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Equibles

CITADEL ADVISORS LLC

Position in FTEK — Fuel Tech, Inc.

CIK 1423053 MIAMI, FL
Back to FTEK Full portfolio

Position in FTEK

as of Jun 30, 2026 · filed Sep 2, 2026
Position Value
$42,144
-$227,962 QoQ
Shares Held
19,070
-91.4% QoQ
Ownership
0.061%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#20
of 42 holders
Holding Since
Dec 2020
22 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in FTEK Over Time

Shares Held

Position Value (USD)

Derivatives in FTEK

reported options exposure · as of Dec 31, 2025
CallValue
$49,608
CallShares
31,800
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. FTEK ranks #12 (0.0% 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.
 163,201 $416,161
8 ZONE
CleanCore Solutions, Inc.
 216,509 $177,536

All Filings in FTEK

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $42,144 19,070
2026-03-31 $270,106 221,399
2025-12-31 $49,608 31,800
2025-12-31 $786,266 504,017
2025-09-30 $374,700 124,900
2025-09-30 $381,069 127,023
2025-06-30 $75,892 30,116
2025-06-30 $310,464 123,200
2025-06-30 $31,248 12,400
2025-03-31 $315 300
2025-03-31 $1,050 1,000
2025-03-31 $182,995 174,281
2024-12-31 $25,620 24,400
2024-12-31 $259,933 247,556
2024-12-31 $735 700
2024-09-30 $10,500 10,000
2024-09-30 $134,312 127,917
2024-09-30 $29,820 28,400
2024-06-30 $94,722 88,526
2024-06-30 $214 200
2024-06-30 $535 500
2024-03-31 $1,089 900
2024-03-31 $58,102 48,019
2024-03-31 $7,865 6,500
2023-12-31 $47,823 45,546
2023-12-31 $1,365 1,300
2023-12-31 $1,050 1,000
2023-09-30 $22,184 18,800
2023-09-30 $15,777 13,371
2023-09-30 $354 300
2023-06-30 $399 300
2023-06-30 $46,018 34,600
2023-06-30 $53,932 40,551
2023-03-31 $123,092 96,166
2023-03-31 $8,832 6,900
2023-03-31 $1,152 900
2022-12-31 $7,112 5,600
2022-12-31 $1,016 800
2022-12-31 $50,477 39,746
2022-06-30 $34,596 27,900
2022-03-31 $28,275 19,500
2021-12-31 $166,463 118,903
2021-09-30 $45,936 26,400
2021-06-30 $43,475 18,500
2021-06-30 $89,535 38,100
2021-03-31 $49,612 15,800
2021-03-31 $270,354 86,100
2021-03-31 $147,297 46,910
2020-12-31 $181,196 46,700
2020-12-31 $134,317 34,618