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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, Q1 2023

Institutional positions in Bel Fuse Inc as of Mar 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
96
+7 vs. Q4 2022
Shares held
6.66M
+426.5K (+6.8%) vs. Q4 2022
Total value
$250.6M
+$45.2M (+22.0%) vs. Q4 2022
New holders
16
33 more added
Sold out
9
33 more reduced

1 institution that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: 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 holdersQ1 2023: 96 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 heldQ1 2023: $250.6M
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, Q1 2023

Shares, value and share of portfolio for each institution holding Bel Fuse Inc; share changes are against Q4 2022.

Institutions holding BELFB in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Dimensional Fund Advisors LP763,568$28.7M0.01%+22,325+3.0%Added
Vanguard Group Inc566,819$21.3M0.00%+1,722+0.3%Added
Portolan Capital Management, LLC506,353$19.0M1.81%+19,877+4.1%Added
Acadian Asset Management LLC389,717$14.6M0.06%−8,139−2.0%Reduced
Invesco Ltd.386,335$14.5M0.00%+297,364+334.2%Added
Renaissance Technologies LLC352,951$13.3M0.02%−51,700−12.8%Reduced
Morgan Stanley268,410$10.1M0.00%+8,916+3.4%Added
BlackRock Inc.242,247$9.10M0.00%−2,516−1.0%Reduced
Ameriprise Financial Inc233,432$8.77M0.00%−34,401−12.8%Reduced
LSV Asset Management221,241$8.31M0.02%−2,600−1.2%Reduced
Hillsdale Investment Management Inc.196,501$7.38M0.63%00.0%Unchanged
Boston Partners139,933$5.26M0.01%−7,641−5.2%Reduced
Russell Investments Group, Ltd.137,612$5.17M0.01%+9,465+7.4%Added
ArrowMark Colorado Holdings LLC128,487$4.83M0.05%+128,487New
Susquehanna International Group, LLP127,386$4.79M0.01%+77,137+153.5%Added
Oberweis Asset Management Inc121,500$4.57M0.71%+6,700+5.8%Added
Geode Capital Management, LLC114,097$4.29M0.00%+2,675+2.4%Added
American Century Companies Inc113,389$4.11M0.00%+33,737+42.4%Added
Bank of New York Mellon Corp104,962$3.94M0.00%+15,594+17.4%Added
Millennium Management LLC100,437$3.77M0.00%−66,606−39.9%Reduced
Potrero Capital Research LLC99,274$3.73M2.51%+99,274New
Gabelli Funds LLC77,491$2.91M0.02%−6,300−7.5%Reduced
Santa Monica Partners LP67,634$2.54M2.06%00.0%Unchanged
Bridgeway Capital Management, LLC61,009$2.29M0.06%−7,320−10.7%Reduced
Jane Street Group, LLC56,982$2.14M0.00%+44,964+374.1%Added
Investors Asset Management of Georgia Inc55,420$2.08M1.11%−175−0.3%Reduced
Calamos Advisors LLC53,327$2.00M0.01%+4,904+10.1%Added
Investment Management of Virginia LLC53,015$1.99M0.38%+1,975+3.9%Added
JPMorgan Chase & Co50,982$1.92M0.00%+49,782+4,148.5%Added
EAM Investors, LLC50,909$1.91M0.38%−53,424−51.2%Reduced
State Street Corp43,896$1.65M0.00%+2,000+4.8%Added
O'Shaughnessy Asset Management, LLC42,472$1.60M0.03%+257+0.6%Added
HRT Financial LP35,584$1.34M0.02%+19,374+119.5%Added
Perritt Capital Management Inc35,564$1.34M0.74%00.0%Unchanged
Kennedy Capital Management, Inc.33,585$1.26M0.04%−29,157−46.5%Reduced
Northern Trust Corp30,079$1.13M0.00%+216+0.7%Added
Horizon Kinetics Asset Management LLC28,988$1.09M0.02%00.0%Unchanged
Quadrature Capital Ltd28,402$1.07M0.03%−4,121−12.7%Reduced
First Trust Advisors LP27,526$1.03M0.00%+2,101+8.3%Added
D. E. Shaw & Co., Inc.27,117$1.02M0.00%−49,794−64.7%Reduced
Manatuck Hill Partners, LLC25,000$939.5K0.48%00.0%Unchanged
