Skip to content
Disclosery

BELFB BEL FUSE INC

Follow

CL B (common), issuer CIK 729580

228 managers (235 13F filers) reported a position in BELFB shares at 2026-03-31, 10,347,177 shares in all. 53 filers opened a position and 26 filers sold out during the quarter.

Managers
228
13F filers
235
New
53
Added
77
Reduced
69
Sold out
26
Shares held by filers
10,347,177

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
VANGUARD GROUP INCgroup of 6 filers holding904,813$179MnewTimeline
BlackRock, Inc.in group BlackRock, Inc.846,920$168M<0.01%-19,14613F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/773,475$153M0.02%-60,78613F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson760,141$151M0.07%+140,80413F-HR/ATimelineGroup
FMR LLCin group FMR LLC631,307$125M0.01%-36,36913F-HRTimelineGroup
T. Rowe Price Investment Management, In…572,919$113M0.08%+53,91413F-HRTimeline
WASATCH ADVISORS LP478,709$94.8M0.63%+68,22213F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC308,048$61M<0.01%+40,09813F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP256,833$50.9M0.01%+1,99213F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO249,387$49.3M<0.01%+106,02613F-HR/ATimelineGroup
STATE STREET CORPin group STATE STREET CORP242,454$48M<0.01%-4,50513F-HRTimelineGroup
Fisher Asset Management, LLC215,648$42.7M0.01%-35,96013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC213,872$42.3M0.07%-17,47913F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…188,056$37.2M0.07%-47,94913F-HRTimelineGroup
LORD, ABBETT & CO. LLC167,404$33.1M0.11%+105,93913F-HRTimeline
LOOMIS SAYLES & CO L Pin group LOOMIS SAYLES & CO L P145,648$28.8M0.04%-55,06413F-HRTimelineGroup
Tidal Investments LLCin group Tidal Investments LLC141,791$28.1M0.09%new13F-HRTimelineGroup
BESSEMER GROUP INCin group BESSEMER GROUP INC137,318$27.2M0.04%-69,59413F-HRTimelineGroup
Tema ETFs LLC133,318$26.4M1.77%+43,40013F-HRTimeline
GW&K Investment Management, LLC130,419$25.8M0.23%-31,89813F-HRTimeline
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…123,498$24.5M0.01%-15,49913F-HRTimelineGroup
ADVISORY RESEARCH INC119,364$23.6M2.91%-15,42613F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources114,353$22.6M0.01%+102,05213F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP104,880$20.8M<0.01%+3,94013F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co97,672$19.3M<0.01%-2,49413F-HRTimelineGroup
Allspring Global Investments Holdings, …in group Allspring Global Investments …94,822$19.3M0.03%+94,79613F-HRTimelineGroup
ROYCE & ASSOCIATES LP97,173$19.2M0.19%+5,13813F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC84,150$16.7M<0.01%+3,15813F-HRTimelineGroup
BROWN ADVISORY INCin group BROWN ADVISORY INC82,149$16.3M0.03%-36,07413F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding76,501$15.1M+10,769Timeline
Invesco Ltd.in group Invesco Ltd.74,026$14.7M<0.01%-95,32613F-HRTimelineGroup
SANTA MONICA PARTNERS LP67,634$13.4M7.47%013F-HRTimeline
Boston Partnersin group Boston Trust Walden Corp65,443$13M0.01%+2,80013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY61,252$12.1M<0.01%+19,69313F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…60,018$11.9M0.02%+48,94713F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP58,028$11.5M0.01%+3,63013F-HRTimelineGroup
Portolan Capital Management, LLCin group Portolan Capital Management, …53,170$10.5M0.56%-86,34313F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp51,236$10.1M<0.01%-2,45113F-HRTimelineGroup
NOMURA ASSET MANAGEMENT INTERNATIONAL I…in group NOMURA ASSET MANAGEMENT CO LTD50,956$10.1M0.02%+14,10513F-HRTimelineGroup
POLEN CAPITAL MANAGEMENT LLC43,339$8.58M0.06%+20,81713F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC38,350$7.59M0.01%new13F-HRTimelineGroup
