GROUP ONE TRADING LLC

Position in GPGI — GPGI, Inc.

CIK 932540 CHICAGO, IL

Position in GPGI

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$5,389

-$4,461,979 QoQ

Shares Held

340

-99.9% QoQ

Ownership

0.000%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#166

of 194 holders

Holding Since

Jun 2024

6 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Jun 30, 2026

GROUP ONE TRADING LLC holds $144,033 across 6 Metal Fabrication names. GPGI ranks #5 (3.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AP	Ampco Pittsburgh Corp	7,005	$60,593
2	IIIN	Insteel Industries Inc	1,222	$36,904
3	CRS	Carpenter Technology Corp	47	$28,991
4	TG	Tredegar Corp	1,480	$11,780
5	GPGI	GPGI, Inc. This page	340	$5,389
6	WOR	Worthington Enterprises, Inc.	7	$376

6 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$5,389	340	-99.9%	Shares	Sole	2026-08-14
2025-12-31	$4,467,368	231,710	-6.4%	Shares	Sole	2026-02-12
2025-09-30	$5,154,553	247,577	+538.4%	Shares	Sole	2025-11-12
2025-06-30	$546,410	38,780	+256.7%	Shares	Sole	2025-08-14
2025-03-31	$118,189	10,873	+10773.0%	Shares	Sole	2025-05-14
2024-06-30	$679	100	—	Shares	Sole	2024-08-14
No filing history on record for this holder in this stock.