13F

Stock

Fuel Tech, Inc.

FTEK · held by 45 managers

Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025

Reported value

$11.7M

Holders

45

+1 new · −0 exited

Holders’ est. mark

−$37K

Price effect on 2 books still in the name

Largest holder

$2.32M

GRACE & WHITE INC /NY

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Q2 2025Q3 2025Q4 2025Q1 2026

Who holds it

Notable only
InvestorSharesValueEst. markChange
GRACE & WHITE INC /NY1.49M$2.32M—Held
Renaissance Technologies1.15M$1.79M—Held
Vanguard1.13M$1.76M—Held
GEODE CAPITAL MANAGEMENT, LLC518.9K$809.6K—Held
Citadel504K$786.3K—Held
BlackRock, Inc.410.4K$640.2K—Held
Peapod Lane Capital LLC359.6K$561K—Held
US BANCORP \DE\304.8K$475.5K—Held
JANE STREET GROUP, LLC260.8K$406.8K—Held
SUSQUEHANNA INTERNATIONAL GROUP, LLP238K$371.2K—Held
XTX Topco Ltd178.3K$278.2K—Held
Beartown Capital Management, LLC160K$249.6K—Held
TWO SIGMA INVESTMENTS, LP126.2K$196.8K—Held
State Street121.8K$190.1K—Held
MARSHALL WACE, LLP81K$126.4K—Held
ESSEX INVESTMENT MANAGEMENT CO LLC77.3K$120.5K—Held
TWO SIGMA ADVISERS, LP67.5K$105.3K—Held
INTEGRITY WEALTH ADVISORS, INC.70K$95.2K—Held
DIMENSIONAL FUND ADVISORS LP51.2K$79.7K—Held
GROUP ONE TRADING LLC42.5K$66.3K—Held
AMERICAN CENTURY COMPANIES INC38.5K$60.1K—Held
NORTHERN TRUST CORP31.4K$49K—Held
Cresset Asset Management, LLC25.5K$39.8K−$36.7KCut−$36.7K
Legato Capital Management LLC18.2K$28.3K—Held
TWO SIGMA SECURITIES, LLC14.6K$22.7K—Held
Quadrature Capital Ltd11.6K$18.1K—Held
HighTower Advisors, LLC10.4K$16.3K—Held
Founders Capital Management5K$7.8K—Held
Tower Research Capital LLC (TRC)4.29K$6.69K—Held
SIMPLEX TRADING, LLC3.3K$5.15K—Held
NewEdge Advisors, LLC2.33K$3.63K—Held
New England Capital Financial Advisors LLC2K$3.12K—Held
OSAIC HOLDINGS, INC.1.2K$1.87K—Held
WELLS FARGO & COMPANY/MN1.15K$1.79K—Held
SBI Securities Co., Ltd.719$1.12K—Held
Steward Partners Investment Advisory, LLC600$936—Held
Wilmington Savings Fund Society, FSB500$780—Held
BANK OF AMERICA CORP /DE/280$437−$312Cut−$214
GSA CAPITAL PARTNERS LLP32K$50—Held
MORGAN STANLEY21$33—New
Fidelity18$28—Held
Virtu Financial LLC17.3K$27—Held
Covestor Ltd13.2K$21—Held
CKW FINANCIAL GROUP200$0—Held
Motiv8 Investments LLC100$0—Held

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.