Grandeur Peak Global Advisors, LLC36,892$7.3M1.71%-1,25213F-HRTimeline
DEAN INVESTMENT ASSOCIATES, LLCgroup of 2 filers holding35,992$7.13M-22,071Timeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO35,669$7.06M0.01%+8,52113F-HRTimelineGroup
VOLORIDGE INVESTMENT MANAGEMENT, LLC35,081$6.95M0.03%-5,50213F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC34,992$6.93M<0.01%+13,91613F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…34,367$6.8M0.01%-4213F-HRTimelineGroup
LPL Financial LLC33,618$6.66M<0.01%+19,19713F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …32,977$6.53M<0.01%-64,13913F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC32,527$6.44M<0.01%+28,58013F-HRTimelineGroup
HERALD INVESTMENT MANAGEMENT Ltd30,000$5.94M0.83%013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC29,560$5.85M<0.01%-4,44913F-HRTimeline
Nitor Capital Management LLC25,400$5.03M3.87%013F-HRTimeline
INVESTORS ASSET MANAGEMENT OF GEORGIA I…24,807$4.91M2.01%-15013F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC24,470$4.84M<0.01%+19,67213F-HRTimelineGroup
Informed Momentum Co LLC24,022$4.76M0.55%-2,45913F-HRTimeline
Ballast Asset Management, LP23,727$4.7M2.09%-18,28113F-HRTimeline
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A23,700$4.69M0.02%+15,20013F-HRTimelineGroup
Nuveen, LLCin group TIAA22,676$4.49M<0.01%+68613F-HRTimelineGroup
Swiss National Bank20,800$4.12M<0.01%013F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD20,787$4.12M0.01%-2,09913F-HRTimeline
Emerald Investment Advisers, LLCin group EMERALD ADVISERS, LLC19,097$3.78M0.34%13F-HRTimelineGroup
Creative Planningin group Creative Planning18,826$3.73M<0.01%+3,81113F-HRTimelineGroup
SG Americas Securities, LLC17,642$3.49M<0.01%+12,96613F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…17,272$3.42M0.01%+17,23313F-HRTimelineGroup
CASTLEARK MANAGEMENT LLC16,311$3.23M0.11%-16,79013F-HRTimeline
Phocas Financial Corp.15,277$3.02M0.47%-7,81413F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC14,722$2.91M<0.01%new13F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC14,609$2.89M0.01%-15913F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP14,584$2.89M<0.01%new13F-HRTimelineGroup
TD Asset Management Inc13,498$2.67M<0.01%+1,00413F-HRTimeline
RHUMBLINE ADVISERS13,367$2.65M<0.01%+4413F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…13,217$2.62M<0.01%+3,58513F-HRTimeline
North Star Investment Management Corp.12,550$2.48M0.15%+12,00013F-HRTimeline
BRIDGES INVESTMENT MANAGEMENT INC12,425$2.46M0.03%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS12,248$2.42M<0.01%+9,91213F-HRTimelineGroup
Qube Research & Technologies Ltd11,752$2.33M<0.01%-3,00913F-HRTimeline
Legato Capital Management LLC11,514$2.28M0.21%-88913F-HRTimeline
Integrated Quantitative Investments LLC11,467$2.27M0.41%+8,84813F-HRTimeline
Expect Equity LLC11,061$2.19M1.7%-7,47613F-HR/ATimeline
RITHOLTZ WEALTH MANAGEMENT11,016$2.18M0.04%-27613F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/10,348$2.05M<0.01%+8913F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.11,244$1.91M<0.01%+54613F-HRTimeline
Precision Wealth Strategies, LLC9,416$1.86M0.62%new13F-HRTimeline
PINNACLE ASSOCIATES LTD8,906$1.76M0.02%-1,13513F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\8,838$1.75M<0.01%+74913F-HRTimelineGroup
CenterBook Partners LP8,742$1.73M0.09%new13F-HRTimeline
Oliver Luxxe Assets LLC8,132$1.61M0.24%+1813F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc7,945$1.57M<0.01%-1,21213F-HRTimelineGroup
B. Metzler seel. Sohn & Co. AGin group B. Metzler seel. Sohn & Co. AG7,634$1.51M0.01%+2,66413F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd7,415$1.47M0.03%new13F-HRTimelineGroup
CORSAIR CAPITAL MANAGEMENT, L.P.7,234$1.43M0.21%013F-HRTimeline