Squarepoint Ops LLC24,816$932.6K0.01%+24,816New
Two Sigma Advisers, LP23,615$887.5K0.00%−18,900−44.5%Reduced
Healthcare of Ontario Pension Plan Trust Fund23,400$879.4K0.00%+23,400New
Qube Research & Technologies Ltd23,260$874.1K0.00%+9,522+69.3%Added
Gamco Investors, Inc. Et Al22,900$860.6K0.01%−2,800−10.9%Reduced
Barclays PLC22,673$852.1K0.00%+11,184+97.3%Added
SEI Investments Co20,890$785.0K0.00%+5,128+32.5%Added
Arrowstreet Capital, Limited Partnership20,487$770.0K0.00%+6,268+44.1%Added
Ritholtz Wealth Management20,385$766.1K0.04%+3,210+18.7%Added
Marshall Wace, LLP19,254$723.6K0.00%+19,254New
Grantham, Mayo, Van Otterloo & Co. LLC17,800$668.9K0.00%−500−2.7%Reduced
Tudor Investment Corp Et Al16,008$602.0K0.01%+16,008New
Navellier & Associates Inc15,406$579.0K0.12%−450−2.8%Reduced
Royal Bank of Canada15,106$567.0K0.00%+282+1.9%Added
Verition Fund Management LLC11,905$447.4K0.01%+11,905New
Bank of America Corp11,815$444.0K0.00%+11,798+69,400.0%Added
Mirabella Financial Services LLP11,252$422.9K0.09%+11,252New
Citadel Advisors LLC10,905$409.8K0.00%−97,163−89.9%Reduced
Spouting Rock Asset Management, LLC10,619$399.1K0.14%−10,617−50.0%Reduced
Alps Advisors Inc9,240$347.2K0.00%+9,240New
Blair William & Co9,150$343.9K0.00%00.0%Unchanged
Bailard, Inc.8,953$336.5K0.01%−1,900−17.5%Reduced
Caxton Associates LP8,631$324.4K0.05%−18,722−68.4%Reduced
Baader Bank INC8,100$303.6K0.02%+8,100New
Occudo Quantitative Strategies LP7,805$293.3K0.03%−1,497−16.1%Reduced
Globeflex Capital L P7,733$290.6K0.04%00.0%Unchanged
Cubist Systematic Strategies, LLC7,427$279.1K0.00%−7,075−48.8%Reduced
Jump Financial, LLC7,215$271.1K0.01%−6,718−48.2%Reduced
Man Group plc–$247.0K0.00%–New
Beach Investment Counsel Inc6,555$246.0K0.03%00.0%Unchanged
LMR Partners LLP6,313$237.2K0.01%+6,313New
Stokes Family Office, LLC6,249$234.8K0.03%−209−3.2%Reduced
Advisor Group Holdings, Inc.5,366$201.5K0.00%+579+12.1%Added
Lazard Asset Management LLC3,799$142.0K0.00%+971+34.3%Added
Quantbot Technologies LP2,834$106.5K0.01%+528+22.9%Added
Advisory Services Network, LLC2,682$100.8K0.00%+5+0.2%Added
Victory Capital Management Inc2,628$98.8K0.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC2,500$94.0K0.00%+1,600+177.8%Added
Tucker Asset Management LLC1,484$55.8K0.02%+1,484New
Dorsey Wright & Associates1,442$54.2K0.02%−162−10.1%Reduced
UBS Group AG1,369$51.4K0.00%+80+6.2%Added
Citigroup Inc1,047$39.3K0.00%+1,047New
Belpointe Asset Management LLC867$32.6K0.00%+867New
State of Wyoming847$31.8K0.01%−2,729−76.3%Reduced
FMR LLC737$27.7K0.00%00.0%Unchanged
North Star Investment Management Corp.550$20.7K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)425$16.0K0.00%−955−69.2%Reduced
US Bancorp217$8.15K0.00%+217New
Aquatic Capital Management LLC200$8.00K0.00%−200−50.0%Reduced
Federated Hermes, Inc.164$6.16K0.00%−50−23.4%Reduced
GWM Advisors LLC121$4.55K0.00%−1,001−89.2%Reduced
Wells Fargo & Company71$2.69K0.00%00.0%Unchanged
Simplex Trading, LLC60$2.00K0.00%−26−30.2%Reduced
The PNC Financial Services Group, Inc.28$1.05K0.00%00.0%Unchanged
ClariVest Asset Management LLC32$1.00K0.00%00.0%Unchanged
EAM Global Investors LLC0$00.00%−48,324−100.0%Sold out
Trexquant Investment LP0$00.00%−13,566−100.0%Sold out
Janney Montgomery Scott LLC0$00.00%−11,609−100.0%Sold out
Two Sigma Investments, LP0$00.00%−7,837−100.0%Sold out