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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, Q2 2026

Institutional positions in Bel Fuse Inc as of Jun 30, 2026. 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
276
+45 vs. Q1 2026
Shares held
12.6M
+3.01M (+31.4%) vs. Q1 2026
Total value
$4.18B
+$2.29B (+120.6%) vs. Q1 2026
New holders
78
114 more added
Sold out
33
64 more reduced

4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 holdersQ2 2026: 276 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 heldQ2 2026: $4.18B
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, Q2 2026

Shares, value and share of portfolio for each institution holding Bel Fuse Inc; share changes are against Q1 2026.

Institutions holding BELFB in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Arkadios Wealth Advisors819$272.8K0.00%+819New
Dean Investment Associates, LLC817$272.1K0.04%−20,328−96.1%Reduced
Pinnacle Financial Partners, Inc.810$269.8K0.00%+810New
F/M Investments LLC794$264.4K0.01%+794New
IFP Advisors, Inc750$249.8K0.00%00.0%Unchanged
Leavell Investment Management, Inc.750$249.8K0.01%+750New
Belvedere Trading LLC745$248.1K0.02%+745New
Quantbot Technologies LP744$247.8K0.01%+744New
J.W. Cole Advisors, Inc.735$244.8K0.00%+735New
Versant Capital Management, Inc732$243.8K0.02%00.0%Unchanged
Net Worth Advisory Group728$242.6K0.06%+728New
GTS Securities LLC721$240.1K0.01%+721New
Arrowstreet Capital, Limited Partnership718$239.1K0.00%−32,259−97.8%Reduced
Cornerstone Capital, Inc.700$233.1K0.02%+700New
Axq Capital, LP695$231.5K0.03%+695New
CIBC Bancorp USA Inc.692$230.5K0.00%+692New
Park Avenue Securities LLC674$224.0K0.00%+674New
Nykredit A/S672$223.8K0.00%+672New
Atria Investments LLC657$218.8K0.00%+657New
Money Concepts Capital Corp654$217.8K0.01%+654New
JustInvest LLC643$214.1K0.00%+643New
Symmetry Partners, LLC642$213.8K0.01%+642New
Park Capital Management, LLC637$212.1K0.12%+637New
Sequoia Financial Advisors, LLC617$205.5K0.00%+617New
Fifth Third Bancorp584$194.4K0.00%+80+15.9%Added
State of Alaska, Department of Revenue557$185.0K0.00%00.0%Unchanged
State of Wyoming514$171.2K0.02%+361+235.9%Added
Transamerica Financial Advisors, Inc.482$160.6K0.01%+126+35.4%Added
Federated Hermes, Inc.468$155.9K0.00%−57−10.9%Reduced
KBC Group NV434$145.0K0.00%+242+126.0%Added
Kemnay Advisory Services Inc.427$142.2K0.02%+334+359.1%Added
Nisa Investment Advisors, LLC410$136.5K0.00%+275+203.7%Added
Persistent Asset Partners Ltd337$112.2K0.04%+337New
The PNC Financial Services Group, Inc.310$103.2K0.00%+24+8.4%Added
Elequin Capital LP265$88.3K0.00%+265New
Smithfield Trust Co232$78.0K0.00%00.0%Unchanged
Signature Equity Partners, LLC206$68.6K0.03%+8+4.0%Added
GAMMA Investing LLC190$63.3K0.00%+3+1.6%Added
US Bancorp171$57.0K0.00%+29+20.4%Added
Parallel Advisors, LLC151$50.3K0.00%+85+128.8%Added
Farther Finance Advisors, LLC130$43.3K0.00%+9+7.4%Added
Covestor Ltd105$35.0K0.02%+2+1.9%Added
Signaturefd, LLC87$29.0K0.00%−10−10.3%Reduced
Group One Trading, L.P.86$28.6K0.00%+86New
Optiver Holding B.V.80$26.6K0.00%+26+48.1%Added
