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Bel Fuse Inc

BELFB
Exchange
Nasdaq
Industry
Electronic Coils, Transformers & Other Inductors
SEC CIK
0000729580

In the last 90 days, Bel Fuse Inc insiders filed 0 open-market purchases and 3 sales; 276 institutions reported holding it in 13F filings for Q2 2026, worth $4.18B in total; no superinvestor holds it.

Other share classesBELFA

13F holders, Q4 2023

Institutional positions in Bel Fuse Inc as of Dec 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
146
+12 vs. Q3 2023
Shares held
7.35M
+372.7K (+5.3%) vs. Q3 2023
Total value
$491.0M
+$157.6M (+47.3%) vs. Q3 2023
New holders
35
54 more added
Sold out
23
41 more reduced

Compare with Q3 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting BELFB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2023: 146 institutions
Q1 2021: 88 institutionsQ2 2021: 82 institutionsQ3 2021: 82 institutionsQ4 2021: 67 institutionsQ1 2022: 70 institutionsQ2 2022: 61 institutionsQ3 2022: 83 institutionsQ4 2022: 90 institutionsQ1 2023: 96 institutionsQ2 2023: 126 institutionsQ3 2023: 134 institutionsQ4 2023: 146 institutionsQ1 2024: 147 institutionsQ2 2024: 153 institutionsQ3 2024: 163 institutionsQ4 2024: 168 institutionsQ1 2025: 164 institutionsQ2 2025: 174 institutionsQ3 2025: 197 institutionsQ4 2025: 207 institutionsQ1 2026: 235 institutionsQ2 2026: 276 institutions
Value heldQ4 2023: $491.0M
Q1 2021: $155.6MQ2 2021: $107.4MQ3 2021: $79.1MQ4 2021: $79.4MQ1 2022: $111.9MQ2 2022: $95.9MQ3 2022: $160.2MQ4 2022: $205.7MQ1 2023: $250.6MQ2 2023: $412.5MQ3 2023: $333.4MQ4 2023: $491.0MQ1 2024: $456.7MQ2 2024: $539.8MQ3 2024: $656.5MQ4 2024: $714.9MQ1 2025: $689.3MQ2 2025: $941.8MQ3 2025: $1.31BQ4 2025: $1.72BQ1 2026: $2.05BQ2 2026: $4.18B
Institutions holding BELFB and their total value by quarter
QuarterHoldersValue
Q2 2026276$4.18B
Q1 2026235$2.05B
Q4 2025207$1.72B
Q3 2025197$1.31B
Q2 2025174$941.8M
Q1 2025164$689.3M
Q4 2024168$714.9M
Q3 2024163$656.5M
Q2 2024153$539.8M
Q1 2024147$456.7M
Q4 2023146$491.0M
Q3 2023134$333.4M
Q2 2023126$412.5M
Q1 202396$250.6M
Q4 202290$205.7M
Q3 202283$160.2M
Q2 202261$95.9M
Q1 202270$111.9M
Q4 202167$79.4M
Q3 202182$79.1M
Q2 202182$107.4M
Q1 202188$155.6M

Institutions, Q4 2023

Shares, value and share of portfolio for each institution holding Bel Fuse Inc; share changes are against Q3 2023.

