BEL FUSE INC-CL B (BELFB) Top 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 March 31, 2026. The institutional investors covered on this page collectively reported approximately $1.59B 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 $167.67M in its March 31, 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 $253.94M, representing an estimated gain of +51.45% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 57% of the total disclosed BELFB value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Janus Henderson Group Plc, 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
230
Total Reported Value
$1.59B
Largest Holder
Blackrock, Inc.
Largest Position
$167.67M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
156
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 846,920 | $167,673,222 | $253,940,493 | +$86,267,271 | +51.45% | |
| Janus Henderson Group Plc | 0.07% | 760,141 | $150,587,454 | $227,920,677 | +$77,333,223 | +51.35% | |
| Fmr Llc | 0.01% | 631,307 | $124,986,171 | $189,291,091 | +$64,304,920 | +51.45% | |
| Vanguard Capital Management Llc | 0.00% | 489,081 | $96,828,256 | $146,646,047 | +$49,817,791 | +51.45% | |
| Wasatch Advisors Lp | 0.63% | 478,709 | $94,774,808 | $143,536,107 | +$48,761,299 | +51.45% | |
| Vanguard Portfolio Management Llc | 0.00% | 329,461 | $65,226,689 | $98,785,586 | +$33,558,897 | +51.45% | |
| Geode Capital Management, Llc | 0.00% | 308,048 | $60,998,131 | $92,365,112 | +$31,366,981 | +51.42% | |
| Dimensional Fund Advisors Lp | 0.01% | 256,833 | $50,850,564 | $77,008,807 | +$26,158,243 | +51.44% | |
| State Street Corp | 0.00% | 242,454 | $48,001,043 | $72,697,407 | +$24,696,364 | +51.45% | |
| Fisher Asset Management, Llc | 0.01% | 215,648 | $42,694,000 | $64,659,896 | +$21,965,896 | +51.45% | |
| Renaissance Technologies LLC | Jim Simons | 0.07% | 213,872 | $42,342,379 | $64,127,380 | +$21,785,001 | +51.45% |
| Loomis Sayles & Co L P | 0.04% | 145,648 | $28,835,391 | $43,671,096 | +$14,835,705 | +51.45% | |
| Tidal Investments Llc | 0.09% | 141,791 | $28,071,782 | $42,514,613 | +$14,442,831 | +51.45% | |
| Tema Etfs Llc | 1.77% | 133,318 | $26,394,298 | $39,974,069 | +$13,579,771 | +51.45% | |
| Massachusetts Financial Services Co | 0.01% | 123,498 | $24,450,134 | $37,029,640 | +$12,579,506 | +51.45% | |
| Advisory Research Inc | 2.91% | 119,364 | $23,631,685 | $35,790,102 | +$12,158,417 | +51.45% | |
| Franklin Resources Inc | 0.01% | 114,353 | $22,639,606 | $34,287,604 | +$11,647,998 | +51.45% | |
| Northern Trust Corp | 0.00% | 104,880 | $20,764,142 | $31,447,219 | +$10,683,077 | +51.45% | |
| Charles Schwab Investment Management Inc | 0.00% | 97,672 | $19,337,103 | $29,285,972 | +$9,948,869 | +51.45% | |
| Allspring Global Investments Holdings, Llc | 0.03% | 94,822 | $19,252,658 | $28,431,428 | +$9,178,770 | +47.68% | |
| Royce & Associates Lp | 0.19% | 97,173 | $19,238,311 | $29,136,352 | +$9,898,041 | +51.45% | |
