DOSSIER · 13F Holders · Q1 2026
BELFB

BEL FUSE INC

249 institutions still hold BEL FUSE INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 077347300·249 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$1.6B
visible holders
Holders
249
filers reporting
Concentration
10.78%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

249 institutions reported BELFB in Q1 2026. BlackRock, Inc. leads at 10.8% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$168M847K0.00%Q1 2026
02
WASATCH ADVISORS LP
CIK 0000814133
$163M489K1.07%Q2 2026
03
PRICE T ROWE ASSOCIATES INC /MD/
CIK 0000080255
$153M773K0.02%Q1 2026
04
JANUS HENDERSON GROUP PLC
CIK 0001274173
$151M760K0.07%Q1 2026
05
FMR LLC
CIK 0000315066
$125M631K0.01%Q1 2026
06
T. Rowe Price Investment Management, Inc.
CIK 0001897612
$113M573K0.08%Q1 2026
07
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$97M489K0.00%Q1 2026
08
TEMA ETFS LLC
CIK 0002056807
$68M203K2.18%Q2 2026
09
Vanguard Portfolio Management
CIK 0002100121· Index
$65M329K0.00%Q1 2026
10
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$61M308K0.00%Q1 2026
11
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$51M257K0.01%Q1 2026
12
JPMORGAN CHASE & CO
CIK 0000019617
$49M249K0.00%Q1 2026
13
STATE STREET CORP
CIK 0000093751
$48M242K0.00%Q1 2026
14
Fisher Asset Management, LLC
CIK 0000850529
$43M216K0.01%Q1 2026
15
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$42M214K0.07%Q1 2026
16
THRIVENT FINANCIAL FOR LUTHERANS
CIK 0000314984
$37M188K0.07%Q1 2026
17
LORD, ABBETT & CO. LLC
CIK 0000728100
$33M167K0.11%Q1 2026
18
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$31M156K0.00%Q1 2026
19
LOOMIS SAYLES & CO L P
CIK 0000312348
$29M146K0.04%Q1 2026
20
Tidal Investments LLC
CIK 0001600064
$28M142K0.06%Q1 2026
Page 1 of 13
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Insiders at BEL FUSE INC
Kozlovsky SuzanneSegall Mark BHutkin LynnBerry JosephLai Kenneth Koon KeungBernstein DanielDawson StephenSmith Rita V