Sowell Financial Services LLC7,214$1.43M0.05%new13F-HRTimeline
PFG Advisors6,945$1.38M0.07%+28913F-HRTimeline
OCCUDO QUANTITATIVE STRATEGIES LP4,940$1.36M0.07%new13F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC6,564$1.3M<0.01%+1,71813F-HRTimelineGroup
Brooklyn Investment Group6,278$1.24M0.04%+1,00013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND6,063$1.2M<0.01%-47813F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…5,846$1.16M0.01%-3513F-HRTimelineGroup
Man Group plcin group Man Group plc5,709$1.13M<0.01%new13F-HRTimelineGroup
CAXTON ASSOCIATES LLP5,150$1.02M0.02%013F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK5,143$1.02M<0.01%new13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN5,111$1.01M<0.01%-7,18113F-HR/ATimelineGroup
TWO SIGMA SECURITIES, LLC5,010$992K0.12%+3,43813F-HRTimeline
Koss-Olinger Consulting, LLC5,010$992K0.08%-1,90613F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC4,958$982K<0.01%-66,33213F-HRTimelineGroup
Blackstone Inc.in group Blackstone Inc.4,916$973K<0.01%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…4,860$962K<0.01%-113F-HRTimelineGroup
Verdence Capital Advisors LLC4,855$961K0.06%new13F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …4,782$947K<0.01%+5013F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.4,704$931K<0.01%new13F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS4,646$920K<0.01%+1,75513F-HRTimeline
CITIGROUP INCin group CITIGROUP INC4,329$857K<0.01%+3,93113F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …4,267$845K<0.01%+4,14613F-HRTimelineGroup
Janney Montgomery Scott LLC4,260$843K<0.01%+17313F-HRTimeline
EVOLVE PRIVATE WEALTH, LLC4,095$811K0.04%+39213F-HRTimeline
Engineers Gate Manager LP4,036$799K0.01%new13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC3,895$771K<0.01%-12,30313F-HRTimelineGroup
MML INVESTORS SERVICES, LLC3,750$742K<0.01%new13F-HRTimeline
Quantinno Capital Management LP3,670$727K<0.01%+22513F-HRTimeline
Diametric Capital, LP3,667$726K0.19%new13F-HRTimeline
BLAIR WILLIAM & CO/IL3,525$698K<0.01%-4,50013F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP3,521$697K<0.01%new13F-HRTimelineGroup
BECK MACK & OLIVER LLC3,500$693K0.01%013F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC3,420$677K<0.01%+3,35713F-HRTimeline
Ashton Thomas Private Wealth, LLC3,295$652K0.02%-58413F-HRTimeline
Aquatic Capital Management LLC3,213$636K0.02%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP3,107$632K<0.01%+2,91613F-HRTimelineGroup
GLOBALT Investments LLC / GA3,018$598K0.02%+10413F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…3,010$596K<0.01%013F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC3,008$596K0.01%-1,11113F-HRTimeline
Concurrent Investment Advisors, LLCin group Concurrent Investment Advisor…2,964$587K0.01%new13F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…2,918$578K<0.01%013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM2,896$573K<0.01%-4613F-HRTimeline
Police & Firemen's Retirement System of…2,881$570K<0.01%013F-HRTimeline
Dynamic Technology Lab Private Ltd2,860$566K0.09%new13F-HRTimeline
ARGENT CAPITAL MANAGEMENT LLC2,816$558K0.02%new13F-HRTimeline
Pinnacle Wealth Management Advisory Gro…2,676$530K0.04%-32413F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC2,528$493K<0.01%new13F-HRTimelineGroup
Vise Technologies, Inc.2,853$484K0.01%013F-HRTimeline
KLP KAPITALFORVALTNING AS2,300$455K<0.01%+10013F-HRTimeline
LANARK FINANCIAL, INC.2,145$425K0.03%+1,51513F-HRTimeline
NAVELLIER & ASSOCIATES INC2,126$421K0.04%new13F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…2,105$417K<0.01%013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…2,074$411K<0.01%+29013F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC2,049$406K<0.01%-11513F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.2,014$399K<0.01%-21913F-HRTimelineGroup
