DIMENSIONAL FUND ADVISORS LP

Position in FTEK — Fuel Tech, Inc.

CIK 354204 AUSTIN, TX

Position in FTEK

as of Mar 31, 2026 · filed May 7, 2026 Compact

Position Value

$23,701

-$56,168 QoQ

Shares Held

19,428

-62.1% QoQ

Ownership

0.062%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Dec 2020

15 quarters on record

Voting authority Sole 31% Shared 69% None 0%

Industrials · as of Mar 31, 2026

DIMENSIONAL FUND ADVISORS LP holds $337,652,274 across 6 Pollution & Treatment Controls names. FTEK ranks #6 (0.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VLTO	Veralto Corp	1,788,026	$158,097,256
2	ZWS	Zurn Elkay Water Solutions Corp	2,563,031	$114,926,308
3	CECO	Ceco Environmental Corp	903,291	$53,818,075
4	ERII	Energy Recovery, Inc.	877,431	$8,835,729
5	ARQ	Arq, Inc.	762,190	$1,951,205
6	FTEK	Fuel Tech, Inc. This page	19,428	$23,701

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$23,701	19,428	-62.1%	Shares	Sole	2026-05-07
2025-12-31	$79,869	51,199	-5.9%	Shares	Sole	2026-02-12
2025-09-30	$163,203	54,401	+270.7%	Shares	Sole	2025-11-12
2023-09-30	$17,318	14,677	0.0%	Shares	Sole	2023-11-09
2023-06-30	$19,520	14,677	-37.8%	Shares	Sole	2023-08-09
2023-03-31	$30,196	23,591	0.0%	Shares	Sole	2023-05-12
2022-12-31	$29,960	23,591	0.0%	Shares	Sole	2023-02-09
2022-09-30	$27,601	23,591	-7.8%	Shares	Sole	2022-11-10
2022-06-30	$31,719	25,581	0.0%	Shares	Sole	2022-08-12
2022-03-31	$37,092	25,581	0.0%	Shares	Defined	2022-05-13
2021-12-31	$35,813	25,581	-45.6%	Shares	Defined	2022-02-09
2021-09-30	$81,748	46,982	0.0%	Shares	Defined	2021-11-12
2021-06-30	$110,407	46,982	+58.1%	Shares	Defined	2021-08-12
2021-03-31	$93,292	29,711	+78.8%	Shares	Defined	2021-05-14
2020-12-31	$64,489	16,621	—	Shares	Sole	2021-03-08
No filing history on record for this holder in this stock.