SIMPLEX TRADING, LLC

Position in ARQ — Arq, Inc.

CIK 1488542 CHICAGO, IL

Position in ARQ

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

Position Value

$38,260

-$18,011 QoQ

Shares Held

15,004

-31.7% QoQ

Ownership

0.034%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#58

of 100 holders

Holding Since

Dec 2021

11 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $1,932,554 across 5 Pollution & Treatment Controls names. ARQ ranks #3 (2.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	PCT	PureCycle Technologies, Inc.	165,828	$1,344,865
2	CECO	Ceco Environmental Corp	5,730	$519,940
3	ARQ	Arq, Inc. This page	15,004	$38,260
4	FTEK	Fuel Tech, Inc.	10,491	$23,185
5	ERII	Energy Recovery, Inc.	699	$6,304

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$38,260	15,004	-31.7%	Shares	Sole	2026-08-12
2026-03-31	$56,271	21,981	+851.1%	Shares	Sole	2026-05-14
2025-12-31	$7,556	2,311	-63.0%	Shares	Sole	2026-02-11
2025-03-31	$26,054	6,248	+2933.0%	Shares	Sole	2025-05-12
2024-06-30	$1	206	-59.6%	Shares	Sole	2024-07-25
2023-12-31	$1	510	-29.4%	Shares	Sole	2024-02-02
2023-03-31	$1	722	-65.0%	Shares	Sole	2023-04-27
2022-12-31	$5,005	2,060	+154.6%	Shares	Sole	2023-02-02
2022-09-30	$2,208	809	-96.5%	Shares	Sole	2022-11-04
2022-03-31	$143,004	22,991	+88.1%	Shares	Sole	2022-05-02
2021-12-31	$80,936	12,226	—	Shares	Sole	2022-02-23
No filing history on record for this holder in this stock.