RENAISSANCE TECHNOLOGIES LLC

Position in ARQ — Arq, Inc.

CIK 1037389 NEW YORK, NY

Position in ARQ

as of Jun 30, 2026 · filed Aug 13, 2026 Compact

Position Value

$1,525,050

+$473,991 QoQ

Shares Held

598,059

+45.7% QoQ

Ownership

1.37%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

of 100 holders

Holding Since

Sep 2020

21 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Jun 30, 2026

RENAISSANCE TECHNOLOGIES LLC holds $117,396,053 across 5 Pollution & Treatment Controls names. ARQ ranks #5 (1.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VLTO	Veralto Corp	1,078,600	$95,650,248
2	ZWS	Zurn Elkay Water Solutions Corp	284,693	$14,385,537
3	PCT	PureCycle Technologies, Inc.	419,100	$3,398,901
4	FTEK	Fuel Tech, Inc.	1,102,406	$2,436,317
5	ARQ	Arq, Inc. This page	598,059	$1,525,050

21 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,525,050	598,059	+45.7%	Shares	Sole	2026-08-13
2026-03-31	$1,051,059	410,570	-0.4%	Shares	Sole	2026-05-14
2025-12-31	$1,348,217	412,299	+485.8%	Shares	Sole	2026-02-12
2025-09-30	$503,927	70,381	-65.6%	Shares	Sole	2025-11-13
2025-06-30	$1,098,422	204,548	-21.1%	Shares	Sole	2025-08-13
2025-03-31	$1,080,864	259,200	+210.0%	Shares	Sole	2025-05-14
2024-12-31	$632,852	83,600	+526.5%	Shares	Sole	2025-02-13
2024-06-30	$81,004	13,345	-55.0%	Shares	Sole	2024-08-09
2024-03-31	$192,099	29,645	+27.5%	Shares	Sole	2024-05-13
2023-12-31	$69,270	23,245	+30.3%	Shares	Sole	2024-02-13
2023-09-30	$31,764	17,845	-77.8%	Shares	Sole	2023-11-14
2023-06-30	$149,542	80,399	-49.2%	Shares	Sole	2023-08-11
2023-03-31	$313,325	158,245	+44.5%	Shares	Sole	2023-05-12
2022-12-31	$266,194	109,545	+102.7%	Shares	Sole	2023-02-13
2022-09-30	$147,542	54,045	-24.6%	Shares	Sole	2022-11-14
2022-06-30	$336,015	71,645	+11.9%	Shares	Sole	2022-08-12
2022-03-31	$398,104	64,004	-32.7%	Shares	Sole	2022-05-13
2021-12-31	$629,197	95,045	+12.1%	Shares	Sole	2022-02-11
2021-09-30	$541,635	84,763	-47.1%	Shares	Sole	2021-11-12
2021-06-30	$1,187,823	160,300	+397.8%	Shares	Sole	2021-08-13
2020-09-30	$130,732	32,200	—	Shares	Sole	2020-11-13
No filing history on record for this holder in this stock.