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Disclosery

BELFA BEL FUSE INC

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COMMON STOCK (common), issuer CIK 729580

91 managers (96 13F filers) reported a position in BELFA shares at 2026-03-31, 1,162,110 shares in all. 22 filers opened a position and 6 filers sold out during the quarter.

Managers
91
13F filers
96
New
22
Added
29
Reduced
26
Sold out
6
Shares held by filers
1,162,110

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
HIGHBRIDGE CAPITAL MANAGEMENT LLC138,469$25M1.58%new13F-HRTimeline
BROWN ADVISORY INCin group BROWN ADVISORY INC134,404$24.2M0.04%-8,65713F-HRTimelineGroup
GAMCO Investors (Gabelli)group of 2 filers holding116,800$21M-13,838Timeline
VANGUARD GROUP INCgroup of 4 filers holding98,856$17.8MnewTimeline
BlackRock, Inc.in group BlackRock, Inc.91,177$16.4M<0.01%+5,40013F-HRTimelineGroup
FMR LLCin group FMR LLC77,538$14M<0.01%-8,70013F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC68,253$12.3M0.02%+26,20013F-HRTimeline
Cable Car Capital, LP46,763$8.43M2.91%013F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP44,887$8.09M<0.01%-9,78313F-HRTimelineGroup
Hound Partners, LLCin group Hound Partners, LLC34,814$6.27M0.79%-2,82613F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC34,785$6.27M<0.01%-2,82113F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP28,790$5.19M<0.01%+7,08413F-HRTimelineGroup
INVESTORS ASSET MANAGEMENT OF GEORGIA I…25,781$4.65M1.9%-16013F-HRTimeline
SANTA MONICA PARTNERS LP23,434$4.22M2.36%013F-HRTimeline
BRASADA CAPITAL MANAGEMENT, LP17,723$3.48M0.64%new13F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC13,167$2.37M<0.01%+7,14513F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …12,375$2.23M<0.01%-2,10013F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP11,738$2.12M<0.01%+39013F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO9,681$1.74M<0.01%+5,07613F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP9,658$1.74M<0.01%+7,06113F-HRTimelineGroup
Janney Montgomery Scott LLC9,556$1.72M<0.01%-1,18413F-HRTimeline
Qube Research & Technologies Ltd9,157$1.65M<0.01%+4,92713F-HRTimeline
UBS Group AGgroup of 2 filers holding7,571$1.36M+779Timeline
MORGAN STANLEYin group MORGAN STANLEY7,475$1.35M<0.01%+2,64513F-HRTimelineGroup
Nitor Capital Management LLC7,000$1.26M0.97%013F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC5,225$942K<0.01%+2,16413F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd5,222$941K0.02%new13F-HRTimelineGroup
HERALD INVESTMENT MANAGEMENT Ltd5,000$898K0.13%-2,50013F-HRTimeline
Sagefield Capital LPin group Sagefield Capital LP4,416$796K0.06%-1,52613F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp4,156$749K<0.01%-6013F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.3,748$675K<0.01%+2,42413F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD3,690$665K<0.01%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC3,376$608K<0.01%+3,20213F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO3,310$596K<0.01%+1,42813F-HR/ATimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS3,041$548K<0.01%+2,68713F-HRTimelineGroup
Trexquant Investment LP2,989$539K<0.01%new13F-HRTimeline
RHUMBLINE ADVISERS2,740$494K<0.01%-6813F-HRTimeline
PenderFund Capital Management Ltd.2,700$487K0.08%+1,10013F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC2,576$464K0.04%-45013F-HRTimeline
Engineers Gate Manager LP2,300$414K0.01%new13F-HRTimeline
HRT FINANCIAL LP2,255$406K<0.01%+24213F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC2,233$402K<0.01%new13F-HRTimelineGroup
STRS OHIO2,200$396K<0.01%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/1,825$329K<0.01%+3513F-HRTimelineGroup
Triasima Portfolio Management inc.1,742$314K0.05%013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\1,308$236K<0.01%+57713F-HRTimelineGroup
MANGROVE PARTNERS IM, LLC1,276$230K0.02%new13F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC1,249$225K<0.01%-5,15813F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC1,190$214K<0.01%-11,53913F-HRTimelineGroup
Abel Hall, LLC1,138$205K0.04%new13F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/1,120$202K<0.01%new13F-HRTimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …1,064$199K<0.01%-1,84113F-HRTimelineGroup
FNY Investment Advisers, LLC1,060$191K0.08%-44013F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…1,053$190K<0.01%-2913F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND900$162K<0.01%013F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…803$145K<0.01%+8513F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN620$112K<0.01%-1,26313F-HR/ATimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources563$101K<0.01%+50913F-HRTimelineGroup
Police & Firemen's Retirement System of…503$90.6K<0.01%013F-HRTimeline
BLAIR WILLIAM & CO/IL500$90.1K<0.01%013F-HRTimeline
Quantbot Technologies LP475$85.6K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…432$77.8K<0.01%+35513F-HRTimelineGroup
Sunbelt Securities, Inc.400$72.1K<0.01%013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC322$58K<0.01%-2,24013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…305$55K<0.01%+30013F-HRTimelineGroup
IFP Advisors, Inc276$49.7K<0.01%new13F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…171$30.8K<0.01%013F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…170$30.6K<0.01%+1913F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc145$26.1K<0.01%+2713F-HRTimelineGroup
CWM, LLCin group CWM, LLC118$21.3K<0.01%+513F-HRTimelineGroup
GAMMA Investing LLC96$17.3K<0.01%+213F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…87$15.7K<0.01%-1213F-HRTimeline
Sterling Capital Management LLC54$9.73K<0.01%-3913F-HRTimeline
NISA INVESTMENT ADVISORS, LLC31$5.59K<0.01%013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA20$4K<0.01%-3113F-HRTimelineGroup
Optiver Holding B.V.in group Optiver Holding B.V.22$3.96K<0.01%013F-HR/ATimelineGroup
Farther Finance Advisors, LLC12$2.24K<0.01%013F-HRTimeline
Root Financial Partners, LLC7$1.26K<0.01%new13F-HRTimeline
Blue Trust, Inc.6$1.08K<0.01%new13F-HRTimeline
RAFFA WEALTH MANAGEMENT, LLC5$901<0.01%013F-HRTimeline
Allworth Financial LP2$361<0.01%new13F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC2$360<0.01%-213F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…2$360<0.01%+113F-HR/ATimelineGroup
SBI Securities Co., Ltd.2$360<0.01%new13F-HRTimeline
MAI Capital Management1$181<0.01%new13F-HRTimeline
True Wealth Design, LLC1$181<0.01%013F-HRTimeline
Advisory Services Network, LLC1$180<0.01%new13F-HRTimeline
Hughes Financial Services, LLC1$180<0.01%new13F-HRTimeline
Essential Partners LLC1$180<0.01%013F-HRTimeline
Covestor Ltd0$00%new13F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.
Keating Financial Advisory Services, In…0$00%new13F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.