BELFA Institutional Ownership & Shareholders
BEL FUSE INC-CL A (BELFA) is currently held by 107 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $382.61M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Brown Advisory Inc is currently the largest disclosed institutional shareholder of BELFA tracked by InsiderSet, reporting ownership valued at approximately $36.68M 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 $23.79M, representing an estimated loss of -35.14% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 57% of the total disclosed BELFA value among the investors covered in this analysis. Major shareholders include Brown Advisory Inc, Mangrove Partners Im, Llc, Blackrock, Inc., and several other long-term asset managers with concentrated positions in BEL FUSE INC-CL A (BELFA).
This page ranks the largest institutional BELFA 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
107
Total Reported Value
$382.61M
Largest Holder
Brown Advisory Inc
Largest Position
$36.68M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
128
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Brown Advisory Inc | 0.06% | 125,953 | $36,681,407 | $23,792,522 | -$12,888,885 | -35.14% | |
| Mangrove Partners Im, Llc | 2.00% | 104,706 | $30,493,528 | $19,778,963 | -$10,714,565 | -35.14% | |
| Blackrock, Inc. | 0.00% | 100,164 | $29,170,763 | $18,920,980 | -$10,249,783 | -35.14% | |
| Fmr Llc | 0.00% | 70,155 | $20,431,159 | $13,252,280 | -$7,178,880 | -35.14% | |
| Renaissance Technologies LLC | Jim Simons | 0.03% | 65,553 | $19,091,000 | $12,382,962 | -$6,708,038 | -35.14% |
| Gabelli Funds Llc | 0.12% | 63,300 | $18,434,859 | $11,957,370 | -$6,477,489 | -35.14% | |
| Vanguard Capital Management Llc | 0.00% | 58,582 | $17,060,836 | $11,066,140 | -$5,994,696 | -35.14% | |
| Vanguard Portfolio Management Llc | 0.00% | 57,786 | $16,829,017 | $10,915,775 | -$5,913,242 | -35.14% | |
| Logan Stone Capital, Llc | 3.32% | 54,020 | $15,732,245 | $10,204,378 | -$5,527,867 | -35.14% | |
| Gamco Investors, Inc. Et Al | 0.14% | 53,000 | $15,435,190 | $10,011,700 | -$5,423,490 | -35.14% | |
| Marshall Wace, Llp | 0.01% | 51,332 | $14,949,418 | $9,696,615 | -$5,252,803 | -35.14% | |
| Dimensional Fund Advisors Lp | 0.00% | 46,937 | $13,669,463 | $8,866,399 | -$4,803,064 | -35.14% | |
| Cable Car Capital, Lp | 0.29% | 46,463 | $13,531,419 | $8,776,861 | -$4,754,558 | -35.14% | |
| State Street Corp | 0.00% | 44,736 | $13,028,465 | $8,450,630 | -$4,577,835 | -35.14% | |
| Qube Research & Technologies Ltd | 0.01% | 42,480 | $12,371,450 | $8,024,472 | -$4,346,978 | -35.14% | |
| Geode Capital Management, Llc | 0.00% | 40,374 | $11,761,042 | $7,626,649 | -$4,134,393 | -35.15% | |
| Bank Of America Corp | 0.00% | 40,177 | $11,700,747 | $7,589,435 | -$4,111,312 | -35.14% | |
| Hound Partners, Llc | 0.95% | 28,048 | $8,168,419 | $5,298,267 | -$2,870,152 | -35.14% | |
| Investors Asset Management Of Georgia Inc | 1.78% | 24,806 | $4,904,890 | $4,685,853 | -$219,037 | -4.47% | |
| Brasada Capital Management, Lp | 0.88% | 16,695 | $4,862,085 | $3,153,686 | -$1,708,400 | -35.14% | |
| Northern Trust Corp | 0.00% | 14,237 | $4,146,241 | $2,689,369 | -$1,456,872 | -35.14% | |
| Vanguard Asset Management, Ltd | 0.00% | 11,344 | $3,303,713 | $2,142,882 | -$1,160,831 | -35.14% | |
| Vanguard Fiduciary Trust Co | 0.00% | 10,153 | $2,956,858 | $1,917,902 | -$1,038,956 | -35.14% | |
| Janney Montgomery Scott Llc | 0.01% | 9,136 | $2,661,000 | $1,725,790 | -$935,210 | -35.15% | |
| Goldman Sachs Group Inc | 0.00% | 9,031 | $2,630,099 | $1,705,956 | -$924,143 | -35.14% | |
| Citigroup Inc | 0.00% | 8,540 | $2,487,104 | $1,613,206 | -$873,898 | -35.14% | |