FourThought Financial Partners, LLC1,965$389K0.03%+2413F-HRTimeline
Focus Partners Wealthin group Focus Partners Wealth1,916$379K<0.01%-53113F-HRTimelineGroup
Rothschild Wealth LLC1,901$376K0.03%-12,15013F-HRTimeline
STRS OHIO1,900$376K<0.01%+10013F-HRTimeline
Round Rock Advisors LLC1,855$367K0.06%+3613F-HRTimeline
Hillsdale Investment Management Inc.1,850$366K0.01%+1,80013F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP1,797$356K<0.01%new13F-HRTimelineGroup
Empowered Funds, LLC1,774$351K<0.01%new13F-HR/ATimeline
Cetera Investment Advisers1,727$342K<0.01%+1113F-HRTimeline
Truvestments Capital LLC1,668$330K0.06%-32713F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC1,661$329K0.03%new13F-HRTimeline
Lido Advisors, LLCin group Lido Advisors, LLC1,643$325K<0.01%+113F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC1,631$323K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,513$300K0.01%+1,34713F-HRTimelineGroup
ProShare Advisors LLC1,507$298K<0.01%-39413F-HRTimeline
VIRGINIA RETIREMENT SYSTEMS ET Al1,450$287K<0.01%new13F-HRTimeline
ARS Investment Partners, LLC1,445$286K0.01%new13F-HRTimeline
Templeton & Phillips Capital Management…1,443$286K0.23%013F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…1,313$260K<0.01%-25713F-HRTimelineGroup
BAILARD, INC.1,300$257K0.01%new13F-HRTimeline
D'Orazio & Associates, Inc.1,296$257K0.03%013F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC1,211$240K<0.01%new13F-HR/ATimelineGroup
Blueshift Asset Management, LLC1,136$225K0.07%new13F-HRTimeline
DARK FOREST CAPITAL MANAGEMENT LP1,127$223K0.02%-6,25713F-HRTimeline
HOHIMER WEALTH MANAGEMENT, LLC1,091$216K0.03%-41513F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC1,069$212K<0.01%new13F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.1,025$203K0.04%new13F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co974$194K<0.01%-50313F-HRTimelineGroup
NewEdge Advisors, LLC970$192K<0.01%-313F-HR/ATimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…869$172K0.01%013F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC821$162K<0.01%-8,01413F-HRTimelineGroup
IFP Advisors, Inc750$148K<0.01%new13F-HRTimeline
Versant Capital Management, Inc732$145K0.01%013F-HRTimeline
State of Alaska, Department of Revenue557$110K<0.01%013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.525$104K<0.01%+24413F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…504$99.8K<0.01%new13F-HRTimelineGroup
Caitong International Asset Management …407$80.6K0.01%+28113F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…356$70.5K0.01%new13F-HRTimelineGroup
Sterling Capital Management LLC345$68.3K<0.01%-26013F-HRTimeline
CWM, LLCin group CWM, LLC317$62.8K<0.01%+1013F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA293$58K<0.01%-15913F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…286$56.6K<0.01%+4813F-HRTimelineGroup
QUADRANT CAPITAL GROUP LLC242$47.9K<0.01%-713F-HR/ATimeline
Smithfield Trust Co232$46K<0.01%013F-HRTimeline
Signature Equity Partners, LLC198$39.2K0.02%new13F-HRTimeline
KBC Group NVin group KBC Group NV192$38K<0.01%new13F-HRTimelineGroup
GAMMA Investing LLC187$37K<0.01%+1913F-HRTimeline
State of Wyoming153$30.3K<0.01%new13F-HRTimeline
Aster Capital Management (DIFC) Ltd396$29.6K0.01%new13F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\142$28.1K<0.01%+613F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC135$26.7K<0.01%013F-HRTimeline
Farther Finance Advisors, LLC121$24.6K<0.01%-2813F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…118$23.4K<0.01%-2113F-HRTimeline

Events

  • Hamilton Richard E reported holdings of BELFB shares in a Form 3 filed 2026-10-07. 0001437749-26-032277

    Accepted , ingested