BEL FUSE INC-CL B (BELFB) Institutional Shareholders
BEL FUSE INC-CL B (BELFB) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $3.99B in BELFB holdings during the latest filing period.
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 $247.36M, representing an estimated loss of -27.35% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 51% 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
269
Total Reported Value
$3.99B
Largest Holder
Blackrock, Inc.
Largest Position
$340.45M
Insider Transactions (90d)
3
Latest Filing Quarter
Q2 2026
New Institutional Positions
91
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 | $247,355,768 | -$93,097,039 | -27.35% | |
| Price T Rowe Associates Inc | 0.03% | 1,015,705 | $338,272,000 | $245,770,139 | -$92,501,861 | -27.35% | |
| Fmr Llc | 0.01% | 876,104 | $291,777,707 | $211,990,885 | -$79,786,822 | -27.35% | |
| Vanguard Capital Management Llc | 0.00% | 555,463 | $184,991,398 | $134,405,382 | -$50,586,016 | -27.35% | |
| T. Rowe Price Investment Management, Inc. | 0.12% | 537,813 | $179,114,000 | $130,134,612 | -$48,979,388 | -27.35% | |
| Wasatch Advisors Lp | 1.07% | 489,414 | $162,994,439 | $118,423,506 | -$44,570,933 | -27.35% | |
| Janus Henderson Group Plc | 0.07% | 760,141 | $150,587,454 | $183,931,318 | +$33,343,864 | +22.14% | |
| Vanguard Portfolio Management Llc | 0.01% | 399,104 | $132,917,596 | $96,571,195 | -$36,346,401 | -27.35% | |
| Bank Of New York Mellon Corp | 0.02% | 389,896 | $129,850,666 | $94,343,135 | -$35,507,531 | -27.34% | |
| Geode Capital Management, Llc | 0.01% | 363,322 | $121,019,441 | $87,913,024 | -$33,106,417 | -27.36% | |
| Jennison Associates Llc | 0.06% | 292,065 | $97,269,327 | $70,670,968 | -$26,598,359 | -27.35% | |
| State Street Corp | 0.00% | 280,509 | $93,420,717 | $67,874,763 | -$25,545,954 | -27.35% | |
| Dimensional Fund Advisors Lp | 0.02% | 260,736 | $86,816,545 | $63,090,290 | -$23,726,255 | -27.33% | |
| Jpmorgan Chase & Co | 0.00% | 243,293 | $76,962,731 | $58,869,607 | -$18,093,124 | -23.51% | |
| Tidal Investments Llc | 0.17% | 211,805 | $70,539,538 | $51,250,456 | -$19,289,082 | -27.35% | |
| Renaissance Technologies LLC | Jim Simons | 0.10% | 207,741 | $69,186,063 | $50,267,090 | -$18,918,973 | -27.35% |
| Tema Etfs Llc | 2.18% | 202,849 | $67,556,831 | $49,083,373 | -$18,473,458 | -27.35% | |
| Westwood Holdings Group Inc | 0.49% | 194,237 | $64,688,689 | $46,999,527 | -$17,689,162 | -27.35% | |
| Fisher Asset Management, Llc | 0.02% | 190,776 | $63,536,056 | $46,162,069 | -$17,373,987 | -27.35% | |
| Allspring Global Investments Holdings, Llc | 0.10% | 198,405 | $63,104,695 | $48,008,058 | -$15,096,637 | -23.92% | |
| Lord, Abbett & Co. Llc | 0.18% | 189,280 | $63,038,000 | $45,800,082 | -$17,237,918 | -27.35% | |
| Bessemer Group Inc | 0.07% | 158,132 | $52,664,000 | $38,263,200 | -$14,400,800 | -27.34% | |
| Nomura Asset Management International Inc. | 0.07% | 142,840 | $47,571,000 | $34,562,995 | -$13,008,005 | -27.34% | |