Smartleaf Asset Management LLC64$20.2K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC57$19.0K0.00%+19+50.0%Added
WealthCollab, LLC46$15.3K0.01%00.0%Unchanged
SBI Securities Co., Ltd.45$15.0K0.00%+45New
Sterling Capital Management LLC43$14.3K0.00%−302−87.5%Reduced
Pinnacle Wealth Planning Services, Inc.35$11.7K0.00%00.0%Unchanged
Barrow Hanley Mewhinney & Strauss LLC35$11.7K0.00%+35New
Accent Capital Management, LLC35$11.7K0.01%+35New
Clearstead Advisors, LLC32$10.7K0.00%+32New
SRS Capital Advisors, Inc.23$7.66K0.00%+22+2,200.0%Added
Rothschild Investment LLC22$7.33K0.00%00.0%Unchanged
City State Bank21$6.99K0.00%+21New
Northwestern Mutual Wealth Management Co18$6.00K0.00%+16+800.0%Added
Picton Mahoney Asset Management16$5.33K0.00%+16New
True Wealth Design, LLC14$4.66K0.00%−5−26.3%Reduced
Allworth Financial LP14$4.66K0.00%+1+7.7%Added
Colonial Trust Co14$4.53K0.00%00.0%Unchanged
LRI Investments, LLC13$4.33K0.00%−8−38.1%Reduced
Raffa Wealth Management, LLC12$4.00K0.00%+5+71.4%Added
Keating Financial Advisory Services, Inc.12$4.00K0.00%+5+71.4%Added
Zions Bancorporation, National Association10$3.33K0.00%00.0%Unchanged
Hughes Financial Services, LLC10$3.33K0.00%+9+900.0%Added
Steward Partners Investment Advisory, LLC10$3.33K0.00%+10New
Rialto Wealth Management, LLC9$3.00K0.00%+2+28.6%Added
Cullen/Frost Bankers, Inc.7$2.33K0.00%00.0%Unchanged
Strengthening Families & Communities, LLC2$6660.00%+2New
UMA Financial Services, Inc.1$3340.00%+1New
American Capital Advisory, LLC1$3340.00%+1New
Caitong International Asset Management Co., Ltd1$3330.00%−406−99.8%Reduced
Investors Portfolio Services LLC1$3330.00%00.0%Unchanged
Silver Grove Financial Group, Inc.1$3330.00%+1New
Massachusetts Financial Services Co0$00.00%−123,498−100.0%Sold out
Castleark Management LLC0$00.00%−16,311−100.0%Sold out
Dean Capital Management0$00.00%−14,847−100.0%Sold out
Legato Capital Management LLC0$00.00%−11,514−100.0%Sold out
Integrated Quantitative Investments LLC0$00.00%−11,467−100.0%Sold out
Precision Wealth Strategies, LLC0$00.00%−9,416−100.0%Sold out
CenterBook Partners LP0$00.00%−8,742−100.0%Sold out
Vanguard Asset Management, Ltd0$00.00%−7,060−100.0%Sold out
Occudo Quantitative Strategies LP0$00.00%−4,940−100.0%Sold out
Man Group plc0$00.00%−5,709−100.0%Sold out
Two Sigma Securities, LLC0$00.00%−5,010−100.0%Sold out
Koss-Olinger Consulting, LLC0$00.00%−5,010−100.0%Sold out
Blackstone Group Inc.0$00.00%−4,916−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−4,704−100.0%Sold out
Engineers Gate Manager LP0$00.00%−4,036−100.0%Sold out
Aquatic Capital Management LLC0$00.00%−3,213−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−2,860−100.0%Sold out
HSBC Holdings PLC0$00.00%−2,528−100.0%Sold out
Vise Technologies, Inc.0$00.00%−2,853−100.0%Sold out
Colony Group, LLC0$00.00%−1,916−100.0%Sold out
ARS Investment Partners, LLC0$00.00%−1,445−100.0%Sold out
Bailard, Inc.0$00.00%−1,300−100.0%Sold out
Walleye Capital LLC0$00.00%−1,211−100.0%Sold out
Blueshift Asset Management, LLC0$00.00%−1,136−100.0%Sold out