SIMPLEX TRADING, LLC

Position in IIIN — Insteel Industries Inc

CIK 1488542 CHICAGO, IL

Position in IIIN

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

Position Value

$575,521

+$532,870 QoQ

Shares Held

19,057

+1401.7% QoQ

Ownership

0.098%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#83

of 187 holders

Holding Since

Mar 2020

12 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $2,208,114 across 8 Metal Fabrication names. IIIN ranks #2 (26.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ATI	Ati Inc	6,203	$1,222,611
2	IIIN	Insteel Industries Inc This page	19,057	$575,521
3	GPGI	GPGI, Inc.	10,763	$170,593
4	WOR	Worthington Enterprises, Inc.	2,608	$140,206
5	MEC	Mayville Engineering Company, Inc.	1,529	$57,276
6	CMC	COMMERCIAL METALS Co	388	$24,347
7	PRLB	Proto Labs Inc	176	$14,345
8	TG	Tredegar Corp	404	$3,215

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$575,521	19,057	+1401.7%	Shares	Sole	2026-08-12
2026-03-31	$42,651	1,269	+1023.0%	Shares	Sole	2026-05-14
2025-09-30	$4,332	113	+175.6%	Shares	Sole	2025-11-12
2024-03-31	$1	41	+4000.0%	Shares	Sole	2024-04-25
2023-06-30	$31	1	-99.9%	Shares	Sole	2023-08-04
2021-12-31	$73,608	1,849	+163.0%	Shares	Sole	2022-02-23
2021-09-30	$26,749	703	0.0%	Shares	Sole	2021-10-28
2021-06-30	$22,601	703	-19.6%	Shares	Sole	2021-08-12
2020-12-31	$19,463	874	+62.2%	Shares	Sole	2021-02-02
2020-09-30	$10,079	539	+25.1%	Shares	Sole	2020-10-14
2020-06-30	$8,219	431	+45.1%	Shares	Sole	2020-07-13
2020-03-31	$3,935	297	—	Shares	Sole	2020-04-29
No filing history on record for this holder in this stock.