| Nitor Capital Management Llc | 1.38% | 7,000 | $2,038,610 | $1,322,300 | -$716,310 | -35.14% | |
| Transmarket Holdings Lp | 1.11% | 10,022 | $1,981,650 | $1,893,156 | -$88,494 | -4.47% | |
| Ubs Group Ag | 0.00% | 5,658 | $1,647,780 | $1,068,796 | -$578,984 | -35.14% | |
| Man Group Plc | 0.00% | 5,455 | $1,588,660 | $1,030,450 | -$558,211 | -35.14% | |
| Ameriprise Financial Inc | 0.00% | 4,941 | $1,467,800 | $933,355 | -$534,445 | -36.41% | |
| Sei Investments Co | 0.00% | 4,737 | $1,379,557 | $894,819 | -$484,738 | -35.14% | |
| Morgan Stanley | 0.00% | 4,684 | $1,364,247 | $884,808 | -$479,439 | -35.14% | |
| Moran Wealth Management, Llc | 0.04% | 6,723 | $1,329,339 | $1,269,975 | -$59,364 | -4.47% | |
| Point72 Asset Management, L.P. | 0.00% | 4,533 | $1,320,146 | $856,284 | -$463,862 | -35.14% | |
| Los Angeles Capital Management Llc | 0.00% | 4,485 | $1,306,167 | $847,217 | -$458,951 | -35.14% | |
| Penderfund Capital Management Ltd. | 0.15% | 4,100 | $1,194,043 | $774,490 | -$419,553 | -35.14% | |
| Bank Of New York Mellon Corp | 0.00% | 4,082 | $1,188,694 | $771,090 | -$417,604 | -35.13% | |
| Globeflex Capital L P | 0.13% | 3,533 | $1,028,916 | $667,384 | -$361,532 | -35.14% | |
| Deutsche Bank Ag\ | 0.00% | 3,308 | $963,389 | $624,881 | -$338,508 | -35.14% | |
| Quantbot Technologies Lp | 0.04% | 3,097 | $901,939 | $585,023 | -$316,916 | -35.14% | |
| Swiss National Bank | 0.00% | 3,000 | $873,690 | $566,700 | -$306,990 | -35.14% | |
| Strs Ohio | 0.00% | 4,000 | $790,920 | $755,600 | -$35,320 | -4.47% | |
| Rhumbline Advisers | 0.00% | 2,674 | $778,742 | $505,119 | -$273,623 | -35.14% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 2,583 | $752,247 | $487,929 | -$264,318 | -35.14% | |
| Xtx Topco Ltd | 0.01% | 2,563 | $746,422 | $484,151 | -$262,271 | -35.14% | |
| Allspring Global Investments Holdings, Llc | 0.00% | 2,517 | $708,963 | $475,461 | -$233,502 | -32.94% | |
| California State Teachers Retirement System | 0.00% | 2,307 | $671,868 | $435,792 | -$236,076 | -35.14% | |
| State Of Wisconsin Investment Board | 0.00% | 2,302 | $670,411 | $434,848 | -$235,563 | -35.14% | |
| Aqr Capital Management Llc | 0.00% | 2,220 | $646,539 | $419,358 | -$227,181 | -35.14% |
Frequently asked questions about BELFA
Who are the largest institutional holders of BELFA?
The largest institutional holders of BELFA reported in the latest SEC Form 13F filings include Brown Advisory Inc, Mangrove Partners Im, Llc, Blackrock, Inc., Fmr Llc, and Renaissance Technologies LLC. InsiderSet ranks institutional holders by their latest reported BELFA position.
What is BELFA institutional ownership?
This page tracks BELFA positions reported by institutional investment managers through SEC Form 13F. BEL FUSE INC-CL A (BELFA) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own BELFA?
InsiderSet currently tracks 107 institutional managers reporting BELFA 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 BELFA shareholders.
How much BELFA stock do institutions own?
Institutional investment managers disclosed approximately $382.61M in BELFA holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was BELFA institutional ownership last updated?
The latest BELFA 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 BELFA 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 BELFA position after the reporting date.
Are institutions buying or selling BELFA?
Institutional buying and selling can be analyzed by comparing BELFA positions across consecutive 13F reporting periods. InsiderSet's BELFA Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View BELFA ownership changes.
How has BELFA institutional ownership changed over time?
InsiderSet tracks BELFA institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.