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Disclosery

BELFB BEL FUSE INC

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CL B (common), issuer CIK 729580

193 managers (197 13F filers) reported a position in BELFB shares at 2025-09-30, 9,344,276 shares in all. 45 filers opened a position and 23 filers sold out during the quarter.

Managers
193
13F filers
197
New
45
Added
53
Reduced
71
Sold out
23
Shares held by filers
9,344,276

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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 INCin group VANGUARD GROUP INC908,032$128M<0.01%-2,08213F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.838,432$118M<0.01%+8,32913F-HRTimelineGroup
FMR LLCin group FMR LLC610,432$86.1M<0.01%+335,81413F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson519,503$73.3M0.03%+92,10813F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/478,698$67.5M0.01%+325,72413F-HRTimeline
T. Rowe Price Investment Management, In…357,269$50.4M0.03%+184,97313F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP335,787$47.4M0.01%-309,73713F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC265,147$37.4M<0.01%-56,77513F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC252,851$35.7M0.05%-30,60013F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…245,248$34.6M0.07%+98,17813F-HRTimelineGroup
MASSACHUSETTS FINANCIAL SERVICES CO /MA/in group MASSACHUSETTS FINANCIAL SERVI…244,512$34.5M0.01%-141,30513F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP241,127$34M<0.01%+1,55513F-HRTimelineGroup
WASATCH ADVISORS LP235,518$33.2M0.18%-48,49613F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC206,275$29.1M0.04%-119,52513F-HRTimelineGroup
LOOMIS SAYLES & CO L Pin group LOOMIS SAYLES & CO L P200,360$28.3M0.03%+3,84113F-HRTimelineGroup
ROYCE & ASSOCIATES LP200,297$28.2M0.28%-182,15513F-HRTimeline
GW&K Investment Management, LLC195,351$27.5M0.24%-20,29713F-HRTimeline
ADVISORY RESEARCH INC193,560$27.3M3.58%-197,29813F-HRTimeline
Invesco Ltd.in group Invesco Ltd.174,583$24.6M<0.01%+37,17513F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC171,548$24.2M0.01%-93,31613F-HRTimelineGroup
BROWN ADVISORY INCin group BROWN ADVISORY INC128,245$18.1M0.02%-3,79413F-HRTimelineGroup
Portolan Capital Management, LLCin group Portolan Capital Management, …123,766$17.5M0.94%+61,24013F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP108,088$15.2M<0.01%-23113F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …103,082$14.5M0.01%new13F-HRTimelineGroup
Makaira Partners LLC100,000$14.1M7.24%-145,99913F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co99,032$14M<0.01%+43013F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC96,050$13.5M0.01%+72,58513F-HRTimelineGroup
Granahan Investment Management, LLC87,310$12.3M0.5%-21,60213F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC72,480$10.2M0.01%new13F-HRTimelineGroup
DEAN INVESTMENT ASSOCIATES, LLCgroup of 2 filers holding71,302$10.1M-22,769Timeline
SANTA MONICA PARTNERS LP67,634$9.54M5.6%013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp61,882$8.73M<0.01%-75313F-HRTimelineGroup
LORD, ABBETT & CO. LLC61,475$8.67M0.03%-20,09113F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC61,218$8.63M<0.01%+23,95713F-HRTimelineGroup
Boston Partnersin group Boston Trust Walden Corp55,732$7.86M0.01%+4,42513F-HRTimelineGroup
NEOS Investment Management LLC52,896$7.46M0.06%+1,17913F-HRTimeline
Tema ETFs LLC52,896$7.46M0.62%+1,17913F-HRTimeline
