FUEL TECH, INC. (FTEK) — Institutional Holders, Q2 2026

43 institutional investment managers reported a FTEK position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $16.3M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

FTEK in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

8

Added to

9

Trimmed

9

Sold out

8

Biggest buyers

  1. Peapod Lane CapitalAdded · +341,750 sh+$755.3K
  2. Marquette Asset ManagementNew · +110,509 sh+$244.2K
  3. BlackRockAdded · +86,129 sh+$190.3K
  4. THOMPSON DAVISNew · +85,800 sh+$189.6K
  5. GSA CAPITAL PARTNERS LLPAdded · +48,889 sh+$108.0K

Biggest sellers

  1. RENAISSANCE TECHNOLOGIESTrimmed · -305,400 sh-$674.9K
  2. CITADEL ADVISORSTrimmed · -202,329 sh-$447.1K
  3. XTX Topco LtdSold out · -118,247 sh-$261.3K
  4. SUSQUEHANNA INTERNATIONAL GROUP, LLPTrimmed · -104,196 sh-$230.3K
  5. TWO SIGMA INVESTMENTSTrimmed · -69,622 sh-$153.9K

FTEK 13F holders ranked 1–43 of 43

Institutional investors reporting a position in FUEL TECH, INC. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
InstitutionValueQoQ
GRACE & WHITE#1 · 1,541,307 sh$3.4M0.0%
RENAISSANCE TECHNOLOGIES#2 · 1,102,406 sh$2.4M-21.7%
VANGUARD CAPITAL MANAGEMENT#3 · 1,005,701 sh$2.2M+1.8%
Peapod Lane Capital#4 · 820,592 sh$1.8M+71.4%
GEODE CAPITAL MANAGEMENT#5 · 522,983 sh$1.2M-1.8%
BlackRock#6 · 496,493 sh$1.1M+21.0%
US BANCORP \DE\#7 · 304,776 sh$673.6K0.0%
GSA CAPITAL PARTNERS LLP#8 · 295,141 sh$652.0K+19.9%
TWO SIGMA INVESTMENTS#9 · 168,457 sh$372.3K-29.2%
Beartown Capital Management#10 · 146,689 sh$324.2K0.0%
VANGUARD FIDUCIARY#11 · 133,459 sh$294.9K+0.7%
STATE STREET#12 · 121,846 sh$269.3K0.0%
Marquette Asset Management#13 · 110,509 sh$244.2KNew
JANE STREET GROUP#14 · 109,483 sh$242.0K+54.6%
THOMPSON DAVIS#15 · 85,800 sh$189.6KNew
ESSEX INVESTMENT MANAGEMENT#16 · 77,159 sh$170.5K-0.1%
NORTHERN#17 · 60,333 sh$133.3K+91.9%
Sentinus#18 · 40,000 sh$88.4KNew
SUSQUEHANNA INTERNATIONAL GROUP, LLP#19 · 35,896 sh$79.3K-74.4%
LexAurum Advisors#20 · 20,160 sh$44.6K+42.4%
CITADEL ADVISORS#21 · 19,070 sh$42.1K-91.4%
Legato Capital Management#22 · 18,165 sh$40.1K0.0%
UBS Group AG#23 · 18,015 sh$39.8KNew
GROUP ONE TRADING, L.P.#24 · 13,903 sh$30.7K-65.4%
DIMENSIONAL FUND ADVISORS#25 · 13,428 sh$29.1K-30.9%
Covestor Ltd#26 · 12,426 sh$27.0K0.0%
HRT FINANCIAL#27 · 11,983 sh$26.0KNew
Scientech Research#28 · 11,441 sh$25.3KNew
SIMPLEX TRADING#29 · 10,491 sh$23.2K+944.9%
HighTower Advisors#30 · 10,440 sh$23.1K0.0%
Founders Capital Management#31 · 6,000 sh$13.3K0.0%
Vanguard Global Advisers#32 · 5,500 sh$12.2K0.0%
WELLS FARGO & COMPANY#33 · 2,019 sh$4.5KNew
New England Capital Financial Advisors#34 · 2,000 sh$4.4K0.0%
OSAIC#35 · 1,200 sh$2.7K0.0%
SBI Securities , Ltd.#36 · 710 sh$1.6K0.0%
Steward Partners Investment Advisory#37 · 600 sh$1.3K0.0%
Wilmington Savings Fund Society, FSB#38 · 500 sh$1.1K0.0%
NewEdge Advisors#39 · 50 sh$111.00New
MORGAN STANLEY#40 · 21 sh$46.000.0%
FMR#41 · 18 sh$40.000.0%
Caitong International Asset Management , Ltd#42 · 1 sh$2.00-66.7%
CKW FINANCIAL GROUP#43 · 200 sh$0.000.0%

Funds that sold out of FTEK in Q2 2026 (8)

Held FTEK at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held FTEK in Q1 2026 and reported no position in Q2 2026.
InstitutionValue in Q1 2026
XTX Topco Ltd118,247 sh$144.3K
Integrated Wealth Concepts35,000 sh$42.7K
Cresset Asset Management25,500 sh$31.1K
MARSHALL WACE, LLP21,770 sh$26.6K
Chicago Partners Investment Group17,088 sh$23.1K
Tower Research Capital (TRC)3,211 sh$3.9K
Advisory Services Network900 sh$1.1K
Orion Capital Management100 sh$122.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.