Position in FTEK
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$270,106
-$516,160 QoQ
Shares Held
221,399
-56.1% QoQ
Ownership
0.710%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2020
20 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, 2025CallValue
$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 Mar 31, 2026CITADEL ADVISORS LLC holds $43,513,766 across 8 Pollution & Treatment Controls names. FTEK ranks #6 (0.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VLTO |
Veralto Corp
|
185,893 | $16,436,658 | |
| 2 | CECO |
Ceco Environmental Corp
|
217,386 | $12,951,857 | |
| 3 | ZWS |
Zurn Elkay Water Solutions Corp
|
166,123 | $7,448,954 | |
| 4 | ERII |
Energy Recovery, Inc.
|
449,436 | $4,525,820 | |
| 5 | PCT |
PureCycle Technologies, Inc.
|
342,774 | $1,778,996 | |
| 6 | FTEK |
Fuel Tech, Inc.
This page
|
221,399 | $270,106 | |
| 7 | BCHT |
Birchtech Corp.
|
50,994 | $96,888 | |
| 8 | ZONE |
CleanCore Solutions, Inc.
|
12,605 | $4,487 |
All Filings in FTEK
Export CSV
47 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $270,106 | 221,399 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $49,608 | 31,800 | Call | Defined | 2026-02-17 | |
| 2025-12-31 | $786,266 | 504,017 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $374,700 | 124,900 | Call | Defined | 2025-11-14 | |
| 2025-09-30 | $381,069 | 127,023 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $75,892 | 30,116 | Shares | Defined | 2025-08-14 | |
| 2025-06-30 | $310,464 | 123,200 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $31,248 | 12,400 | Call | Defined | 2025-08-14 | |
| 2025-03-31 | $315 | 300 | Call | Defined | 2025-05-15 | |
| 2025-03-31 | $1,050 | 1,000 | Put | Defined | 2025-05-15 | |
| 2025-03-31 | $182,995 | 174,281 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $25,620 | 24,400 | Call | Defined | 2025-02-14 | |
| 2024-12-31 | $259,933 | 247,556 | Shares | Defined | 2025-02-14 | |
| 2024-12-31 | $735 | 700 | Put | Defined | 2025-02-14 | |
| 2024-09-30 | $10,500 | 10,000 | Put | Defined | 2024-11-14 | |
| 2024-09-30 | $134,312 | 127,917 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $29,820 | 28,400 | Call | Defined | 2024-11-14 | |
| 2024-06-30 | $94,722 | 88,526 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $214 | 200 | Call | Defined | 2024-08-14 | |
| 2024-06-30 | $535 | 500 | Put | Defined | 2024-08-14 | |
| 2024-03-31 | $1,089 | 900 | Call | Defined | 2024-05-15 | |
| 2024-03-31 | $58,102 | 48,019 | Shares | Defined | 2024-05-15 | |
| 2024-03-31 | $7,865 | 6,500 | Put | Defined | 2024-05-15 | |
| 2023-12-31 | $47,823 | 45,546 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $1,365 | 1,300 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $1,050 | 1,000 | Call | Defined | 2024-02-14 | |
| 2023-09-30 | $22,184 | 18,800 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $15,777 | 13,371 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $354 | 300 | Put | Defined | 2023-11-14 | |
| 2023-06-30 | $399 | 300 | Put | Defined | 2023-08-14 | |
| 2023-06-30 | $46,018 | 34,600 | Call | Defined | 2023-08-14 | |
| 2023-06-30 | $53,932 | 40,551 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $123,092 | 96,166 | Shares | Defined | 2023-05-15 | |
| 2023-03-31 | $8,832 | 6,900 | Call | Defined | 2023-05-15 | |
| 2023-03-31 | $1,152 | 900 | Put | Defined | 2023-05-15 | |
| 2022-12-31 | $7,112 | 5,600 | Call | Defined | 2023-02-14 | |
| 2022-12-31 | $1,016 | 800 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $50,477 | 39,746 | Shares | Defined | 2023-02-14 | |
| 2022-06-30 | $34,596 | 27,900 | Put | Defined | 2022-08-15 | |
| 2022-03-31 | $28,275 | 19,500 | Call | Defined | 2022-05-16 | |
| 2021-12-31 | $166,463 | 118,903 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $45,936 | 26,400 | Call | Defined | 2021-11-15 | |
| 2021-06-30 | $43,475 | 18,500 | Put | Defined | 2021-08-16 | |
| 2021-06-30 | $89,535 | 38,100 | Call | Defined | 2021-08-16 | |
| 2020-12-31 | $181,196 | 46,700 | Call | Defined | 2021-02-16 | |
| 2020-12-31 | $134,317 | 34,618 | Shares | Defined | 2021-02-16 | |
| 2020-12-31 | $74,884 | 19,300 | Put | Defined | 2021-02-16 | |
| No filing history on record for this holder in this stock. | ||||||