| Northern Trust Corp | 0.00% | 124,169 | $41,353,245 | $30,045,173 | -$11,308,072 | -27.35% | |
| Advisory Research Inc | 3.92% | 117,896 | $39,264,084 | $28,527,295 | -$10,736,789 | -27.35% | |
| Charles Schwab Investment Management Inc | 0.00% | 112,609 | $37,503,301 | $27,248,000 | -$10,255,301 | -27.35% | |
| Thrivent Financial For Lutherans | 0.06% | 111,726 | $37,200,000 | $27,034,340 | -$10,165,660 | -27.33% | |
| Invesco Ltd. | 0.00% | 105,254 | $35,053,792 | $25,468,310 | -$9,585,482 | -27.35% | |
| Loomis Sayles & Co L P | 0.04% | 101,031 | $33,647,364 | $24,446,471 | -$9,200,893 | -27.35% | |
| Gw&K Investment Management, Llc | 0.25% | 97,377 | $32,430,000 | $23,562,313 | -$8,867,687 | -27.34% | |
| Alyeska Investment Group, L.P. | 0.08% | 91,478 | $30,465,833 | $22,134,932 | -$8,330,901 | -27.35% | |
| Vanguard Fiduciary Trust Co | 0.01% | 88,091 | $29,337,827 | $21,315,379 | -$8,022,448 | -27.35% | |
| Royce & Associates Lp | 0.23% | 87,078 | $29,000,457 | $21,070,264 | -$7,930,193 | -27.35% | |
| Daiwa Securities Group Inc. | 0.07% | 86,566 | $28,829,941 | $20,946,375 | -$7,883,566 | -27.35% | |
| Susquehanna International Group, Llp | 0.02% | 78,987 | $26,305,830 | $19,112,484 | -$7,193,346 | -27.35% | |
| Boston Partners | 0.02% | 78,597 | $26,175,940 | $19,018,116 | -$7,157,824 | -27.35% | |
| Ameriprise Financial Inc | 0.01% | 77,120 | $25,684,045 | $18,660,726 | -$7,023,319 | -27.35% | |
| Jane Street Group, Llc | 0.02% | 74,187 | $24,707,239 | $17,951,028 | -$6,756,211 | -27.35% | |
| Goldman Sachs Group Inc | 0.00% | 70,160 | $23,365,997 | $16,976,615 | -$6,389,382 | -27.34% | |
| Morgan Stanley | 0.00% | 62,302 | $20,749,893 | $15,075,215 | -$5,674,678 | -27.35% | |
| Bank Of America Corp | 0.00% | 61,539 | $20,494,948 | $14,890,592 | -$5,604,356 | -27.35% | |
| Marshall Wace, Llp | 0.02% | 59,577 | $19,841,525 | $14,415,847 | -$5,425,678 | -27.35% | |
| Raymond James Financial Inc | 0.01% | 57,422 | $19,123,828 | $13,894,401 | -$5,229,427 | -27.35% | |
| First Trust Advisors Lp | 0.01% | 56,647 | $18,865,716 | $13,706,875 | -$5,158,841 | -27.35% | |
| Portolan Capital Management, Llc | 0.60% | 47,856 | $15,937,962 | $11,579,716 | -$4,358,246 | -27.35% | |
| Ubs Group Ag | 0.00% | 41,117 | $13,693,605 | $9,949,080 | -$3,744,525 | -27.35% | |
| Russell Investments Group, Ltd. | 0.01% | 39,306 | $13,090,786 | $9,510,873 | -$3,579,913 | -27.35% | |
| Envestnet Asset Management Inc | 0.00% | 37,492 | $12,486,501 | $9,071,939 | -$3,414,562 | -27.35% | |
| Sei Investments Co | 0.01% | 37,288 | $12,418,417 | $9,022,577 | -$3,395,840 | -27.35% | |
| Lpl Financial Llc | 0.00% | 36,129 | $12,032,347 | $8,742,134 | -$3,290,213 | -27.34% |
Frequently asked questions about BELFB
Who owns the most BELFB stock?
The largest holders of BELFB are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for BEL FUSE INC-CL B (BELFB).
Is BELFB widely held by superinvestors?
Many widely followed stocks like BELFB appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly BELFB is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.