GSA CAPITAL PARTNERS LLP

Position in FTEK — Fuel Tech, Inc.

CIK 1362033 LONDON, X0

Position in FTEK

as of Mar 31, 2026 · filed May 8, 2026 Compact

Position Value

$300,427

+$250,490 QoQ

Shares Held

246,252

+669.3% QoQ

Ownership

0.790%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2021

7 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Mar 31, 2026

GSA CAPITAL PARTNERS LLP holds $4,685,555 across 5 Pollution & Treatment Controls names. FTEK ranks #4 (6.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ERII	Energy Recovery, Inc.	313,647	$3,158,425
2	ARQ	Arq, Inc.	289,158	$740,244
3	ZWS	Zurn Elkay Water Solutions Corp	10,555	$473,286
4	FTEK	Fuel Tech, Inc. This page	246,252	$300,427
5	ZONE	CleanCore Solutions, Inc.	37,004	$13,173

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$300,427	246,252	+669.3%	Shares	Sole	2026-05-08
2025-12-31	$49,937	32,011	-12.3%	Shares	Sole	2026-02-06
2025-09-30	$109,470	36,490	-54.0%	Shares	Sole	2025-11-07
2025-03-31	$83,209	79,247	-51.3%	Shares	Sole	2025-05-08
2021-12-31	$227,584	162,560	+54.2%	Shares	Sole	2022-02-14
2021-09-30	$183,446	105,429	+609.6%	Shares	Sole	2021-11-12
2021-06-30	$34,913	14,857	—	Shares	Sole	2021-08-05
No filing history on record for this holder in this stock.