Llc | 0.17% | 211,805 | $70,539,538 | $51,786,323 | -$18,753,216 | -26.59% | |
| Renaissance Technologies LLC | Jim Simons | 0.10% | 207,741 | $69,186,063 | $50,792,675 | -$18,393,389 | -26.59% |
| Tema Etfs Llc | 2.18% | 202,849 | $67,556,831 | $49,596,581 | -$17,960,251 | -26.59% | |
| Westwood Holdings Group Inc | 0.49% | 194,237 | $64,688,689 | $47,490,947 | -$17,197,743 | -26.59% | |
| Fisher Asset Management, Llc | 0.02% | 190,776 | $63,536,056 | $46,644,732 | -$16,891,324 | -26.59% | |
| Allspring Global Investments Holdings, Llc | 0.10% | 198,405 | $63,104,695 | $48,510,023 | -$14,594,673 | -23.13% | |
| Congress Asset Management Co | 0.41% | 258,484 | $63,101,142 | $63,199,338 | +$98,196 | +0.16% | |
| Lord, Abbett & Co. Llc | 0.18% | 189,280 | $63,038,000 | $46,278,960 | -$16,759,040 | -26.59% | |
| Bessemer Group Inc | 0.07% | 158,132 | $52,664,000 | $38,663,274 | -$14,000,726 | -26.59% | |
| Nomura Asset Management International Inc. | 0.07% | 142,840 | $47,571,000 | $34,924,380 | -$12,646,620 | -26.58% | |
| Northern Trust Corp | 0.00% | 124,169 | $41,353,245 | $30,359,321 | -$10,993,925 | -26.59% | |
| Advisory Research Inc | 3.92% | 117,896 | $39,264,084 | $28,825,572 | -$10,438,512 | -26.59% | |
| Charles Schwab Investment Management Inc | 0.00% | 112,609 | $37,503,301 | $27,532,901 | -$9,970,401 | -26.59% | |
| Thrivent Financial For Lutherans | 0.06% | 111,726 | $37,200,000 | $27,317,007 | -$9,882,993 | -26.57% | |
| Invesco Ltd. | 0.00% | 105,254 | $35,053,792 | $25,734,603 | -$9,319,189 | -26.59% | |
| Loomis Sayles & Co L P | 0.04% | 101,031 | $33,647,364 | $24,702,080 | -$8,945,285 | -26.59% | |
| Gw&K Investment Management, Llc | 0.25% | 97,377 | $32,430,000 | $23,808,677 | -$8,621,324 | -26.58% | |
| Alyeska Investment Group, L.P. | 0.08% | 91,478 | $30,465,833 | $22,366,371 | -$8,099,462 | -26.59% | |
| Vanguard Fiduciary Trust Co | 0.01% | 88,091 | $29,337,827 | $21,538,250 | -$7,799,578 | -26.59% | |
| Royce & Associates Lp | 0.23% | 87,078 | $29,000,457 | $21,290,571 | -$7,709,886 | -26.59% | |
| Daiwa Securities Group Inc. | 0.07% | 86,566 | $28,829,941 | $21,165,387 | -$7,664,554 | -26.59% | |
| Susquehanna International Group, Llp | 0.02% | 78,987 | $26,305,830 | $19,312,322 | -$6,993,509 | -26.59% | |
| Boston Partners | 0.02% | 78,597 | $26,175,940 | $19,216,967 | -$6,958,974 | -26.59% | |
| Ameriprise Financial Inc | 0.01% | 77,120 | $25,684,045 | $18,855,840 | -$6,828,205 | -26.59% | |
| Jane Street Group, Llc | 0.02% | 74,187 | $24,707,239 | $18,138,722 | -$6,568,518 | -26.59% | |
| Goldman Sachs Group Inc | 0.00% | 70,160 | $23,365,997 | $17,154,120 | -$6,211,877 | -26.59% | |
| Morgan Stanley | 0.00% | 62,302 | $20,749,893 | $15,232,839 | -$5,517,054 | -26.59% | |
| Bank Of America Corp | 0.00% | 61,539 | $20,494,948 | $15,046,286 | -$5,448,663 | -26.59% | |
| Marshall Wace, Llp | 0.02% | 59,577 | $19,841,525 | $14,566,577 | -$5,274,949 | -26.59% | |
| Raymond James Financial Inc | 0.01% | 57,422 | $19,123,828 | $14,039,679 | -$5,084,149 | -26.59% | |
| First Trust Advisors Lp | 0.01% | 56,647 | $18,865,716 | $13,850,192 | -$5,015,525 | -26.59% | |
| Portolan Capital Management, Llc | 0.60% | 47,856 | $15,937,962 | $11,700,792 | -$4,237,170 | -26.59% | |
| Ubs Group Ag | 0.00% | 41,117 | $13,693,605 | $10,053,107 | -$3,640,499 | -26.59% | |
| Russell Investments Group, Ltd. | 0.01% | 39,306 | $13,090,786 | $9,610,317 | -$3,480,469 | -26.59% | |
| Envestnet Asset Management Inc | 0.00% | 37,492 | $12,486,501 | $9,166,794 | -$3,319,707 | -26.59% | |
| Sei Investments Co | 0.01% | 37,288 | $12,418,417 | $9,116,916 | -$3,301,501 | -26.59% |
Frequently asked questions about BELFB
Who are the largest institutional holders of BELFB?
The largest institutional holders of BELFB reported in the latest SEC Form 13F filings include Blackrock, Inc., Price T Rowe Associates Inc, Fmr Llc, Vanguard Capital Management Llc, and T. Rowe Price Investment Management, Inc.. InsiderSet ranks institutional holders by their latest reported BELFB position.
What is BELFB institutional ownership?
This page tracks BELFB positions reported by institutional investment managers through SEC Form 13F. BEL FUSE INC-CL B (BELFB) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own BELFB?
InsiderSet currently tracks 270 institutional managers reporting BELFB holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of BELFB shareholders.
How much BELFB stock do institutions own?
Institutional investment managers disclosed approximately $4.05B in BELFB holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was BELFB institutional ownership last updated?
The latest BELFB institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional BELFB holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its BELFB position after the reporting date.
Are institutions buying or selling BELFB?
Institutional buying and selling can be analyzed by comparing BELFB positions across consecutive 13F reporting periods. InsiderSet's BELFB Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View BELFB ownership changes.
How has BELFB institutional ownership changed over time?
InsiderSet tracks BELFB institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.