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Equibles

JANE STREET GROUP, LLC

Position in FTEK — Fuel Tech, Inc.

CIK 1595888 NEW YORK, NY
Back to FTEK Full portfolio

Position in FTEK

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$241,957
+$155,586 QoQ
Shares Held
109,483
+54.6% QoQ
Ownership
0.351%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#13
of 42 holders
Holding Since
Jun 2021
9 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
$72,696
CallShares
46,600
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

JANE STREET GROUP, LLC holds $6,625,357 across 10 Pollution & Treatment Controls names. FTEK ranks #7 (3.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 ZWS
Zurn Elkay Water Solutions Corp
 43,688 $2,207,553
2 ARQ
Arq, Inc.
 509,225 $1,298,523
3 ADUR
Aduro Clean Technologies Inc.
 73,490 $1,158,202
4 ZONE
CleanCore Solutions, Inc.
 731,844 $600,111
5 VLTO
Veralto Corp
 5,206 $461,667
6 ERII
Energy Recovery, Inc.
 41,585 $375,096
7 FTEK
Fuel Tech, Inc.
This page 		109,483 $241,957
8 CDZI
Cadiz Inc
 55,849 $233,448

All Filings in FTEK

Export CSV
11 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $241,957 109,483
2026-03-31 $86,371 70,797
2025-12-31 $406,818 260,782
2025-12-31 $72,696 46,600
2025-09-30 $710,766 236,922
2022-12-31 $14,998 11,810
2022-09-30 $26,595 22,731
2022-06-30 $13,597 10,966
2021-12-31 $20,937 14,955
2021-06-30 $34,545 14,700
2021-06-30 $98,465 41,900