Fuel Tech

FTEK • NASDAQ

Fuel Tech is a industrial - pollution & treatment controls company in the industrials sector on NASDAQ, led by Vincent J. Arnone, with a market cap of $53.4M. As of Q3 2025, 23% of shares are held by 48 institutional investors, with GRACE & WHITE INC /NY as the largest holder at 4.8%.

President and Chief Executive OfficerVincent J. Arnone

Market Cap$53.4M

Industrial - Pollution & Treatment Controls

Industrials

Employees72.0

Websiteftek.com

Country

United States of America

Overview

Overview of institutional ownership in FTEK as of Q3 2025 with a market cap of $93.2M

All Institutions

Institutions: 48
Value Held: $21.4M
Shares Held: 7.1M
Avg Position: $446.6K
Median Position: $94.1K

Hedge Funds

Hedge Funds: 3
Value Held: $3.2M
Shares Held: 1.1M
Avg Position: $1.1M
Median Position: $381.1K

Ownership Breakdown

Institutional (non-HF)

19.58%

$18.3M

Hedge Funds

3.42%

$3.2M

Retail & Other

77.0%

$71.8M

Based on market cap of $93.2M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in FTEK as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
G GRACE & WHITE INC /NY RIA/Wealth	Marc Emil Ravitz President	$4.5M 0.93% of portfolio	4.80% 1.5M shares	Q3 2014 Held for 11y 2m	$481.2M
VANGUARD GROUP INC Institution	Salim Ramji CEO	$3.0M 0.00% of portfolio	3.26% 1.0M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	Peter Fitzhugh Brown CEO	$2.7M 0.00% of portfolio	2.89% 898.9K shares	Q1 2015 Held for 10y 8m	$75.8B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$1.6M 0.00% of portfolio	1.69% 523.8K shares	≤ Q2 2013 Held for 12y 5m+	$1.57T
B BlackRock, Inc. Institution	-	$1.2M 0.00% of portfolio	1.32% 410.4K shares	Q1 2017 Held for 8y 8m	$5.67T
P Peapod Lane Capital LLC Institution	-	$1.1M 0.96% of portfolio	1.15% 356.9K shares	Q4 2024 Held for 11 months	$111.8M
EAM Investors, LLC Long Only Manager	Derek John Gaertner CEO	$1.0M 0.12% of portfolio	1.09% 338.7K shares	Q2 2025 Held for 5 months	$873.4M
$US BANCORP \DE\ logo$ US BANCORP \DE\ Institution	Gunjan Kedia CEO	$914.3K 0.00% of portfolio	0.98% 304.8K shares	Q3 2014 Held for 11y 2m	$84.3B
M Mercuria Capital Strategies, LLC Institution	-	$720.0K 0.95% of portfolio	0.77% 240.0K shares	Q3 2025 Held for 2 months	$75.9M
J JANE STREET GROUP, LLC Institution	-	$710.8K 0.00% of portfolio	0.76% 236.9K shares	Q3 2025 Held for 2 months	$84.1B

Net Capital Flow

Institutional buying and selling activity for FTEK in Q3 2025

Traded: +$3.1M
Buyers: 28
Sellers: 12
Total Bought: +$4.6M
Total Sold: −$1.5M
Avg Position: $412.3K

Biggest Buyers

Institution	Net Bought	Current Position
M Mercuria Capital Strategies, LLC Institution	+$720.0K +240.0K shares	$720.0K 240.0K shares
J JANE STREET GROUP, LLC Institution	+$710.8K +236.9K shares	$710.8K 236.9K shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	+$630.0K +210.0K shares	$630.0K 210.0K shares
M Murchinson Ltd. Institution	+$450.0K +150.0K shares	$450.0K 150.0K shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	+$290.7K +96.9K shares	$381.1K 127.0K shares
VANGUARD GROUP INC Institution	+$218.7K +72.9K shares	$3.0M 1.0M shares
X XTX Topco Ltd Institution	+$168.0K +56.0K shares	$168.0K 56.0K shares
EAM Investors, LLC Long Only Manager	+$164.3K +54.8K shares	$1.0M 338.7K shares
DIMENSIONAL FUND ADVISORS LP Long Only Manager	+$162.9K +54.4K shares	$162.9K 54.4K shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	+$139.5K +46.5K shares	$2.7M 898.9K shares

