Stock Ownership/BELFB

BEL FUSE INC (BELFB): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in BELFB · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
15
13F filers
Aggregate Value
$176.5M
Across holders
Last Price
$247.98
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity8 increased7 reduced4 exited
Full exits: Point72 Asset Management, L.P., Magnetar Financial LLC, Man Group plc, Walleye Capital LLC
Institutional Holders of BELFB
↗
15 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund208K$69.2M39.2%0.1%Reduced$-2.0MQ2 2026
Fisher Asset Management, LLC
CIK 0000850529
Institutional Manager191K$63.5M36.0%0.0%Reduced$-8.3MQ2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund60K$19.8M11.2%0.0%Added—Q2 2026
Rockefeller Capital Management L.P.
CIK 0001739439
Hedge Fund22K$7.3M4.2%0.0%Added+$7.2MQ2 2026
Qube Research & Technologies Ltd
CIK 0001729829
Hedge Fund11K$3.8M2.1%0.0%Reduced$-159KQ2 2026
CAXTON ASSOCIATES LLP
CIK 0002051323
Hedge Fund8K$2.6M1.5%0.0%Added+$884KQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund7K$2.3M1.3%0.0%Added$-7.4MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund6K$2.0M1.1%0.0%Reduced+$1.4MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund5K$1.5M0.9%0.0%Added—Q2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund4K$1.4M0.8%0.0%Reduced$-3.5MQ2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$69.2M· 39.2% of total· 0.1% port· 208K sh· $-2.0M QoQ· Q2 2026
Fisher Asset Management, LLCReduced
Institutional Manager
$63.5M· 36.0% of total· 0.0% port· 191K sh· $-8.3M QoQ· Q2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$19.8M· 11.2% of total· 0.0% port· 60K sh· — QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$7.3M· 4.2% of total· 0.0% port· 22K sh· +$7.2M QoQ· Q2 2026
Qube Research & Technologies LtdReduced
Hedge Fund
$3.8M· 2.1% of total· 0.0% port· 11K sh· $-159K QoQ· Q2 2026
CAXTON ASSOCIATES LLPAdded
Hedge Fund
$2.6M· 1.5% of total· 0.0% port· 8K sh· +$884K QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$2.3M· 1.3% of total· 0.0% port· 7K sh· $-7.4M QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$2.0M· 1.1% of total· 0.0% port· 6K sh· +$1.4M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$1.5M· 0.9% of total· 0.0% port· 5K sh· — QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPReduced
Hedge Fund
$1.4M· 0.8% of total· 0.0% port· 4K sh· $-3.5M QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$1.3M· 0.7% of total· 0.0% port· 4K sh· — QoQ· Q2 2026
VOLORIDGE INVESTMENT MANAGEMENT, LLCReduced
Hedge Fund
$769K· 0.4% of total· 0.0% port· 2K sh· $-10.9M QoQ· Q2 2026
Lighthouse Investment Partners, LLCAdded
Hedge Fund
$421K· 0.2% of total· 0.0% port· 1K sh· — QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$302K· 0.2% of total· 0.0% port· 908 sh· — QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPReduced
Hedge Fund
$239K· 0.1% of total· 0.0% port· 718 sh· $-10.7M QoQ· Q2 2026
1–10 of 15
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