Ballast Asset Management, LP51,080$7.2M3.29%-18,28613F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…41,475$5.85M0.01%-7,45813F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY38,158$5.38M<0.01%+7,11713F-HR/ATimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…34,819$4.91M0.01%+11,99213F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding33,055$4.66M-30,499Timeline
VOLORIDGE INVESTMENT MANAGEMENT, LLC31,498$4.44M0.01%new13F-HRTimeline
HERALD INVESTMENT MANAGEMENT Ltd30,000$4.23M0.56%013F-HRTimeline
Informed Momentum Co LLC27,009$3.75M0.43%+2,74513F-HRTimeline
INVESTORS ASSET MANAGEMENT OF GEORGIA I…24,957$3.52M1.5%-25013F-HRTimeline
CASTLEARK MANAGEMENT LLC24,181$3.41M0.1%new13F-HRTimeline
Expect Equity LLC23,487$3.31M3.23%-8,72413F-HRTimeline
Nuveen, LLCin group TIAA22,484$3.17M<0.01%013F-HRTimelineGroup
Swiss National Bank20,400$2.88M<0.01%+50013F-HRTimeline
Legato Capital Management LLC20,179$2.85M0.31%-6,09413F-HRTimeline
POLEN CAPITAL MANAGEMENT LLC19,539$2.76M0.01%-84713F-HRTimeline
TUDOR INVESTMENT CORP ET AL19,425$2.74M0.02%new13F-HR/ATimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC17,155$2.42M0.01%-91813F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC15,966$2.25M<0.01%-5,68013F-HR/ATimelineGroup
RHUMBLINE ADVISERS15,653$2.21M<0.01%-31913F-HRTimeline
Manatuck Hill Partners, LLC15,000$2.12M0.72%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding14,980$2.11M+8,742Timeline
Perritt Capital Management Inc14,153$2M0.95%-1,17713F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/14,015$1.98M<0.01%-8,04013F-HR/ATimelineGroup
VICTORY CAPITAL MANAGEMENT INC13,780$1.94M<0.01%-4,74113F-HRTimeline
Creative Planningin group Creative Planning13,158$1.86M<0.01%+1,89113F-HRTimelineGroup
Potrero Capital Research LLC12,676$1.79M0.54%-20,82413F-HRTimeline
Quantbot Technologies LP11,804$1.66M0.05%new13F-HRTimeline
RITHOLTZ WEALTH MANAGEMENT11,582$1.63M0.03%-17813F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC10,084$1.42M<0.01%-14,56513F-HRTimelineGroup
PINNACLE ASSOCIATES LTD10,041$1.42M0.02%-4,02413F-HRTimeline
PARAGON ASSOCIATES & PARAGON ASSOCIATES…10,000$1.41M2.51%-30,00013F-HRTimeline
CenterBook Partners LP9,986$1.41M0.07%-6,60013F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc9,964$1.41M<0.01%-16313F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO9,915$1.4M<0.01%-2413F-HR/ATimelineGroup
ALLIANCEBERNSTEIN L.P.9,650$1.36M<0.01%013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…9,641$1.36M<0.01%+113F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC8,991$1.27M<0.01%new13F-HRTimelineGroup
CORSAIR CAPITAL MANAGEMENT, L.P.8,932$1.26M0.22%013F-HR/ATimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA8,681$1.23M<0.01%-15,97113F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN8,613$1.21M<0.01%+1,32113F-HRTimelineGroup
LPL Financial LLC8,549$1.21M<0.01%+6,38613F-HRTimeline
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A8,500$1.2M<0.01%13F-HRTimelineGroup
DekaBank Deutsche Girozentrale8,287$1.16M<0.01%013F-HRTimeline
BLAIR WILLIAM & CO/IL8,025$1.13M<0.01%-1,12513F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\7,504$1.06M<0.01%+43213F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD7,473$1.05M<0.01%+4,86213F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC7,246$1.02M<0.01%-25,53713F-HRTimelineGroup
Inspire Investing, LLCin group Inspire Investing, LLC7,023$990K0.1%new13F-HRTimelineGroup
FORMULA GROWTH LTD7,000$987K0.35%+1,00013F-HRTimeline
CAXTON ASSOCIATES LLP6,826$963K0.03%new13F-HRTimeline