| Goldman Sachs Group Inc | 0.00% | 84,150 | $16,660,017 | $25,231,536 | +$8,571,519 | +51.45% | |
| Brown Advisory Inc | 0.03% | 82,149 | $16,263,825 | $24,631,556 | +$8,367,731 | +51.45% | |
| Invesco Ltd. | 0.00% | 74,026 | $14,655,667 | $22,195,956 | +$7,540,289 | +51.45% | |
| Vanguard Fiduciary Trust Co | 0.00% | 70,822 | $14,021,340 | $21,235,268 | +$7,213,928 | +51.45% | |
| Boston Partners | 0.01% | 65,443 | $12,956,410 | $19,622,429 | +$6,666,019 | +51.45% | |
| Morgan Stanley | 0.00% | 61,252 | $12,126,694 | $18,365,800 | +$6,239,106 | +51.45% | |
| Susquehanna International Group, Llp | 0.02% | 60,018 | $11,882,364 | $17,995,797 | +$6,113,433 | +51.45% | |
| First Trust Advisors Lp | 0.01% | 58,028 | $11,488,383 | $17,399,116 | +$5,910,733 | +51.45% | |
| Ubs Group Ag | 0.00% | 57,231 | $11,330,594 | $17,160,143 | +$5,829,549 | +51.45% | |
| Portolan Capital Management, Llc | 0.56% | 53,170 | $10,526,597 | $15,942,493 | +$5,415,896 | +51.45% | |
| Bank Of New York Mellon Corp | 0.00% | 51,236 | $10,143,708 | $15,362,602 | +$5,218,894 | +51.45% | |
| Nomura Asset Management International Inc. | 0.02% | 50,956 | $10,088,000 | $15,278,647 | +$5,190,647 | +51.45% | |
| Polen Capital Management | David M. Polen | 0.06% | 43,339 | $8,580,255 | $12,994,766 | +$4,414,511 | +51.45% |
| Jane Street Group, Llc | 0.01% | 38,350 | $7,592,533 | $11,498,864 | +$3,906,331 | +51.45% | |
| Grandeur Peak Global Advisors, Llc | 1.71% | 36,892 | $7,303,878 | $11,061,697 | +$3,757,819 | +51.45% | |
| Sei Investments Co | 0.01% | 35,669 | $7,061,744 | $10,694,993 | +$3,633,249 | +51.45% | |
| Voloridge Investment Management, Llc | 0.03% | 35,081 | $6,945,336 | $10,518,687 | +$3,573,351 | +51.45% | |
| Raymond James Financial Inc | 0.00% | 34,992 | $6,927,706 | $10,492,001 | +$3,564,295 | +51.45% | |
| Russell Investments Group, Ltd. | 0.01% | 34,367 | $6,803,977 | $10,304,601 | +$3,500,624 | +51.45% | |
| Lpl Financial Llc | 0.00% | 33,618 | $6,655,782 | $10,080,021 | +$3,424,239 | +51.45% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 32,977 | $6,528,786 | $9,887,824 | +$3,359,038 | +51.45% | |
| Citadel Advisors Llc | 0.00% | 32,527 | $6,439,695 | $9,752,896 | +$3,313,201 | +51.45% | |
| Herald Investment Management Ltd | 0.83% | 30,000 | $5,939,700 | $8,995,200 | +$3,055,500 | +51.44% | |
| Victory Capital Management Inc | 0.00% | 29,560 | $5,852,289 | $8,863,270 | +$3,010,981 | +51.45% | |
| Nitor Capital Management Llc | 3.87% | 25,400 | $5,028,692 | $7,615,936 | +$2,587,244 | +51.45% | |
| Investors Asset Management Of Georgia Inc | 2.01% | 24,807 | $4,911,387 | $7,438,131 | +$2,526,744 | +51.45% | |
| Envestnet Asset Management Inc | 0.00% | 24,470 | $4,844,639 | $7,337,085 | +$2,492,446 | +51.45% | |
| Informed Momentum Co Llc | 0.55% | 24,022 | $4,755,876 | $7,202,756 | +$2,446,880 | +51.45% | |
| Ballast Asset Management, Lp | 2.09% | 23,727 | $4,697,471 | $7,114,304 | +$2,416,833 | +51.45% |
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.