Institutions holding BELFB in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock Inc.791,915$52.9M0.00%+48,047+6.5%Added
Dimensional Fund Advisors LP773,634$51.7M0.02%−5,325−0.7%Reduced
Vanguard Group Inc701,172$46.8M0.00%+24,449+3.6%Added
Renaissance Technologies LLC324,837$21.7M0.03%−34,214−9.5%Reduced
Invesco Ltd.280,812$18.7M0.00%+91,963+48.7%Added
Geode Capital Management, LLC258,770$17.3M0.00%+7,214+2.9%Added
Acadian Asset Management LLC255,889$17.1M0.07%−64,171−20.0%Reduced
LSV Asset Management249,900$16.7M0.04%+34,100+15.8%Added
State Street Corp215,467$14.4M0.00%+17,731+9.0%Added
American Century Companies Inc197,375$13.2M0.01%+27,455+16.2%Added
Portolan Capital Management, LLC190,512$12.7M1.11%−188,666−49.8%Reduced
Advisory Research Inc190,186$12.7M1.96%+165,800+679.9%Added
GW&K Investment Management, LLC187,765$12.5M0.12%+187,765New
Loomis Sayles & Co L P177,711$11.9M0.02%+2,168+1.2%Added
Oberweis Asset Management Inc124,300$8.30M0.77%+2,800+2.3%Added
ArrowMark Colorado Holdings LLC111,478$7.44M0.08%−27,353−19.7%Reduced
Northern Trust Corp106,291$7.10M0.00%+2,140+2.1%Added
Bank of New York Mellon Corp104,329$6.97M0.00%−23,050−18.1%Reduced
Charles Schwab Investment Management Inc99,716$6.66M0.00%+21,047+26.8%Added
Ophir Asset Management Pty Ltd98,430$6.57M1.31%+98,430New
Hillsdale Investment Management Inc.90,401$6.04M0.49%−16,300−15.3%Reduced
Potrero Capital Research LLC86,570$5.78M3.16%−62,789−42.0%Reduced
Driehaus Capital Management LLC86,372$5.77M0.07%+86,372New
Morgan Stanley78,697$5.25M0.00%+33,797+75.3%Added
Santa Monica Partners LP67,634$4.52M3.34%00.0%Unchanged
Investors Asset Management of Georgia Inc55,464$3.69M1.87%+619+1.1%Added
Royce & Associates LP53,752$3.59M0.03%+52,261+3,505.1%Added
SEI Investments Co52,061$3.48M0.01%−2,221−4.1%Reduced
Boston Partners47,820$3.19M0.00%−67,085−58.4%Reduced
Two Sigma Advisers, LP45,815$3.06M0.01%+21,800+90.8%Added
Gabelli Funds LLC43,191$2.88M0.02%−33,000−43.3%Reduced
Keybank National Association41,500$2.77M0.01%+41,500New
O'Shaughnessy Asset Management, LLC38,194$2.55M0.03%+4,368+12.9%Added
Janney Montgomery Scott LLC37,532$2.51M0.01%+2,977+8.6%Added
Pinnacle Associates Ltd36,680$2.45M0.04%−355−1.0%Reduced
Citadel Advisors LLC36,158$2.41M0.00%+8,844+32.4%Added
Granahan Investment Management Inc35,868$2.39M0.08%+5,483+18.0%Added
Squarepoint Ops LLC35,304$2.36M0.01%−8,911−20.2%Reduced
Qube Research & Technologies Ltd33,482$2.24M0.01%+19,223+134.8%Added
First Trust Advisors LP31,863$2.13M0.00%+351+1.1%Added
Perritt Capital Management Inc30,722$2.05M1.15%−3,000−8.9%Reduced
Brandywine Global Investment Management, LLC29,192$1.95M0.02%−3,070−9.5%Reduced
AQR Capital Management LLC28,415$1.90M0.00%+28,415New
Nuveen Asset Management, LLC28,302$1.89M0.00%+310+1.1%Added
JPMorgan Chase & Co26,585$1.78M0.00%−20,675−43.7%Reduced
Navellier & Associates Inc24,683$1.65M0.25%+9,063+58.0%Added
Connor, Clark & Lunn Investment Management Ltd.24,565$1.64M0.01%−6,508−20.9%Reduced
Two Sigma Investments, LP22,796$1.52M0.00%−14,305−38.6%Reduced