PFG Advisors6,572$927K0.04%+29113F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP6,421$905K<0.01%new13F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management6,267$884K<0.01%new13F-HRTimelineGroup
Grandeur Peak Global Advisors, LLC6,263$883K0.12%-33713F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…6,221$877K<0.01%new13F-HRTimelineGroup
DARK FOREST CAPITAL MANAGEMENT LP6,132$865K0.03%new13F-HR/ATimeline
TD Asset Management Inc5,938$837K<0.01%new13F-HRTimeline
Qube Research & Technologies Ltd5,575$786K<0.01%new13F-HRTimeline
Koss-Olinger Consulting, LLC7,932$775K0.06%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.5,562$750K<0.01%-1,48613F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …5,271$743K<0.01%+1,31813F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…4,846$683K<0.01%-85313F-HRTimelineGroup
SG Americas Securities, LLC4,397$620K<0.01%+3,02413F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC4,359$615K<0.01%+1,25613F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC4,246$599K<0.01%+81213F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC4,119$581K0.01%-11113F-HRTimeline
Engineers Gate Manager LP4,108$579K0.01%new13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS4,090$577K<0.01%-2,82013F-HRTimeline
Verition Fund Management LLC4,058$572K<0.01%+20013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO4,052$571K<0.01%+86113F-HRTimelineGroup
Janney Montgomery Scott LLC4,008$565K<0.01%+14613F-HRTimeline
Semanteon Capital Management, LP3,996$564K0.71%new13F-HRTimeline
Numerai GP LLC3,916$552K0.08%+3813F-HRTimeline
BECK MACK & OLIVER LLC3,500$494K0.01%new13F-HRTimeline
Ashton Thomas Private Wealth, LLC3,492$492K0.01%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND3,388$478K<0.01%-80013F-HRTimeline
NAVELLIER & ASSOCIATES INC3,308$466K0.05%new13F-HRTimeline
GABELLI FUNDS LLCin group GAMCO Investors (Gabelli)3,264$460K<0.01%013F-HRTimelineGroup
Quantinno Capital Management LP3,263$460K<0.01%+5213F-HRTimeline
TWO SIGMA SECURITIES, LLC3,238$457K0.07%+59513F-HRTimeline
GLOBALT Investments LLC / GA3,228$455K0.02%new13F-HRTimeline
PDT Partners, LLC3,176$448K0.03%new13F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM3,112$439K<0.01%+9913F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…3,000$423K<0.01%013F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…2,918$411K<0.01%-2213F-HRTimeline
Police & Firemen's Retirement System of…2,881$406K<0.01%+44413F-HRTimeline
MACKENZIE FINANCIAL CORP2,794$394K<0.01%-3,17013F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC2,723$384K<0.01%-3,85313F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP2,575$363K<0.01%new13F-HRTimelineGroup
KLP KAPITALFORVALTNING AS2,400$338K<0.01%013F-HRTimeline
NorthCoast Asset Management LLC2,362$333K<0.01%-1,87913F-HRTimeline
Trexquant Investment LP2,303$325K<0.01%new13F-HRTimeline
AXQ CAPITAL, LP2,210$312K0.12%new13F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC2,164$305K<0.01%-1,21113F-HRTimelineGroup
Truvestments Capital LLC2,113$298K0.05%-1,86713F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…2,105$297K<0.01%013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…2,100$296K<0.01%013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS2,088$294K<0.01%+1,08813F-HRTimelineGroup
STRS OHIO1,800$254K<0.01%new13F-HRTimeline
ProShare Advisors LLC1,778$251K<0.01%-35413F-HRTimeline
Lido Advisors, LLCin group Lido Advisors, LLC1,642$232K<0.01%new13F-HRTimelineGroup
OMERS ADMINISTRATION Corp1,600$226K<0.01%new13F-HRTimeline
FourThought Financial Partners, LLC1,524$215K0.02%new13F-HRTimeline
