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Equibles

CITADEL ADVISORS LLC

Position in ARQ — Arq, Inc.

CIK 1423053 MIAMI, FL
Back to ARQ Full portfolio

Position in ARQ

as of Jun 30, 2026 · filed Sep 2, 2026
Position Value
$416,161
+$416,161 QoQ
Shares Held
163,201
Ownership
0.374%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#23
of 99 holders
Holding Since
Jun 2021
18 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ARQ Over Time

Shares Held

Position Value (USD)

Derivatives in ARQ

reported options exposure · as of Jun 30, 2026
CallValue
$185,130
CallShares
72,600
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Pollution & Treatment Controls

Industrials · as of Jun 30, 2026

CITADEL ADVISORS LLC holds $144,943,091 across 13 Pollution & Treatment Controls names. ARQ ranks #7 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 VLTO
Veralto Corp
 1,350,356 $119,749,569
2 CECO
Ceco Environmental Corp
 160,872 $14,597,524
3 ERII
Energy Recovery, Inc.
 476,236 $4,295,648
4 ZWS
Zurn Elkay Water Solutions Corp
 58,711 $2,966,666
5 PCT
PureCycle Technologies, Inc.
 233,963 $1,897,439
6 CDZI
Cadiz Inc
 125,105 $522,938
7 ARQ
Arq, Inc.
This page 		163,201 $416,161
8 ZONE
CleanCore Solutions, Inc.
 216,509 $177,536

All Filings in ARQ

Export CSV
42 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $185,130 72,600
2026-06-30 $416,161 163,201
2026-03-31 $28,416 11,100
2025-12-31 $207,320 63,401
2025-09-30 $1,451,274 202,692
2025-09-30 $824,832 115,200
2025-06-30 $240,039 44,700
2025-06-30 $1,115,671 207,760
2025-03-31 $156,792 37,600
2025-03-31 $1,246,074 298,819
2025-03-31 $90,072 21,600
2024-12-31 $76,593 10,118
2024-12-31 $12,112 1,600
2024-12-31 $710,066 93,800
2024-09-30 $55,765 9,500
2024-09-30 $214,842 36,600
2024-09-30 $57,613 9,815
2024-06-30 $122,007 20,100
2024-06-30 $203,345 33,500
2024-06-30 $117,957 19,433
2024-03-31 $272,341 42,028
2024-03-31 $123,120 19,000
2024-03-31 $80,352 12,400
2023-12-31 $4,470 1,500
2023-12-31 $156,851 52,635
2023-06-30 $131,289 70,586
2023-06-30 $744 400
2023-06-30 $17,484 9,400
2023-03-31 $396 200
2023-03-31 $122,438 61,838
2023-03-31 $198 100
2022-12-31 $140,186 57,690
2022-12-31 $5,832 2,400
2022-12-31 $2,916 1,200
2022-03-31 $261,905 42,107
2022-03-31 $129,998 20,900
2021-12-31 $68,848 10,400
2021-12-31 $246,508 37,237
2021-12-31 $119,822 18,100
2021-09-30 $157,174 24,597
2021-09-30 $167,418 26,200
2021-06-30 $446,222 60,219