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Fuel Tech, Inc.

FTEK
Exchange
Nasdaq
Industry
Industrial & Commercial Fans & Blowers & Air Purifing Equip
SEC CIK
0000846913

In the last 90 days, Fuel Tech, Inc. insiders filed 1 open-market purchase and 0 sales; 43 institutions reported holding it in 13F filings for Q2 2026, worth $16.3M in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in Fuel Tech, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
48
+12 vs. Q2 2025
Shares held
7.15M
+1.01M (+16.4%) vs. Q2 2025
Total value
$21.4M
+$5.97M (+38.6%) vs. Q2 2025
New holders
16
11 more added
Sold out
4
9 more reduced

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting FTEK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 48 institutions
Q1 2021: 50 institutionsQ2 2021: 45 institutionsQ3 2021: 39 institutionsQ4 2021: 41 institutionsQ1 2022: 34 institutionsQ2 2022: 30 institutionsQ3 2022: 36 institutionsQ4 2022: 40 institutionsQ1 2023: 37 institutionsQ2 2023: 40 institutionsQ3 2023: 38 institutionsQ4 2023: 36 institutionsQ1 2024: 33 institutionsQ2 2024: 34 institutionsQ3 2024: 36 institutionsQ4 2024: 39 institutionsQ1 2025: 35 institutionsQ2 2025: 36 institutionsQ3 2025: 48 institutionsQ4 2025: 45 institutionsQ1 2026: 46 institutionsQ2 2026: 43 institutions
Value heldQ3 2025: $21.4M
Q1 2021: $25.0MQ2 2021: $13.3MQ3 2021: $8.76MQ4 2021: $7.91MQ1 2022: $7.41MQ2 2022: $6.10MQ3 2022: $6.14MQ4 2022: $6.98MQ1 2023: $7.19MQ2 2023: $8.08MQ3 2023: $7.09MQ4 2023: $7.23MQ1 2024: $7.71MQ2 2024: $6.63MQ3 2024: $6.77MQ4 2024: $7.31MQ1 2025: $7.05MQ2 2025: $15.5MQ3 2025: $21.4MQ4 2025: $11.8MQ1 2026: $9.22MQ2 2026: $16.3M
Institutions holding FTEK and their total value by quarter
QuarterHoldersValue
Q2 202643$16.3M
Q1 202646$9.22M
Q4 202545$11.8M
Q3 202548$21.4M
Q2 202536$15.5M
Q1 202535$7.05M
Q4 202439$7.31M
Q3 202436$6.77M
Q2 202434$6.63M
Q1 202433$7.71M
Q4 202336$7.23M
Q3 202338$7.09M
Q2 202340$8.08M
Q1 202337$7.19M
Q4 202240$6.98M
Q3 202236$6.14M
Q2 202230$6.10M
Q1 202234$7.41M
Q4 202141$7.91M
Q3 202139$8.76M
Q2 202145$13.3M
Q1 202150$25.0M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Fuel Tech, Inc.; share changes are against Q2 2025.

Institutions holding FTEK in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Grace & White Inc1,491,683$4.48M0.79%−142,843−8.7%Reduced
Vanguard Group Inc1,013,864$3.04M0.00%+72,895+7.7%Added
Renaissance Technologies LLC898,906$2.70M0.00%+46,500+5.5%Added
Geode Capital Management, LLC523,818$1.57M0.00%+6,160+1.2%Added
BlackRock, Inc.410,364$1.23M0.00%−654−0.2%Reduced
Peapod Lane Capital LLC356,938$1.07M0.96%−310,576−46.5%Reduced
EAM Investors, LLC338,712$1.02M0.12%+54,772+19.3%Added
US Bancorp304,776$914.3K0.00%00.0%Unchanged
Mercuria Capital Strategies, LLC240,000$720.0K0.95%+240,000New
Jane Street Group, LLC236,922$710.8K0.00%+236,922New
Susquehanna International Group, LLP209,986$630.0K0.00%+209,986New
Murchinson Ltd.150,000$450.0K0.09%+150,000New
Citadel Advisors LLC127,023$381.1K0.00%+96,907+321.8%Added
State Street Corp113,746$341.2K0.00%+16,700+17.2%Added
Essex Investment Management Co LLC77,250$231.8K0.04%00.0%Unchanged
Integrity Wealth Advisors, Inc.70,000$210.0K0.08%00.0%Unchanged
XTX Topco Ltd56,012$168.0K0.01%+56,012New
Dimensional Fund Advisors LP54,401$162.9K0.00%+54,401New
Simplex Trading, LLC42,501$127.0K0.00%+19,590+85.5%Added
Boothbay Fund Management, LLC41,251$123.8K0.00%+41,251New
American Century Companies Inc36,555$109.7K0.00%+36,555New
Gsa Capital Partners LLP36,490$109.0K0.01%+36,490New
Integrated Wealth Concepts LLC35,000$105.0K0.00%+35,000New
Northern Trust Corp31,435$94.3K0.00%−5,387−14.6%Reduced
Goldman Sachs Group Inc31,300$93.9K0.00%+31,300New
Group One Trading, L.P.30,206$90.6K0.00%+30,206New
Cresset Asset Management, LLC25,500$76.5K0.00%00.0%Unchanged
HRT Financial LP23,329$69.0K0.00%+8,217+54.4%Added
Advisory Services Network, LLC21,627$64.9K0.00%+6,627+44.2%Added
Legato Capital Management LLC18,165$54.5K0.01%00.0%Unchanged
GWM Advisors LLC17,653$53.0K0.00%+17,603+35,206.0%Added
Cubist Systematic Strategies, LLC14,709$44.1K0.00%+14,709New
LexAurum Advisors, LLC14,160$42.5K0.01%+2,310+19.5%Added
Covestor Ltd13,187$40.0K0.02%+13,187New
Prelude Capital Management, LLC13,233$39.7K0.00%+13,233New
HighTower Advisors, LLC10,400$31.2K0.00%00.0%Unchanged
Founders Capital Management5,000$15.0K0.01%−15,000−75.0%Reduced
Wells Fargo & Company3,650$10.9K0.00%00.0%Unchanged
New England Capital Financial Advisors LLC2,000$6.00K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.1,200$3.50K0.00%−800−40.0%Reduced
SBI Securities Co., Ltd.829$2.49K0.00%−1,140−57.9%Reduced
Steward Partners Investment Advisory, LLC600$1.80K0.00%00.0%Unchanged
Bryn Mawr Trust Co500$1.50K0.00%00.0%Unchanged
Citigroup Inc474$1.42K0.00%+474New
CKW Financial Group200$1.00K0.00%00.0%Unchanged
Bank of America Corp217$6510.00%−18−7.7%Reduced
Spire Wealth Management200$6000.00%00.0%Unchanged
UBS Group AG97$2910.00%−27,346−99.6%Reduced
Marshall Wace, LLP0$00.00%−25,088−100.0%Sold out
Corsair Capital Management, L.P.0$00.00%−10,000−100.0%Sold out
Raymond James Financial Inc0$00.00%−1,100−100.0%Sold out
Tower Research Capital LLC (TRC)0$00.00%−382−100.0%Sold out