Fuel Tech, Inc. (FTEK) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

30,300,000Shares Outstanding

959,677Shares held by institutions

$1,314,757Value of institutional holdings

24.53%Institutional ownership %

20.89%Shares Changed QoQ

42No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

A total of 42 institutions have reported a stake in Fuel Tech, Inc. (NASDAQ:FTEK) as of December 2025, according to recent 13F filings with the SEC.

Institutional ownership in Fuel Tech edged up to 24.5% in December 2025, compared to 23.4% in September 2025.
The company experienced a 20.89% quarterly change in institutional shares held, alongside an increase of 7.69% in total owners annually.
Among the 42 institutional holders of Fuel Tech, 21 added to their stakes while 8 trimmed their positions and 13 held steady.
This class of investors increased its holdings in Fuel Tech to 7.43Mn shares for the 13F-cycle ending December 2025, up by 1.28Mn shares quarter on quarter, and up 470.65K shares year over year.
GRACE & WHITE INC /NY continues to be the largest institutional holder of Fuel Tech as of December 31, 2025, with a position of 1.49Mn shares, representing 4.90% of the company's outstanding stock.
Among the most significant buyers of Fuel Tech during December 2025 were CITADEL ADVISORS LLC (376.99K), RENAISSANCE TECHNOLOGIES LLC (249.09K), XTX Topco Ltd (178.30K), TWO SIGMA INVESTMENTS, LP (126.16K), VANGUARD GROUP INC (112.14K).
Leading sellers of Fuel Tech stock in December 2025 included SIMPLEX TRADING, LLC (39.20K), GRACE & WHITE INC /NY (5.80K), GEODE CAPITAL MANAGEMENT, LLC (4.88K), GSA CAPITAL PARTNERS LLP (4.48K), DIMENSIONAL FUND ADVISORS LP (3.20K).
The top 10 institutional holders of Fuel Tech for the quarter ending December 2025 included GRACE & WHITE INC /NY (1.49Mn), RENAISSANCE TECHNOLOGIES LLC (1.15Mn), VANGUARD GROUP INC (1.13Mn), GEODE CAPITAL MANAGEMENT, LLC (518.94K), CITADEL ADVISORS LLC (504.02K), BlackRock, Inc. (410.36K), Peapod Lane Capital LLC (359.64K), JANE STREET GROUP, LLC (307.38K), US BANCORP \DE\ (304.78K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (237.98K).

42 Institutional Holders

959,677 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
GRACE & WHITE INC /NY	31 Dec, 2025	1,485,883	-5,800	-0.39%	$2,317,977.00
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	1,147,995	249,089	27.71%	$1,790,872.00
VANGUARD GROUP INC	31 Dec, 2025	1,126,003	112,139	11.06%	$1,756,565.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	518,939	-4,879	-0.93%	$809,643.00
CITADEL ADVISORS LLC	31 Dec, 2025	504,017	376,994	296.79%	$786,266.00
BlackRock, Inc.	31 Dec, 2025	410,364	0	0.00%	$640,168.00
Peapod Lane Capital LLC	31 Dec, 2025	359,643	2,705	0.76%	$561,043.00
JANE STREET GROUP, LLC	31 Dec, 2025	307,382	70,460	29.74%	$479,516.00
US BANCORP \DE\	31 Dec, 2025	304,776	0	0.00%	$475,451.00
SUSQUEHANNA INTERNATIONAL GROUP, LLP	31 Dec, 2025	237,976	27,990	13.33%	$371,243.00
XTX Topco Ltd	31 Dec, 2025	178,303	178,303	0.00%	$278,153.00
TWO SIGMA INVESTMENTS, LP	31 Dec, 2025	126,160	126,160	0.00%	$196,810.00
STATE STREET CORP	31 Dec, 2025	121,846	8,100	7.12%	$190,080.00
MARSHALL WACE, LLP	31 Dec, 2025	81,011	81,011	0.00%	$126,377.00
ESSEX INVESTMENT MANAGEMENT CO LLC	31 Dec, 2025	77,250	0	0.00%	$120,510.00
INTEGRITY WEALTH ADVISORS, INC.	31 Dec, 2025	70,000	0	0.00%	$95,200.00
TWO SIGMA ADVISERS, LP	31 Dec, 2025	67,500	67,500	0.00%	$105,300.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	51,199	-3,202	-5.89%	$79,747.00
GROUP ONE TRADING LLC	31 Dec, 2025	42,509	12,303	40.73%	$66,314.00
AMERICAN CENTURY COMPANIES INC	31 Dec, 2025	38,543	1,988	5.44%	$60,127.00

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