DOSSIER · 13F Holders · Q3 2026
BELFA

BEL FUSE INC

116 institutions still hold BEL FUSE INC as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 077347201·116 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$285M
visible holders
Holders
116
filers reporting
Concentration
10.71%
MANGROVE PARTNERS IM, LLC #1
top holder share
AI Holders Summary · Q3 2026

116 institutions reported BELFA in Q3 2026. MANGROVE PARTNERS IM, LLC leads at 10.7% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
MANGROVE PARTNERS IM, LLC
CIK 0001535392
$30M105K2.00%Q2 2026
02
BROWN ADVISORY INC
CIK 0001345929
$22M143K0.03%Q4 2025
03
BlackRock, Inc.
CIK 0002012383
$20M101K0.00%Q3 2026
04
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$15M75K0.02%Q3 2026
05
Cable Car Capital, LP
CIK 0001699575
$14M46K0.29%Q2 2026
06
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$13M68K0.00%Q3 2026
07
FMR LLC
CIK 0000315066
$13M65K0.00%Q3 2026
08
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$13M64K0.00%Q3 2026
09
GABELLI FUNDS LLC
CIK 0001081407
$12M63K0.08%Q3 2026
10
MARSHALL WACE, LLP
CIK 0001318757
$12M62K0.01%Q3 2026
11
BANK OF AMERICA CORP /DE/
CIK 0000070858
$12M40K0.00%Q2 2026
12
GAMCO INVESTORS, INC. ET AL
CIK 0000807249
$10M53K0.10%Q3 2026
13
Vanguard Portfolio Management
CIK 0002100121· Index
$10M52K0.00%Q3 2026
14
Qube Research & Technologies Ltd
CIK 0001729829
$9M46K0.01%Q3 2026
15
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$9M45K0.00%Q3 2026
16
STATE STREET CORP
CIK 0000093751
$7M38K0.00%Q3 2026
17
Hound Partners, LLC
CIK 0001353316
$6M35K0.78%Q1 2026
18
INVESTORS ASSET MANAGEMENT OF GEORGIA INC /GA/ /ADV
CIK 0000867926
$5M25K1.78%Q3 2026
19
BRASADA CAPITAL MANAGEMENT, LP
CIK 0001643833
$5M17K0.87%Q2 2026
20
SANTA MONICA PARTNERS LP
CIK 0000904793
$5M23K2.77%Q3 2026
Page 1 of 6
96 more holders available. Log in →
Insiders at BEL FUSE INC
Johnson John S →Dunn Colin →Meccariello Joseph →