HOHIMER WEALTH MANAGEMENT, LLC1,506$212K0.03%-1,05313F-HRTimeline
Steward Partners Investment Advisory, L…1,500$212K<0.01%-20013F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co1,477$207K<0.01%+71713F-HRTimelineGroup
Templeton & Phillips Capital Management…1,443$203K0.15%new13F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…1,437$203K<0.01%new13F-HRTimelineGroup
Ameritas Investment Partners, Inc.group of 2 filers holding1,369$193K-173Timeline
CANADA PENSION PLAN INVESTMENT BOARD1,000$141K<0.01%-60013F-HRTimeline
NewEdge Advisors, LLC979$138K<0.01%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC919$130K<0.01%-4,09813F-HRTimelineGroup
Versant Capital Management, Inc732$103K0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…730$103K<0.01%-30813F-HRTimelineGroup
Sterling Capital Management LLC720$102K<0.01%+43213F-HRTimeline
Covestor Ltd666$94K0.05%-14213F-HRTimeline
Creekmur Asset Management LLC624$88K0.01%-113F-HRTimeline
State of Alaska, Department of Revenue557$78K<0.01%new13F-HRTimeline
North Star Investment Management Corp.550$77.6K<0.01%013F-HRTimeline
AMALGAMATED BANK353$50K<0.01%013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.334$47.1K<0.01%+11513F-HRTimelineGroup
GROUP ONE TRADING LLC332$46.8K<0.01%new13F-HRTimeline
CWM, LLCin group CWM, LLC320$45K<0.01%+2813F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP259$37K<0.01%+15113F-HRTimelineGroup
QUADRANT CAPITAL GROUP LLC236$33.3K<0.01%new13F-HRTimeline
Smithfield Trust Co232$33K<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…216$30.5K<0.01%+5913F-HRTimelineGroup
Clearstead Advisors, LLC200$28.2K<0.01%013F-HRTimeline
PRINCIPAL SECURITIES, INC.in group PRINCIPAL FINANCIAL GROUP INC173$24.4K<0.01%-613F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC169$23.8K<0.01%013F-HRTimeline
GAMMA Investing LLC157$22.1K<0.01%+213F-HRTimeline
SIGNATUREFD, LLC150$21.2K<0.01%+2013F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\126$17.8K<0.01%013F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…119$16.8K<0.01%+2813F-HRTimeline
Global Retirement Partners, LLC100$14.1K<0.01%013F-HRTimeline
COMERICA BANK98$13.8K<0.01%013F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.92$13K<0.01%new13F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …84$12K<0.01%+1813F-HRTimelineGroup
Smartleaf Asset Management LLC64$8.98K<0.01%+713F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…49$6.91K<0.01%013F-HRTimelineGroup
WealthCollab, LLC46$6.49K<0.01%013F-HRTimeline
Farther Finance Advisors, LLC32$4.51K<0.01%+1413F-HRTimeline
Quarry LP28$3.95K<0.01%new13F-HRTimeline
Parallel Advisors, LLC27$3.81K<0.01%013F-HRTimeline
ROTHSCHILD INVESTMENT LLC20$2.82K<0.01%-513F-HRTimeline
True Wealth Design, LLC19$2.68K<0.01%013F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.17$2.4K<0.01%new13F-HRTimelineGroup
ORG Partners LLC9$1.27K<0.01%new13F-HRTimeline
Allworth Financial LP7$988<0.01%013F-HRTimeline
Rialto Wealth Management, LLC7$988<0.01%013F-HRTimeline
Tortoise Investment Management, LLC6$846<0.01%new13F-HRTimeline
Rise Advisors, LLC5$705<0.01%new13F-HRTimeline
MAI Capital Management4$565<0.01%-1213F-HRTimeline
Sunbelt Securities, Inc.2$282<0.01%new13F-HRTimeline
SIMPLEX TRADING, LLC5$00%new13F-HRTimelineValue filed as zero, left out of ratios.
ISTHMUS PARTNERS, LLC27,355$3.86K-20,00413F-HRTimelineValue about 1/1,000 of the price other filers imply, kept as filed and left out of ratios.

Events

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

    Accepted , ingested