SIMPLEX TRADING, LLC

Position in BELFA — Bel Fuse Inc /Nj

CIK 1488542 CHICAGO, IL

Position in BELFA

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$549,849

+$525,423 QoQ

Shares Held

1,651

+1046.5% QoQ

Ownership

0.011%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#163

of 257 holders

Holding Since

Jun 2020

15 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $43,920,263 across 22 Electronic Components names. BELFA ranks #12 (1.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GLW	Corning Inc /Ny	90,456	$23,105,176
2	SANM	Sanmina Corp	11,674	$2,954,455
3	BHE	Benchmark Electronics Inc	28,840	$2,845,642
4	OUST	Ouster, Inc.	43,750	$2,735,250
5	TTMI	Ttm Technologies Inc	12,748	$2,384,130
6	VICR	Vicor Corp	5,258	$1,996,883
7	MEI	Methode Electronics Inc	105,193	$1,995,511
8	ROG	Rogers Corp	7,416	$1,214,221

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30 BELFB	$549,849	1,651	+1046.5%	Shares	Sole	2026-08-12
2025-12-31 BELFB	$24,426	144	+2780.0%	Shares	Sole	2026-02-11
2025-09-30 BELFB	$705	5	0.0%	Shares	Sole	2025-11-12
2025-03-31 BELFB	$374	5	-64.3%	Shares	Sole	2025-05-12
2024-12-31 BELFB	$1	14	-76.7%	Shares	Sole	2025-02-11
2023-03-31 BELFB	$2	60	-30.2%	Shares	Sole	2023-04-27
2022-12-31 BELFB	$2	86	+2.4%	Shares	Sole	2023-02-02
2022-09-30 BELFB	$2,121	84	+86.7%	Shares	Sole	2022-11-04
2022-03-31 BELFB	$802	45	+1400.0%	Shares	Sole	2022-05-02
2021-09-30 BELFB	$37	3	0.0%	Shares	Sole	2021-10-28
2021-06-30 BELFB	$43	3	-97.0%	Shares	Sole	2021-08-12
2021-03-31 BELFB	$1,989	100	-86.3%	Shares	Sole	2021-04-26
2020-12-31 BELFB	$10,971	730	+290.4%	Shares	Sole	2021-02-02
2020-09-30 BELFB	$1,997	187	+114.9%	Shares	Sole	2020-10-14
2020-06-30 BELFB	$933	87	—	Shares	Sole	2020-07-13
No filing history on record for this holder in this stock.