Biggest Sellers

Institution	Net Sold	Current Position
P Peapod Lane Capital LLC Institution	−$931.7K −310.6K shares	$1.1M 356.9K shares
G GRACE & WHITE INC /NY RIA/Wealth	−$428.5K −142.8K shares	$4.5M 1.5M shares
Marshall Wace LLP Institution	−$63.2K −25.1K shares	Sold Off 0 shares
Founders Capital Management RIA/Wealth	−$45.0K −15.0K shares	$15.0K 5.0K shares
CORSAIR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$25.2K −10.0K shares	Sold Off 0 shares
NORTHERN TRUST CORP Institution	−$16.2K −5.4K shares	$94.3K 31.4K shares
S SBI Securities Co., Ltd. Institution	−$3.4K −1.1K shares	$2.5K 829.0 shares
RAYMOND JAMES FINANCIAL INC RIA/Wealth	−$2.8K −1.1K shares	Sold Off 0 shares
A Advisor Group Holdings, Inc. Institution	−$2.3K −800.0 shares	$3.5K 1.2K shares
B BlackRock, Inc. Institution	−$2.0K −654.0 shares	$1.2M 410.4K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited FTEK in Q3 2025

New Positions: 7
New Value: $1.5M
Exited Positions: 4
Exited Value: $92.2K

New Positions

Institution	Position Value
M Mercuria Capital Strategies, LLC Institution	$720.0K 240.0K shares
M Murchinson Ltd. Institution	$450.0K 150.0K shares
A AMERICAN CENTURY COMPANIES INC Institution	$109.7K 36.6K shares
Integrated Wealth Concepts LLC RIA/Wealth	$105.0K 35.0K shares
C Cubist Systematic Strategies, LLC Institution	$44.1K 14.7K shares
SPRINGBOK CAPITAL MANAGEMENT, LLC Fund of Funds	$39.7K 13.2K shares
C Covestor Ltd Institution	$39.6K 13.2K shares

Exited Positions

Institution	Previous Position
Marshall Wace LLP Institution	$63.2K 25.1K shares
CORSAIR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy	$25.2K 10.0K shares
RAYMOND JAMES FINANCIAL INC RIA/Wealth	$2.8K 1.1K shares
T Tower Research Capital LLC Institution	$963.0 382.0 shares

Options Activity

Institutions with the largest Call and Put options positions in FTEK as of Q3 2025

Call Positions: 3
Call Value: $815.2K
Put Positions: 2
Put Value: $47.5K

Call Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$374.7K 1.2K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$270.3K 901.0 contracts
W WOLVERINE TRADING, LLC Institution	$170.2K 581.0 contracts

Put Positions

Institution	Position Value
W WOLVERINE TRADING, LLC Institution	$47.5K 162.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	- - contracts

Most Committed Institutions

Institutions with FTEK as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
P Peapod Lane Capital LLC Institution	-	0.96% $1.1M	1.15% 356.9K shares	Q4 2024 Held for 11 months	$111.8M
M Mercuria Capital Strategies, LLC Institution	-	0.95% $720.0K	0.77% 240.0K shares	Q3 2025 Held for 2 months	$75.9M
G GRACE & WHITE INC /NY RIA/Wealth	Marc Emil Ravitz President	0.93% $4.5M	4.80% 1.5M shares	Q3 2014 Held for 11y 2m	$481.2M
EAM Investors, LLC Long Only Manager	Derek John Gaertner CEO	0.12% $1.0M	1.09% 338.7K shares	Q2 2025 Held for 5 months	$873.4M
M Murchinson Ltd. Institution	-	0.09% $450.0K	0.48% 150.0K shares	Q3 2025 Held for 2 months	$491.3M
INTEGRITY WEALTH ADVISORS, INC. RIA/Wealth	Scott Everett Sanders CCO	0.08% $210.0K	0.23% 70.0K shares	Q2 2025 Held for 5 months	$278.2M
ESSEX INVESTMENT MANAGEMENT CO LLC Long Only Manager	Nancy Beth Prial CEO	0.04% $231.8K	0.25% 77.3K shares	Q3 2022 Held for 3y 2m	$652.5M
C Covestor Ltd Institution	-	0.02% $39.6K	0.04% 13.2K shares	Q3 2025 Held for 2 months	$179.7M
GSA CAPITAL PARTNERS LLP Hedge Fund•Quant	David Khabie-Zeitoune CEO	0.01% $109.5K	0.12% 36.5K shares	Q1 2025 Held for 8 months	$1.1B
X XTX Topco Ltd Institution	-	0.01% $168.0K	0.18% 56.0K shares	Q4 2024 Held for 11 months	$1.9B

Hedge Fund Spotlight

Discover hedge funds investing in FTEK

GSA CAPITAL PARTNERS LLP

Hedge Fund • Quant

Portfolio ManagerDavid Khabie-Zeitoune

Portfolio Value: $1.1B
Positions: 1,504
Last Reported: Q3 2025

Sector Allocation

Position in Fuel Tech

Market Value: $109.5K
Shares Held: 36.5K
Portfolio Weight: 0.01%
Owned Since: 2025-Q1

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