Swiss National Bank21,000$1.40M0.00%−2,400−10.3%Reduced
Goldman Sachs Group Inc20,750$1.39M0.00%−1,273−5.8%Reduced
Ritholtz Wealth Management20,270$1.35M0.05%+976+5.1%Added
Barclays PLC18,763$1.25M0.00%+10,092+116.4%Added
Susquehanna International Group, LLP17,618$1.18M0.00%+2,542+16.9%Added
Bridgeway Capital Management, LLC17,160$1.15M0.02%+1,536+9.8%Added
Empowered Funds, LLC17,160$1.15M0.03%+1,536+9.8%Added
Quadrature Capital Ltd15,886$1.06M0.02%+15,886New
Rhumbline Advisers15,694$1.05M0.00%−9−0.1%Reduced
Royal Bank of Canada15,574$1.04M0.00%+382+2.5%Added
ClariVest Asset Management LLC15,228$1.02M0.06%+396+2.7%Added
Corsair Capital Management, L.P.15,000$1.00M0.32%+15,000New
Bank of America Corp14,604$975.1K0.00%+5,855+66.9%Added
Apis Capital Advisors, LLC14,000$934.8K0.98%+14,000New
Globeflex Capital L P13,685$913.7K0.09%00.0%Unchanged
UBS Group AG13,298$887.9K0.00%+4,515+51.4%Added
Teacher Retirement System of Texas13,022$869.0K0.01%+5,521+73.6%Added
Martingale Asset Management L P12,582$840.1K0.02%+62+0.5%Added
Credit Suisse AG12,120$809.3K0.00%+527+4.5%Added
Legal & General Group Plc11,568$772.4K0.00%+264+2.3%Added
California State Teachers Retirement System11,198$747.7K0.00%−507−4.3%Reduced
Gotham Asset Management, LLC10,978$733.0K0.01%+2,353+27.3%Added
Aviva PLC10,695$714.1K0.00%+10,695New
Range Financial Group LLC10,670$712.4K0.43%+10,670New
UBS Asset Management Americas Inc10,540$703.8K0.00%+4,300+68.9%Added
Kennedy Capital Management, Inc.10,422$695.9K0.02%−11,390−52.2%Reduced
Jane Street Group, LLC10,329$689.7K0.00%+2,115+25.7%Added
STRS Ohio10,000$667.0K0.00%+4,000+66.7%Added
Franklin Resources Inc9,681$646.4K0.00%+5,004+107.0%Added
Panagora Asset Management Inc9,285$620.0K0.00%−20.0%Reduced
Blair William & Co9,150$610.9K0.00%00.0%Unchanged
Mackenzie Financial Corp8,994$600.5K0.00%+8,994New
Occudo Quantitative Strategies LP8,990$600.3K0.08%−3,538−28.2%Reduced
Janus Henderson Group PLC8,583$573.7K0.00%+22+0.3%Added
Lazard Asset Management LLC8,438$563.0K0.00%+3,466+69.7%Added
Cetera Advisor Networks LLC8,353$557.7K0.00%+8,353New
Alliancebernstein L.P.7,460$498.1K0.00%+1,120+17.7%Added
Virtus Investment Advisers, Inc.6,900$460.7K0.35%+6,900New
Alps Advisors Inc6,858$457.9K0.00%−433−5.9%Reduced
Truist Financial Corp6,560$438.0K0.00%−212−3.1%Reduced
PFG Advisors6,463$431.5K0.03%+1,253+24.0%Added
Mesirow Financial Investment Management, Inc.6,788$416.6K0.02%00.0%Unchanged
Advisor Group Holdings, Inc.6,111$407.9K0.00%−4,121−40.3%Reduced
Cetera Advisors LLC6,060$404.6K0.01%+6,060New
Victory Capital Management Inc6,056$404.4K0.00%+3,428+130.4%Added
Koss-Olinger Consulting, LLC6,009$401.0K0.04%+6,009New
Zurcher Kantonalbank (Zurich Cantonalbank)5,993$400.2K0.00%+3,888+184.7%Added
FMR LLC5,808$387.8K0.00%+5,053+669.3%Added
MetLife Investment Management5,530$369.2K0.00%00.0%Unchanged
Balyasny Asset Management LLC5,291$353.3K0.00%−16,514−75.7%Reduced
American International Group, Inc.5,203$347.4K0.00%−21−0.4%Reduced
Manatuck Hill Partners, LLC5,128$342.4K0.15%00.0%Unchanged